Federal Capture Intelligence

Top GSA engineering services contractors (NAICS 541330)

Contract actions: October 1, 2021 – September 10, 2026 Updated September 11, 2026 General Services Administration agency guide NAICS 541330 · Engineering Services
Latest 12 months
$190.0M
Net obligations · Down $660.8M vs. $850.7M preceding
Prime contractors
61
With positive obligations in the latest 12 months

Research the GSA federal contracting market for engineering services under NAICS 541330. Compare top federal contractors and market share, reported contract obligations and spending trends, funding-office attribution, recent award activity, contract types, competition, and procurement methods, observed contract vehicle usage, and potential recompete research leads.

Contract obligation trends for engineering services at the General Services Administration

Federal records show $1.7B in net obligations across 1,068 awards in engineering services at the General Services Administration from Oct 1, 2021 through Sep 10, 2026. This market accounts for 4.7% of $35.5B in agency-wide net prime contract obligations over the period shown. Latest 12-month net obligations decreased 77.7% from $850.7M to $190.0M. 9 prime contractors accounted for at least 80% of positive obligations in that latest period.

Fiscal-year activity

FY26 is year-to-date through Sep 10, 2026; earlier years show complete fiscal-year totals.

FY26 year-to-date: $177.6M versus $844.7M through the same date in FY25 (−79.0%).
Net obligations · complete fiscal yearNet obligations · FY26 YTDContract actions
View fiscal-year data table
Fiscal yearNet obligationsContract actionsCoverage
FY2022$189.9M1,190Complete
FY2023$229.0M952Complete
FY2024$212.5M875Complete
FY2025$857.0M730Complete
FY2026$177.6M444YTD through Sep 10, 2026

Market at a glance

All reported prime contract awards
All-period net obligations
$1.7B
1,068 awards · 158 prime contractors
Latest 12-month movement
−77.7%
$190.0M vs. $850.7M
Leading eight prime share
78.3%
Share held by the eight leading prime contractors in the latest 12 months
View agency share, denominators, and set-aside reporting
Agency context
4.7% of $35.5B in agency-wide net obligations.
Set-aside share when reported
59.1% of 132 awards with reported set-aside status.
Set-aside reporting
78 set aside · 54 no set-aside · 936 not reported

What changed in the last 12 months?

Sep 11, 2025–Sep 10, 2026, compared with Sep 11, 2024–Sep 10, 2025.

Competitive shifts

AMERESCO INC lost the most market share
45.7%→0.2%−45.5 percentage points
The contractor now ranks #28 by positive obligations, based on 23 reported actions.
APSI CONSTRUCTION MANAGEMENT climbed the most in the contractor rankings
#23→#3Up 20 places
The contractor accounts for 7.5% of positive obligations across 12 reported actions.
CONSTELLATION NEWENERGY INC had no reported activity in the latest 12 months
$119.8M→$0No latest-period activity
It previously ranked #3 by positive obligations, based on 7 reported actions.

Market structure

Top-five contractor share decreased
88.0%→62.6%−25.4 percentage points
Contractors outside the top five now account for 37.4% of positive obligations.
This market declined more steeply than 95.0% of comparable agency NAICS markets
−77.7%Agency median +5.6%
The agency comparison covers 50 comparable NAICS markets.

Buyer demand

Reported obligations through PBS R5 ACQUISITION MANAGEMENT DIVISION decreased
$227.3M→$5.1M−$222.2M
Latest-period activity spans 14 awards across 10 prime contractors.
View 6 additional material changes

Award activity

AMERESCO INC recorded the largest deobligation action
−$154.1MFeb 24, 2026 action
Reported under PIID 47PF0025F0227 by PBS ENERGY DIVISION. Award net obligations after the action: $217.3M.
View supporting award
AMERESCO INC received an unusually large obligation action
$154.1MFeb 24, 2026 action
Reported under PIID 47PF0025F0227 by PBS ENERGY DIVISION. Award net obligations after the action: $217.3M.
View supporting award

Buyer demand

Reported obligations through PBS ENERGY DIVISION increased
$36.4M→$74.7M+$38.4M
Latest-period activity spans 8 awards across 6 prime contractors.

Competitive shifts

4 contractors were first observed in this market during the latest 12 months
$6.8MLatest 12-month obligations
Contractor-level obligations and first-observed dates appear below. “First observed” applies only to this market and the period shown.
View 4 contractors
ContractorLatest 12 months
CONCURRENT TECHNOLOGIES CORP was the largest newly observed contractor
$4.8MLatest 12-month obligations
First observed in this market on May 26, 2026, the contractor now ranks #11 by positive obligations across 6 reported actions.
CONSTELLATION ENERGY SOLUTIONS, LLC recorded the largest net deobligation
$247K→−$4.4M−$4.6M
The contractor now is unranked by positive obligations, based on 8 reported actions.
How these findings are calculated

Findings are selected from matched-period changes in obligations, share, rank, funding offices, concentration, reported set-asides, material award actions, and agency-peer outliers. Related signals are combined, and only material evidence-backed changes are shown. Review the full methodology.

Federal contract obligations by funding office

See how positive obligations were attributed across funding offices in the 12 months ending Sep 10, 2026.

38.8% of positive obligations were attributed to PBS ENERGY DIVISION. That represents $74.7M, up $38.4M from the preceding 12 months.

Latest 12-month share of positive obligations; the gray segment represents all other reported offices.

  1. PBS ENERGY DIVISION38.8% · $74.7M · up $38.4M
  2. PBS R11 BUILDING SERVICES DIVISION CENTER 110.6% · $20.5M · down $167.7M
  3. PBS R1 ACQ MANAGEMENT DIVISION7.8% · $15.0M · up $6.3M
  4. PBS PROJECT DELIVERY CAPITAL CONSTRUCTION - BRANCH WEST7.6% · $14.6M · up $14.6M
  5. PBS R11 BUILDING SERVICES DIVISION CENTER 36.3% · $12.1M · down $182.5M
  6. All other reported offices29.0% of positive obligations
View reported office rankings, comparisons, and evidence

USAspending assigns each award to a funding office. That office may differ from the requiring activity, program office, contracting office, individual buyer, or actual customer.

  1. Reported funding office

    PBS ENERGY DIVISION

    #1Up 4 from #5

    Latest 12 months

    $74.7M

    38.8% of positive obligations

    Versus preceding 12 months

    +$38.4M

    6 active prime contractors · 8 awards

    View office comparison and evidence

    Reported obligations increased 105.5% from $36.4M to $74.7M. The office’s share of positive obligations moved from 4.3% to 38.8%, a change of +34.5 percentage points.

    The latest period contains 21 actions across 8 awards and 1 newly active prime contractor. The preceding period contained 5 active prime contractors and 6 awards.

    Leading award-level changes

  2. Reported funding office

    PBS R11 BUILDING SERVICES DIVISION CENTER 1

    #2Up 1 from #3

    Latest 12 months

    $20.5M

    10.6% of positive obligations

    Versus preceding 12 months

    −$167.7M

    2 active prime contractors · 2 awards

    View office comparison and evidence

    Reported obligations decreased 89.1% from $188.2M to $20.5M. The office’s share of positive obligations moved from 22.1% to 10.6%, a change of −11.5 percentage points.

    The latest period contains 12 actions across 2 awards and 1 newly active prime contractor. The preceding period contained 3 active prime contractors and 3 awards.

  3. Reported funding office

    PBS R1 ACQ MANAGEMENT DIVISION

    #3Up 3 from #6

    Latest 12 months

    $15.0M

    7.8% of positive obligations

    Versus preceding 12 months

    +$6.3M

    13 active prime contractors · 31 awards

    View office comparison and evidence

    Reported obligations increased 72.9% from $8.7M to $15.0M. The office’s share of positive obligations moved from 1.0% to 7.8%, a change of +6.8 percentage points.

    The latest period contains 65 actions across 31 awards and 2 newly active prime contractors. The preceding period contained 15 active prime contractors and 62 awards.

  4. Reported funding office

    PBS PROJECT DELIVERY CAPITAL CONSTRUCTION - BRANCH WEST

    #4New to the positive-obligation ranking

    Latest 12 months

    $14.6M

    7.6% of positive obligations

    Versus preceding 12 months

    +$14.6M

    1 active prime contractor · 2 awards

    View office comparison and evidence

    Reported obligations rose from $0 to $14.6M. The office’s share of positive obligations moved from 0% to 7.6%, a change of +7.6 percentage points.

    The latest period contains 2 actions across 2 awards and 1 newly active prime contractor. The preceding period contained 0 active prime contractors and 0 awards.

  5. Reported funding office

    PBS R11 BUILDING SERVICES DIVISION CENTER 3

    #5Down 3 from #2

    Latest 12 months

    $12.1M

    6.3% of positive obligations

    Versus preceding 12 months

    −$182.5M

    3 active prime contractors · 3 awards

    View office comparison and evidence

    Reported obligations decreased 93.8% from $194.6M to $12.1M. The office’s share of positive obligations moved from 22.9% to 6.3%, a change of −16.6 percentage points.

    The latest period contains 6 actions across 3 awards. The preceding period contained 6 active prime contractors and 5 awards.

  6. Reported funding office

    PBS R11 BUILDING SERVICES DIVISION CENTER 4

    #6Up 3 from #9

    Latest 12 months

    $7.2M

    3.7% of positive obligations

    Versus preceding 12 months

    +$223K

    1 active prime contractor · 1 award

    View office comparison and evidence

    Reported obligations increased 3.2% from $7.0M to $7.2M. The office’s share of positive obligations moved from 0.82% to 3.7%, a change of +2.9 percentage points.

    The latest period contains 2 actions across 1 award. The preceding period contained 1 active prime contractor and 1 award.

  7. Reported funding office

    PBS OFFICE OF ACQUISITION MANAGEMENT

    #7New to the positive-obligation ranking

    Latest 12 months

    $5.3M

    2.8% of positive obligations

    Versus preceding 12 months

    +$5.3M

    1 active prime contractor · 2 awards

    View office comparison and evidence

    Reported obligations rose from $0 to $5.3M. The office’s share of positive obligations moved from 0% to 2.8%, a change of +2.8 percentage points.

    The latest period contains 2 actions across 2 awards and 1 newly active prime contractor. The preceding period contained 0 active prime contractors and 0 awards.

  8. Reported funding office

    PBS R5 ACQUISITION MANAGEMENT DIVISION

    #8Down 7 from #1

    Latest 12 months

    $5.1M

    2.6% of positive obligations

    Versus preceding 12 months

    −$222.2M

    10 active prime contractors · 14 awards

    View office comparison and evidence

    Reported obligations decreased 97.8% from $227.3M to $5.1M. The office’s share of positive obligations moved from 26.7% to 2.6%, a change of −24.1 percentage points.

    The latest period contains 29 actions across 14 awards and 1 newly active prime contractor. The preceding period contained 16 active prime contractors and 24 awards.

    Leading award-level changes

  9. Reported funding office

    GSA GAS AAS REGION 6

    #9New to the positive-obligation ranking

    Latest 12 months

    $4.8M

    2.5% of positive obligations

    Versus preceding 12 months

    +$4.8M

    1 active prime contractor · 1 award

    View office comparison and evidence

    Reported obligations rose from $0 to $4.8M. The office’s share of positive obligations moved from 0% to 2.5%, a change of +2.5 percentage points.

    The latest period contains 5 actions across 1 award and 1 newly active prime contractor. The preceding period contained 0 active prime contractors and 0 awards.

  10. Reported funding office

    PBS OFFICE OF FACILITIES MANAGEMENT

    #10New to the positive-obligation ranking

    Latest 12 months

    $4.0M

    2.1% of positive obligations

    Versus preceding 12 months

    +$4.0M

    2 active prime contractors · 2 awards

    View office comparison and evidence

    Reported obligations rose from $0 to $4.0M. The office’s share of positive obligations moved from 0% to 2.1%, a change of +2.1 percentage points.

    The latest period contains 4 actions across 2 awards. The preceding period contained 3 active prime contractors and 3 awards.

  11. Reported funding office

    PBS R9 AMD CAPITAL PROJECTS

    #14Down 6 from #8

    Latest 12 months

    $2.3M

    1.2% of positive obligations

    Versus preceding 12 months

    −$5.2M

    3 active prime contractors · 4 awards

    View office comparison and evidence

    Reported obligations decreased 69.8% from $7.5M to $2.3M. The office’s share of positive obligations moved from 0.88% to 1.2%, a change of +0.3 percentage points.

    The latest period contains 9 actions across 4 awards and 1 newly active prime contractor. The preceding period contained 5 active prime contractors and 7 awards.

  12. Reported funding office

    PBS R8 ACQUISITION MANAGEMENT DIVISION

    No positive-obligation rank

    Latest 12 months

    −$1.5M

    0% of positive obligations

    Versus preceding 12 months

    −$135.6M

    13 active prime contractors · 17 awards

    View office comparison and evidence

    Reported obligations moved from $134.1M in net obligations to $1.5M in net deobligations. The office’s share of positive obligations moved from 15.8% to 0%, a change of −15.8 percentage points.

    The latest period contains 33 actions across 17 awards and 1 newly active prime contractor. The preceding period contained 18 active prime contractors and 24 awards.

Contract types, competition, and procurement methods

From Sep 11, 2025 through Sep 10, 2026, 153 awards had positive obligations totaling $211.6M. Subject to Multiple Award Fair Opportunity was the leading reported procedure, accounting for 89.2% of positive obligations. Awards with a reported parent IDV accounted for 97.2%. Reported awards used contract vehicles such as ESPC Gen4, GENERAL SERVICES ADMINISTRATION, PUBLIC, and OASIS.

Leading award type
71.3%
Delivery Order
Leading reported procedure
89.2%
Subject to Multiple Award Fair Opportunity
Reported parent IDV
97.2%
of positive obligations had a reported parent IDV
Median reported offers
3
119 of 153 awards reported offers

Observed contract vehicles

Only exact reported parent-PIID matches are shown; missing parent IDs are not inferred.

Buying method changes

Compared with Sep 11, 2024–Sep 10, 2025. Based on 153 current awards and 199 preceding awards with positive net obligations.

Exactly matched vehicle obligation share
15.5%
Down from 76.4% in the preceding period
How to read these changes

Directional color and the Up or Down labels show historical movement only. Green does not mean favorable and red does not mean unfavorable; neither predicts a future procurement method.

Same-NAICS comparison

Compared with the NAICS 541330 peer median, parent-IDV obligation share is 9.1 percentage points higher, reported full-and-open obligation share is 53.5 percentage points higher, delivery-order obligation share is 1.8 percentage points lower, and median positive award obligations are 58.1% lower.

MeasureThis marketPeer medianDifference
Parent-IDV obligation share97.2%88.2%+9.1 pts
Reported full-and-open obligation share89.6%36.1%+53.5 pts
Delivery-order obligation share71.3%73.1%-1.8 pts
Median positive award obligations$152K$363K-58.1%
Peer cohort and comparison limits

The peer median gives each of the 15 eligible agency markets equal weight. The included agency markets are:

Agency mission, scale, and acquisition context can differ. Peer position does not establish market attractiveness or predict a future procurement method.

View buying-method details and data coverage

Award types

Reported valueAwardsPositive obligationsShare
Delivery Order(C)99$150.8M71.3%
BPA Call(A)40$54.9M26.0%
Definitive Contract(D)8$5.7M2.7%
Purchase Order(B)6$183K0.090%

Reported parent-award types

Reported valueAwardsPositive obligationsShare
IDC(B)79$144.9M68.5%
BPA(E)40$54.9M26.0%
FSS(C)20$5.9M2.8%
Not reported14$5.9M2.8%

Single- or multiple-award parent structure

Reported valueAwardsPositive obligationsShare
Multiple Award(M)106$201.8M95.4%
Single Award(S)33$3.9M1.9%
Not reported14$5.9M2.8%

Solicitation procedures

Reported valueAwardsPositive obligationsShare
Subject to Multiple Award Fair Opportunity(MAFO)89$188.6M89.2%
Mafo(SUBJECT TO MULTIPLE AWARD FAIR OPPORTUNITY)19$13.2M6.2%
Negotiated Proposal/Quote(NP)1$2.9M1.4%
Only One Source(SSS)9$2.7M1.3%
Architect-Engineer FAR 6.102(AE)24$2.3M1.1%
Ae(ARCHITECT-ENGINEER FAR 6.102)4$1.4M0.68%
Other reported values7$366K0.17%

Extent competed

Reported valueAwardsPositive obligationsShare
Full and Open Competition(A)72$189.5M89.6%
A(FULL AND OPEN COMPETITION)15$12.8M6.1%
Full and Open Competition After Exclusion of Sources(D)43$4.4M2.1%
Not Available for Competition(B)6$2.5M1.2%
D(FULL AND OPEN COMPETITION AFTER EXCLUSION OF SOURCES)8$1.8M0.85%
Not Competed(C)3$213K0.10%
Other reported values6$333K0.16%

Fair-opportunity and limited-source reporting

Reported valueAwardsPositive obligationsShare
Fair Opportunity Given(FAIR)93$184.8M87.4%
Follow-on Action Following Competitive Initial Action(FOO)6$12.8M6.0%
Competitive Set Aside(CSA)5$2.1M0.97%
Only One Source - Other(ONE)1$1.0M0.47%
Other Statutory Authority(OSA)1$879K0.42%
Minimum Guarantee(MG)2$273K0.13%
Not reported45$9.7M4.6%

Other-than-full-and-open reasons

Reported valueAwardsPositive obligationsShare
Authorized by Statute (FAR 6.302-5(A)(2)(I))(OTH)7$2.7M1.3%
Only One Source-Other (FAR 6.302-1 Other)(ONE)2$189K0.090%
SAP Non-Competition (FAR 13)(SP2)5$123K0.060%
Mobilization, Essential R&d (FAR 6.302-3)(MES)1$23K0.010%
Not reported138$208.5M98.6%

Contract pricing types

Reported valueAwardsPositive obligationsShare
Firm Fixed Price(J)126$191.4M90.5%
J(FIRM FIXED PRICE)24$14.8M7.0%
Labor Hours(Z)2$5.3M2.5%
K(FIXED PRICE WITH ECONOMIC PRICE ADJUSTMENT)1$60K0.030%

Product or Service Codes

Reported valueAwardsPositive obligationsShare
Repair or Alteration of Office Buildings(Z2AA)28$107.5M50.8%
Special Studies/Analysis- Building Technology(B540)16$37.0M17.5%
Support- Professional: Other(R499)24$21.1M10.0%
Support- Professional: Engineering/Technical(R425)14$14.8M7.0%
Architect and Engineering- Construction: Office Buildings(C1AA)24$11.8M5.6%
Support- Professional: Program Evaluation/Review/Development(R410)1$4.8M2.3%
Other reported values46$14.6M6.9%

Awarding subagencies

Reported valueAwardsPositive obligationsShare
Public Buildings Service(4740)150$206.3M97.5%
Federal Acquisition Service(4732)2$4.8M2.3%
Office of Administrative Services(4773)1$435K0.21%

Awarding offices

Reported valueAwardsPositive obligationsShare
Pbs R11 Building Services Division Center 1(47PM05)2$69.2M32.7%
Pbs Energy Division(47PA10)15$32.2M15.2%
Pbs R11 Building Services Division Center 3(47PM07)2$21.9M10.3%
Pbs R1 Acq Management Division(47PB00)12$15.0M7.1%
Pbs Project Delivery Capital Construction - Branch West(47PB54)2$14.6M6.9%
Pbs R8 Acquisition Management Division(47PJ00)8$9.7M4.6%
Other reported values112$49.0M23.2%

Reported parent IDVs

Reported valueAwardsPositive obligationsShare
DEAM3609GO29035(8900)2$59.4M28.1%
DEAM3698GO10352(8900)2$19.6M9.3%
47PD0224A0003(4740)2$14.6M6.9%
47PB0023A0002(4740)1$12.0M5.7%
47PD0224A0001(4740)4$11.8M5.6%
DEEE0008032(8900)2$11.3M5.3%
DEAM3609GO29029(8900)4$10.5M5.0%
DEAM3609GO29044(8900)2$9.9M4.7%
Other reported values120$56.6M26.8%
Not reported14$5.9M2.8%

Exact vehicle-match evidence

Reported award data linked 11 awards to a specific catalog vehicle.

Offers, award size, and timing

Median reported offers
3 median
119 reported · 34 not reported
Positive award obligations
$152K median
$56K–$599K middle 50%
Reported performance period
962 days (~2.6 years) median
153 reported · 0 not reported

Calculations group latest-period actions by award, retain awards with positive net obligations for share denominators, and use each award's latest reported USAspending procurement fields as of Sep 10, 2026. Blank competition, pricing, PSC, or parent-IDV values remain not reported; they are not inferred. Offer counts must be positive and below the FPDS 999 placeholder. Awarding organizations can differ from the funding agency that defines this page.

Top federal contractors

Latest 12-month market share, concentration, and complete prime contractor rankings across the period shown.

Prime contractor concentration
9 of 61prime contractors account for at least 80% of positive obligations in the last 12 months
Largest prime contractor
30.4%of positive obligations in the last 12 months
Leading four prime contractors
55.3%of positive obligations in the last 12 months
Leading eight prime contractors
78.3%of positive obligations in the last 12 months

Based on $195.3M in positive obligations during the 12 months ending Sep 10, 2026. Individual shares and movement appear in the searchable rankings below. Movement compares with Sep 11, 2024–Sep 10, 2025.

Last 12mo obligation volume: Highest positive obligations first; net deobligations follow by magnitude; contractors with no activity in the last 12 months follow by all-period obligations. Ranks use the complete contractor list and remain fixed when search narrows the results.

15 leading contractors
  1. #1

    Last 12mo obligations

    $59.5M

    30.4%

    Dollar movement

    +$2.0M

    vs. prior 12 months

    Last 12mo awards

    7 awards

    12 actions

    Historical and award details for HONEYWELL INTERNATIONAL, INC
    Obligations: prior → latest
    $57.5M → $59.5M
    +3.4%
    Share: prior → latest
    6.8% → 30.4%
    +23.7 percentage points
    All-period obligations
    $277.6M
    16.6% of all-period positive obligations · 14 awards
    Recorded activity
    Since Nov 3, 2021
    through Jul 22, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside40
    Not reported34
    Reported small business00
    All-period set-aside types

    None reported.

  2. #2

    Last 12mo obligations

    $19.6M

    10.0%

    Dollar movement

    +$568K

    vs. prior 12 months

    Last 12mo awards

    2 awards

    3 actions

    Historical and award details for HONEYWELL BUILDING SOLUTIONS SES CORP
    Obligations: prior → latest
    $19.0M → $19.6M
    +3.0%
    Share: prior → latest
    2.2% → 10.0%
    +7.8 percentage points
    All-period obligations
    $92.3M
    5.5% of all-period positive obligations · 3 awards
    Recorded activity
    Since Nov 9, 2021
    through Feb 27, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported22
    Reported small business00
    All-period set-aside types

    None reported.

  3. #3

    Last 12mo obligations

    $14.7M

    7.5%

    Dollar movement

    +$13.6M

    vs. prior 12 months

    Last 12mo awards

    5 awards

    12 actions

    Historical and award details for APSI CONSTRUCTION MANAGEMENT
    Obligations: prior → latest
    $1.1M → $14.7M
    +1245.9%
    Share: prior → latest
    0.13% → 7.5%
    +7.4 percentage points
    All-period obligations
    $19.6M
    1.2% of all-period positive obligations · 17 awards
    Recorded activity
    Since Oct 14, 2021
    through Jun 22, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside11
    Reported no set-aside00
    Not reported43
    Reported small business54
    All-period set-aside types
    • 2 · Total small business
  4. #4

    Last 12mo obligations

    $14.2M

    7.3%

    Dollar movement

    +$7.8M

    vs. prior 12 months

    Last 12mo awards

    4 awards

    6 actions

    Historical and award details for JACOBS ENGINEERING GROUP INC.
    Obligations: prior → latest
    $6.5M → $14.2M
    +120.2%
    Share: prior → latest
    0.76% → 7.3%
    +6.5 percentage points
    All-period obligations
    $23.8M
    1.4% of all-period positive obligations · 8 awards
    Recorded activity
    Since Sep 26, 2023
    through Aug 10, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported45
    Reported small business00
    All-period set-aside types

    None reported.

  5. #5

    Last 12mo obligations

    $14.2M

    7.3%

    Dollar movement

    +$5.0M

    vs. prior 12 months

    Last 12mo awards

    13 awards

    23 actions

    Historical and award details for AECOM TECHNICAL SERVICES, INC.
    Obligations: prior → latest
    $9.3M → $14.2M
    +53.4%
    Share: prior → latest
    1.1% → 7.3%
    +6.2 percentage points
    All-period obligations
    $45.5M
    2.7% of all-period positive obligations · 35 awards
    Recorded activity
    Since Oct 5, 2021
    through Sep 8, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported1312
    Reported small business00
    All-period set-aside types

    None reported.

  6. #6

    Last 12mo obligations

    $11.3M

    5.8%

    Dollar movement

    −$14.1M

    vs. prior 12 months

    Last 12mo awards

    3 awards

    8 actions

    Historical and award details for JOHNSON CONTROLS GOVERNMENT SYSTEMS, LLC
    Obligations: prior → latest
    $25.4M → $11.3M
    −55.6%
    Share: prior → latest
    3.0% → 5.8%
    +2.8 percentage points
    All-period obligations
    $84.0M
    5.0% of all-period positive obligations · 5 awards
    Recorded activity
    Since Nov 12, 2021
    through Aug 12, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported33
    Reported small business00
    All-period set-aside types

    None reported.

  7. #7

    Last 12mo obligations

    $9.9M

    5.1%

    Dollar movement

    +$88K

    vs. prior 12 months

    Last 12mo awards

    2 awards

    5 actions

    Historical and award details for TRANE U.S. INC.
    Obligations: prior → latest
    $9.8M → $9.9M
    +0.9%
    Share: prior → latest
    1.1% → 5.1%
    +3.9 percentage points
    All-period obligations
    $55.6M
    3.3% of all-period positive obligations · 4 awards
    Recorded activity
    Since Nov 10, 2021
    through Jul 6, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported22
    Reported small business00
    All-period set-aside types

    None reported.

  8. #8

    Last 12mo obligations

    $9.5M

    4.9%

    Dollar movement

    −$147.7M

    vs. prior 12 months

    Last 12mo awards

    1 award

    7 actions

    Historical and award details for CEG SOLUTIONS LLC
    Obligations: prior → latest
    $157.2M → $9.5M
    −94.0%
    Share: prior → latest
    18.5% → 4.9%
    −13.6 percentage points
    All-period obligations
    $166.7M
    10.0% of all-period positive obligations · 1 award
    Recorded activity
    Since Dec 18, 2024
    through Mar 26, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported11
    Reported small business00
    All-period set-aside types

    None reported.

  9. #9

    Last 12mo obligations

    $5.5M

    2.8%

    Dollar movement

    +$1.6M

    vs. prior 12 months

    Last 12mo awards

    3 awards

    6 actions

    Historical and award details for SIEMENS GOVERNMENT TECHNOLOGIES INC
    Obligations: prior → latest
    $3.9M → $5.5M
    +41.2%
    Share: prior → latest
    0.46% → 2.8%
    +2.4 percentage points
    All-period obligations
    $20.4M
    1.2% of all-period positive obligations · 6 awards
    Recorded activity
    Since Oct 21, 2021
    through Aug 10, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported33
    Reported small business00
    All-period set-aside types

    None reported.

  10. #10

    Last 12mo obligations

    $5.3M

    2.7%

    Dollar movement

    +$1.2M

    vs. prior 12 months

    Last 12mo awards

    21 awards

    41 actions

    Historical and award details for AFG GROUP INC.
    Obligations: prior → latest
    $4.2M → $5.3M
    +28.3%
    Share: prior → latest
    0.49% → 2.7%
    +2.2 percentage points
    All-period obligations
    $23.7M
    1.4% of all-period positive obligations · 77 awards
    Recorded activity
    Since Oct 6, 2021
    through Sep 1, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside77
    Reported no set-aside00
    Not reported1418
    Reported small business2125
    All-period set-aside types
    • 13 · Total small business
    • 3 · WOSB set-aside
    • 1 · Partial small business
  11. #11

    Last 12mo obligations

    $4.8M

    2.4%

    Dollar movement

    +$4.8M

    vs. prior 12 months

    Last 12mo awards

    1 award

    6 actions

    Historical and award details for CONCURRENT TECHNOLOGIES CORP
    Obligations: prior → latest
    $0 → $4.8M
    Not comparable
    Share: prior → latest
    0% → 2.4%
    +2.4 percentage points
    All-period obligations
    $4.8M
    0.29% of all-period positive obligations · 1 award
    Recorded activity
    Since May 26, 2026
    through Aug 18, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported10
    Reported small business00
    All-period set-aside types

    None reported.

  12. #12

    Last 12mo obligations

    $3.2M

    1.6%

    Dollar movement

    +$93K

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for NORESCO, LLC
    Obligations: prior → latest
    $3.1M → $3.2M
    +3.0%
    Share: prior → latest
    0.37% → 1.6%
    +1.3 percentage points
    All-period obligations
    $16.3M
    0.98% of all-period positive obligations · 3 awards
    Recorded activity
    Since May 13, 2022
    through Jun 29, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported11
    Reported small business00
    All-period set-aside types

    None reported.

  13. #13

    Last 12mo obligations

    $2.9M

    1.5%

    Dollar movement

    −$897K

    vs. prior 12 months

    Last 12mo awards

    1 award

    3 actions

    Historical and award details for ABM INDUSTRIES INC
    Obligations: prior → latest
    $3.8M → $2.9M
    −23.5%
    Share: prior → latest
    0.45% → 1.5%
    +1.1 percentage points
    All-period obligations
    $10.5M
    0.63% of all-period positive obligations · 1 award
    Recorded activity
    Since Jun 4, 2024
    through Jul 28, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside11
    Not reported00
    Reported small business00
    All-period set-aside types

    None reported.

  14. #14

    Last 12mo obligations

    $2.0M

    1.0%

    Dollar movement

    −$1.0M

    vs. prior 12 months

    Last 12mo awards

    10 awards

    17 actions

    Historical and award details for BROWN CONSTRUCTION SERVICES, INC
    Obligations: prior → latest
    $3.0M → $2.0M
    −33.5%
    Share: prior → latest
    0.36% → 1.0%
    +0.7 percentage points
    All-period obligations
    $16.0M
    0.96% of all-period positive obligations · 46 awards
    Recorded activity
    Since Oct 1, 2021
    through Aug 10, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside34
    Reported no set-aside00
    Not reported714
    Reported small business1018
    All-period set-aside types
    • 8 · Total small business
    • 1 · Partial small business
  15. #15

    Last 12mo obligations

    $1.9M

    0.97%

    Dollar movement

    +$60K

    vs. prior 12 months

    Last 12mo awards

    3 awards

    6 actions

    Historical and award details for SCHNEIDER ELECTRIC BUILDINGS AMERICAS, INC.
    Obligations: prior → latest
    $1.8M → $1.9M
    +3.2%
    Share: prior → latest
    0.22% → 0.97%
    +0.8 percentage points
    All-period obligations
    $8.5M
    0.51% of all-period positive obligations · 5 awards
    Recorded activity
    Since Nov 14, 2021
    through May 11, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported33
    Reported small business00
    All-period set-aside types

    None reported.

Potential federal contract recompetes

Investigate potential recompetes surfaced by near-term end dates, award value, and recent contract changes.

HONEYWELL BUILDING SOLUTIONS SES CORP

FUNDING MODIFICATION FOR DEBT SERVICE YEAR 23 (2026)

$40.1M is obligated on an award with a reported potential end date of February 29, 2028.

Performance period

79.5%

As of Sep 10, 2026Potential end Feb 29, 2028

Current award value as a share of potential value

94.1%

$40.1M current$42.6M potential
Supporting data

Reported performance starts Jan 1, 2021.

Current performance is reported through Dec 31, 2026.

$40.1M is obligated against $40.1M in current reported award value (100.0%).

Obligations are compared with current reported award value, not treated as a contract ceiling.

PIID 47PM0721F0053

These are research leads, not confirmed recompetes. USAspending records through Sep 10, 2026; reported dates and values can change through later modifications.

Recent federal contract award activity

Recent contract actions with unusually large obligation changes or meaningful shifts in contractor and funding-office activity.

Modification

This action

+$154.1M

AMERESCO INC

PBS ENERGY DIVISION

ENERGY SAVINGS PERFORMANCE CONTRACT IN IL MN WI PARTIAL TERMINATION. WORK AT 11 BUILDINGS REMOVED FROM SCOPE. TOTAL CONTRACT VALUE HAS BEEN REDUCED BY 80,406,444. PERFORMANCE PERIOD WAS REDUCED FROM 11-2048 TO 12-2043. MOD PS0003

Why it stands out

One action equaled at least half of the market’s latest 12-month positive obligations.

The $154.1M action represented 78.9% of the market’s positive obligations over the latest 12 months.

Award net obligations
$217.3M
Share of 12-month positive obligations
78.9%
Supporting data
Prime contractor
#28 · 0.22% share
$388.9M net decline despite this positive action
Funding office
#1 · 38.8% attributed share
up 4 ranks · +34.5 percentage points · $38.4M net increase; action exceeded it by $115.7M
Related:Largest deobligation actionUnusually large action
PIID 47PF0025F0227 · Mod PS0003
Deobligation

This action

−$82.4M

AMERESCO INC

PBS R8 ACQUISITION MANAGEMENT DIVISION

ESPC DE-OBLIGATION OF FUNDS WILL BE RE-ALLOCATED IN ANOTHER MODIFICATION

Why it stands out

This award recorded a material contraction.

The action removed $82.4M. A deobligation does not by itself show lower requirement demand.

Award net obligations
$111.9M
Share of 12-month positive obligations
42.2%
Supporting data
Funding office
0% attributed share
−15.8 percentage points · $135.6M net decline; action accounted for 60.7%
PIID 47PJ0025F0066 · Mod PA0006
Deobligation

This action

−$108.7M

CONSTELLATION ENERGY SOLUTIONS, LLC

PBS R11 BUILDING SERVICES DIVISION CENTER 3

DE OBLIGATION OF IRA FUNDS FOR NDER 6 R11

Why it stands out

This award recorded a material contraction.

The action removed $108.7M. A deobligation does not by itself show lower requirement demand.

Award net obligations
$114.8M
Share of 12-month positive obligations
55.6%
Supporting data
Funding office
#5 · 6.3% attributed share
down 3 ranks · −16.6 percentage points · $182.5M net decline; action accounted for 59.6%
PIID 47PM0725F0008 · Mod PA0012
Modification

This action

+$11.7M

APSI CONSTRUCTION MANAGEMENT

PBS R1 ACQ MANAGEMENT DIVISION

MODIFICATION TO EXTEND CONSTRUCTION MANAGEMENT FOR THE NEW LAND PORT OF ENTRY (LPOE) IN HIGHGATE VT

Why it stands out

The contractor climbed 20 positions in this market.

It now ranks #3 by positive obligations over the latest 12 months.

Award net obligations
$13.4M
Share of 12-month positive obligations
6.0%
Supporting data
Prime contractor
#3 · 7.5% share
up 20 ranks · +7.4 percentage points · $13.6M net increase; action accounted for 86.1%
Funding office
#3 · 7.8% attributed share
up 3 ranks · +6.8 percentage points · $6.3M net increase; action exceeded it by $5.4M
Related:Largest rank gain
PIID 47PB0024F0204 · Mod PS0006
Base award

This action

+$8.3M

JACOBS ENGINEERING GROUP INC.

PBS PROJECT DELIVERY CAPITAL CONSTRUCTION - BRANCH WEST

RAUL HECTOR CASTRO LAND PORT OF ENTRY EXPANSION AND MODERNIZATION PROJECT. CONSTRUCTION MANAGER ADVISOR & COMMISSIONING PROVIDER FOR DESIGN BUILD PROJECT DELIVERY. SOLICITATION # 47PK0125Q0008, BASE AWARD NO. 47PD0224A0003, BPA CALL # 47PB5426F0002.

Why it stands out

The contractor climbed 6 positions in this market.

It now ranks #4 by positive obligations over the latest 12 months.

Award net obligations
$8.3M
Share of 12-month positive obligations
4.2%
Supporting data
Prime contractor
#4 · 7.3% share
up 6 ranks · +6.5 percentage points · $7.8M net increase; action exceeded it by $516K
Funding office
#4 · 7.6% attributed share
+7.6 percentage points · $14.6M net increase; action accounted for 56.8%
PIID 47PB5426F0002
Modification

This action

+$52.0M

HONEYWELL INTERNATIONAL, INC

PBS ENERGY DIVISION

YEAR 13 ANNUAL FUNDING MODIFICATION FOR DEBT SERVICE AND PERFORMANCE PERIOD EXPENSES.

Why it stands out

One action equaled at least a quarter of the market’s latest 12-month positive obligations.

The $52.0M action represented 26.6% of the market’s positive obligations over the latest 12 months.

Award net obligations
$323.0M
Share of 12-month positive obligations
26.6%
PIID 47PM0721F0110 · Mod PO0032
View recent award activity by date (10)
  1. JACOBS PROJECT MANAGEMENT COModification · PIID 47PB0024F0157
    Action+$33K
    Award net obligations$1.6M
  2. SUMMER CONSULTANTS, INC.Base award · PIID 47PC5226F0551
    Action+$10K
    Award net obligations$10K
  3. AECOM TECHNICAL SERVICES, INC.Modification · PIID 47PF0021F0174
    Action+$90K
    Award net obligations$595K
  4. SCDATACOM, LLCBase award · PIID 47QSSC26FD6WT
    Action+$60K
    Award net obligations$60K
  5. ABM FACILITY SUPPORT SERVICES, LLCDeobligation · PIID 47PE0020F0006
    Action−$83K
    Award net obligations$19.5M
  6. AFG GROUP INC.Deobligation · PIID 47PE0420F0010
    Action−$1.0M
    Award net obligations$8.7M
  7. LERA CONSULTING STRUCTURAL ENGINEERS, RLLPBase award · PIID 47PH5326F0059
    Action+$934K
    Award net obligations$934K
  8. EA ENGINEERING, SCIENCE, AND TECHNOLOGY, INC., PBCModification · PIID 47PD0224P0003
    Action+$21K
    Award net obligations$93K
  9. AECOM TECHNICAL SERVICES, INC.Base award · PIID 47PB5126F0020
    Action+$599K
    Award net obligations$599K
  10. BAILEY EDWARD DESIGN, INCBase award · PIID 47PE5426F0373
    Action+$77K
    Award net obligations$77K

GSA engineering services market FAQs

Answers based on reported federal contract data.

Who are the top GSA engineering services contractors?

In the 12 months through September 10, 2026, HONEYWELL INTERNATIONAL, INC, HONEYWELL BUILDING SOLUTIONS SES CORP, and APSI CONSTRUCTION MANAGEMENT were the leading GSA engineering services prime contractors by positive obligations.

  1. #1

    HONEYWELL INTERNATIONAL, INC

    $59,459,490 in positive obligations

  2. #2

    HONEYWELL BUILDING SOLUTIONS SES CORP

    $19,586,173 in positive obligations

  3. #3

    APSI CONSTRUCTION MANAGEMENT

    $14,735,174 in positive obligations

Rankings use reported USAspending award data.

Did GSA contract obligations decrease in the engineering services market?

Yes. Measured by net prime contract obligations, reported GSA activity in the engineering services market decreased 77.7% from $850,725,702 in the preceding 12 months to $189,965,065 in the 12 months through September 10, 2026.

Latest 12 months
$189,965,065
Net prime contract obligations
Preceding 12 months
$850,725,702
Net prime contract obligations
Change
−77.7%
Between matched 12-month periods

Reported contract actions, not outlays or a forecast.

What recent GSA contract award activity was reported in the engineering services market?

Recent GSA contract award activity reported in the engineering services market included actions for AMERESCO INC, CONSTELLATION ENERGY SOLUTIONS, LLC, and APSI CONSTRUCTION MANAGEMENT during the 12 months through September 10, 2026.

Action obligations are transaction-level amounts, not current award-level obligations.

Which procurement methods were reported for GSA contracts under NAICS 541330?

From September 11, 2025 through September 10, 2026, GSA reported 153 positive-obligation awards for engineering services under NAICS 541330. The leading award type was delivery order. The leading reported procedure was subject to multiple award fair opportunity.

Positive-obligation awards
153
Leading reported procedure
Subject to Multiple Award Fair Opportunity
89.2% of positive obligations
Leading award type
Delivery Order
71.3% of positive obligations
Full and open
89.6%
of positive obligations
Reported parent IDV
97.2%
of positive obligations
Observed vehicles
ESPC Gen4, GENERAL SERVICES ADMINISTRATION, PUBLIC, and OASIS
Exact matches from reported parent PIIDs

Percentages use positive obligations as the denominator.

Which GSA engineering services awards may warrant recompete research?

Based on its reported potential-end date, the GSA engineering services award held by HONEYWELL BUILDING SOLUTIONS SES CORP may warrant recompete research.

Research leads, not confirmed recompetes. Dates may change through later modifications.

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Related market research

Complete market indexes:

Same NAICS at other agencies:

Nearby NAICS at this agency:

Markets sharing leading prime records:

Leading-prime vehicle memberships:

Company memberships do not establish award-channel use.

Reported obligations include contract actions from October 1, 2021 through September 10, 2026. Set-aside and business-size fields reflect award records, not a contractor's current eligibility.

Review data methodology