Federal Capture Intelligence

Top EPA engineering services contractors (NAICS 541330)

Contract actions: October 1, 2021 – September 10, 2026 Updated September 11, 2026 Environmental Protection Agency agency guide NAICS 541330 · Engineering Services
Latest 12 months
$60.0M
Net obligations · Down $7.4M vs. $67.4M preceding
Prime contractors
30
With positive obligations in the latest 12 months

Research the EPA 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, and observed contract vehicle usage.

Contract obligation trends for Engineering Services at the Environmental Protection Agency

Federal records show $341.8M in net obligations across 473 awards in Engineering Services at the Environmental Protection Agency from Oct 1, 2021 through Sep 10, 2026. This market accounts for 3.2% of $10.8B in agency-wide net prime contract obligations over the period shown. Latest 12-month net obligations decreased 11.0% from $67.4M to $60.0M. 12 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: $52.3M versus $58.1M through the same date in FY25 (−10.0%).
Net obligations · complete fiscal yearNet obligations · FY26 YTDContract actions
View fiscal-year data table
Fiscal yearNet obligationsContract actionsCoverage
FY2022$72.8M399Complete
FY2023$80.9M346Complete
FY2024$69.9M383Complete
FY2025$65.8M348Complete
FY2026$52.3M262YTD through Sep 10, 2026

Market at a glance

All reported prime contract awards
All-period net obligations
$341.8M
473 awards · 73 prime contractors
Latest 12-month movement
−11.0%
$60.0M vs. $67.4M
Leading eight prime share
68.4%
Share held by the eight leading prime contractors in the latest 12 months
View agency share, denominators, and set-aside reporting
Agency context
3.2% of $10.8B in agency-wide net obligations.
Set-aside share when reported
43.5% of 46 awards with reported set-aside status.
Set-aside reporting
20 set aside · 26 no set-aside · 427 not reported

What changed in the last 12 months?

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

Buyer demand

Reported obligations through OFC OF MISSION SUPT (OMS) (FUNDING) decreased
$12.7M→$2.1M−$10.6M
Latest-period activity spans 16 awards across 9 prime contractors.

Competitive shifts

NORESCO, LLC gained the most market share
4.8%→11.8%+7.0 percentage points
The contractor now ranks #2 by positive obligations, based on 3 reported actions.
WSP USA SOLUTIONS INC lost the most market share
17.2%→11.3%−5.9 percentage points
The contractor now ranks #3 by positive obligations, based on 11 reported actions.
SOUTHWEST RESEARCH INSTITUTE fell the most in the contractor rankings
#16→#25Down 9 places
The contractor accounts for 0.49% of positive obligations across 8 reported actions.
DYNOTEC-KZF JV, LLC was the largest newly observed contractor
$2.3MLatest 12-month obligations
First observed in this market on Apr 22, 2026, the contractor now ranks #10 by positive obligations across 3 reported actions.

Award activity

NORESCO, LLC received an unusually large obligation action
$7.1MApr 24, 2026 action
Reported under PIID 68HERC23F0048 by OFC FOR AIR RAD (OAR) (FUNDING). Award net obligations after the action: $30.4M.
View supporting award
View 2 additional material changes

Buyer demand

Reported obligations through OFC FOR AIR RAD (OAR) (FUNDING) increased
$4.8M→$9.3M+$4.4M
Latest-period activity spans 13 awards across 4 prime contractors.

Competitive shifts

TRC ENVIRONMENTAL CORP had no reported activity in the latest 12 months
$1.4M→$0No latest-period activity
It previously ranked #15 by positive obligations, based on 5 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.

47.3% of positive obligations were attributed to REGION 2 (FUNDING OFFICE). That represents $28.4M, down $7.6M from the preceding 12 months.

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

  1. REGION 2 (FUNDING OFFICE)47.3% · $28.4M · down $7.6M
  2. OFC OF FINANCE & ADMIN (OFA)(FUNDING)18.2% · $10.9M · up $10.9M
  3. OFC FOR AIR RAD (OAR) (FUNDING)15.4% · $9.3M · up $4.4M
  4. REGION 5 (FUNDING OFFICE)6.1% · $3.7M · up $399K
  5. REGION 3 (FUNDING OFFICE)3.8% · $2.3M · up $366K
  6. All other reported offices9.2% 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

    REGION 2 (FUNDING OFFICE)

    #1Rank unchanged

    Latest 12 months

    $28.4M

    47.3% of positive obligations

    Versus preceding 12 months

    −$7.6M

    10 active prime contractors · 65 awards

    View office comparison and evidence

    Reported obligations decreased 21.2% from $36.0M to $28.4M. The office’s share of positive obligations moved from 53.4% to 47.3%, a change of −6.1 percentage points.

    The latest period contains 89 actions across 65 awards and 1 newly active prime contractor. The preceding period contained 12 active prime contractors and 73 awards.

  2. Reported funding office

    OFC OF FINANCE & ADMIN (OFA)(FUNDING)

    #2New to the positive-obligation ranking

    Latest 12 months

    $10.9M

    18.2% of positive obligations

    Versus preceding 12 months

    +$10.9M

    15 active prime contractors · 37 awards

    View office comparison and evidence

    Reported obligations rose from $0 to $10.9M. The office’s share of positive obligations moved from 0% to 18.2%, a change of +18.2 percentage points.

    The latest period contains 59 actions across 37 awards and 15 newly active prime contractors. The preceding period contained 0 active prime contractors and 0 awards.

    Leading award-level changes

  3. Reported funding office

    OFC FOR AIR RAD (OAR) (FUNDING)

    #3Rank unchanged

    Latest 12 months

    $9.3M

    15.4% of positive obligations

    Versus preceding 12 months

    +$4.4M

    4 active prime contractors · 13 awards

    View office comparison and evidence

    Reported obligations increased 91.2% from $4.8M to $9.3M. The office’s share of positive obligations moved from 7.2% to 15.4%, a change of +8.2 percentage points.

    The latest period contains 36 actions across 13 awards and 2 newly active prime contractors. The preceding period contained 4 active prime contractors and 15 awards.

  4. Reported funding office

    REGION 5 (FUNDING OFFICE)

    #4Up 1 from #5

    Latest 12 months

    $3.7M

    6.1% of positive obligations

    Versus preceding 12 months

    +$399K

    1 active prime contractor · 1 award

    View office comparison and evidence

    Reported obligations increased 12.2% from $3.3M to $3.7M. The office’s share of positive obligations moved from 4.8% to 6.1%, a change of +1.3 percentage points.

    The latest period contains 7 actions across 1 award. The preceding period contained 2 active prime contractors and 2 awards.

  5. Reported funding office

    REGION 3 (FUNDING OFFICE)

    #5Up 1 from #6

    Latest 12 months

    $2.3M

    3.8% of positive obligations

    Versus preceding 12 months

    +$366K

    1 active prime contractor · 7 awards

    View office comparison and evidence

    Reported obligations increased 19.1% from $1.9M to $2.3M. The office’s share of positive obligations moved from 2.9% to 3.8%, a change of +1.0 percentage points.

    The latest period contains 13 actions across 7 awards. The preceding period contained 1 active prime contractor and 7 awards.

  6. Reported funding office

    OFC OF MISSION SUPT (OMS) (FUNDING)

    #6Down 4 from #2

    Latest 12 months

    $2.1M

    3.5% of positive obligations

    Versus preceding 12 months

    −$10.6M

    9 active prime contractors · 16 awards

    View office comparison and evidence

    Reported obligations decreased 83.7% from $12.7M to $2.1M. The office’s share of positive obligations moved from 18.9% to 3.5%, a change of −15.4 percentage points.

    The latest period contains 20 actions across 16 awards. The preceding period contained 14 active prime contractors and 40 awards.

    Leading award-level changes

  7. Reported funding office

    OFFICE FOR WATER (OW) (FUNDING)

    #7Down 3 from #4

    Latest 12 months

    $1.4M

    2.3% of positive obligations

    Versus preceding 12 months

    −$3.3M

    5 active prime contractors · 14 awards

    View office comparison and evidence

    Reported obligations decreased 70.5% from $4.7M to $1.4M. The office’s share of positive obligations moved from 7.0% to 2.3%, a change of −4.7 percentage points.

    The latest period contains 35 actions across 14 awards. The preceding period contained 7 active prime contractors and 27 awards.

  8. Reported funding office

    OFC LANDEMERG MGMT (OLEM)(FUNDING)

    #8Down 1 from #7

    Latest 12 months

    $832K

    1.4% of positive obligations

    Versus preceding 12 months

    −$800K

    1 active prime contractor · 1 award

    View office comparison and evidence

    Reported obligations decreased 49.0% from $1.6M to $832K. The office’s share of positive obligations moved from 2.4% to 1.4%, a change of −1.0 percentage points.

    The latest period contains 7 actions across 1 award. The preceding period contained 1 active prime contractor and 1 award.

  9. Reported funding office

    REGION 9 (FUNDING OFFICE)

    #9Rank unchanged

    Latest 12 months

    $458K

    0.76% of positive obligations

    Versus preceding 12 months

    −$313K

    2 active prime contractors · 7 awards

    View office comparison and evidence

    Reported obligations decreased 40.6% from $771K to $458K. The office’s share of positive obligations moved from 1.1% to 0.76%, a change of −0.4 percentage points.

    The latest period contains 18 actions across 7 awards. The preceding period contained 4 active prime contractors and 12 awards.

  10. Reported funding office

    REGION 7 (FUNDING OFFICE)

    #10New to the positive-obligation ranking

    Latest 12 months

    $388K

    0.65% of positive obligations

    Versus preceding 12 months

    +$388K

    1 active prime contractor · 1 award

    View office comparison and evidence

    Reported obligations rose from $0 to $388K. The office’s share of positive obligations moved from 0% to 0.65%, a change of +0.7 percentage points.

    The latest period contains 3 actions across 1 award and 1 newly active prime contractor. The preceding period contained 0 active prime contractors and 0 awards.

  11. Reported funding office

    OFC RESEARCH DEV (ORD) (FUNDING)

    #12Down 4 from #8

    Latest 12 months

    $136K

    0.23% of positive obligations

    Versus preceding 12 months

    −$1.4M

    3 active prime contractors · 3 awards

    View office comparison and evidence

    Reported obligations decreased 91.1% from $1.5M to $136K. The office’s share of positive obligations moved from 2.3% to 0.23%, a change of −2.0 percentage points.

    The latest period contains 3 actions across 3 awards and 2 newly active prime contractors. The preceding period contained 7 active prime contractors and 9 awards.

Contract types, competition, and procurement methods

From Sep 11, 2025 through Sep 10, 2026, 94 awards had positive obligations totaling $63.5M. Subject to Multiple Award Fair Opportunity was the leading reported procedure, accounting for 67.2% of positive obligations. Awards with a reported parent IDV accounted for 98.2%. Reported awards used contract vehicles such as UR AE MATOC, ESPC Gen4, and OASIS.

Leading award type
85.3%
Delivery Order
Leading reported procedure
67.2%
Subject to Multiple Award Fair Opportunity
Reported parent IDV
98.2%
of positive obligations had a reported parent IDV
Median reported offers
1
74 of 94 awards reported offers

Observed contract vehicles

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

  • UR AE MATOC

    $12.2M

    19.2% of positive obligations · 21 matched awards

  • ESPC Gen4

    $7.1M

    11.2% of positive obligations · 1 matched award

  • OASIS

    $4.0M

    6.3% of positive obligations · 2 matched awards

Buying method changes

Compared with Sep 11, 2024–Sep 10, 2025. Based on 94 current awards and 112 preceding awards with positive net obligations.

Reported full-and-open obligation share
67.5%
Down from 93.3% 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 10.1 percentage points higher, reported full-and-open obligation share is 31.4 percentage points higher, delivery-order obligation share is 12.8 percentage points higher, and median positive award obligations are 77.5% higher.

MeasureThis marketPeer medianDifference
Parent-IDV obligation share98.2%88.2%+10.1 pts
Reported full-and-open obligation share67.5%36.1%+31.4 pts
Delivery-order obligation share85.3%72.5%+12.8 pts
Median positive award obligations$366K$206K+77.5%
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)79$54.2M85.3%
BPA Call(A)12$8.2M12.9%
Definitive Contract(D)2$1.1M1.7%
Purchase Order(B)1$51K0.080%

Reported parent-award types

Reported valueAwardsPositive obligationsShare
IDC(B)77$53.3M84.0%
BPA(E)12$8.2M12.9%
FSS(C)2$870K1.4%
Not reported3$1.1M1.8%

Single- or multiple-award parent structure

Reported valueAwardsPositive obligationsShare
Multiple Award(M)71$51.5M81.1%
Single Award(S)20$10.9M17.1%
Not reported3$1.1M1.8%

Solicitation procedures

Reported valueAwardsPositive obligationsShare
Subject to Multiple Award Fair Opportunity(MAFO)62$42.7M67.2%
Mafo(SUBJECT TO MULTIPLE AWARD FAIR OPPORTUNITY)21$17.0M26.7%
Negotiated Proposal/Quote(NP)5$1.4M2.3%
Np(NEGOTIATED PROPOSAL/QUOTE)3$1.3M2.0%
Only One Source(SSS)3$1.1M1.8%

Extent competed

Reported valueAwardsPositive obligationsShare
Full and Open Competition(A)60$42.8M67.5%
A(FULL AND OPEN COMPETITION)16$12.3M19.4%
D(FULL AND OPEN COMPETITION AFTER EXCLUSION OF SOURCES)8$6.0M9.4%
Full and Open Competition After Exclusion of Sources(D)7$1.3M2.0%
Not Competed(C)3$1.1M1.8%

Fair-opportunity and limited-source reporting

Reported valueAwardsPositive obligationsShare
Fair Opportunity Given(FAIR)68$55.0M86.6%
Competitive Set Aside(CSA)8$2.5M3.9%
Follow-on Action Following Competitive Initial Action(FOO)4$1.8M2.8%
Only One Source - Other(ONE)3$409K0.64%
Not reported11$3.8M6.0%

Other-than-full-and-open reasons

Reported valueAwardsPositive obligationsShare
Only One Source-Other (FAR 6.302-1 Other)(ONE)3$1.1M1.8%
Not reported91$62.4M98.2%

Contract pricing types

Reported valueAwardsPositive obligationsShare
Cost Plus Fixed Fee(U)48$25.3M39.9%
Firm Fixed Price(J)18$14.8M23.4%
J(FIRM FIXED PRICE)12$7.8M12.2%
U(COST PLUS FIXED FEE)10$7.4M11.7%
Time and Materials(Y)4$5.1M8.0%
Y(TIME AND MATERIALS)2$3.1M4.8%

Product or Service Codes

Reported valueAwardsPositive obligationsShare
Architect and Engineering- General: Other(C219)55$30.8M48.5%
Special Studies/Analysis- Building Technology(B540)2$9.5M14.9%
Other Environmental Services(F999)6$6.0M9.5%
Architect and Engineering- Construction: Laboratories and Clinics(C1DB)6$5.8M9.2%
Maint/Repair/Rebuild of Equipment- Alarm, Signal, and Security Detection Systems(J063)5$5.3M8.3%
Inspection- Miscellaneous(H399)7$2.4M3.7%
Other reported values13$3.7M5.9%

Awarding subagencies

Reported valueAwardsPositive obligationsShare
Department of the Army(2100)53$30.7M48.3%
Environmental Protection Agency(6800)35$23.9M37.6%
Departmental Offices(1406)5$5.3M8.3%
Federal Acquisition Service(4732)1$3.7M5.8%

Awarding offices

Reported valueAwardsPositive obligationsShare
W071 Endist Kansas City(W912DQ)52$30.6M48.3%
Construction, Finance, Administrative & Ia Division(68HERF)15$16.4M25.8%
Ibc Acq Svcs Directorate (00004)(140D04)5$5.3M8.3%
GSA Fas Aas Region 5(47QFLA)1$3.7M5.8%
Land, Enforcement, and Air Division(68HERL)10$3.6M5.7%
Region 3 Contracting Office(68HE03)4$2.3M3.6%
Other reported values7$1.6M2.6%

Reported parent IDVs

Reported valueAwardsPositive obligationsShare
DEEE0008038(8900)1$7.1M11.2%
W912DQ24D3013(9700)9$5.7M8.9%
140D0426A0004(1406)5$5.3M8.3%
W912DQ24D3017(9700)7$5.2M8.3%
W912DQ21D3001(9700)4$3.7M5.9%
GS00Q14OADU116(4732)1$3.7M5.8%
W912DQ24D3012(9700)7$3.6M5.7%
W912DQ21D3004(9700)3$3.0M4.7%
Other reported values54$25.1M39.5%
Not reported3$1.1M1.8%

Exact vehicle-match evidence

Reported award data linked 25 awards to a specific catalog vehicle.

Offers, award size, and timing

Median reported offers
1 median
74 reported · 20 not reported
Positive award obligations
$366K median
$150K–$798K middle 50%
Reported performance period
1,583 days (~4.3 years) median
94 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
12 of 30prime contractors account for at least 80% of positive obligations in the last 12 months
Largest prime contractor
13.8%of positive obligations in the last 12 months
Leading four prime contractors
47.0%of positive obligations in the last 12 months
Leading eight prime contractors
68.4%of positive obligations in the last 12 months

Based on $60.5M 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

    $8.3M

    13.8%

    Dollar movement

    +$1.8M

    vs. prior 12 months

    Last 12mo awards

    18 awards

    30 actions

    Historical and award details for HDR-OBG A JOINT VENTURE
    Obligations: prior → latest
    $6.5M → $8.3M
    +27.9%
    Share: prior → latest
    9.6% → 13.8%
    +4.2 percentage points
    All-period obligations
    $25.2M
    7.3% of all-period positive obligations · 28 awards
    Recorded activity
    Since Oct 27, 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 reported1816
    Reported small business00
    All-period set-aside types

    None reported.

  2. #2

    Last 12mo obligations

    $7.1M

    11.8%

    Dollar movement

    +$3.9M

    vs. prior 12 months

    Last 12mo awards

    1 award

    3 actions

    Historical and award details for NORESCO, LLC
    Obligations: prior → latest
    $3.2M → $7.1M
    +119.3%
    Share: prior → latest
    4.8% → 11.8%
    +7.0 percentage points
    All-period obligations
    $31.4M
    9.2% of all-period positive obligations · 2 awards
    Recorded activity
    Since Nov 16, 2021
    through Apr 24, 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.

  3. #3

    Last 12mo obligations

    $6.8M

    11.3%

    Dollar movement

    −$4.9M

    vs. prior 12 months

    Last 12mo awards

    10 awards

    11 actions

    Historical and award details for WSP USA SOLUTIONS INC
    Obligations: prior → latest
    $11.7M → $6.8M
    −41.8%
    Share: prior → latest
    17.2% → 11.3%
    −5.9 percentage points
    All-period obligations
    $45.5M
    13.3% of all-period positive obligations · 21 awards
    Recorded activity
    Since Nov 12, 2021
    through Aug 31, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported109
    Reported small business00
    All-period set-aside types

    None reported.

  4. #4

    Last 12mo obligations

    $6.1M

    10.2%

    Dollar movement

    −$2.5M

    vs. prior 12 months

    Last 12mo awards

    15 awards

    17 actions

    Historical and award details for CDM FEDERAL PROGRAMS CORPORATION
    Obligations: prior → latest
    $8.7M → $6.1M
    −29.1%
    Share: prior → latest
    12.7% → 10.2%
    −2.6 percentage points
    All-period obligations
    $39.4M
    11.5% of all-period positive obligations · 47 awards
    Recorded activity
    Since Oct 22, 2021
    through Aug 13, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported1517
    Reported small business00
    All-period set-aside types

    None reported.

  5. #5

    Last 12mo obligations

    $4.4M

    7.2%

    Dollar movement

    −$3.1M

    vs. prior 12 months

    Last 12mo awards

    13 awards

    27 actions

    Historical and award details for M. C. DEAN, INC.
    Obligations: prior → latest
    $7.5M → $4.4M
    −41.9%
    Share: prior → latest
    11.0% → 7.2%
    −3.8 percentage points
    All-period obligations
    $29.0M
    8.5% of all-period positive obligations · 24 awards
    Recorded activity
    Since Oct 29, 2021
    through Sep 4, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported1310
    Reported small business00
    All-period set-aside types

    None reported.

  6. #6

    Last 12mo obligations

    $3.7M

    6.1%

    Dollar movement

    +$382K

    vs. prior 12 months

    Last 12mo awards

    1 award

    7 actions

    Historical and award details for GENERAL DYNAMICS INFORMATION TECHNOLOGY, INC.
    Obligations: prior → latest
    $3.3M → $3.7M
    +11.6%
    Share: prior → latest
    4.8% → 6.1%
    +1.3 percentage points
    All-period obligations
    $21.3M
    6.2% of all-period positive obligations · 1 award
    Recorded activity
    Since Mar 16, 2022
    through Jun 4, 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.

  7. #7

    Last 12mo obligations

    $2.6M

    4.2%

    Dollar movement

    −$293K

    vs. prior 12 months

    Last 12mo awards

    7 awards

    11 actions

    Historical and award details for ARCADIS U.S., INC.
    Obligations: prior → latest
    $2.8M → $2.6M
    −10.3%
    Share: prior → latest
    4.2% → 4.2%
    +0.1 percentage points
    All-period obligations
    $27.6M
    8.1% of all-period positive obligations · 19 awards
    Recorded activity
    Since Oct 8, 2021
    through Aug 27, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported77
    Reported small business00
    All-period set-aside types

    None reported.

  8. #8

    Last 12mo obligations

    $2.4M

    3.9%

    Dollar movement

    +$521K

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for ENERGY SYSTEMS GROUP, LLC
    Obligations: prior → latest
    $1.8M → $2.4M
    +28.3%
    Share: prior → latest
    2.7% → 3.9%
    +1.2 percentage points
    All-period obligations
    $10.5M
    3.1% of all-period positive obligations · 1 award
    Recorded activity
    Since Jul 12, 2022
    through Jun 24, 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

    $2.4M

    3.9%

    Dollar movement

    +$261K

    vs. prior 12 months

    Last 12mo awards

    9 awards

    31 actions

    Historical and award details for AMENTUM TECHNOLOGY, INC.
    Obligations: prior → latest
    $2.1M → $2.4M
    +12.5%
    Share: prior → latest
    3.1% → 3.9%
    +0.8 percentage points
    All-period obligations
    $5.1M
    1.5% of all-period positive obligations · 13 awards
    Recorded activity
    Since Oct 18, 2021
    through Sep 9, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported98
    Reported small business00
    All-period set-aside types

    None reported.

  10. #10

    Last 12mo obligations

    $2.3M

    3.8%

    Dollar movement

    +$2.3M

    vs. prior 12 months

    Last 12mo awards

    2 awards

    3 actions

    Historical and award details for DYNOTEC-KZF JV, LLC
    Obligations: prior → latest
    $0 → $2.3M
    Not comparable
    Share: prior → latest
    0% → 3.8%
    +3.8 percentage points
    All-period obligations
    $2.3M
    0.68% of all-period positive obligations · 2 awards
    Recorded activity
    Since Apr 22, 2026
    through Aug 12, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported20
    Reported small business20
    All-period set-aside types

    None reported.

  11. #11

    Last 12mo obligations

    $2.3M

    3.8%

    Dollar movement

    +$366K

    vs. prior 12 months

    Last 12mo awards

    7 awards

    13 actions

    Historical and award details for HANA ENGINEERS & CONSULTANTS LLC
    Obligations: prior → latest
    $1.9M → $2.3M
    +19.1%
    Share: prior → latest
    2.8% → 3.8%
    +1.0 percentage points
    All-period obligations
    $4.2M
    1.2% of all-period positive obligations · 10 awards
    Recorded activity
    Since Aug 23, 2024
    through Jul 15, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported77
    Reported small business77
    All-period set-aside types

    None reported.

  12. #12

    Last 12mo obligations

    $1.8M

    3.0%

    Dollar movement

    −$1.6M

    vs. prior 12 months

    Last 12mo awards

    6 awards

    9 actions

    Historical and award details for JACOBS GOVERNMENT SERVICES COMPANY
    Obligations: prior → latest
    $3.4M → $1.8M
    −47.0%
    Share: prior → latest
    5.0% → 3.0%
    −2.0 percentage points
    All-period obligations
    $8.1M
    2.4% of all-period positive obligations · 8 awards
    Recorded activity
    Since Dec 22, 2023
    through Jun 11, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported65
    Reported small business00
    All-period set-aside types

    None reported.

  13. #13

    Last 12mo obligations

    $1.7M

    2.8%

    Dollar movement

    +$829K

    vs. prior 12 months

    Last 12mo awards

    2 awards

    4 actions

    Historical and award details for RICHARD MCELHINEY ARCHITECT, PLLC
    Obligations: prior → latest
    $849K → $1.7M
    +97.6%
    Share: prior → latest
    1.3% → 2.8%
    +1.5 percentage points
    All-period obligations
    $7.0M
    2.0% of all-period positive obligations · 7 awards
    Recorded activity
    Since Jan 31, 2022
    through Sep 8, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported24
    Reported small business24
    All-period set-aside types

    None reported.

  14. #14

    Last 12mo obligations

    $1.5M

    2.5%

    Dollar movement

    +$1.5M

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for KAL ARCHITECTS, INC.
    Obligations: prior → latest
    $0 → $1.5M
    Not comparable
    Share: prior → latest
    0% → 2.5%
    +2.5 percentage points
    All-period obligations
    $1.5M
    0.44% of all-period positive obligations · 1 award
    Recorded activity
    Since Aug 11, 2026
    through Aug 11, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported10
    Reported small business10
    All-period set-aside types

    None reported.

  15. #15

    Last 12mo obligations

    $1.4M

    2.3%

    Dollar movement

    −$285K

    vs. prior 12 months

    Last 12mo awards

    3 awards

    4 actions

    Historical and award details for TETRA TECH, INC.
    Obligations: prior → latest
    $1.7M → $1.4M
    −16.8%
    Share: prior → latest
    2.5% → 2.3%
    −0.2 percentage points
    All-period obligations
    $5.5M
    1.6% of all-period positive obligations · 5 awards
    Recorded activity
    Since Jan 30, 2023
    through May 14, 2026

    Award reporting

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

    None reported.

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

+$7.1M

NORESCO, LLC

OFC FOR AIR RAD (OAR) (FUNDING)

ENERGY SAVINGS PERFORMANCE CONTRACT (ESPC) TASK ORDER FOR ANN ARBOR, MI P00008 - INCREMENTAL FUNDING FOR YEAR 2 PAYMENT

Why it stands out

The contractor climbed 5 positions in this market.

It now ranks #2 by positive obligations over the latest 12 months.

Award net obligations
$30.4M
Share of 12-month positive obligations
11.8%
Supporting data
Prime contractor
#2 · 11.8% share
up 5 ranks · +7.0 percentage points · $3.9M net increase; action exceeded it by $3.2M
Funding office
#3 · 15.4% attributed share
+8.2 percentage points · $4.4M net increase; action exceeded it by $2.7M
Related:Largest share gainUnusually large action
PIID 68HERC23F0048 · Mod P00008
Modification

This action

+$3.2M

GENERAL DYNAMICS INFORMATION TECHNOLOGY, INC.

REGION 5 (FUNDING OFFICE)

SCIENTIFIC AND TECHNICAL SUPPORT FOR THE GREAT LAKES NATIONAL PROGRAM OFFICE

Why it stands out

The award grew alongside stronger office-attributed spending.

The modification added $3.2M while office-attributed obligations rose $399K overall.

Award net obligations
$21.3M
Share of 12-month positive obligations
5.2%
Supporting data
Funding office
#4 · 6.1% attributed share
up 1 rank · +1.3 percentage points · $399K net increase; action exceeded it by $2.8M
PIID 47QFLA22F0075 · Mod P00021
Base award

This action

+$2.3M

DYNOTEC-KZF JV, LLC

OFC OF FINANCE & ADMIN (OFA)(FUNDING)

ADA OK OASES LAB UPGRADE AE DESIGN SERVICES

Why it stands out

No activity for this contractor was reported in this market during the preceding 12 months.

The base action placed the contractor #10 in this market by positive obligations over the latest 12 months.

Award net obligations
$2.3M
Share of 12-month positive obligations
3.8%
Supporting data
Prime contractor
#10 · 3.8% share
Newly active in this market; no actions were reported in the preceding 12 months
Related:Largest newly observed contractor
PIID 68HERF26F0147
Modification

This action

+$2.6M

HDR-OBG A JOINT VENTURE

REGION 2 (FUNDING OFFICE)

GCL OU3 PDI/RD

Why it stands out

This award grew while spending attributed to its office declined.

The modification added $2.6M while office-attributed obligations fell $7.6M overall.

Award net obligations
$3.1M
Share of 12-month positive obligations
4.2%
Supporting data
Prime contractor
#1 · 13.8% share
up 3 ranks · +4.2 percentage points · $1.8M net increase; action exceeded it by $734K
Funding office
#1 · 47.3% attributed share
$7.6M net decline despite this positive action
PIID W912DQ25F3057 · Mod P00001
Base award

This action

+$1.5M

KAL ARCHITECTS, INC.

OFC OF FINANCE & ADMIN (OFA)(FUNDING)

A/E CONSTRUCTION FOLLOW ON SERVICES FOR THE U.S. EPA ROBERT S. KERR ENVIRONMENTAL RESEARCH CENTER (RSKERC) - REGION 6 LABORATORY CONSTRUCTION/RENOVATIONS PROJECT AT ADA, OKLAHOMA

Why it stands out

No activity for this contractor was reported in this market during the preceding 12 months.

The base action placed the contractor #14 in this market by positive obligations over the latest 12 months.

Award net obligations
$1.5M
Share of 12-month positive obligations
2.5%
Supporting data
Prime contractor
#14 · 2.5% share
Newly active in this market; no actions were reported in the preceding 12 months
PIID 68HERF26F0165
Modification

This action

+$2.4M

ENERGY SYSTEMS GROUP, LLC

OFC OF FINANCE & ADMIN (OFA)(FUNDING)

B540-ENERGY SAVINGS PERFORMANCE CONTRACT TASK ORDER FOR RESEARCH TRIANGLE PARK CAMPUS, RTP, NORTH CAROLINA

Why it stands out

The contractor climbed 3 positions in this market.

It now ranks #8 by positive obligations over the latest 12 months.

Award net obligations
$19.0M
Share of 12-month positive obligations
3.9%
Supporting data
Funding office
#2 · 18.2% attributed share
+18.2 percentage points · $10.9M net increase; action accounted for 21.6%
PIID 68HE0C18F0857 · Mod P00014
View recent award activity by date (10)
  1. AMENTUM TECHNOLOGY, INC.Modification · PIID 68HERC24F0503
    Action+$159K
    Award net obligations$1.0M
  2. HDR-OBG A JOINT VENTUREModification · PIID W912DQ25F3054
    Action+$1.0M
    Award net obligations$1.6M
  3. RICHARD MCELHINEY ARCHITECT, PLLCModification · PIID 68HERF26F0051
    Action+$257K
    Award net obligations$1.7M
  4. M. C. DEAN, INC.Base award · PIID 140D0426F0929
    Action+$746K
    Award net obligations$746K
  5. HDR-OBG A JOINT VENTUREModification · PIID W912DQ24F3025
    Action+$536K
    Award net obligations$1.3M
  6. CORNERSTONE COMMISSIONING, LLCModification · PIID 68HERF26F0133
    Action+$17K
    Award net obligations$66K
  7. HDR-OBG A JOINT VENTUREModification · PIID W912DQ25F3026
    Action+$116K
    Award net obligations$1.8M
  8. WSP USA SOLUTIONS INCBase award · PIID W912DQ26FA087
    Action+$1.0M
    Award net obligations$1.0M
  9. ARCADIS U.S., INC.Modification · PIID W912DQ21F3050
    Action+$21K
    Award net obligations$1.8M
  10. CHINOOK SYSTEMS INCBase award · PIID 68HERF26F0179
    Action+$68K
    Award net obligations$68K

EPA engineering services market FAQs

Answers based on reported federal contract data.

Who are the top EPA engineering services contractors?

In the 12 months through September 10, 2026, HDR-OBG A JOINT VENTURE, NORESCO, LLC, and WSP USA SOLUTIONS INC were the leading EPA engineering services prime contractors by positive obligations.

  1. #1

    HDR-OBG A JOINT VENTURE

    $8,348,918 in positive obligations

  2. #2

    NORESCO, LLC

    $7,114,910 in positive obligations

  3. #3

    WSP USA SOLUTIONS INC

    $6,840,000 in positive obligations

Rankings use reported USAspending award data.

Did EPA contract obligations decrease in the engineering services market?

Yes. Measured by net prime contract obligations, reported EPA activity in the engineering services market decreased 11% from $67,399,734 in the preceding 12 months to $59,992,477 in the 12 months through September 10, 2026.

Latest 12 months
$59,992,477
Net prime contract obligations
Preceding 12 months
$67,399,734
Net prime contract obligations
Change
−11%
Between matched 12-month periods

Reported contract actions, not outlays or a forecast.

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

Recent EPA contract award activity reported in the engineering services market included actions for NORESCO, LLC, GENERAL DYNAMICS INFORMATION TECHNOLOGY, INC., and DYNOTEC-KZF JV, LLC 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 EPA contracts under NAICS 541330?

From September 11, 2025 through September 10, 2026, EPA reported 94 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
94
Leading reported procedure
Subject to Multiple Award Fair Opportunity
67.2% of positive obligations
Leading award type
Delivery Order
85.3% of positive obligations
Full and open
67.5%
of positive obligations
Reported parent IDV
98.2%
of positive obligations
Observed vehicles
UR AE MATOC, ESPC Gen4, and OASIS
Exact matches from reported parent PIIDs

Percentages use positive obligations as the denominator.

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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