Federal Capture Intelligence

Top Treasury environmental consulting contractors (NAICS 541620)

Contract actions: October 1, 2021 – September 10, 2026 Updated September 11, 2026 Department of the Treasury agency guide NAICS 541620 · Environmental Consulting Services
Latest 12 months
$2.6M
Net obligations · Down $1.2M vs. $3.8M preceding
Prime contractors
9
With positive obligations in the latest 12 months

Research the Treasury federal contracting market for environmental consulting under NAICS 541620. Compare top federal contractors and market share, reported contract obligations and spending trends, funding-office attribution, recent award activity, and contract types, competition, and procurement methods.

Contract obligation trends for environmental consulting at the Department of the Treasury

Federal records show $22.1M in net obligations across 108 awards in environmental consulting at the Department of the Treasury from Oct 1, 2021 through Sep 10, 2026. This market accounts for 0.051% of $43.1B in agency-wide net prime contract obligations over the period shown. Latest 12-month net obligations decreased 31.2% from $3.8M to $2.6M. 3 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: $3.6M versus $3.3M through the same date in FY25 (+9.7%).
Net obligations · complete fiscal yearNet obligations · FY26 YTDContract actions
View fiscal-year data table
Fiscal yearNet obligationsContract actionsCoverage
FY2022$4.6M45Complete
FY2023$6.7M68Complete
FY2024$5.1M49Complete
FY2025$2.3M100Complete
FY2026$3.6M70YTD through Sep 10, 2026

Market at a glance

All reported prime contract awards
All-period net obligations
$22.1M
108 awards · 35 prime contractors
Latest 12-month movement
−31.2%
$2.6M vs. $3.8M
Leading eight prime share
99.3%
Share held by the eight leading prime contractors in the latest 12 months
View agency share, denominators, and set-aside reporting
Agency context
0.051% of $43.1B in agency-wide net obligations.
Set-aside share when reported
16.3% of 86 awards with reported set-aside status.
Set-aside reporting
14 set aside · 72 no set-aside · 22 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

THE BRATTLE GROUP INC had no reported activity in the latest 12 months
$2.0M→$0No latest-period activity
It previously ranked #1 by positive obligations, based on 2 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.

48.2% of positive obligations were attributed to OFFICE OF ENV HEALTH SAFETY. That represents $1.4M, down $633K from the preceding 12 months.

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

  1. OFFICE OF ENV HEALTH SAFETY48.2% · $1.4M · down $633K
  2. COUNSEL31.0% · $870K · down $608K
  3. OFFICE OF OPERATIONS SUPPORT (WCF)10.2% · $286K · up $162K
  4. OFFICE OF MANAGEMENT / CFO8.5% · $238K · down $218K
  5. FISCAL SERVICE1.5% · $43K · up $46K
  6. All other reported offices0.70% 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

    OFFICE OF ENV HEALTH SAFETY

    #1Rank unchanged

    Latest 12 months

    $1.4M

    48.2% of positive obligations

    Versus preceding 12 months

    −$633K

    4 active prime contractors · 10 awards

    View office comparison and evidence

    Reported obligations decreased 31.9% from $2.0M to $1.4M. The office’s share of positive obligations moved from 40.9% to 48.2%, a change of +7.3 percentage points.

    The latest period contains 18 actions across 10 awards and 1 newly active prime contractor. The preceding period contained 4 active prime contractors and 7 awards.

  2. Reported funding office

    COUNSEL

    #2Rank unchanged

    Latest 12 months

    $870K

    31.0% of positive obligations

    Versus preceding 12 months

    −$608K

    13 active prime contractors · 36 awards

    View office comparison and evidence

    Reported obligations decreased 41.1% from $1.5M to $870K. The office’s share of positive obligations moved from 30.4% to 31.0%, a change of +0.6 percentage points.

    The latest period contains 43 actions across 36 awards and 1 newly active prime contractor. The preceding period contained 14 active prime contractors and 50 awards.

  3. Reported funding office

    OFFICE OF OPERATIONS SUPPORT (WCF)

    #3Up 3 from #6

    Latest 12 months

    $286K

    10.2% of positive obligations

    Versus preceding 12 months

    +$162K

    1 active prime contractor · 2 awards

    View office comparison and evidence

    Reported obligations increased 131.0% from $124K to $286K. The office’s share of positive obligations moved from 2.5% to 10.2%, a change of +7.6 percentage points.

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

  4. Reported funding office

    OFFICE OF MANAGEMENT / CFO

    #4Rank unchanged

    Latest 12 months

    $238K

    8.5% of positive obligations

    Versus preceding 12 months

    −$218K

    1 active prime contractor · 1 award

    View office comparison and evidence

    Reported obligations decreased 47.8% from $456K to $238K. The office’s share of positive obligations moved from 9.4% to 8.5%, a change of −0.9 percentage points.

    The latest period contains 4 actions across 1 award. The preceding period contained 1 active prime contractor and 1 award.

  5. Reported funding office

    FISCAL SERVICE

    #5New to the positive-obligation ranking

    Latest 12 months

    $43K

    1.5% of positive obligations

    Versus preceding 12 months

    +$46K

    1 active prime contractor · 1 award

    View office comparison and evidence

    Reported obligations moved from $3K in net deobligations to $43K in net obligations. The office’s share of positive obligations moved from 0% to 1.5%, a change of +1.5 percentage points.

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

  6. Reported funding office

    US MINT PHILADELPHIA

    #6New to the positive-obligation ranking

    Latest 12 months

    $20K

    0.70% of positive obligations

    Versus preceding 12 months

    +$20K

    1 active prime contractor · 1 award

    View office comparison and evidence

    Reported obligations rose from $0 to $20K. The office’s share of positive obligations moved from 0% to 0.70%, 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.

  7. Reported funding office

    US MINT HEADQUARTERS

    No positive-obligation rank

    Latest 12 months

    $0

    0% of positive obligations

    Versus preceding 12 months

    −$125K

    0 active prime contractors · 0 awards

    View office comparison and evidence

    Reported obligations decreased 100.0% from $125K to $0. The office’s share of positive obligations moved from 2.6% to 0%, a change of −2.6 percentage points.

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

  8. Reported funding office

    TREASURY OPERATIONS

    No positive-obligation rank

    Latest 12 months

    $0

    0% of positive obligations

    Versus preceding 12 months

    +$1.1M

    0 active prime contractors · 0 awards

    View office comparison and evidence

    Reported obligations moved from $1.1M in net deobligations to $0 in net obligations. The office’s share of positive obligations moved from 0% to 0%, a change of 0.0 percentage points.

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

    Leading award-level changes

  9. Reported funding office

    COMPLIANCE MONITORING AND EVAL

    No positive-obligation rank

    Latest 12 months

    −$190K

    0% of positive obligations

    Versus preceding 12 months

    −$879K

    2 active prime contractors · 3 awards

    View office comparison and evidence

    Reported obligations moved from $688K in net obligations to $190K in net deobligations. The office’s share of positive obligations moved from 14.2% to 0%, a change of −14.2 percentage points.

    The latest period contains 5 actions across 3 awards. The preceding period contained 2 active prime contractors and 3 awards.

    Leading award-level changes

Contract types, competition, and procurement methods

From Sep 11, 2025 through Sep 10, 2026, 18 awards had positive obligations totaling $4.5M. Subject to Multiple Award Fair Opportunity was the leading reported procedure, accounting for 31.1% of positive obligations. Awards with a reported parent IDV accounted for 38.6%.

Leading award type
33.8%
Purchase Order
Leading reported procedure
31.1%
Subject to Multiple Award Fair Opportunity
Reported parent IDV
38.6%
of positive obligations had a reported parent IDV
Median reported offers
1
16 of 18 awards reported offers

Buying method changes

Compared with Sep 11, 2024–Sep 10, 2025. Based on 18 current awards and 17 preceding awards with positive net obligations.

Leading reported procedure
Subject to Multiple Award Fair Opportunity
Previously Only One Source · 56.6% preceding vs 31.1% current
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 541620 peer median, parent-IDV obligation share is 45.3 percentage points lower, reported full-and-open obligation share is 15.3 percentage points lower, delivery-order obligation share is 52.2 percentage points lower, and median positive award obligations are 91.2% higher.

MeasureThis marketPeer medianDifference
Parent-IDV obligation share38.6%83.8%-45.3 pts
Reported full-and-open obligation share31.1%46.5%-15.3 pts
Delivery-order obligation share7.7%60.0%-52.2 pts
Median positive award obligations$238K$124K+91.2%
Peer cohort and comparison limits

The peer median gives each of the 12 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
Purchase Order(B)9$1.5M33.8%
BPA Call(A)5$1.4M30.8%
Definitive Contract(D)1$1.2M27.6%
Delivery Order(C)3$346K7.7%

Reported parent-award types

Reported valueAwardsPositive obligationsShare
BPA(E)5$1.4M30.8%
FSS(C)3$346K7.7%
Not reported10$2.8M61.4%

Single- or multiple-award parent structure

Reported valueAwardsPositive obligationsShare
Single Award(S)5$1.4M30.8%
Multiple Award(M)3$346K7.7%
Not reported10$2.8M61.4%

Solicitation procedures

Reported valueAwardsPositive obligationsShare
Subject to Multiple Award Fair Opportunity(MAFO)4$1.4M31.1%
Sss(ONLY ONE SOURCE)1$1.2M27.6%
Simplified Acquisition(SP1)9$1.0M23.0%
Sp1(SIMPLIFIED ACQUISITION)3$578K12.9%
Mafo(SUBJECT TO MULTIPLE AWARD FAIR OPPORTUNITY)1$238K5.3%

Extent competed

Reported valueAwardsPositive obligationsShare
Full and Open Competition(A)4$1.4M31.1%
B(NOT AVAILABLE FOR COMPETITION)1$1.2M27.6%
Not Competed Under SAP(G)8$1.0M22.6%
G(NOT COMPETED UNDER SAP)3$578K12.9%
A(FULL AND OPEN COMPETITION)1$238K5.3%
Competed Under SAP(F)1$20K0.44%

Fair-opportunity and limited-source reporting

Reported valueAwardsPositive obligationsShare
Fair Opportunity Given(FAIR)2$1.3M28.7%
Competitive Set Aside(CSA)3$346K7.7%
Not reported13$2.8M63.6%

Other-than-full-and-open reasons

Reported valueAwardsPositive obligationsShare
SAP Non-Competition (FAR 13)(SP2)8$1.5M33.4%
Authorized by Statute (FAR 6.302-5(A)(2)(I))(OTH)4$1.3M29.8%
Not reported6$1.7M36.9%

Contract pricing types

Reported valueAwardsPositive obligationsShare
Firm Fixed Price(J)7$1.4M31.9%
J(FIRM FIXED PRICE)2$1.3M29.4%
Labor Hours(Z)6$997K22.2%
Z(LABOR HOURS)3$737K16.4%

Product or Service Codes

Reported valueAwardsPositive obligationsShare
Support- Professional: Expert Witness(R424)8$1.5M33.4%
Environmental Systems Protection- Environmental Remediation(F108)5$1.4M30.8%
Other Environmental Services(F999)1$1.2M27.6%
Support- Professional: Industrial Hygienics(R428)1$238K5.3%
Environmental Systems Protection- Environmental Consulting and Legal Support(F115)1$66K1.5%
Special Studies/Analysis- Air Quality(B502)1$43K0.95%
Other reported values1$20K0.44%

Awarding subagencies

Reported valueAwardsPositive obligationsShare
Bureau of Engraving and Printing(2041)7$2.7M59.9%
Internal Revenue Service(2050)8$1.5M33.4%
Office of the Comptroller of the Currency(2046)1$238K5.3%
Bureau of the Fiscal Service(2036)1$43K0.95%
United States Mint(2044)1$20K0.44%

Awarding offices

Reported valueAwardsPositive obligationsShare
Office of the Chief Procurement Officer(2031ZA)7$2.7M59.9%
Special Operations(2023H2)8$1.5M33.4%
Comptroller of Currency Acqs(2031JW)1$238K5.3%
Fiscal Service(2033H6)1$43K0.95%
Us Mint Philadelphia(2036X5)1$20K0.44%

Reported parent IDVs

Reported valueAwardsPositive obligationsShare
2031ZA22A00054(2041)1$832K18.6%
2031ZA22A00059(2041)1$455K10.2%
47QRAA23D005G(4732)1$238K5.3%
2031ZA24A00005(2041)3$95K2.1%
GS10F0120T(4730)1$66K1.5%
GS10F0045V(4730)1$43K0.95%
Not reported10$2.8M61.4%

Offers, award size, and timing

Median reported offers
1 median
16 reported · 2 not reported
Positive award obligations
$238K median
$43K–$249K middle 50%
Reported performance period
1,094 days (~3.0 years) median
18 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
3 of 9prime contractors account for at least 80% of positive obligations in the last 12 months
Largest prime contractor
41.3%of positive obligations in the last 12 months
Leading four prime contractors
87.4%of positive obligations in the last 12 months
Leading eight prime contractors
99.3%of positive obligations in the last 12 months

Based on $3.0M 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

    $1.2M

    41.3%

    Dollar movement

    +$3K

    vs. prior 12 months

    Last 12mo awards

    1 award

    8 actions

    Historical and award details for KONIAG OPERATIONS SERVICES LLC
    Obligations: prior → latest
    $1.2M → $1.2M
    +0.2%
    Share: prior → latest
    20.8% → 41.3%
    +20.5 percentage points
    All-period obligations
    $2.5M
    10.7% of all-period positive obligations · 1 award
    Recorded activity
    Since Nov 8, 2024
    through Sep 8, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside11
    Reported no set-aside00
    Not reported00
    Reported small business11
    All-period set-aside types
    • 1 · 8(a) sole source
  2. #2

    Last 12mo obligations

    $985K

    32.8%

    Dollar movement

    +$985K

    vs. prior 12 months

    Last 12mo awards

    4 awards

    7 actions

    Historical and award details for G-A-I CONSULTANTS INC
    Obligations: prior → latest
    $0 → $985K
    Not comparable
    Share: prior → latest
    0% → 32.8%
    +32.8 percentage points
    All-period obligations
    $985K
    4.3% of all-period positive obligations · 4 awards
    Recorded activity
    Since Dec 16, 2025
    through Aug 18, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside40
    Not reported00
    Reported small business10
    All-period set-aside types

    None reported.

  3. #3

    Last 12mo obligations

    $240K

    8.0%

    Dollar movement

    −$595K

    vs. prior 12 months

    Last 12mo awards

    7 awards

    7 actions

    Historical and award details for CLEAN HARBORS ENVIRONMENTAL SERVICES INC
    Obligations: prior → latest
    $836K → $240K
    −71.2%
    Share: prior → latest
    14.1% → 8.0%
    −6.0 percentage points
    All-period obligations
    $7.1M
    30.8% of all-period positive obligations · 14 awards
    Recorded activity
    Since Dec 21, 2021
    through Jun 14, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported76
    Reported small business00
    All-period set-aside types

    None reported.

  4. #4

    Last 12mo obligations

    $159K

    5.3%

    Dollar movement

    −$665K

    vs. prior 12 months

    Last 12mo awards

    3 awards

    6 actions

    Historical and award details for CENPEC, LLC
    Obligations: prior → latest
    $824K → $159K
    −80.7%
    Share: prior → latest
    13.9% → 5.3%
    −8.6 percentage points
    All-period obligations
    $983K
    4.3% of all-period positive obligations · 3 awards
    Recorded activity
    Since Sep 20, 2024
    through Sep 3, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside11
    Reported no set-aside00
    Not reported22
    Reported small business33
    All-period set-aside types
    • 1 · Total small business
  5. #5

    Last 12mo obligations

    $154K

    5.1%

    Dollar movement

    +$583K

    vs. prior 12 months

    Last 12mo awards

    5 awards

    5 actions

    Historical and award details for LAMPL/HERBERT CONSULTANTS, INC.
    Obligations: prior → latest
    −$429K → $154K
    Not comparable
    Share: prior → latest
    0% → 5.1%
    +5.1 percentage points
    All-period obligations
    $605K
    2.6% of all-period positive obligations · 6 awards
    Recorded activity
    Since Sep 13, 2022
    through Aug 13, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside55
    Not reported00
    Reported small business44
    All-period set-aside types

    None reported.

  6. #6

    Last 12mo obligations

    $95K

    3.2%

    Dollar movement

    +$82K

    vs. prior 12 months

    Last 12mo awards

    3 awards

    4 actions

    Historical and award details for DAYTON GROUP INC
    Obligations: prior → latest
    $14K → $95K
    +598.1%
    Share: prior → latest
    0.23% → 3.2%
    +2.9 percentage points
    All-period obligations
    $177K
    0.77% of all-period positive obligations · 7 awards
    Recorded activity
    Since Jan 31, 2022
    through Aug 17, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside32
    Reported no set-aside01
    Not reported00
    Reported small business33
    All-period set-aside types
    • 5 · 8(a) sole source
  7. #7

    Last 12mo obligations

    $66K

    2.2%

    Dollar movement

    +$66K

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for MABBETT & ASSOCIATES, INC.
    Obligations: prior → latest
    $0 → $66K
    Not comparable
    Share: prior → latest
    0% → 2.2%
    +2.2 percentage points
    All-period obligations
    $66K
    0.28% of all-period positive obligations · 1 award
    Recorded activity
    Since Jul 20, 2026
    through Jul 20, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside10
    Reported no set-aside00
    Not reported00
    Reported small business10
    All-period set-aside types
    • 1 · Total small business
  8. #8

    Last 12mo obligations

    $43K

    1.4%

    Dollar movement

    +$46K

    vs. prior 12 months

    Last 12mo awards

    1 award

    2 actions

    Historical and award details for ENVIRONMENTAL CONSULTING GROUP, INC.
    Obligations: prior → latest
    −$3K → $43K
    Not comparable
    Share: prior → latest
    0% → 1.4%
    +1.4 percentage points
    All-period obligations
    $199K
    0.86% of all-period positive obligations · 2 awards
    Recorded activity
    Since Nov 3, 2021
    through May 7, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside10
    Reported no set-aside00
    Not reported01
    Reported small business11
    All-period set-aside types
    • 1 · Total small business
  9. #9

    Last 12mo obligations

    $20K

    0.66%

    Dollar movement

    +$20K

    vs. prior 12 months

    Last 12mo awards

    1 award

    3 actions

    Historical and award details for COMPLIANCE MANAGEMENT INTERNATIONAL, INC.
    Obligations: prior → latest
    $0 → $20K
    Not comparable
    Share: prior → latest
    0% → 0.66%
    +0.7 percentage points
    All-period obligations
    $20K
    0.090% of all-period positive obligations · 1 award
    Recorded activity
    Since Sep 17, 2025
    through Jan 20, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside10
    Not reported00
    Reported small business10
    All-period set-aside types

    None reported.

  10. #10

    Last 12mo obligations

    −$112K

    0%

    Dollar movement

    −$431K

    vs. prior 12 months

    Last 12mo awards

    1 award

    3 actions

    Historical and award details for CENTAUR CONSULTING GROUP LLC
    Obligations: prior → latest
    $320K → −$112K
    Not comparable
    Share: prior → latest
    5.4% → 0%
    −5.4 percentage points
    All-period obligations
    $208K
    0.90% of all-period positive obligations · 1 award
    Recorded activity
    Since Apr 29, 2025
    through Jul 10, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported11
    Reported small business11
    All-period set-aside types

    None reported.

  11. #11

    Last 12mo obligations

    −$80K

    0%

    Dollar movement

    +$257K

    vs. prior 12 months

    Last 12mo awards

    5 awards

    6 actions

    Historical and award details for P. E. LAMOREAUX & ASSOCIATES, INC.
    Obligations: prior → latest
    −$338K → −$80K
    Not comparable
    Share: prior → latest
    0% → 0%
    0.0 percentage points
    All-period obligations
    $596K
    2.6% of all-period positive obligations · 9 awards
    Recorded activity
    Since Sep 1, 2022
    through Sep 2, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside59
    Not reported00
    Reported small business59
    All-period set-aside types

    None reported.

  12. #12

    Last 12mo obligations

    −$78K

    0%

    Dollar movement

    −$78K

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for CHENIER ENVIRONMENTAL CONSULTING, LLC
    Obligations: prior → latest
    $0 → −$78K
    Not comparable
    Share: prior → latest
    0% → 0%
    0.0 percentage points
    All-period obligations
    $170K
    0.73% of all-period positive obligations · 1 award
    Recorded activity
    Since Mar 3, 2023
    through Apr 6, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside11
    Not reported00
    Reported small business11
    All-period set-aside types

    None reported.

  13. #13

    Last 12mo obligations

    −$63K

    0%

    Dollar movement

    −$63K

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for SHAWN SMALLWOOD
    Obligations: prior → latest
    $0 → −$63K
    Not comparable
    Share: prior → latest
    0% → 0%
    0.0 percentage points
    All-period obligations
    $60K
    0.26% of all-period positive obligations · 2 awards
    Recorded activity
    Since Apr 27, 2023
    through Sep 17, 2025

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside11
    Not reported00
    Reported small business11
    All-period set-aside types

    None reported.

  14. #14

    Last 12mo obligations

    −$39K

    0%

    Dollar movement

    −$39K

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for PG ENVIRONMENTAL, LLC
    Obligations: prior → latest
    $0 → −$39K
    Not comparable
    Share: prior → latest
    0% → 0%
    0.0 percentage points
    All-period obligations
    $35K
    0.15% of all-period positive obligations · 1 award
    Recorded activity
    Since Feb 7, 2023
    through Sep 29, 2025

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside10
    Not reported00
    Reported small business00
    All-period set-aside types

    None reported.

  15. #15

    Last 12mo obligations

    −$36K

    0%

    Dollar movement

    +$52K

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for CONSERVATION SCIENCE INC
    Obligations: prior → latest
    −$88K → −$36K
    Not comparable
    Share: prior → latest
    0% → 0%
    0.0 percentage points
    All-period obligations
    $186K
    0.81% of all-period positive obligations · 5 awards
    Recorded activity
    Since Feb 8, 2023
    through Apr 10, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside15
    Not reported00
    Reported small business15
    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.

Base award

This action

+$832K

CLEAN HARBORS ENVIRONMENTAL SERVICES INC

OFFICE OF OPERATIONS SUPPORT (WCF)

WCF INDUSTRIAL HAZARDOUS / NON- HAZARDOUS WASTE DISPOSAL BPA CALL 5.

Why it stands out

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

The $832K action represented 27.7% of the market’s positive obligations over the latest 12 months.

Award net obligations
$832K
Share of 12-month positive obligations
27.7%
Supporting data
Prime contractor
#3 · 8.0% share
$595K net decline despite this positive action
Funding office
#3 · 10.2% attributed share
up 3 ranks · +7.6 percentage points · $162K net increase; action exceeded it by $670K
PIID 2031ZA26F00288
Deobligation

This action

−$546K

CLEAN HARBORS ENVIRONMENTAL SERVICES INC

OFFICE OF OPERATIONS SUPPORT (WCF)

DEOBLIGATE EXCESS FUNDS.

Why it stands out

The award contracted while office-attributed spending grew overall.

The action removed $546K while office-attributed spending rose $162K.

Award net obligations
$669K
Share of 12-month positive obligations
18.2%
Supporting data
Prime contractor
#3 · 8.0% share
−6.0 percentage points · $595K net decline; action accounted for 91.7%
Funding office
#3 · 10.2% attributed share
$162K net increase despite this negative action
PIID 2031ZA24F00428 · Mod P00002
Modification

This action

+$1.2M

KONIAG OPERATIONS SERVICES LLC

OFFICE OF ENV HEALTH SAFETY

ENVIRONMENTAL HEALTH AND SAFETY SUPPORT SERVICES. OPTION YEAR ONE (1).

Why it stands out

One action equaled more than a third of the market’s latest 12-month positive obligations.

The $1.2M action represented 41.3% of the market’s positive obligations over the latest 12 months.

Award net obligations
$2.5M
Share of 12-month positive obligations
41.3%
Supporting data
Funding office
#1 · 48.2% attributed share
$633K net decline despite this positive action
PIID 2031ZA25C00059 · Mod P00004
Base award

This action

+$331K

LAMPL/HERBERT CONSULTANTS, INC.

COUNSEL

EXPERT WITNESS SERVICES REQUIRED FOR LITIGATION OF A CASE BY THE INTERNAL REVENUE SERVICE, CHIEF COUNSEL. PERIOD OF PERFORMANCE: 05/25/2026 - 05/24/2031

Why it stands out

One action represented 11.1% of the market’s latest 12-month positive obligations.

At $331K, the action was large enough to materially affect the latest 12-month market picture.

Award net obligations
$331K
Share of 12-month positive obligations
11.1%
Supporting data
Prime contractor
#5 · 5.1% share
+5.1 percentage points · $583K net increase; action accounted for 56.8%
Funding office
#2 · 31.0% attributed share
$608K net decline despite this positive action
PIID 2023H226P00277
Base award

This action

+$249K

G-A-I CONSULTANTS INC

COUNSEL

EXPERT WITNESS SERVICES REQUIRED FOR LITIGATION OF A CASE BY IRS, CHIEF COUNSEL.

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 #2 in this market by positive obligations over the latest 12 months.

Award net obligations
$249K
Share of 12-month positive obligations
8.3%
Supporting data
Prime contractor
#2 · 32.8% share
Newly active in this market; no actions were reported in the preceding 12 months
Funding office
#2 · 31.0% attributed share
$608K net decline despite this positive action
PIID 2023H226P00091
Modification

This action

+$238K

CENPEC, LLC

OFFICE OF MANAGEMENT / CFO

OCCUPATIONAL HEALTH AND SAFETY SERVICES: THE PURPOSE OF THE MODIFICATION TO EXERCISE OPTION YEAR TWO (2).

Why it stands out

This award grew while spending attributed to its office declined.

The modification added $238K while office-attributed obligations fell $218K overall.

Award net obligations
$694K
Share of 12-month positive obligations
7.9%
Supporting data
Prime contractor
#4 · 5.3% share
$665K net decline despite this positive action
Funding office
#4 · 8.5% attributed share
$218K net decline despite this positive action
PIID 2031JW24F00123 · Mod P00006
View recent award activity by date (10)
  1. KONIAG OPERATIONS SERVICES LLCModification · PIID 2031ZA25C00059
    Action+$20K
    Award net obligations$2.5M
  2. KONIAG OPERATIONS SERVICES LLCDeobligation · PIID 2031ZA25C00059
    Action−$20K
    Award net obligations$2.5M
  3. CENPEC, LLCModification · PIID 2031JW24F00123
    Action+$238K
    Award net obligations$694K
  4. P. E. LAMOREAUX & ASSOCIATES, INC.Deobligation · PIID 2023H222P00573
    Action−$64K
    Award net obligations$9K
  5. DAYTON GROUP INCBase award · PIID 2031ZA26F00371
    Action+$79K
    Award net obligations$79K
  6. MABBETT & ASSOCIATES, INC.Base award · PIID 2031ZA26F00367
    Action+$66K
    Award net obligations$66K
  7. MTC CONSULTING LLCModification · PIID 2023H226P00176
    Action+$38K
    Award net obligations$58K
  8. MTC CONSULTING LLCModification · PIID 2023H225P00149
    Action+$38K
    Award net obligations$58K
  9. CLEAN HARBORS ENVIRONMENTAL SERVICES INCBase award · PIID 2031ZA26F00323
    Action+$455K
    Award net obligations$455K
  10. LAMPL/HERBERT CONSULTANTS, INC.Base award · PIID 2023H226P00277
    Action+$331K
    Award net obligations$331K

Treasury environmental consulting market FAQs

Answers based on reported federal contract data.

Who are the top Treasury environmental consulting contractors?

In the 12 months through September 10, 2026, KONIAG OPERATIONS SERVICES LLC, G-A-I CONSULTANTS INC, and CLEAN HARBORS ENVIRONMENTAL SERVICES INC were the leading Treasury environmental consulting prime contractors by positive obligations.

  1. #1

    KONIAG OPERATIONS SERVICES LLC

    $1,238,049 in positive obligations

  2. #2

    G-A-I CONSULTANTS INC

    $985,100 in positive obligations

  3. #3

    CLEAN HARBORS ENVIRONMENTAL SERVICES INC

    $240,457 in positive obligations

Rankings use reported USAspending award data.

Did Treasury contract obligations decrease in the environmental consulting market?

Yes. Measured by net prime contract obligations, reported Treasury activity in the environmental consulting market decreased 31.2% from $3,753,557 in the preceding 12 months to $2,580,729 in the 12 months through September 10, 2026.

Latest 12 months
$2,580,729
Net prime contract obligations
Preceding 12 months
$3,753,557
Net prime contract obligations
Change
−31.2%
Between matched 12-month periods

Reported contract actions, not outlays or a forecast.

What recent Treasury contract award activity was reported in the environmental consulting market?

Recent Treasury contract award activity reported in the environmental consulting market included actions for CLEAN HARBORS ENVIRONMENTAL SERVICES INC, KONIAG OPERATIONS SERVICES LLC, and LAMPL/HERBERT CONSULTANTS, INC. 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 Treasury contracts under NAICS 541620?

From September 11, 2025 through September 10, 2026, Treasury reported 18 positive-obligation awards for environmental consulting under NAICS 541620. The leading award type was purchase order. The leading reported procedure was subject to multiple award fair opportunity.

Positive-obligation awards
18
Leading reported procedure
Subject to Multiple Award Fair Opportunity
31.1% of positive obligations
Leading award type
Purchase Order
33.8% of positive obligations
Full and open
31.1%
of positive obligations
Reported parent IDV
38.6%
of positive obligations

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