Federal Capture Intelligence

Top DOI environmental consulting contractors (NAICS 541620)

Contract actions: October 1, 2021 – September 10, 2026 Updated September 11, 2026 Department of the Interior agency guide NAICS 541620 · Environmental Consulting Services
Latest 12 months
$93.4M
Net obligations · Up $8.4M vs. $85.0M preceding
Prime contractors
217
With positive obligations in the latest 12 months

Research the DOI 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 Interior

Federal records show $515.6M in net obligations across 3,303 awards in environmental consulting at the Department of the Interior from Oct 1, 2021 through Sep 10, 2026. This market accounts for 2.0% of $25.8B in agency-wide net prime contract obligations over the period shown. Latest 12-month net obligations increased 9.9% from $85.0M to $93.4M. 41 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: $55.1M versus $43.2M through the same date in FY25 (+27.5%).
Net obligations · complete fiscal yearNet obligations · FY26 YTDContract actions
View fiscal-year data table
Fiscal yearNet obligationsContract actionsCoverage
FY2022$120.2M1,789Complete
FY2023$144.9M1,770Complete
FY2024$113.9M1,776Complete
FY2025$81.5M1,295Complete
FY2026$55.1M928YTD through Sep 10, 2026

Market at a glance

All reported prime contract awards
All-period net obligations
$515.6M
3,303 awards · 806 prime contractors
Latest 12-month movement
+9.9%
$93.4M vs. $85.0M
Leading eight prime share
43.1%
Share held by the eight leading prime contractors in the latest 12 months
View agency share, denominators, and set-aside reporting
Agency context
2.0% of $25.8B in agency-wide net obligations.
Set-aside share when reported
68.2% of 1,438 awards with reported set-aside status.
Set-aside reporting
980 set aside · 458 no set-aside · 1,865 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 MP-REGIONAL OFFICE increased
$3.6M→$23.8M+$20.2M
Latest-period activity spans 24 awards across 22 prime contractors.

Competitive shifts

HYDROS CONSULTING INC. climbed the most in the contractor rankings
#53→#11Up 42 places
The contractor accounts for 2.0% of positive obligations across 4 reported actions.
WHITETAIL ENVIRONMENTAL, LLC fell the most in the contractor rankings
#12→#123Down 111 places
The contractor accounts for 0.060% of positive obligations across 4 reported actions.
DR REED & ASSOCIATES, INC was the largest newly observed contractor
$13.5MLatest 12-month obligations
First observed in this market on Sep 23, 2025, the contractor now ranks #1 by positive obligations across 2 reported actions.
STANTEC CONSULTING SERVICES INC. lost the most market share
6.1%→0.6%−5.5 percentage points
The contractor now ranks #35 by positive obligations, based on 4 reported actions.

Market structure

Top-five contractor share increased
25.9%→33.4%+7.5 percentage points
Contractors outside the top five now account for 66.6% of positive obligations.
View 4 additional material changes

Buyer demand

Reported obligations through ACQUISITION MANAGEMENT DIVISION decreased
$8.8M→$5.1M−$3.7M
Latest-period activity spans 61 awards across 26 prime contractors.

Competitive shifts

AIR RESOURCE SPECIALISTS, INC gained the most market share
0.9%→4.2%+3.3 percentage points
The contractor now ranks #4 by positive obligations, based on 7 reported actions.
LAWELAWE TRAINING SERVICES, INC. recorded the largest net deobligation
$1.2M→−$1.1M−$2.3M
The contractor now is unranked by positive obligations, based on 1 reported action.
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.

24.8% of positive obligations were attributed to MP-REGIONAL OFFICE. That represents $23.8M, up $20.2M from the preceding 12 months.

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

  1. MP-REGIONAL OFFICE24.8% · $23.8M · up $20.2M
  2. NATIONAL OPERATIONS CENTER14.3% · $13.7M · up $707K
  3. WASHINGTON CONTRACTING OFFICE7.1% · $6.8M · up $3.0M
  4. CALIFORNIA STATE OFFICE5.5% · $5.3M · up $3.8M
  5. ACQUISITION MANAGEMENT DIVISION5.3% · $5.1M · down $3.7M
  6. All other reported offices43.0% 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

    MP-REGIONAL OFFICE

    #1Up 5 from #6

    Latest 12 months

    $23.8M

    24.8% of positive obligations

    Versus preceding 12 months

    +$20.2M

    22 active prime contractors · 24 awards

    View office comparison and evidence

    Reported obligations increased 564.1% from $3.6M to $23.8M. The office’s share of positive obligations moved from 4.2% to 24.8%, a change of +20.6 percentage points.

    The latest period contains 49 actions across 24 awards and 8 newly active prime contractors. The preceding period contained 20 active prime contractors and 23 awards.

    Leading award-level changes

  2. Reported funding office

    NATIONAL OPERATIONS CENTER

    #2Down 1 from #1

    Latest 12 months

    $13.7M

    14.3% of positive obligations

    Versus preceding 12 months

    +$707K

    30 active prime contractors · 102 awards

    View office comparison and evidence

    Reported obligations increased 5.4% from $13.0M to $13.7M. The office’s share of positive obligations moved from 15.2% to 14.3%, a change of −0.9 percentage points.

    The latest period contains 129 actions across 102 awards and 6 newly active prime contractors. The preceding period contained 46 active prime contractors and 167 awards.

  3. Reported funding office

    WASHINGTON CONTRACTING OFFICE

    #3Up 2 from #5

    Latest 12 months

    $6.8M

    7.1% of positive obligations

    Versus preceding 12 months

    +$3.0M

    17 active prime contractors · 34 awards

    View office comparison and evidence

    Reported obligations increased 78.6% from $3.8M to $6.8M. The office’s share of positive obligations moved from 4.5% to 7.1%, a change of +2.6 percentage points.

    The latest period contains 51 actions across 34 awards and 7 newly active prime contractors. The preceding period contained 22 active prime contractors and 41 awards.

  4. Reported funding office

    CALIFORNIA STATE OFFICE

    #4Up 12 from #16

    Latest 12 months

    $5.3M

    5.5% of positive obligations

    Versus preceding 12 months

    +$3.8M

    16 active prime contractors · 23 awards

    View office comparison and evidence

    Reported obligations increased 251.6% from $1.5M to $5.3M. The office’s share of positive obligations moved from 1.8% to 5.5%, a change of +3.8 percentage points.

    The latest period contains 31 actions across 23 awards and 7 newly active prime contractors. The preceding period contained 15 active prime contractors and 21 awards.

  5. Reported funding office

    ACQUISITION MANAGEMENT DIVISION

    #5Down 3 from #2

    Latest 12 months

    $5.1M

    5.3% of positive obligations

    Versus preceding 12 months

    −$3.7M

    26 active prime contractors · 61 awards

    View office comparison and evidence

    Reported obligations decreased 42.3% from $8.8M to $5.1M. The office’s share of positive obligations moved from 10.2% to 5.3%, a change of −5.0 percentage points.

    The latest period contains 95 actions across 61 awards and 9 newly active prime contractors. The preceding period contained 28 active prime contractors and 55 awards.

    Leading award-level changes

  6. Reported funding office

    LOWER COLORADO REGIONAL OFFICE

    #6Down 3 from #3

    Latest 12 months

    $4.4M

    4.5% of positive obligations

    Versus preceding 12 months

    −$238K

    12 active prime contractors · 17 awards

    View office comparison and evidence

    Reported obligations decreased 5.2% from $4.6M to $4.4M. The office’s share of positive obligations moved from 5.4% to 4.5%, a change of −0.8 percentage points.

    The latest period contains 24 actions across 17 awards and 5 newly active prime contractors. The preceding period contained 9 active prime contractors and 14 awards.

  7. Reported funding office

    NEW MEXICO STATE OFFICE

    #7Up 15 from #22

    Latest 12 months

    $4.3M

    4.5% of positive obligations

    Versus preceding 12 months

    +$3.5M

    5 active prime contractors · 7 awards

    View office comparison and evidence

    Reported obligations increased 406.2% from $858K to $4.3M. The office’s share of positive obligations moved from 1.0% to 4.5%, a change of +3.5 percentage points.

    The latest period contains 10 actions across 7 awards and 2 newly active prime contractors. The preceding period contained 5 active prime contractors and 6 awards.

  8. Reported funding office

    NATIONAL INTERAGENCY FIRE CENTER

    #8Up 3 from #11

    Latest 12 months

    $3.9M

    4.1% of positive obligations

    Versus preceding 12 months

    +$1.5M

    16 active prime contractors · 33 awards

    View office comparison and evidence

    Reported obligations increased 59.3% from $2.5M to $3.9M. The office’s share of positive obligations moved from 2.9% to 4.1%, a change of +1.2 percentage points.

    The latest period contains 39 actions across 33 awards and 6 newly active prime contractors. The preceding period contained 21 active prime contractors and 39 awards.

  9. Reported funding office

    UPPER COLORADO REGIONAL OFFICE

    #9Up 8 from #17

    Latest 12 months

    $3.7M

    3.9% of positive obligations

    Versus preceding 12 months

    +$2.2M

    10 active prime contractors · 14 awards

    View office comparison and evidence

    Reported obligations increased 148.8% from $1.5M to $3.7M. The office’s share of positive obligations moved from 1.8% to 3.9%, a change of +2.1 percentage points.

    The latest period contains 19 actions across 14 awards and 5 newly active prime contractors. The preceding period contained 7 active prime contractors and 14 awards.

  10. Reported funding office

    UTAH STATE OFFICE

    #10Up 2 from #12

    Latest 12 months

    $3.3M

    3.4% of positive obligations

    Versus preceding 12 months

    +$857K

    12 active prime contractors · 15 awards

    View office comparison and evidence

    Reported obligations increased 35.3% from $2.4M to $3.3M. The office’s share of positive obligations moved from 2.8% to 3.4%, a change of +0.6 percentage points.

    The latest period contains 23 actions across 15 awards and 5 newly active prime contractors. The preceding period contained 13 active prime contractors and 22 awards.

  11. Reported funding office

    DSC CONTRACTING SERVICES DIVISION

    #11Down 7 from #4

    Latest 12 months

    $2.5M

    2.6% of positive obligations

    Versus preceding 12 months

    −$1.9M

    25 active prime contractors · 57 awards

    View office comparison and evidence

    Reported obligations decreased 43.0% from $4.4M to $2.5M. The office’s share of positive obligations moved from 5.2% to 2.6%, a change of −2.5 percentage points.

    The latest period contains 86 actions across 57 awards and 8 newly active prime contractors. The preceding period contained 30 active prime contractors and 61 awards.

  12. Reported funding office

    DOI, NPS CONOPS STRATEGIC

    #20Down 13 from #7

    Latest 12 months

    $596K

    0.62% of positive obligations

    Versus preceding 12 months

    −$2.8M

    4 active prime contractors · 5 awards

    View office comparison and evidence

    Reported obligations decreased 82.3% from $3.4M to $596K. The office’s share of positive obligations moved from 3.9% to 0.62%, a change of −3.3 percentage points.

    The latest period contains 7 actions across 5 awards and 2 newly active prime contractors. The preceding period contained 4 active prime contractors and 5 awards.

  13. Reported funding office

    WESTERN REGION

    #44Down 34 from #10

    Latest 12 months

    $161K

    0.17% of positive obligations

    Versus preceding 12 months

    −$2.4M

    3 active prime contractors · 3 awards

    View office comparison and evidence

    Reported obligations decreased 93.6% from $2.5M to $161K. The office’s share of positive obligations moved from 3.0% to 0.17%, a change of −2.8 percentage points.

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

  14. Reported funding office

    INDIAN EDUCATION ACQUISITION OFFICE

    #56Down 43 from #13

    Latest 12 months

    $54K

    0.060% of positive obligations

    Versus preceding 12 months

    −$2.1M

    1 active prime contractor · 3 awards

    View office comparison and evidence

    Reported obligations decreased 97.5% from $2.2M to $54K. The office’s share of positive obligations moved from 2.5% to 0.060%, a change of −2.5 percentage points.

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

Contract types, competition, and procurement methods

From Sep 11, 2025 through Sep 10, 2026, 416 awards had positive obligations totaling $103.8M. Subject to Multiple Award Fair Opportunity was the leading reported procedure, accounting for 36.2% of positive obligations. Awards with a reported parent IDV accounted for 66.5%.

Leading award type
41.7%
Delivery Order
Leading reported procedure
36.2%
Subject to Multiple Award Fair Opportunity
Reported parent IDV
66.5%
of positive obligations had a reported parent IDV
Median reported offers
2
332 of 416 awards reported offers

Buying method changes

Compared with Sep 11, 2024–Sep 10, 2025. Based on 416 current awards and 531 preceding awards with positive net obligations.

Reported full-and-open obligation share
37.7%
Down from 60.0% 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 541620 peer median, parent-IDV obligation share is 17.3 percentage points lower, reported full-and-open obligation share is 8.8 percentage points lower, delivery-order obligation share is 18.3 percentage points lower, and median positive award obligations are 57.1% lower.

MeasureThis marketPeer medianDifference
Parent-IDV obligation share66.5%83.8%-17.3 pts
Reported full-and-open obligation share37.7%46.5%-8.8 pts
Delivery-order obligation share41.7%60.0%-18.3 pts
Median positive award obligations$66K$154K-57.1%
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
Delivery Order(C)161$43.3M41.7%
Purchase Order(B)136$32.7M31.5%
BPA Call(A)111$25.8M24.8%
Definitive Contract(D)8$2.1M2.0%

Reported parent-award types

Reported valueAwardsPositive obligationsShare
FSS(C)106$29.3M28.2%
BPA(E)111$25.8M24.8%
IDC(B)55$14.0M13.5%
Not reported144$34.8M33.5%

Single- or multiple-award parent structure

Reported valueAwardsPositive obligationsShare
Multiple Award(M)188$52.3M50.4%
Single Award(S)84$16.7M16.1%
Not reported144$34.8M33.5%

Solicitation procedures

Reported valueAwardsPositive obligationsShare
Subject to Multiple Award Fair Opportunity(MAFO)165$37.6M36.2%
Sp1(SIMPLIFIED ACQUISITION)29$19.8M19.1%
Simplified Acquisition(SP1)124$19.5M18.8%
Mafo(SUBJECT TO MULTIPLE AWARD FAIR OPPORTUNITY)47$16.7M16.1%
Negotiated Proposal/Quote(NP)22$4.6M4.4%
Np(NEGOTIATED PROPOSAL/QUOTE)10$3.3M3.2%
Other reported values19$2.3M2.2%

Extent competed

Reported valueAwardsPositive obligationsShare
Full and Open Competition(A)171$39.1M37.7%
F(COMPETED UNDER SAP)23$19.6M18.8%
A(FULL AND OPEN COMPETITION)53$18.8M18.1%
Competed Under SAP(F)100$17.8M17.1%
Full and Open Competition After Exclusion of Sources(D)16$3.0M2.9%
Not Competed Under SAP(G)24$1.7M1.6%
Other reported values29$3.7M3.6%

Fair-opportunity and limited-source reporting

Reported valueAwardsPositive obligationsShare
Fair Opportunity Given(FAIR)128$34.8M33.5%
Competitive Set Aside(CSA)56$13.1M12.6%
Only One Source - Other(ONE)15$3.7M3.5%
Follow-on Action Following Competitive Initial Action(FOO)7$1.7M1.7%
Other Statutory Authority(OSA)5$990K0.95%
Sole Source(SS)1$49K0.050%
Not reported204$49.5M47.7%

Other-than-full-and-open reasons

Reported valueAwardsPositive obligationsShare
Authorized by Statute (FAR 6.302-5(A)(2)(I))(OTH)14$2.5M2.4%
Only One Source-Other (FAR 6.302-1 Other)(ONE)15$935K0.90%
SAP Non-Competition (FAR 13)(SP2)16$751K0.72%
Unique Source (FAR 6.302-1(B)(1))(UNQ)1$105K0.10%
Less Than or Equal to the Micro-Purchase Threshold(MPT)3$18K0.020%
Not reported367$99.5M95.9%

Contract pricing types

Reported valueAwardsPositive obligationsShare
Firm Fixed Price(J)293$58.1M55.9%
J(FIRM FIXED PRICE)81$23.5M22.6%
Y(TIME AND MATERIALS)6$14.7M14.2%
Time and Materials(Y)12$3.9M3.8%
Labor Hours(Z)21$1.8M1.8%
Z(LABOR HOURS)3$1.8M1.7%

Product or Service Codes

Reported valueAwardsPositive obligationsShare
Support- Professional: Other(R499)44$23.2M22.4%
Special Studies/Analysis- Environmental Assessments(B510)62$21.1M20.3%
Other Environmental Services(F999)64$16.6M16.0%
Special Studies/Analysis- Regulatory(B528)2$5.7M5.5%
Special Studies/Analysis- Archeological/Paleontological(B503)38$4.8M4.6%
Environmental Systems Protection- Environmental Consulting and Legal Support(F115)15$4.6M4.4%
Other reported values191$27.8M26.8%

Awarding subagencies

Reported valueAwardsPositive obligationsShare
Bureau of Land Management(1422)141$37.8M36.4%
Bureau of Reclamation(1425)68$37.0M35.7%
National Park Service(1443)82$14.8M14.3%
Bureau of Ocean Energy Management(1435)23$6.5M6.3%
U.S. Fish and Wildlife Service(1448)52$4.6M4.5%
Departmental Offices(1406)15$1.6M1.6%
Other reported values35$1.4M1.3%

Awarding offices

Reported valueAwardsPositive obligationsShare
Mp-Regional Office(140R20)21$24.0M23.1%
National Operations Center(140L06)41$14.9M14.3%
Washington Contracting Office(140P21)24$7.6M7.3%
Acquisition Management Division(140M01)23$6.5M6.3%
Upper Colorado Regional Office(140R40)15$6.2M5.9%
California State Office(140L12)8$5.2M5.0%
Other reported values284$39.5M38.1%

Reported parent IDVs

Reported valueAwardsPositive obligationsShare
140L0623A0016(1422)9$5.3M5.1%
140P2125D0014(1443)4$3.9M3.8%
47QRAA20D002W(4732)1$3.8M3.7%
47QRAA18D00CR(4732)3$3.8M3.7%
GS00F079CA(4732)2$3.6M3.5%
GS10F111BA(4732)1$2.8M2.7%
140L0618A0014(1422)2$2.7M2.6%
140M0123D0001(1435)10$2.5M2.5%
Other reported values240$40.6M39.2%
Not reported144$34.8M33.5%

Offers, award size, and timing

Median reported offers
2 median
332 reported · 84 not reported
Positive award obligations
$66K median
$30K–$220K middle 50%
Reported performance period
497 days (~16 months) median
416 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
41 of 217prime contractors account for at least 80% of positive obligations in the last 12 months
Largest prime contractor
13.7%of positive obligations in the last 12 months
Leading four prime contractors
29.5%of positive obligations in the last 12 months
Leading eight prime contractors
43.1%of positive obligations in the last 12 months

Based on $98.7M 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

    $13.5M

    13.7%

    Dollar movement

    +$13.5M

    vs. prior 12 months

    Last 12mo awards

    1 award

    2 actions

    Historical and award details for DR REED & ASSOCIATES, INC
    Obligations: prior → latest
    $0 → $13.5M
    Not comparable
    Share: prior → latest
    0% → 13.7%
    +13.7 percentage points
    All-period obligations
    $13.5M
    2.6% of all-period positive obligations · 1 award
    Recorded activity
    Since Sep 23, 2025
    through Aug 27, 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 · WOSB set-aside
  2. #2

    Last 12mo obligations

    $7.1M

    7.2%

    Dollar movement

    +$1.3M

    vs. prior 12 months

    Last 12mo awards

    30 awards

    37 actions

    Historical and award details for ENVIRONMENTAL MANAGEMENT & PLANNING SOLUTIONS LLC
    Obligations: prior → latest
    $5.8M → $7.1M
    +21.8%
    Share: prior → latest
    6.3% → 7.2%
    +0.9 percentage points
    All-period obligations
    $54.9M
    10.5% of all-period positive obligations · 133 awards
    Recorded activity
    Since Oct 4, 2021
    through Sep 8, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside56
    Reported no set-aside00
    Not reported2541
    Reported small business3047
    All-period set-aside types
    • 24 · Total small business
  3. #3

    Last 12mo obligations

    $4.4M

    4.5%

    Dollar movement

    +$316K

    vs. prior 12 months

    Last 12mo awards

    5 awards

    13 actions

    Historical and award details for EASTERN RESEARCH GROUP INC
    Obligations: prior → latest
    $4.1M → $4.4M
    +7.7%
    Share: prior → latest
    4.4% → 4.5%
    +0.1 percentage points
    All-period obligations
    $9.9M
    1.9% of all-period positive obligations · 27 awards
    Recorded activity
    Since Dec 11, 2021
    through Aug 31, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside11
    Not reported48
    Reported small business00
    All-period set-aside types

    None reported.

  4. #4

    Last 12mo obligations

    $4.1M

    4.2%

    Dollar movement

    +$3.3M

    vs. prior 12 months

    Last 12mo awards

    7 awards

    7 actions

    Historical and award details for AIR RESOURCE SPECIALISTS, INC
    Obligations: prior → latest
    $816K → $4.1M
    +404.6%
    Share: prior → latest
    0.88% → 4.2%
    +3.3 percentage points
    All-period obligations
    $14.8M
    2.8% of all-period positive obligations · 37 awards
    Recorded activity
    Since Nov 9, 2021
    through Jul 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 business76
    All-period set-aside types
    • 6 · Total small business
  5. #5

    Last 12mo obligations

    $3.9M

    3.9%

    Dollar movement

    +$1.4M

    vs. prior 12 months

    Last 12mo awards

    9 awards

    13 actions

    Historical and award details for COPPERHEAD ENVIRONMENTAL CONSULTING INC
    Obligations: prior → latest
    $2.5M → $3.9M
    +55.2%
    Share: prior → latest
    2.7% → 3.9%
    +1.2 percentage points
    All-period obligations
    $7.4M
    1.4% of all-period positive obligations · 20 awards
    Recorded activity
    Since Nov 2, 2021
    through Jun 24, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside21
    Reported no set-aside10
    Not reported65
    Reported small business96
    All-period set-aside types
    • 5 · Total small business
  6. #6

    Last 12mo obligations

    $3.8M

    3.9%

    Dollar movement

    +$3.8M

    vs. prior 12 months

    Last 12mo awards

    1 award

    1 action

    Historical and award details for S C & A INC
    Obligations: prior → latest
    $0 → $3.8M
    Not comparable
    Share: prior → latest
    0% → 3.9%
    +3.9 percentage points
    All-period obligations
    $3.8M
    0.72% of all-period positive obligations · 5 awards
    Recorded activity
    Since Jun 21, 2022
    through Sep 24, 2025

    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.

  7. #7

    Last 12mo obligations

    $3.0M

    3.0%

    Dollar movement

    +$5.3M

    vs. prior 12 months

    Last 12mo awards

    2 awards

    4 actions

    Historical and award details for SEQUOIA ECOLOGICAL CONSULTING, INC.
    Obligations: prior → latest
    −$2.4M → $3.0M
    Not comparable
    Share: prior → latest
    0% → 3.0%
    +3.0 percentage points
    All-period obligations
    $610K
    0.12% of all-period positive obligations · 2 awards
    Recorded activity
    Since Nov 15, 2021
    through Aug 14, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside21
    Reported no set-aside00
    Not reported00
    Reported small business21
    All-period set-aside types
    • 2 · WOSB set-aside
  8. #8

    Last 12mo obligations

    $2.8M

    2.8%

    Dollar movement

    +$1.9M

    vs. prior 12 months

    Last 12mo awards

    3 awards

    3 actions

    Historical and award details for NORTH WIND RESOURCE CONSULTING LLC
    Obligations: prior → latest
    $941K → $2.8M
    +197.2%
    Share: prior → latest
    1.0% → 2.8%
    +1.8 percentage points
    All-period obligations
    $4.7M
    0.90% of all-period positive obligations · 15 awards
    Recorded activity
    Since Oct 19, 2021
    through Feb 13, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside01
    Reported no set-aside11
    Not reported23
    Reported small business35
    All-period set-aside types
    • 4 · Total small business
    • 1 · 8(a) sole source
    • 1 · Indian small business
  9. #9

    Last 12mo obligations

    $2.4M

    2.5%

    Dollar movement

    +$1.7M

    vs. prior 12 months

    Last 12mo awards

    12 awards

    20 actions

    Historical and award details for SWCA, INCORPORATED
    Obligations: prior → latest
    $692K → $2.4M
    +251.2%
    Share: prior → latest
    0.74% → 2.5%
    +1.7 percentage points
    All-period obligations
    $19.4M
    3.7% of all-period positive obligations · 57 awards
    Recorded activity
    Since Oct 20, 2021
    through Aug 12, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside32
    Not reported920
    Reported small business00
    All-period set-aside types

    None reported.

  10. #10

    Last 12mo obligations

    $2.3M

    2.3%

    Dollar movement

    +$190K

    vs. prior 12 months

    Last 12mo awards

    21 awards

    28 actions

    Historical and award details for SUNDANCE CONSULTANTS, LLC
    Obligations: prior → latest
    $2.1M → $2.3M
    +9.1%
    Share: prior → latest
    2.2% → 2.3%
    +0.1 percentage points
    All-period obligations
    $7.8M
    1.5% of all-period positive obligations · 53 awards
    Recorded activity
    Since Dec 30, 2021
    through Aug 31, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside36
    Reported no set-aside00
    Not reported1810
    Reported small business69
    All-period set-aside types
    • 13 · Total small business
    • 2 · Indian small business
    • 1 · 8(a) sole source
    • +1 more types
  11. #11

    Last 12mo obligations

    $2.0M

    2.0%

    Dollar movement

    +$1.6M

    vs. prior 12 months

    Last 12mo awards

    3 awards

    4 actions

    Historical and award details for HYDROS CONSULTING INC.
    Obligations: prior → latest
    $408K → $2.0M
    +383.7%
    Share: prior → latest
    0.44% → 2.0%
    +1.6 percentage points
    All-period obligations
    $3.7M
    0.71% of all-period positive obligations · 4 awards
    Recorded activity
    Since May 17, 2022
    through Jul 20, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside10
    Reported no set-aside00
    Not reported21
    Reported small business31
    All-period set-aside types
    • 2 · Total small business
  12. #12

    Last 12mo obligations

    $1.9M

    1.9%

    Dollar movement

    +$895K

    vs. prior 12 months

    Last 12mo awards

    17 awards

    22 actions

    Historical and award details for BLUE WORLD RESEARCH INSTITUTE INC
    Obligations: prior → latest
    $1.0M → $1.9M
    +87.9%
    Share: prior → latest
    1.1% → 1.9%
    +0.8 percentage points
    All-period obligations
    $12.4M
    2.4% of all-period positive obligations · 35 awards
    Recorded activity
    Since Oct 4, 2021
    through Sep 3, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside00
    Reported no set-aside00
    Not reported1715
    Reported small business00
    All-period set-aside types

    None reported.

  13. #13

    Last 12mo obligations

    $1.9M

    1.9%

    Dollar movement

    +$1.2M

    vs. prior 12 months

    Last 12mo awards

    4 awards

    4 actions

    Historical and award details for TETRA TECH, INC.
    Obligations: prior → latest
    $649K → $1.9M
    +189.5%
    Share: prior → latest
    0.70% → 1.9%
    +1.2 percentage points
    All-period obligations
    $3.3M
    0.62% of all-period positive obligations · 12 awards
    Recorded activity
    Since Oct 28, 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 reported42
    Reported small business00
    All-period set-aside types

    None reported.

  14. #14

    Last 12mo obligations

    $1.7M

    1.8%

    Dollar movement

    −$258K

    vs. prior 12 months

    Last 12mo awards

    25 awards

    36 actions

    Historical and award details for PALEOWEST LLC
    Obligations: prior → latest
    $2.0M → $1.7M
    −13.0%
    Share: prior → latest
    2.1% → 1.8%
    −0.4 percentage points
    All-period obligations
    $12.5M
    2.4% of all-period positive obligations · 91 awards
    Recorded activity
    Since Nov 5, 2021
    through Sep 8, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside911
    Reported no set-aside12
    Not reported1516
    Reported small business1019
    All-period set-aside types
    • 39 · Total small business
  15. #15

    Last 12mo obligations

    $1.6M

    1.7%

    Dollar movement

    −$303K

    vs. prior 12 months

    Last 12mo awards

    50 awards

    65 actions

    Historical and award details for AARCHER, INC.
    Obligations: prior → latest
    $1.9M → $1.6M
    −15.6%
    Share: prior → latest
    2.1% → 1.7%
    −0.4 percentage points
    All-period obligations
    $8.7M
    1.7% of all-period positive obligations · 182 awards
    Recorded activity
    Since Dec 7, 2021
    through Sep 2, 2026

    Award reporting

    Latest and prior 12-month award reporting
    Reported award evidenceLatestPrior
    Reported set-aside35
    Reported no set-aside00
    Not reported4751
    Reported small business5056
    All-period set-aside types
    • 12 · Total small business

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

+$6.9M

DR REED & ASSOCIATES, INC

MP-REGIONAL OFFICE

CONTINUOUS FLOW AND WATER QUALITY MONITORING NETWORK IN THE SACRAMENTO-SAN JOAQUIN DELTA AND SUISUN BAY

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

Award net obligations
$13.5M
Share of 12-month positive obligations
7.0%
Supporting data
Prime contractor
#1 · 13.7% share
Newly active in this market; no actions were reported in the preceding 12 months
Funding office
#1 · 24.8% attributed share
up 5 ranks · +20.6 percentage points · $20.2M net increase; action accounted for 34.2%
Related:Funding office gainLargest newly observed contractor
PIID 140R2025P0072
Base award

This action

+$3.8M

S C & A INC

NATIONAL OPERATIONS CENTER

11 MAJOR RULEMAKINGS CONTRACT

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

Award net obligations
$3.8M
Share of 12-month positive obligations
3.9%
Supporting data
Prime contractor
#6 · 3.9% share
Newly active in this market; no actions were reported in the preceding 12 months
PIID 140L0625F0159
Base award

This action

+$2.0M

AIR RESOURCE SPECIALISTS, INC

WASHINGTON CONTRACTING OFFICE

NR-ARD-1 GPMP NETWORK OPS TASK ORDER

Why it stands out

The contractor climbed 24 positions in this market.

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

Award net obligations
$2.0M
Share of 12-month positive obligations
2.0%
Supporting data
Prime contractor
#4 · 4.2% share
up 24 ranks · +3.3 percentage points · $3.3M net increase; action accounted for 59.7%
Funding office
#3 · 7.1% attributed share
up 2 ranks · +2.6 percentage points · $3.0M net increase; action accounted for 65.5%
Related:Largest share gain
PIID 140P2126F0094
Base award

This action

+$2.8M

NORTH WIND RESOURCE CONSULTING LLC

CALIFORNIA STATE OFFICE

FACILITATION AND ASSISTANCE FOR PREPARATION OF TWO (2) ENVIRONMENTAL IMPACT STATEMENTS - TRANSMISSION LINE RATING REMEDIATION (TLRR) PROJECTS

Why it stands out

The contractor climbed 16 positions in this market.

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

Award net obligations
$2.8M
Share of 12-month positive obligations
2.8%
Supporting data
Funding office
#4 · 5.5% attributed share
up 12 ranks · +3.8 percentage points · $3.8M net increase; action accounted for 73.4%
PIID 140L1225F0057
Modification

This action

+$2.4M

ENVIRONMENTAL MANAGEMENT & PLANNING SOLUTIONS LLC

LOWER COLORADO REGIONAL OFFICE

EIS - POST-2026 LOWER COLORADO RIVER RESERVOIR OPERATIONAL STRATEGIES FOR LAKE POWELL AND LAKE MEAD - ADD WORK

Why it stands out

This award grew while spending attributed to its office declined.

The modification added $2.4M while office-attributed obligations fell $238K overall.

Award net obligations
$14.4M
Share of 12-month positive obligations
2.4%
Supporting data
Funding office
#6 · 4.5% attributed share
$238K net decline despite this positive action
PIID 140R3023F0037 · Mod P00005
Base award

This action

+$1.5M

HYDROS CONSULTING INC.

UPPER COLORADO REGIONAL OFFICE

GSL BASIN STUDY MODELING SERVICES - THIS AWARD REPLACES 140R4025F0078

Why it stands out

The contractor climbed 42 positions in this market.

It now ranks #11 by positive obligations over the latest 12 months.

Award net obligations
$1.6M
Share of 12-month positive obligations
1.5%
Supporting data
Funding office
#9 · 3.9% attributed share
up 8 ranks · +2.1 percentage points · $2.2M net increase; action accounted for 67.3%
PIID 140R4025F0092
View recent award activity by date (10)
  1. CRITIGEN LLCModification · PIID 140L0622F0243
    Action+$155K
    Award net obligations$723K
  2. TETRA TECH, INC.Base award · PIID 140F0S26F0030
    Action+$140K
    Award net obligations$140K
  3. ASIR LLCModification · PIID 140R4021C0007
    Action+$133K
    Award net obligations$1.4M
  4. PINYON ENVIRONMENTAL, INC.Deobligation · PIID 140L6320F0014
    Action−$70K
    Award net obligations$1.8M
  5. THE GREAT BASIN INSTITUTEDeobligation · PIID 140L0623F0188
    Action−$62K
    Award net obligations$154K
  6. STATISTICAL RESEARCH INCBase award · PIID 140L4326F0153
    Action+$60K
    Award net obligations$60K
  7. SHIPLEY GROUP, INC., THEBase award · PIID 140G0126F0310
    Action+$59K
    Award net obligations$59K
  8. ENVIRONMENTAL COMPLIANCE CONSULTANTS, INC.Modification · PIID 140R8124F0208
    Action+$33K
    Award net obligations$81K
  9. VANASSE HANGEN BRUSTLIN INCModification · PIID 140P2025F0310
    Action+$18K
    Award net obligations$231K
  10. ENVIRONMENTAL MANAGEMENT & PLANNING SOLUTIONS LLCBase award · PIID 140L1726F0024
    Action+$1.6M
    Award net obligations$1.6M

DOI environmental consulting market FAQs

Answers based on reported federal contract data.

Who are the top DOI environmental consulting contractors?

In the 12 months through September 10, 2026, DR REED & ASSOCIATES, INC, ENVIRONMENTAL MANAGEMENT & PLANNING SOLUTIONS LLC, and EASTERN RESEARCH GROUP INC were the leading DOI environmental consulting prime contractors by positive obligations.

  1. #1

    DR REED & ASSOCIATES, INC

    $13,509,855 in positive obligations

  2. #2

    ENVIRONMENTAL MANAGEMENT & PLANNING SOLUTIONS LLC

    $7,091,638 in positive obligations

  3. #3

    EASTERN RESEARCH GROUP INC

    $4,397,345 in positive obligations

Rankings use reported USAspending award data.

Did DOI contract obligations increase in the environmental consulting market?

Yes. Measured by net prime contract obligations, reported DOI activity in the environmental consulting market increased 9.9% from $84,953,536 in the preceding 12 months to $93,365,614 in the 12 months through September 10, 2026.

Latest 12 months
$93,365,614
Net prime contract obligations
Preceding 12 months
$84,953,536
Net prime contract obligations
Change
+9.9%
Between matched 12-month periods

Reported contract actions, not outlays or a forecast.

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

Recent DOI contract award activity reported in the environmental consulting market included actions for DR REED & ASSOCIATES, INC, S C & A INC, and AIR RESOURCE SPECIALISTS, 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 DOI contracts under NAICS 541620?

From September 11, 2025 through September 10, 2026, DOI reported 416 positive-obligation awards for environmental consulting under NAICS 541620. The leading award type was delivery order. The leading reported procedure was subject to multiple award fair opportunity.

Positive-obligation awards
416
Leading reported procedure
Subject to Multiple Award Fair Opportunity
36.2% of positive obligations
Leading award type
Delivery Order
41.7% of positive obligations
Full and open
37.7%
of positive obligations
Reported parent IDV
66.5%
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