Engineering services contractors at the Department of the Interior
- Latest 12 months
- $198.3M
- Net obligations · Up $24.1M vs. $174.2M preceding
- Prime contractors
- 180
- With positive obligations in the latest 12 months
Market snapshot for engineering services at the Department of the Interior
Federal records show $1.1B in net obligations across 3,095 awards in engineering services at the Department of the Interior from Oct 1, 2021 through Jul 27, 2026. This market accounts for 4.3% of $24.7B in agency-wide net prime contract obligations over the period shown. Latest 12-month net obligations increased 13.8% from $174.2M to $198.3M. 41 prime contractors accounted for at least 80% of positive obligations in that latest period.
Fiscal-year activity
FY26 is year-to-date through Jul 27, 2026; earlier years show complete fiscal-year totals.
View fiscal-year data table
| Fiscal year | Net obligations | Contract actions | Coverage |
|---|---|---|---|
| FY2022 | $239.3M | 1,787 | Complete |
| FY2023 | $296.2M | 1,816 | Complete |
| FY2024 | $246.0M | 1,858 | Complete |
| FY2025 | $188.7M | 1,451 | Complete |
| FY2026 | $99.2M | 898 | YTD through Jul 27, 2026 |
Market at a glance
All reported prime contract awards- All-period net obligations
- $1.1B
- 3,095 awards · 393 prime contractors
- Latest 12-month movement
- +13.8%
- $198.3M vs. $174.2M
- Leading eight prime share
- 39.5%
- Share held by the eight leading prime contractors in the latest 12 months
View agency share, denominators, and set-aside reporting
- Agency context
- 4.3% of $24.7B in agency-wide net obligations.
- Set-aside share when reported
- 51.2% of 328 awards with reported set-aside status.
- Set-aside reporting
- 168 set aside · 160 no set-aside · 2,767 not reported
What changed in the last 12 months?
Jul 28, 2025–Jul 27, 2026, compared with Jul 28, 2024–Jul 27, 2025.
Competitive shifts
CENTRAL GEOTECHNICAL SERVICES, LLC fell the most in the contractor rankings
HDR ENGINEERING, INC. lost the most market share
16 contractors were first observed in this market during the latest 12 months
View 16 contractors
- JACOBS GOVERNMENT SERVICES COMPANYFirst observed May 14, 2026 in this market$4.4M
- KENALL-HALFF JV, LLCFirst observed Dec 23, 2025 in this market$984K
- BROWN CONSTRUCTION SERVICES, INCFirst observed Feb 9, 2026 in this market$963K
- RESILIENT LLC JOINT VENTUREFirst observed Sep 22, 2025 in this market$932K
- KAL ARCHITECTS, INC.First observed Sep 10, 2025 in this market$659K
- BEZEK-DURST-SEISER, INC.First observed Sep 23, 2025 in this market$657K
- DYRON V MURPHY ARCHITECTS PCFirst observed Sep 23, 2025 in this market$519K
- LINFIELD, HUNTER & JUNIUS, INCFirst observed Sep 22, 2025 in this market$299K
- BLOSSOM CONSULTING INCFirst observed Aug 8, 2025 in this market$199K
- ENGINEERING OPERATIONS LLCFirst observed Sep 18, 2025 in this market$180K
- ITASCA CONSULTING GROUP INCFirst observed Aug 7, 2025 in this market$140K
- FPM GROUP LTDFirst observed Sep 18, 2025 in this market$125K
- EN ENGINEERING, L.L.C.First observed Mar 6, 2026 in this market$109K
- ASRC CONSULTING & ENVIRONMENTAL SERVICES, LLCFirst observed Sep 25, 2025 in this market$95K
- HOUSER WALKER ARCHITECTURE, LLCFirst observed Feb 17, 2026 in this market$64K
- GENTRY GEOTECHNICAL ENGINEERING, PLLCFirst observed Sep 4, 2025 in this market$19K
JACOBS GOVERNMENT SERVICES COMPANY was the largest newly observed contractor
Buyer demand
Reported obligations through GREAT PLAINS REGIONAL OFFICE increased
View 3 additional material changes
Market structure
Reported set-aside share increased
Buyer demand
Reported obligations through DSC CONTRACTING SERVICES DIVISION decreased
Competitive shifts
BLUE ARROW ARCHITECTURE LLC had no reported activity in the latest 12 months
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.
Funding pattern for engineering services at the Department of the Interior
See how positive obligations were attributed across funding offices in the 12 months ending Jul 27, 2026.
30.6% of positive obligations were attributed to DSC CONTRACTING SERVICES DIVISION. That represents $60.7M, down $8.9M from the preceding 12 months.
Latest 12-month share of positive obligations; the gray segment represents all other reported offices.
- DSC CONTRACTING SERVICES DIVISION30.6% · $60.7M · down $8.9M
- BUREAU OF INDIAN AFFAIRS16.1% · $32.0M · up $15.0M
- GREAT PLAINS REGIONAL OFFICE9.7% · $19.2M · up $17.3M
- OFC OF ACQUSITION GRANTS-NATIONAL7.3% · $14.5M · down $1.8M
- FACILITIES ADMIN SERVICES (00030)3.1% · $6.1M · up $348K
- All other reported offices33.3% 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.
Reported funding office
DSC CONTRACTING SERVICES DIVISION
#1Rank unchangedLatest 12 months
$60.7M
30.6% of positive obligations
Versus preceding 12 months
−$8.9M
57 active prime contractors · 230 awards
View office comparison and evidence
Reported obligations decreased 12.8% from $69.5M to $60.7M. The office’s share of positive obligations moved from 39.5% to 30.6%, a change of −8.9 percentage points.
The latest period contains 334 actions across 230 awards and 14 newly active prime contractors. The preceding period contained 57 active prime contractors and 305 awards.
Leading award-level changes
- HDR ENGINEERING, INC. · PIID 140P2024F0406−$12.5M: $12.5M → $0
- JACOBS GOVERNMENT SERVICES COMPANY · PIID 140P2025F0316+$7.7M: $0 → $7.7M
Reported funding office
BUREAU OF INDIAN AFFAIRS
#2Rank unchangedLatest 12 months
$32.0M
16.1% of positive obligations
Versus preceding 12 months
+$15.0M
17 active prime contractors · 41 awards
View office comparison and evidence
Reported obligations increased 88.7% from $16.9M to $32.0M. The office’s share of positive obligations moved from 9.6% to 16.1%, a change of +6.5 percentage points.
The latest period contains 82 actions across 41 awards and 1 newly active prime contractor. The preceding period contained 21 active prime contractors and 57 awards.
Reported funding office
GREAT PLAINS REGIONAL OFFICE
#3Up 13 from #16Latest 12 months
$19.2M
9.7% of positive obligations
Versus preceding 12 months
+$17.3M
7 active prime contractors · 7 awards
View office comparison and evidence
Reported obligations increased 891.1% from $1.9M to $19.2M. The office’s share of positive obligations moved from 1.1% to 9.7%, a change of +8.6 percentage points.
The latest period contains 12 actions across 7 awards and 3 newly active prime contractors. The preceding period contained 6 active prime contractors and 8 awards.
Leading award-level changes
- FORSGREN ASSOCIATES INC · PIID 140R6025F0014+$19.0M: $0 → $19.0M
- CENTRAL GEOTECHNICAL SERVICES, LLC · PIID 140R6024F0008−$1.3M: $1.3M → $0
Reported funding office
OFC OF ACQUSITION GRANTS-NATIONAL
#4Down 1 from #3Latest 12 months
$14.5M
7.3% of positive obligations
Versus preceding 12 months
−$1.8M
12 active prime contractors · 19 awards
View office comparison and evidence
Reported obligations decreased 11.0% from $16.3M to $14.5M. The office’s share of positive obligations moved from 9.3% to 7.3%, a change of −1.9 percentage points.
The latest period contains 25 actions across 19 awards and 2 newly active prime contractors. The preceding period contained 18 active prime contractors and 25 awards.
Reported funding office
FACILITIES ADMIN SERVICES (00030)
#5Rank unchangedLatest 12 months
$6.1M
3.1% of positive obligations
Versus preceding 12 months
+$348K
1 active prime contractor · 1 award
View office comparison and evidence
Reported obligations increased 6.1% from $5.7M to $6.1M. The office’s share of positive obligations moved from 3.3% to 3.1%, a change of −0.2 percentage points.
The latest period contains 7 actions across 1 award. The preceding period contained 2 active prime contractors and 2 awards.
Reported funding office
MP-REGIONAL OFFICE
#6New to the positive-obligation rankingLatest 12 months
$5.7M
2.9% of positive obligations
Versus preceding 12 months
+$7.3M
8 active prime contractors · 9 awards
View office comparison and evidence
Reported obligations moved from $1.7M in net deobligations to $5.7M in net obligations. The office’s share of positive obligations moved from 0% to 2.9%, a change of +2.9 percentage points.
The latest period contains 14 actions across 9 awards and 4 newly active prime contractors. The preceding period contained 7 active prime contractors and 11 awards.
Reported funding office
PACIFIC NW REGION PN 6615
#7Up 2 from #9Latest 12 months
$4.9M
2.5% of positive obligations
Versus preceding 12 months
+$1.7M
6 active prime contractors · 27 awards
View office comparison and evidence
Reported obligations increased 53.1% from $3.2M to $4.9M. The office’s share of positive obligations moved from 1.8% to 2.5%, a change of +0.7 percentage points.
The latest period contains 37 actions across 27 awards and 3 newly active prime contractors. The preceding period contained 5 active prime contractors and 50 awards.
Reported funding office
NATIONAL OPERATIONS CENTER
#8Down 2 from #6Latest 12 months
$4.4M
2.2% of positive obligations
Versus preceding 12 months
−$671K
11 active prime contractors · 32 awards
View office comparison and evidence
Reported obligations decreased 13.2% from $5.1M to $4.4M. The office’s share of positive obligations moved from 2.9% to 2.2%, a change of −0.7 percentage points.
The latest period contains 38 actions across 32 awards and 3 newly active prime contractors. The preceding period contained 10 active prime contractors and 53 awards.
Reported funding office
FWS MIDWEST REGIONAL OFFICE
#9Up 4 from #13Latest 12 months
$3.9M
2.0% of positive obligations
Versus preceding 12 months
+$1.5M
15 active prime contractors · 24 awards
View office comparison and evidence
Reported obligations increased 65.6% from $2.3M to $3.9M. The office’s share of positive obligations moved from 1.3% to 2.0%, a change of +0.6 percentage points.
The latest period contains 39 actions across 24 awards and 6 newly active prime contractors. The preceding period contained 11 active prime contractors and 20 awards.
Reported funding office
PWR SF/SEA MABO(85000)
#10Down 2 from #8Latest 12 months
$3.8M
1.9% of positive obligations
Versus preceding 12 months
+$12K
20 active prime contractors · 46 awards
View office comparison and evidence
Reported obligations increased 0.3% from $3.8M to $3.8M. The office’s share of positive obligations moved from 2.1% to 1.9%, a change of −0.2 percentage points.
The latest period contains 68 actions across 46 awards and 9 newly active prime contractors. The preceding period contained 16 active prime contractors and 45 awards.
Reported funding office
FWS HEADQUARTERS
#12Up 42 from #54Latest 12 months
$2.9M
1.5% of positive obligations
Versus preceding 12 months
+$2.7M
8 active prime contractors · 13 awards
View office comparison and evidence
Reported obligations increased 1425.9% from $190K to $2.9M. The office’s share of positive obligations moved from 0.11% to 1.5%, a change of +1.4 percentage points.
The latest period contains 16 actions across 13 awards and 4 newly active prime contractors. The preceding period contained 7 active prime contractors and 11 awards.
Reported funding office
SER EAST MABO(51000)
#17Up 42 from #59Latest 12 months
$2.3M
1.2% of positive obligations
Versus preceding 12 months
+$2.2M
9 active prime contractors · 27 awards
View office comparison and evidence
Reported obligations increased 1825.8% from $121K to $2.3M. The office’s share of positive obligations moved from 0.070% to 1.2%, a change of +1.1 percentage points.
The latest period contains 31 actions across 27 awards and 4 newly active prime contractors. The preceding period contained 10 active prime contractors and 28 awards.
Reported funding office
LOWER COLORADO REGIONAL OFFICE
#41Down 30 from #11Latest 12 months
$312K
0.16% of positive obligations
Versus preceding 12 months
−$2.2M
5 active prime contractors · 8 awards
View office comparison and evidence
Reported obligations decreased 87.4% from $2.5M to $312K. The office’s share of positive obligations moved from 1.4% to 0.16%, a change of −1.3 percentage points.
The latest period contains 10 actions across 8 awards and 4 newly active prime contractors. The preceding period contained 2 active prime contractors and 6 awards.
Reported funding office
IMR INTERMOUNTAIN REGION(1200)
#57Down 40 from #17Latest 12 months
$63K
0.030% of positive obligations
Versus preceding 12 months
−$1.8M
5 active prime contractors · 7 awards
View office comparison and evidence
Reported obligations decreased 96.7% from $1.9M to $63K. The office’s share of positive obligations moved from 1.1% to 0.030%, a change of −1.0 percentage points.
The latest period contains 10 actions across 7 awards and 1 newly active prime contractor. The preceding period contained 7 active prime contractors and 21 awards.
Reported funding office
EROS DATA CENTER(00012)
No positive-obligation rankLatest 12 months
$0
0% of positive obligations
Versus preceding 12 months
−$6.1M
0 active prime contractors · 0 awards
View office comparison and evidence
Reported obligations decreased 100.0% from $6.1M to $0. The office’s share of positive obligations moved from 3.4% to 0%, a change of −3.4 percentage points.
The latest period contains 0 actions across 0 awards. The preceding period contained 2 active prime contractors and 4 awards.
How this work is bought
Reported award structure, competition, pricing, work categories, and contracting channels for engineering services at the Department of the Interior.
During Jul 28, 2025–Jul 27, 2026, this market recorded $204.9M in positive net award obligations across 488 awards. The leading reported procedure, Subject To Multiple Award Fair Opportunity, accounted for 70.7% of that positive-obligation base. Awards with a reported parent IDV accounted for 96.2%.
- Leading award type
- 94.6%
- Delivery Order
- Leading reported procedure
- 70.7%
- Subject To Multiple Award Fair Opportunity
- Reported parent IDV
- 96.2%
- of positive obligations had a reported parent IDV
- Median reported offers
- 1
- 378 of 488 awards reported offers
Buying method changes
Compared with Jul 28, 2024–Jul 27, 2025. Based on 488 current awards and 598 preceding awards with positive net obligations.
- Subject To Multiple Award Fair Opportunity obligation share
- 70.7%
- Up from 60.7% 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 7.6 percentage points higher, reported full-and-open obligation share is 4.8 percentage points higher, delivery-order obligation share is 22.5 percentage points higher, and median positive award obligations are 61.8% lower.
| Measure | This market | Peer median | Difference |
|---|---|---|---|
| Parent-IDV obligation share | 96.2% | 88.6% | +7.6 pts |
| Reported full-and-open obligation share | 61.4% | 56.7% | +4.8 pts |
| Delivery-order obligation share | 94.6% | 72.0% | +22.5 pts |
| Median positive award obligations | $136K | $356K | -61.8% |
Peer cohort and comparison limits
The peer median gives each of the 15 eligible agency markets equal weight. The included agency markets are:
- Department of Agriculture (USDA)
- Department of Commerce (COMMERCE)
- Department of Defense (DOD)
- Department of Energy (DOE)
- Department of Health and Human Services (HHS)
- Department of Homeland Security (DHS)
- Department of Justice (DOJ)
- Department of State (STATE)
- Department of the Treasury (TREASURY)
- Department of Transportation (TRANSPORTATION)
- Department of Veterans Affairs (VA)
- Environmental Protection Agency (EPA)
- General Services Administration (GSA)
- National Aeronautics and Space Administration (NASA)
- United States Agency for International Development (USAID)
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 value | Awards | Positive obligations | Share |
|---|---|---|---|
| Delivery Order(C) | 421 | $193.8M | 94.6% |
| Definitive Contract(D) | 18 | $4.2M | 2.0% |
| Purchase Order(B) | 29 | $3.6M | 1.8% |
| BPA Call(A) | 20 | $3.3M | 1.6% |
Reported parent-award types
| Reported value | Awards | Positive obligations | Share |
|---|---|---|---|
| IDC(B) | 371 | $179.3M | 87.5% |
| FSS(C) | 50 | $14.5M | 7.1% |
| BPA(E) | 20 | $3.3M | 1.6% |
| Not reported | 47 | $7.8M | 3.8% |
Single- or multiple-award parent structure
| Reported value | Awards | Positive obligations | Share |
|---|---|---|---|
| Multiple Award(M) | 332 | $143.4M | 70.0% |
| Single Award(S) | 109 | $53.7M | 26.2% |
| Not reported | 47 | $7.8M | 3.8% |
Solicitation procedures
| Reported value | Awards | Positive obligations | Share |
|---|---|---|---|
| Subject To Multiple Award Fair Opportunity(MAFO) | 339 | $144.9M | 70.7% |
| Architect-Engineer FAR 6.102(AE) | 86 | $34.5M | 16.8% |
| Negotiated Proposal/Quote(NP) | 8 | $12.9M | 6.3% |
| Two Step(TS) | 15 | $5.8M | 2.8% |
| Simplified Acquisition(SP1) | 25 | $3.7M | 1.8% |
| Only One Source(SSS) | 15 | $3.1M | 1.5% |
Extent competed
| Reported value | Awards | Positive obligations | Share |
|---|---|---|---|
| Full And Open Competition(A) | 234 | $125.9M | 61.4% |
| Full And Open Competition After Exclusion Of Sources(D) | 214 | $72.2M | 35.2% |
| Competed Under SAP(F) | 19 | $3.6M | 1.7% |
| Not Competed(C) | 12 | $2.9M | 1.4% |
| Not Available For Competition(B) | 3 | $183K | 0.090% |
| Not Competed Under SAP(G) | 6 | $132K | 0.060% |
Fair-opportunity and limited-source reporting
| Reported value | Awards | Positive obligations | Share |
|---|---|---|---|
| Fair Opportunity Given(FAIR) | 256 | $126.7M | 61.9% |
| Competitive Set Aside(CSA) | 38 | $8.2M | 4.0% |
| Follow-On Action Following Competitive Initial Action(FOO) | 23 | $7.7M | 3.8% |
| Only One Source - Other(ONE) | 14 | $1.3M | 0.66% |
| Other Statutory Authority(OSA) | 8 | $949K | 0.46% |
| Not reported | 149 | $60.0M | 29.3% |
Other-than-full-and-open reasons
| Reported value | Awards | Positive obligations | Share |
|---|---|---|---|
| Unique Source (FAR 6.302-1(B)(1))(UNQ) | 1 | $1.4M | 0.70% |
| Only One Source-Other (FAR 6.302-1 Other)(ONE) | 10 | $1.4M | 0.66% |
| Authorized By Statute (FAR 6.302-5(A)(2)(I))(OTH) | 3 | $183K | 0.090% |
| Follow-On Contract (FAR 6.302-1(A)(2)(Ii/Iii))(FOC) | 1 | $140K | 0.070% |
| SAP Non-Competition (FAR 13)(SP2) | 5 | $130K | 0.060% |
| Less Than Or Equal To The Micro-Purchase Threshold(MPT) | 1 | $2K | 0% |
| Not reported | 467 | $201.7M | 98.4% |
Contract pricing types
| Reported value | Awards | Positive obligations | Share |
|---|---|---|---|
| Firm Fixed Price(J) | 470 | $184.9M | 90.2% |
| Cost Plus Award Fee(R) | 2 | $12.1M | 5.9% |
| Time And Materials(Y) | 7 | $5.5M | 2.7% |
| Labor Hours(Z) | 5 | $1.7M | 0.82% |
| Fixed Price Level Of Effort(B) | 2 | $366K | 0.18% |
| Fixed Price Award Fee(M) | 1 | $221K | 0.11% |
| Other reported values | 1 | $132K | 0.064% |
Product or Service Codes
| Reported value | Awards | Positive obligations | Share |
|---|---|---|---|
| Architect And Engineering- General: Landscaping, Interior Layout, And Designing(C211) | 153 | $57.0M | 27.8% |
| Architect And Engineering- General: Other(C219) | 60 | $37.9M | 18.5% |
| Architect And Engineering- General: Engineering Drafting, Not Cad/Cam(C212) | 92 | $37.2M | 18.1% |
| Support- Professional: Engineering/Technical(R425) | 15 | $16.7M | 8.2% |
| Architect And Engineering- Construction: Dams(C1KA) | 13 | $12.1M | 5.9% |
| Special Studies/Analysis- Building Technology(B540) | 2 | $9.6M | 4.7% |
| Other reported values | 153 | $34.4M | 16.8% |
Awarding subagencies
| Reported value | Awards | Positive obligations | Share |
|---|---|---|---|
| National Park Service(1443) | 268 | $84.1M | 41.0% |
| Bureau of Indian Affairs and Bureau of Indian Education(1450) | 33 | $36.4M | 17.8% |
| Bureau of Reclamation(1425) | 43 | $32.3M | 15.7% |
| U.S. Geological Survey(1434) | 21 | $16.4M | 8.0% |
| U.S. Fish and Wildlife Service(1448) | 61 | $13.6M | 6.7% |
| Departmental Offices(1406) | 10 | $11.6M | 5.6% |
| Other reported values | 52 | $10.7M | 5.2% |
Awarding offices
| Reported value | Awards | Positive obligations | Share |
|---|---|---|---|
| Dsc Contracting Services Division(140P20) | 138 | $64.4M | 31.4% |
| Bureau Of Indian Affairs(140A16) | 24 | $32.1M | 15.7% |
| Great Plains Regional Office(140R60) | 3 | $19.2M | 9.4% |
| Ofc Of Acqusition Grants-National(140G01) | 12 | $15.7M | 7.7% |
| Ibc Acq Svcs Directorate (00004)(140D04) | 10 | $11.6M | 5.6% |
| Fws, Gaoa(140FGA) | 31 | $7.2M | 3.5% |
| Other reported values | 270 | $54.8M | 26.7% |
Reported parent IDVs
| Reported value | Awards | Positive obligations | Share |
|---|---|---|---|
| 140F0822D0234(1448) | 4 | $19.7M | 9.6% |
| ING17PC00017(1434) | 2 | $12.1M | 5.9% |
| 140P2023D0006(1443) | 5 | $8.2M | 4.0% |
| 140A1624D0019(1450) | 2 | $8.0M | 3.9% |
| DEAM3609GO29029(8900) | 1 | $6.1M | 3.0% |
| 140P2023D0008(1443) | 8 | $5.9M | 2.9% |
| 140A1624D0033(1450) | 1 | $5.8M | 2.9% |
| 140F0822D0274(1448) | 2 | $5.8M | 2.8% |
| Other reported values | 416 | $125.4M | 61.2% |
| Not reported | 47 | $7.8M | 3.8% |
Exactly matched vehicle usage
$2.7M · 1.3%
- NW IDIQ
12 awards · 6 matched parent PIIDs
Evidence: 140P2021D0001, 140P2021D0002, 140P2021D0003, 140P2021D0004, 140P2021D0005, …
$2.5M · 1.2%
- TACCOM II
8 awards · 4 matched parent PIIDs
Evidence: 70B04C19D00000035, 70B04C19D00000041, 70B04C19D00000042, 70B04C19D00000043
$2.0M · 0.99%
$1.9M · 0.95%
26 awards matched an unambiguous catalog vehicle PIID. Company membership is not used as evidence of award-channel usage.
Offers, award size, and timing
- Median reported offers
- 1 median
- 378 reported · 110 not reported
- Positive award obligations
- $136K median
- $53K–$296K middle 50%
- Reported performance period
- 405 days (~13 months) median
- 488 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 Jul 27, 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.
Prime contractors for engineering services at the Department of the Interior
Latest 12-month concentration and complete prime contractor rankings across the period shown.
- Prime contractor concentration
- 41 of 180prime contractors account for at least 80% of positive obligations in the last 12 months
- Largest prime contractor
- 10.1%of positive obligations in the last 12 months
- Leading four prime contractors
- 25.7%of positive obligations in the last 12 months
- Leading eight prime contractors
- 39.5%of positive obligations in the last 12 months
Based on $200.1M in positive obligations during the 12 months ending Jul 27, 2026. Individual shares and movement appear in the searchable rankings below. Movement compares with Jul 28, 2024–Jul 27, 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.
- #1
Last 12mo obligations
$20.2M
10.1%
Dollar movement
+$19.9M
vs. prior 12 months
Last 12mo awards
6 awards
10 actions
Historical and award details for FORSGREN ASSOCIATES INC
- Obligations: prior → latest
- $230K → $20.2M
- +8660.1%
- Share: prior → latest
- 0.13% → 10.1%
- +9.9 percentage points
- All-period obligations
- $21.6M
- 2.0% of all-period positive obligations · 16 awards
- Recorded activity
- Since Mar 9, 2022
- through Jul 2, 2026
Award reporting
Latest and prior 12-month award reporting Reported award evidence Latest Prior Reported set-aside 0 0 Reported no set-aside 0 0 Not reported 6 6 Reported small business 6 6 All-period set-aside types
None reported.
- #2
Last 12mo obligations
$11.7M
5.8%
Dollar movement
−$3.8M
vs. prior 12 months
Last 12mo awards
6 awards
9 actions
Historical and award details for GENERAL DYNAMICS MISSION SYSTEMS, INC.
- Obligations: prior → latest
- $15.5M → $11.7M
- −24.5%
- Share: prior → latest
- 8.7% → 5.8%
- −2.9 percentage points
- All-period obligations
- $79.7M
- 7.4% of all-period positive obligations · 16 awards
- Recorded activity
- Since Oct 26, 2021
- through Jul 15, 2026
Award reporting
Latest and prior 12-month award reporting Reported award evidence Latest Prior Reported set-aside 0 0 Reported no set-aside 0 0 Not reported 6 5 Reported small business 0 0 All-period set-aside types
None reported.
- #3
Last 12mo obligations
$11.0M
5.5%
Dollar movement
+$10.4M
vs. prior 12 months
Last 12mo awards
5 awards
9 actions
Historical and award details for DOWL, LLC
- Obligations: prior → latest
- $572K → $11.0M
- +1826.2%
- Share: prior → latest
- 0.32% → 5.5%
- +5.2 percentage points
- All-period obligations
- $25.2M
- 2.4% of all-period positive obligations · 14 awards
- Recorded activity
- Since Nov 3, 2021
- through Jul 24, 2026
Award reporting
Latest and prior 12-month award reporting Reported award evidence Latest Prior Reported set-aside 0 0 Reported no set-aside 0 0 Not reported 5 6 Reported small business 0 0 All-period set-aside types
None reported.
- #4
Last 12mo obligations
$8.6M
4.3%
Dollar movement
+$1.3M
vs. prior 12 months
Last 12mo awards
31 awards
48 actions
Historical and award details for AECOM TECHNICAL SERVICES, INC.
- Obligations: prior → latest
- $7.3M → $8.6M
- +18.2%
- Share: prior → latest
- 4.1% → 4.3%
- +0.2 percentage points
- All-period obligations
- $37.1M
- 3.5% of all-period positive obligations · 82 awards
- Recorded activity
- Since Oct 13, 2021
- through Jul 20, 2026
Award reporting
Latest and prior 12-month award reporting Reported award evidence Latest Prior Reported set-aside 0 0 Reported no set-aside 0 0 Not reported 31 33 Reported small business 0 0 All-period set-aside types
None reported.
- #5
Last 12mo obligations
$8.0M
4.0%
Dollar movement
+$4.1M
vs. prior 12 months
Last 12mo awards
13 awards
19 actions
Historical and award details for JACOBS GOVERNMENT SERVICES COMPANY
- Obligations: prior → latest
- $3.9M → $8.0M
- +103.2%
- Share: prior → latest
- 2.2% → 4.0%
- +1.8 percentage points
- All-period obligations
- $55.9M
- 5.2% of all-period positive obligations · 52 awards
- Recorded activity
- Since Nov 2, 2021
- through Jun 24, 2026
Award reporting
Latest and prior 12-month award reporting Reported award evidence Latest Prior Reported set-aside 0 0 Reported no set-aside 0 0 Not reported 13 22 Reported small business 0 0 All-period set-aside types
None reported.
- #6
Last 12mo obligations
$7.5M
3.8%
Dollar movement
−$8.7M
vs. prior 12 months
Last 12mo awards
26 awards
46 actions
Historical and award details for HDR ENGINEERING, INC.
- Obligations: prior → latest
- $16.2M → $7.5M
- −53.6%
- Share: prior → latest
- 9.2% → 3.8%
- −5.4 percentage points
- All-period obligations
- $74.0M
- 6.9% of all-period positive obligations · 121 awards
- Recorded activity
- Since Oct 6, 2021
- through Jul 24, 2026
Award reporting
Latest and prior 12-month award reporting Reported award evidence Latest Prior Reported set-aside 0 0 Reported no set-aside 0 2 Not reported 26 34 Reported small business 0 0 All-period set-aside types
None reported.
- #7
Last 12mo obligations
$6.1M
3.0%
Dollar movement
+$352K
vs. prior 12 months
Last 12mo awards
1 award
7 actions
Historical and award details for AMERESCO INC
- Obligations: prior → latest
- $5.7M → $6.1M
- +6.1%
- Share: prior → latest
- 3.2% → 3.0%
- −0.2 percentage points
- All-period obligations
- $26.1M
- 2.4% of all-period positive obligations · 1 award
- Recorded activity
- Since Oct 28, 2021
- through Jul 22, 2026
Award reporting
Latest and prior 12-month award reporting Reported award evidence Latest Prior Reported set-aside 0 0 Reported no set-aside 0 0 Not reported 1 1 Reported small business 0 0 All-period set-aside types
None reported.
- #8
Last 12mo obligations
$5.8M
2.9%
Dollar movement
+$4.6M
vs. prior 12 months
Last 12mo awards
4 awards
10 actions
Historical and award details for BARR ENGINEERING CO.
- Obligations: prior → latest
- $1.3M → $5.8M
- +359.3%
- Share: prior → latest
- 0.72% → 2.9%
- +2.2 percentage points
- All-period obligations
- $8.2M
- 0.77% of all-period positive obligations · 17 awards
- Recorded activity
- Since Oct 27, 2021
- through Jun 29, 2026
Award reporting
Latest and prior 12-month award reporting Reported award evidence Latest Prior Reported set-aside 0 0 Reported no set-aside 0 0 Not reported 4 4 Reported small business 0 0 All-period set-aside types
None reported.
- #9
Last 12mo obligations
$5.8M
2.9%
Dollar movement
+$4.7M
vs. prior 12 months
Last 12mo awards
2 awards
2 actions
Historical and award details for MSMM HUITT-ZOLLARS A JOINT VENTURE LLC
- Obligations: prior → latest
- $1.0M → $5.8M
- +462.6%
- Share: prior → latest
- 0.58% → 2.9%
- +2.3 percentage points
- All-period obligations
- $6.8M
- 0.63% of all-period positive obligations · 2 awards
- Recorded activity
- Since Sep 20, 2024
- through Jun 11, 2026
Award reporting
Latest and prior 12-month award reporting Reported award evidence Latest Prior Reported set-aside 0 0 Reported no set-aside 0 0 Not reported 2 1 Reported small business 2 1 All-period set-aside types
None reported.
- #10
Last 12mo obligations
$4.7M
2.4%
Dollar movement
−$2.1M
vs. prior 12 months
Last 12mo awards
25 awards
39 actions
Historical and award details for OTAK, INC.
- Obligations: prior → latest
- $6.8M → $4.7M
- −30.7%
- Share: prior → latest
- 3.9% → 2.4%
- −1.5 percentage points
- All-period obligations
- $29.4M
- 2.7% of all-period positive obligations · 56 awards
- Recorded activity
- Since Jan 7, 2022
- through Jul 21, 2026
Award reporting
Latest and prior 12-month award reporting Reported award evidence Latest Prior Reported set-aside 0 0 Reported no set-aside 0 0 Not reported 25 33 Reported small business 0 0 All-period set-aside types
None reported.
- #11
Last 12mo obligations
$4.6M
2.3%
Dollar movement
−$5.1M
vs. prior 12 months
Last 12mo awards
36 awards
61 actions
Historical and award details for STANTEC CONSULTING SERVICES INC.
- Obligations: prior → latest
- $9.7M → $4.6M
- −52.7%
- Share: prior → latest
- 5.5% → 2.3%
- −3.2 percentage points
- All-period obligations
- $42.5M
- 4.0% of all-period positive obligations · 82 awards
- Recorded activity
- Since Dec 30, 2021
- through Jul 22, 2026
Award reporting
Latest and prior 12-month award reporting Reported award evidence Latest Prior Reported set-aside 0 0 Reported no set-aside 0 1 Not reported 36 62 Reported small business 0 0 All-period set-aside types
None reported.
- #12
Last 12mo obligations
$4.5M
2.2%
Dollar movement
+$1.3M
vs. prior 12 months
Last 12mo awards
12 awards
19 actions
Historical and award details for HENNEBERY EDDY ARCHITECTS, INC.
- Obligations: prior → latest
- $3.1M → $4.5M
- +41.8%
- Share: prior → latest
- 1.8% → 2.2%
- +0.5 percentage points
- All-period obligations
- $16.6M
- 1.6% of all-period positive obligations · 42 awards
- Recorded activity
- Since May 4, 2022
- through Jul 16, 2026
Award reporting
Latest and prior 12-month award reporting Reported award evidence Latest Prior Reported set-aside 0 0 Reported no set-aside 0 0 Not reported 12 14 Reported small business 0 0 All-period set-aside types
None reported.
- #13
Last 12mo obligations
$4.4M
2.2%
Dollar movement
+$4.4M
vs. prior 12 months
Last 12mo awards
3 awards
4 actions
Historical and award details for JACOBS GOVERNMENT SERVICES COMPANY
- Obligations: prior → latest
- $0 → $4.4M
- Not comparable
- Share: prior → latest
- 0% → 2.2%
- +2.2 percentage points
- All-period obligations
- $4.4M
- 0.41% of all-period positive obligations · 3 awards
- Recorded activity
- Since May 14, 2026
- through Jun 25, 2026
Award reporting
Latest and prior 12-month award reporting Reported award evidence Latest Prior Reported set-aside 0 0 Reported no set-aside 0 0 Not reported 3 0 Reported small business 0 0 All-period set-aside types
None reported.
- #14
Last 12mo obligations
$4.3M
2.1%
Dollar movement
+$67K
vs. prior 12 months
Last 12mo awards
2 awards
2 actions
Historical and award details for SIEMENS GOVERNMENT TECHNOLOGIES INC
- Obligations: prior → latest
- $4.2M → $4.3M
- +1.6%
- Share: prior → latest
- 2.4% → 2.1%
- −0.2 percentage points
- All-period obligations
- $22.0M
- 2.0% of all-period positive obligations · 4 awards
- Recorded activity
- Since Mar 14, 2022
- through Jun 1, 2026
Award reporting
Latest and prior 12-month award reporting Reported award evidence Latest Prior Reported set-aside 0 0 Reported no set-aside 0 0 Not reported 2 2 Reported small business 0 0 All-period set-aside types
None reported.
- #15
Last 12mo obligations
$4.0M
2.0%
Dollar movement
+$2.2M
vs. prior 12 months
Last 12mo awards
15 awards
32 actions
Historical and award details for CROFT AND ASSOCIATES, INC.
- Obligations: prior → latest
- $1.8M → $4.0M
- +118.4%
- Share: prior → latest
- 1.0% → 2.0%
- +1.0 percentage points
- All-period obligations
- $7.8M
- 0.73% of all-period positive obligations · 22 awards
- Recorded activity
- Since Sep 1, 2023
- through Jul 2, 2026
Award reporting
Latest and prior 12-month award reporting Reported award evidence Latest Prior Reported set-aside 0 0 Reported no set-aside 0 0 Not reported 15 8 Reported small business 15 8 All-period set-aside types
None reported.
Award activity for engineering services at the Department of the Interior
Recent contract actions with unusually large obligation changes or meaningful shifts in contractor and funding-office activity.
This action
+$19.0M
FORSGREN ASSOCIATES INC
GREAT PLAINS REGIONAL OFFICE
THIS TASK ORDER PROVIDES COMPREHENSIVE ARCHITECTURAL-ENGINEERING (A-E) DESIGN SERVICES FOR ARKANSAS VALLEY CONDUIT (AVC) CONTRACT 8, EXTENDING FROM REGULATING TANK 2 TO THE CITY OF LAMAR, COLORADO.
Why it stands out
The contractor climbed 96 positions in this market.
It now ranks #1 by positive obligations over the latest 12 months.
- Award net obligations
- $19.0M
- Share of 12-month positive obligations
- 9.5%
Supporting data
- Prime contractor
- #1 · 10.1% share
- up 96 ranks · +9.9 percentage points · $19.9M net increase; action accounted for 95.2%
- Funding office
- #3 · 9.7% attributed share
- up 13 ranks · +8.6 percentage points · $17.3M net increase; action exceeded it by $1.7M
This action
+$5.8M
BARR ENGINEERING CO.
BUREAU OF INDIAN AFFAIRS
2025 COMPREHENSIVE REVIEWS GROUP 2
Why it stands out
The contractor climbed 25 positions in this market.
It now ranks #8 by positive obligations over the latest 12 months.
- Award net obligations
- $5.8M
- Share of 12-month positive obligations
- 2.9%
Supporting data
- Prime contractor
- #8 · 2.9% share
- up 25 ranks · +2.2 percentage points · $4.6M net increase; action exceeded it by $1.3M
- Funding office
- #2 · 16.1% attributed share
- +6.5 percentage points · $15.0M net increase; action accounted for 38.8%
This action
+$5.7M
MSMM HUITT-ZOLLARS A JOINT VENTURE LLC
DSC CONTRACTING SERVICES DIVISION
EVER 290451 - REHAB PARKWIDE WATER/WASTEWATER (FLAMINGO DISTRICT) AT EVERGLADES NATIONAL PARK, FLORIDA ARCHITECTURAL AND ENGINEERING (A-E) SERVICES DESIGN DEVELOPMENT (DD) AND CONSTRUCTION DOCUMENTS (CD) TASK ORDER
Why it stands out
The contractor climbed 34 positions in this market.
It now ranks #9 by positive obligations over the latest 12 months.
- Award net obligations
- $5.7M
- Share of 12-month positive obligations
- 2.9%
Supporting data
- Prime contractor
- #9 · 2.9% share
- up 34 ranks · +2.3 percentage points · $4.7M net increase; action exceeded it by $971K
- Funding office
- #1 · 30.6% attributed share
- $8.9M net decline despite this positive action
This action
+$11.8M
GENERAL DYNAMICS MISSION SYSTEMS, INC.
OFC OF ACQUSITION GRANTS-NATIONAL
LANDSAT OPERATIONS TO 17 - OPERATIONS AND SUSTAINMENT
Why it stands out
A new award added obligations despite weaker contractor activity.
The action represented 5.9% of the market’s latest 12-month positive obligations while the contractor’s obligations fell $3.8M overall.
- Award net obligations
- $11.8M
- Share of 12-month positive obligations
- 5.9%
Supporting data
- Prime contractor
- #2 · 5.8% share
- $3.8M net decline despite this positive action
- Funding office
- #4 · 7.3% attributed share
- $1.8M net decline despite this positive action
This action
+$7.7M
JACOBS GOVERNMENT SERVICES COMPANY
DSC CONTRACTING SERVICES DIVISION
YOSE 196416 - A/E TITLE III SERVICES FOR EL PORTAL WASTEWATER TREATMENT FACILITY, YOSEMITE NATIONAL PARK, CA
Why it stands out
The contractor climbed 7 positions in this market.
It now ranks #5 by positive obligations over the latest 12 months.
- Award net obligations
- $7.7M
- Share of 12-month positive obligations
- 3.9%
Supporting data
- Funding office
- #1 · 30.6% attributed share
- $8.9M net decline despite this positive action
This action
+$3.5M
SIEMENS GOVERNMENT TECHNOLOGIES INC
NCR REGIONAL CONTRACTING(30000)
"EO 14398" THE PURPOSE OF THIS MODIFICATION IS TO MAKE YEAR 11 PAYMENT PHASE I AND II, CHANGE CONTRACTING OFFICER, AND UPDATE CLAUSES TO ENSURE COMPLIANCE WITH UPDATED FEDERAL GUIDANCE.
Why it stands out
This award grew while spending attributed to its office declined.
The modification added $3.5M while office-attributed obligations fell $378K overall.
- Award net obligations
- $42.4M
- Share of 12-month positive obligations
- 1.7%
Supporting data
- Funding office
- #11 · 1.8% attributed share
- $378K net decline despite this positive action
View recent award activity by date (10)
- Action+$4.3MAward net obligations$4.3M
- Action+$308KAward net obligations$4.2M
- Action+$228KAward net obligations$228K
- Action+$210KAward net obligations$210K
- Action+$549KAward net obligations$60.4M
- Action+$160KAward net obligations$160K
- Action+$134KAward net obligations$134K
- Action>−$1Award net obligations$392K
- Action+$323KAward net obligations$323K
- Action+$280KAward net obligations$280K
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Complete market indexes:
Same NAICS at other agencies:
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Reported obligations include contract actions from October 1, 2021 through July 27, 2026. Set-aside and business-size fields reflect award records, not a contractor's current eligibility.
Review data methodology