Top DoD other heavy and civil engineering construction contractors
In the 12 months ending Oct 5, 2026, the Department of Defense obligated $10.2B in net prime contract dollars under NAICS 237990, up 48.3% from $6.9B in the preceding 12 months. 401 prime contractors received positive obligations, and 26 of them accounted for 80% of that spend.
Prime contracts funded by the Department of Defense. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
DoD publishes contract data to USAspending with a 90-day delay, so the most recent months understate DoD activity.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top DoD contractors for NAICS 237990
Ranked by positive obligations in the latest 12 months. Share is of all positive obligations in this market.
| # | Contractor | Latest 12 mo | Prior 12 mo | Share | Rank change |
|---|---|---|---|---|---|
| 1 | Thalle Construction Co Inc | $1.9B | $275.0M | 18.7% | ▲ 5 |
| 2 | Barnard Construction Company, Incorporated | $1.3B | $22.3M | 13.0% | ▲ 37 |
| 3 | Ferrovial Construccion PR, LLC | $1.1B | $0 | 10.5% | New |
| 4 | Pittman-Sealevel, L.L.C. | $419.7M | $0 | 4.1% | New |
| 5 | Thalle - Bauer LLC | $379.0M | $0 | 3.7% | New |
| 6 | Dragados/Hawaiian Dredging/Orion JV | $353.4M | $1.5B | 3.5% | ▼ 5 |
| 7 | Flatiron-Aecon Joint Venture | $320.2M | $0 | 3.1% | New |
| 8 | Kiewit-Alberici Siop Macc AJV | $289.9M | $228.8M | 2.8% | ▲ 1 |
| 9 | Forgen-Odin JV | $224.5M | $1.3M | 2.2% | ▲ 184 |
| 10 | C. J. Mahan Construction Company, LLC | $211.7M | $26.8M | 2.1% | ▲ 24 |
| 11 | NAN Inc | $183.3M | $232.3M | 1.8% | ▼ 3 |
| 12 | MEB General Contractors Inc | $167.5M | $8.0M | 1.6% | ▲ 70 |
| 13 | Manson Construction Co | $148.1M | $109.0M | 1.5% | — |
| 14 | Clark Construction Group LLC | $145.3M | $0 | 1.4% | New |
| 15 | C and C Joint Ventures LLC | $111.4M | $0 | 1.1% | New |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Thalle Construction Co Inc$275.0M → $1.9B (+$1.6B) · now #1
- Barnard Construction Company, Incorporated$22.3M → $1.3B (+$1.3B) · now #2
- Ferrovial Construccion PR, LLC$0 → $1.1B (+$1.1B) · now #3
Largest declines
- Dragados/Hawaiian Dredging/Orion JV$1.5B → $353.4M (−$1.1B) · now #6
- TPC-NAN a Joint Venture$579.1M → $27.0M (−$552.1M) · now #43
- Kiewit Infrastructure West Co$399.4M → $2.3M (−$397.1M) · now #183
New to this market
122 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Pittman-Sealevel, L.L.C. | Apr 2, 2026 | $419.7M |
| Thalle - Bauer LLC | Dec 18, 2025 | $379.0M |
| Flatiron-Aecon Joint Venture | Mar 24, 2026 | $320.2M |
| Clark Construction Group LLC | Feb 12, 2026 | $145.3M |
| C and C Joint Ventures LLC | Mar 23, 2026 | $111.4M |
| Desilva Gates Construction LLC | Jan 30, 2026 | $85.0M |
| Alberici Constructors Inc | Dec 22, 2025 | $68.2M |
| Big River Construction Inc | Mar 5, 2026 | $36.2M |
Where the money comes from
Funding sub-agencies within the Department of Defense, latest 12 months. The funding organization can differ from the office that runs the requirement.
| Funding sub-agency | Latest 12 mo | Prior 12 mo | Change |
|---|---|---|---|
| Department of the Army | $8.9B | $3.4B | Up $5.5B (163.7%) |
| Department of the Navy | $1.3B | $3.5B | Down $2.2B (62.3%) |
| Department of the Air Force | $41.0M | $29.4M | Up $11.6M (39.3%) |
| Defense Threat Reduction Agency | $1.1M | −$1.0M | Up $2.1M (203.9%) |
| Defense Advanced Research Projects Agency | $100K | $0 | New |
| U.S. Special Operations Command | $82K | $1.9M | Down $1.9M (95.8%) |
Potential recompetes
Large awards in this market whose current period of performance ends in the next 18 months. Treat these as research leads: options, extensions, and follow-on vehicles often change the timing.
| Award | Incumbent | Obligated | Current end |
|---|---|---|---|
| N6274223C1311 | Gilbane Federal TACMOR UTILITIES AND INFRASTRUCTURE | $123.4M | Dec 23, 2026 |
| N4008521C0009 | Bowen Engineering Corp CLIN 0001 | $119.6M | May 12, 2027 |
| W9127822C0017 | The Lane Construction Corporation TYNDALL AIR FORCE BASE SITE DEVELOPMENT AND INFRASTRUCTURE PHASE I & II | $361.6M | Jun 25, 2027 |
| W9123826CA002 | Desilva Gates Construction LLC CONTAINERIZED AMMUNITION HOLDING FACILITIES | $85.0M | Aug 19, 2027 |
| N6274223F4007 | Dragados/Hawaiian Dredging/Orion JV FY23 MCON PROJECT P-209, DRY DOCK 3 REPLACEMENT, JOINT BASE PEARL HARBOR HICKAM, HAWAII | $3.1B | Sep 30, 2027 |
| W912HY26CA008 | Orion Marine Construction, Inc. FY26 MOUTH OF COLORADO RIVER, TEXAS MAINTENANCE DREDGING WITH SARGENT BEACH BENEFICIAL USE PLACEMENT | $86.3M | Oct 21, 2027 |
| N4008525C0032 | Weeks-Cashman JV DESIGN-BID-BUILD CONSTRUCTION PROJECT FOR P1044 SUBMARINE PIER 31 EXTENSION AT NAVAL SUBMARINE BASE, NEW LONDON, GROTON, CONNECTICUT. | $87.8M | Nov 15, 2027 |
| W912HY23C0018 | Flatiron Dragados Constructors, Inc. DESIGN-BID-BUILD REINFORCEMENT OF EXISTING LEVEES FROM SABINE PASS TO GALVESTON BAY, PORT ARTHUR AND VICINITY JEFFERSON COUNTY, TEXAS FOR COASTAL STORM RISK MANAGEMENT AND… | $98.3M | Feb 5, 2028 |
| N4008522C0017 | RQ-Magann JV P-095 CONSTRUCTION OF PIER 3 | $323.7M | Feb 14, 2028 |
| W912EP22C0017 | Forgen-Odin JV CENTRAL EVERGLADES PLANNING PROJECT (CEPP) CONTRACT 11A, EVERGLADES AGRICULTURAL AREA (EAA) A-2 RESERVOIR FOUNDATION & CUTOFF WALL PROJECT | $225.7M | Mar 15, 2028 |
Common questions
Who are the top DoD contractors for NAICS 237990?
In the latest 12 months, Thalle Construction Co Inc ($1.9B), Barnard Construction Company, Incorporated ($1.3B), Ferrovial Construccion PR, LLC ($1.1B) received the most DoD obligations for other heavy and civil engineering construction.
How concentrated is this market?
The eight largest primes held 59.4% of positive obligations, and Thalle Construction Co Inc alone held 18.7%. 122 contractors won their first obligations in this market during the latest 12 months.
Are any large DoD NAICS 237990 contracts ending soon?
10 of the largest awards in this market reach their current end date in the next 18 months. The first is N6274223C1311 (Gilbane Federal, $123.4M obligated), ending Dec 23, 2026. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
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$5.2MFigures are net obligations on prime contracts (award types A–D) from USAspending.gov, grouped by funding agency and the NAICS code on each award. Net obligations include deobligations and corrections, so they can differ from positive-obligation totals. See methodology.
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