NAICS 237990 × Department of Defense

Other Heavy and Civil Engineering Construction contracts at the Department of Defense

The Department of Defense's NAICS 237990 (Other Heavy and Civil Engineering Construction) market: incumbents, spending trend, set-asides and open solicitations — from FY2026 USAspending awards and live SAM.gov notices.

Contract data as of Oct 18, 2026 (USAspending) · recent coverage verified weekly

Obligated · FY2026
$3.3B
Q4 FY2026 still arriving (DoD 90-day delay)
Contract awards · FY2026
348
new awards with a start date in the window
Open opportunities
276
active on SAM.gov now
Recompetes · next 12 months
212
$7.2B in expiring contracts
Share of all NAICS 237990 spending
83.9%
Share of Department of Defense spending
2.9%
SBA small-business size standard
$45M average annual receipts
Trend

Quarter over quarter

QuarterAwardsObligatedChange
Q1 FY2026156$1.5B—
Q2 FY2026111$1.2B-23%
Q3 FY202659$494.6M-57%
Q4 FY2026 · partial22$132.9M-73%

Federal fiscal quarters (Q1 = Oct–Dec). Awards are counted in the quarter they start; obligations are the award's obligated amount. The Department of Defense publishes contract awards to USAspending with a 90-day delay, so Q4 FY2026 is still missing most DoD awards — treat that quarter as incomplete, not as a spending decline.

Competition

Top contractors · FY2026

#ContractorObligatedAwardsShare
1THALLE - BAUER LLC$379.0M111.5%
2C. J. MAHAN CONSTRUCTION COMPANY, LLC$246.3M27.5%
3CLARK CONSTRUCTION LLC$167.2M15.1%
4MEB GENERAL CONTRACTORS INC$167.2M15.1%
5J. F. BRENNAN COMPANY, INC.$156.4M24.8%

Registrations are rolled up to their corporate parent (USAspending parent UEI), so a company with several SAM registrations ranks once.

Set-asides

Set-aside mix

Set-aside typeObligatedShare
Small business set-aside$389.2M13.3%
8(a)$120.1M4.1%
SDVOSB$12.5M0.4%
WOSB / EDWOSB$6.6M0.2%
HUBZone$11.9M0.4%
Other (Indian economic enterprise, veteran, …)$10.0%
No set-aside (full & open)$2.4B81.6%

Share of obligations on awards whose set-aside type is recorded — 89% of this market's dollars. Most USAspending bulk-archive records leave the field blank, so blank awards are excluded rather than counted as full & open.

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Showing the 10 most recently posted of 276. Links open the notice on SAM.gov.

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Source: USAspending.gov contract awards (prime awards with a start date from Oct 1, 2025 through Sep 30, 2026), SAM.gov contract opportunities, and SBA size standards. Recompetes are contracts whose final end date — options included — falls in the next 12 months. Figures are recomputed when a new USAspending load lands. See our data sources.