The Department of the Interior'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
| Quarter | Awards | Obligated | Change |
|---|---|---|---|
| Q1 FY2026 | 4 | $14.8M | — |
| Q2 FY2026 | 23 | $61.3M | +314% |
| Q3 FY2026 | 14 | $147.8M | +141% |
| Q4 FY2026 | 48 | $88.4M | -40% |
Federal fiscal quarters (Q1 = Oct–Dec). Awards are counted in the quarter they start; obligations are the award's obligated amount.
| # | Contractor | Obligated | Share |
|---|---|---|---|
| 1 | LLC RKS INFRASTRUCTURE | $103.3M | 33.1% |
| 2 | STONE & LIME IMPORTS, INC | $38.0M | 12.2% |
| 3 | MCMILLEN, INC. | $28.1M | 9.0% |
| 4 | TEHAMA TECHNICAL SERVICES, LLC | $15.9M | 5.1% |
| 5 | SNC TALLIMAT, LLC | $13.4M | 4.3% |
Registrations are rolled up to their corporate parent (USAspending parent UEI), so a company with several SAM registrations ranks once.
| Set-aside type | Obligated | Share |
|---|---|---|
| Small business set-aside | $136.9M | 66.8% |
| 8(a) | $4.8M | 2.3% |
| SDVOSB | $0 | 0.0% |
| WOSB / EDWOSB | $382K | 0.2% |
| HUBZone | $776K | 0.4% |
| Other (Indian economic enterprise, veteran, …) | $20.0M | 9.8% |
| No set-aside (full & open) | $42.1M | 20.5% |
Share of obligations on awards whose set-aside type is recorded — 66% 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.
Showing the 10 most recently posted of 22. Links open the notice on SAM.gov.
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.