Top DHS site preparation contractors contractors
In the 12 months ending Oct 5, 2026, the Department of Homeland Security obligated $33.1M in net prime contract dollars under NAICS 238910, up 1211.5% from $2.5M in the preceding 12 months. 9 prime contractors received positive obligations, and 1 of them accounted for 80% of that spend.
Prime contracts funded by the Department of Homeland Security. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top DHS contractors for NAICS 238910
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 | Clark Construction Group LLC | $32.3M | $0 | 97.6% | New |
| 2 | General Mechanical Corporation | $456K | $0 | 1.4% | New |
| 3 | Paragon Environmental Services, LLC | $200K | $1.4M | 0.6% | ▼ 2 |
| 4 | Hana Engineers & Consultants LLC | $40K | $410K | 0.1% | ▼ 2 |
| 5 | Silent Securities, Inc. | $38K | $280K | 0.1% | ▼ 2 |
| 6 | Southern Covenant Construction LLC | $26K | $0 | 0.1% | New |
| 7 | Paradigm Marine, LLC | $15K | $0 | 0.1% | New |
| 8 | J. Campbell Sitework & Excavation LLC | $15K | $0 | 0.0% | New |
| 9 | JMG Ventures, LLC | $8K | $18K | 0.0% | ▲ 4 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Clark Construction Group LLC$0 → $32.3M (+$32.3M) · now #1
- General Mechanical Corporation$0 → $456K (+$456K) · now #2
- USR Federal Services LLC−$32K → $0 (+$32K) · no latest-period obligations
Largest declines
- Paragon Environmental Services, LLC$1.4M → $200K (−$1.2M) · now #3
- Hana Engineers & Consultants LLC$410K → $40K (−$371K) · now #4
- Silent Securities, Inc.$280K → $38K (−$242K) · now #5
New to this market
5 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Clark Construction Group LLC | Jan 2, 2026 | $32.3M |
| General Mechanical Corporation | Sep 4, 2026 | $456K |
| Southern Covenant Construction LLC | Sep 2, 2026 | $26K |
| Paradigm Marine, LLC | Aug 24, 2026 | $15K |
| J. Campbell Sitework & Excavation LLC | Jul 9, 2026 | $15K |
Where the money comes from
Funding sub-agencies within the Department of Homeland Security, 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 |
|---|---|---|---|
| Office of the Under Secretary for Management | $32.3M | $0 | New |
| U.S. Coast Guard | $597K | $906K | Down $309K (34.1%) |
| U.S. Customs and Border Protection | $200K | $1.6M | Down $1.4M (87.9%) |
Common questions
Who are the top DHS contractors for NAICS 238910?
In the latest 12 months, Clark Construction Group LLC ($32.3M), General Mechanical Corporation ($456K), Paragon Environmental Services, LLC ($200K) received the most DHS obligations for site preparation contractors.
How concentrated is this market?
The eight largest primes held 100.0% of positive obligations, and Clark Construction Group LLC alone held 97.6%. 5 contractors won their first obligations in this market during the latest 12 months.
Related markets
NAICS 238910 across all agencies
DoD · NAICS 238910
$55.5MVA · NAICS 238910
$20.9MUSDA · NAICS 238910
$13.6MInterior · NAICS 238910
$12.0MFigures 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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