Top DHS environmental consulting services contractors
In the 12 months ending Oct 5, 2026, the Department of Homeland Security obligated $212.7M in net prime contract dollars under NAICS 541620, up 321.8% from $50.4M in the preceding 12 months. 45 prime contractors received positive obligations, and 6 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 541620
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 | Vernadero Group Inc | $62.8M | $8.8M | 29.0% | ▲ 1 |
| 2 | Gulf South Research Corp | $47.5M | $15.8M | 21.9% | ▼ 1 |
| 3 | ECO & Associates, Inc. | $24.3M | $0 | 11.2% | New |
| 4 | Tierra Right of Way Services Ltd | $21.5M | $1.5M | 9.9% | ▲ 8 |
| 5 | CDM Federal Programs Corporation | $14.2M | −$11.7M | 6.5% | New |
| 6 | Sundance Consultants, LLC | $8.7M | $0 | 4.0% | New |
| 7 | Merrick & Company | $6.3M | $4.6M | 2.9% | ▼ 3 |
| 8 | LMI Consulting, LLC | $4.7M | $4.5M | 2.2% | ▼ 3 |
| 9 | Dawson MCG, Inc. | $4.7M | $4.4M | 2.2% | ▼ 3 |
| 10 | The Cadmus Group LLC | $4.6M | $879K | 2.1% | ▲ 5 |
| 11 | Agile Facilities Solutions, LLC | $2.9M | $0 | 1.4% | New |
| 12 | LRS Federal LLC | $2.8M | $1.5M | 1.3% | ▲ 1 |
| 13 | Brice Solutions, LLC | $2.8M | $2.1M | 1.3% | ▼ 4 |
| 14 | S C & a Inc | $2.6M | $800K | 1.2% | ▲ 2 |
| 15 | Solv LLC | $1.4M | $1.7M | 0.6% | ▼ 4 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Vernadero Group Inc$8.8M → $62.8M (+$54.0M) · now #1
- Gulf South Research Corp$15.8M → $47.5M (+$31.8M) · now #2
- CDM Federal Programs Corporation−$11.7M → $14.2M (+$25.9M) · now #5
Largest declines
- GV Henson Creek LLC$6.7M → $34K (−$6.6M) · now #33
- Signature Science LLC$3.2M → $0 (−$3.2M) · no latest-period obligations
- Verina-Renova JV LLC$2.4M → $44K (−$2.3M) · now #30
New to this market
15 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| ECO & Associates, Inc. | Jan 6, 2026 | $24.3M |
| Sundance Consultants, LLC | Apr 21, 2026 | $8.7M |
| Agile Facilities Solutions, LLC | Sep 30, 2026 | $2.9M |
| Pegasus Technical Services, Inc | Jan 12, 2026 | $75K |
| United States Coast Guard Academy Sponsored Programs and Research, Inc | Jan 13, 2026 | $69K |
| Elos Environmental, LLC | Dec 10, 2025 | $38K |
| Aarcher, Inc. | Apr 27, 2026 | $21K |
| Mass Tank Inspection Services LLC | Jul 6, 2026 | $20K |
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 |
|---|---|---|---|
| U.S. Customs and Border Protection | $174.5M | $37.2M | Up $137.3M (368.8%) |
| Federal Emergency Management Agency | $17.1M | −$10.6M | Up $27.8M (261.3%) |
| U.S. Coast Guard | $7.9M | $7.4M | Up $486K (6.5%) |
| Office of the Under Secretary for Science and Technology | $6.4M | $4.7M | Up $1.7M (37.1%) |
| U.S. Secret Service | $3.5M | $6.8M | Down $3.2M (47.8%) |
| U.S. Immigration and Customs Enforcement | $1.4M | $1.7M | Down $307K (18.1%) |
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 |
|---|---|---|---|
| 70RSAT24C00000001 | Merrick & Company CONTRACT AWARD FOR THE PLUM ISLAND ANIMAL DISEASE CENTER (PIADC) PLUM ISLAND CLOSURE AND SUPPORT (PICS) PROGRAM SCIENTIFIC, TECHNICAL AND ENGINEERING SUPPORT (STENS) PROJECT. | $14.9M | Jan 7, 2027 |
| 70FA6026F00000014 | CDM Federal Programs Corporation HAZARD MITIGATION ASSISTANCE NATIONAL TECHNICAL REVIEW SUPPORT SERVICES | $8.0M | Sep 20, 2027 |
| 70B01C25F00001075 | LMI Consulting, LLC TASK ORDER TO FUND OPTION PERIOD 1 FOR BPA 70B01C25A00000031. | $9.2M | Sep 29, 2027 |
| 70B01C26F00000530 | Gulf South Research Corp TASK ORDER FOR NATURAL AND CULTURAL RESOURCE MONITORING AT BORDER WALL CONSTRUCTION SEGMENT IN EL PASO SECTOR (EPT-5) | $7.8M | Dec 30, 2027 |
| 70B01C26F00000684 | ECO & Associates, Inc. TASK ORDER TO SUPPORT CULTURAL AND NATURAL RESOURCE MONITORING FOR THE CONSTRUCTION OF BORDER BARRIER IN SECTOR BBT-5. | $11.0M | Jan 30, 2028 |
| 70B01C26F00000072 | ECO & Associates, Inc. CONSTRUCTION MONITORS ALONG THE SOUTHWEST BORDER. | $8.4M | Jan 30, 2028 |
| 70B01C26F00000059 | Vernadero Group Inc CONSTRUCTION MONITORING SERVICES FOR TCA-2 BORDER BARRIER CONSTRUCTION. | $19.1M | Feb 11, 2028 |
| 70B01C26F00000215 | Gulf South Research Corp CULTURAL AND NATURAL RESOURCES MONITORING FOR BORDER WALL CONSTRUCTION SEGMENTS IN LAREDO SECTOR, LRT-1 AND LRT-2. | $9.7M | Mar 8, 2028 |
| 70B01C26F00000237 | Gulf South Research Corp CONSTRUCTION MONITORING SERVICES SW BORDER | $8.1M | Mar 30, 2028 |
| 70B01C26F00000178 | Tierra Right of Way Services Ltd CONSTRUCTION MONITORING SERVICES | $8.6M | Mar 30, 2028 |
Common questions
Who are the top DHS contractors for NAICS 541620?
In the latest 12 months, Vernadero Group Inc ($62.8M), Gulf South Research Corp ($47.5M), ECO & Associates, Inc. ($24.3M) received the most DHS obligations for environmental consulting services.
How concentrated is this market?
The eight largest primes held 87.7% of positive obligations, and Vernadero Group Inc alone held 29.0%. 15 contractors won their first obligations in this market during the latest 12 months.
Are any large DHS NAICS 541620 contracts ending soon?
10 of the largest awards in this market reach their current end date in the next 18 months. The first is 70RSAT24C00000001 (Merrick & Company, $14.9M obligated), ending Jan 7, 2027. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
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$19.1MFigures 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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