Top USDA environmental consulting services contractors
In the 12 months ending Oct 5, 2026, the Department of Agriculture obligated $24.7M in net prime contract dollars under NAICS 541620, up 114.0% from $11.5M in the preceding 12 months. 77 prime contractors received positive obligations, and 13 of them accounted for 80% of that spend.
Prime contracts funded by the Department of Agriculture. 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 USDA 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 | Alpha Facilities Solutions, LLC | $7.2M | $293K | 26.9% | ▲ 16 |
| 2 | SES Inc. | $3.1M | $1.3M | 11.6% | ▲ 1 |
| 3 | Mabbett & Associates, Inc. | $2.6M | $596K | 9.5% | ▲ 7 |
| 4 | The Sanborn Map Company, Inc. | $1.6M | $2.1M | 6.1% | ▼ 2 |
| 5 | Bluestone Environmental Group, Inc. | $1.3M | $724K | 5.0% | ▲ 2 |
| 6 | Dewberry Engineers Inc. | $1.1M | $1.2M | 4.2% | ▼ 2 |
| 7 | North Wind Resource Consulting LLC | $1.1M | $645K | 3.9% | ▲ 2 |
| 8 | Synergy Resource Solutions, Inc. | $748K | $0 | 2.8% | New |
| 9 | Terra Soil & Environmental Solutions LLC | $696K | $46K | 2.6% | ▲ 35 |
| 10 | Water, Civil and Environmental Incorporated | $632K | $710K | 2.4% | ▼ 2 |
| 11 | ZIA Engineering & Environmental Consultants LLC | $594K | $813K | 2.2% | ▼ 5 |
| 12 | Sundance Consultants, LLC | $445K | $0 | 1.7% | New |
| 13 | Woods Canyon Archaeological Consultants, Inc. | $435K | −$340K | 1.6% | New |
| 14 | Environmental Assessment Services, LLC | $400K | $0 | 1.5% | New |
| 15 | ERO Resources Corporation | $380K | −$8K | 1.4% | New |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Alpha Facilities Solutions, LLC$293K → $7.2M (+$6.9M) · now #1
- Clark Group, LLC, the−$2.9M → $0 (+$2.9M) · no latest-period obligations
- Mabbett & Associates, Inc.$596K → $2.6M (+$2.0M) · now #3
Largest declines
- Eastern Research Group Inc$3.2M → −$147 (−$3.2M) · no latest-period obligations
- Nakupuna Consulting LLC$1.1M → −$134K (−$1.2M) · no latest-period obligations
- Heartlands JV LLC$0 → −$761K (−$761K) · no latest-period obligations
New to this market
19 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Synergy Resource Solutions, Inc. | Apr 27, 2026 | $748K |
| Environmental Assessment Services, LLC | May 7, 2026 | $400K |
| Catherine Anne Schnurrenberger | Apr 16, 2026 | $270K |
| f3 Solutions LLC | Sep 28, 2026 | $183K |
| Tunnell Spangler & Associates Inc | May 26, 2026 | $180K |
| AFS-IEI JV, LLC | Jul 28, 2026 | $150K |
| Terrainworks, Inc. | Sep 29, 2026 | $91K |
| Timmons Group Inc | Jun 19, 2026 | $70K |
Where the money comes from
Funding sub-agencies within the Department of Agriculture, 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 |
|---|---|---|---|
| Agricultural Research Service | $8.2M | $971K | Up $7.3M (748.5%) |
| Natural Resources Conservation Service | $7.2M | $7.3M | Down $93K (1.3%) |
| Forest Service | $4.1M | $1.1M | Up $3.0M (282.7%) |
| Under Secretary for Farm and Foreign Agricultural Services | $2.3M | −$3.1M | Up $5.4M (176.1%) |
| Agricultural Marketing Service | $1.1M | $0 | New |
| Animal and Plant Health Inspection Service | $940K | $307K | Up $633K (206.0%) |
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 |
|---|---|---|---|
| 12FPC324F0064 | ZIA Engineering & Environmental Consultants LLC FY24 NEW MEXICO NRI, TRAINING, CALIBRATION, RANGE SEGMENTS AND BLM SEGMENTS FOR A BASE YEAR PLUS FOUR OPTIONS. | $1.7M | Apr 8, 2027 |
| 12444026F0043 | Mabbett & Associates, Inc. DANIEL BOONE NATIONAL FOREST OIL AND GAS WELL PLUGGING | $1.3M | May 31, 2027 |
| 12FPC124F0169 | SES Inc. NATIONAL RESOURCES INVENTORY (NRI) AND LOCAL DATA SURVEY INSTRUMENT (LDSI) DATA COLLECTION FOR NRCS SOUTH DAKOTA. | $1.7M | Sep 29, 2027 |
| 12639526F0958 | SES Inc. THIS IS A FIRM FIXED PRICE, PERFORMANCE BASED TASK ORDER FOR CONTRACTOR-PROVIDED REGULATORY ACTIVITY NON-PERSONAL SUPPORT SERVICES FOR COMPLIANCE AND ENFORCEMENT, ACCREDITATION,… | $1.1M | Sep 29, 2027 |
| 12FPC426F0052 | Dewberry Engineers Inc. BPA CALL #3 FOR LAND SURVEYOR SUPPORT FOR NRCS EPD | $1.1M | Sep 30, 2027 |
| 12441923F0154 | ERO Resources Corporation CNF - CON NITX7323 - WEST ZONE ASPEN SURVEY AND NEPA ANALYSIS | $1.1M | Dec 31, 2027 |
| 12RADA23F0006 | Solv LLC ENVIRONMENTAL REVIEW SUPPORT SERVICES FOR USDA RURAL UTILITIES SERVICE IN CONNECTION WITH THE INFLATION REDUCTION ACT | $18.2M | Feb 11, 2028 |
Common questions
Who are the top USDA contractors for NAICS 541620?
In the latest 12 months, Alpha Facilities Solutions, LLC ($7.2M), SES Inc. ($3.1M), Mabbett & Associates, Inc. ($2.6M) received the most USDA obligations for environmental consulting services.
How concentrated is this market?
The eight largest primes held 70.1% of positive obligations, and Alpha Facilities Solutions, LLC alone held 26.9%. 19 contractors won their first obligations in this market during the latest 12 months.
Are any large USDA NAICS 541620 contracts ending soon?
7 of the largest awards in this market reach their current end date in the next 18 months. The first is 12FPC324F0064 (ZIA Engineering & Environmental Consultants LLC, $1.7M obligated), ending Apr 8, 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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