Top HHS environmental consulting services contractors
In the 12 months ending Oct 5, 2026, the Department of Health and Human Services obligated $14.4M in net prime contract dollars under NAICS 541620, down 9.4% from $15.9M in the preceding 12 months. 17 prime contractors received positive obligations, and 5 of them accounted for 80% of that spend.
Prime contracts funded by the Department of Health and Human Services. 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 HHS 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 | Consolidated Safety Services Incorporated | $6.2M | $2.3M | 27.7% | ▲ 2 |
| 2 | Property & Environmental Management Inc | $4.3M | $3.1M | 19.1% | — |
| 3 | Stantec Consulting Services Inc. | $3.4M | $1.0M | 15.1% | ▲ 3 |
| 4 | Romem Aqua Systems Co Inc | $2.4M | $2.0M | 10.6% | — |
| 5 | ack3 Consulting, LLC | $2.2M | $1.3M | 9.7% | — |
| 6 | Eastern Research Group Inc | $1.5M | $622K | 6.8% | ▲ 1 |
| 7 | SRC Inc | $1.1M | −$12K | 4.8% | New |
| 8 | Global, Inc | $441K | $358K | 2.0% | — |
| 9 | The Cadmus Group LLC | $343K | $52K | 1.5% | ▲ 6 |
| 10 | Neptune and Company, Incorporated | $189K | $0 | 0.8% | New |
| 11 | Rural and Tribal Environmental Solutions, Inc | $173K | $93K | 0.8% | — |
| 12 | Specpro Professional Services, LLC | $151K | $0 | 0.7% | New |
| 13 | Keres Consulting Inc | $40K | $82K | 0.2% | — |
| 14 | Rural Community Assistance Corporation | $26K | $105K | 0.1% | ▼ 4 |
| 15 | Whitetail Environmental, LLC | $19K | $0 | 0.1% | New |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Consolidated Safety Services Incorporated$2.3M → $6.2M (+$3.9M) · now #1
- Stantec Consulting Services Inc.$1.0M → $3.4M (+$2.3M) · now #3
- Property & Environmental Management Inc$3.1M → $4.3M (+$1.1M) · now #2
Largest declines
- Nelson Engineering Co.$4.5M → $0 (−$4.5M) · no latest-period obligations
- Resource Management Group, Inc.$0 → −$3.9M (−$3.9M) · no latest-period obligations
- National Academy of Sciences$0 → −$2.2M (−$2.2M) · no latest-period obligations
New to this market
2 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Specpro Professional Services, LLC | Sep 25, 2026 | $151K |
| Whitetail Environmental, LLC | Jul 9, 2026 | $19K |
Where the money comes from
Funding sub-agencies within the Department of Health and Human Services, 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 |
|---|---|---|---|
| National Institutes of Health | $10.1M | $9.7M | Up $439K (4.5%) |
| Office of the Assistant Secretary for Financial Resources | $4.4M | $0 | New |
| Health Resources and Services Administration | $3.4M | $1.0M | Up $2.3M (225.3%) |
| Centers for Disease Control and Prevention | $1.4M | $1.1M | Up $263K (24.2%) |
| Office of Assistant Secretary for Preparedness and Response | $343K | $0 | New |
| Indian Health Service | $272K | $282K | Down $10K (3.5%) |
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 |
|---|---|---|---|
| 7571MN26F66001 | Property & Environmental Management Inc FEDERAL OCCUPATIONAL HEALTH (FOH) ENVIRONMENTAL HEALTH AND SAFETY SUPPORT (EHSS) SERVICES TASK ORDER 7571MN26F66001 BASE PERIOD OF PERFORMANCE: 4/20/2026-11/19/2026 | $3.8M | Nov 19, 2026 |
| 75P00123C00002 | Global, Inc SAFETY SUPPORT | $1.5M | Dec 31, 2026 |
| 75R60226F34013 | Stantec Consulting Services Inc. BPHC C 7376 ENVIRONMENTAL HISTORIC PRESERVATION (EHP) PRE AND POST AWARD REVIEWS | $1.9M | Jul 14, 2027 |
| 75R60223F34003 | Stantec Consulting Services Inc. OFAM78 C 4728. FY23 ENVIRONMENTAL EARMARKS BPA CALL ORDER. | $1.8M | Aug 2, 2027 |
| 75R60223F34005 | Stantec Consulting Services Inc. CALL ORDER 5 | $1.1M | Aug 31, 2027 |
| 75N98026F00446 | Consolidated Safety Services Incorporated INDUSTRIAL HYGIENE AND SAFETY SUPPORT SERVICES | $4.1M | Sep 28, 2027 |
| 75R60226F34015 | Stantec Consulting Services Inc. OFAAM78 C 6409 - ENVIRONMENTAL FOR CONSTRUCTION EARMARKS | $2.3M | Sep 29, 2027 |
Common questions
Who are the top HHS contractors for NAICS 541620?
In the latest 12 months, Consolidated Safety Services Incorporated ($6.2M), Property & Environmental Management Inc ($4.3M), Stantec Consulting Services Inc. ($3.4M) received the most HHS obligations for environmental consulting services.
How concentrated is this market?
The eight largest primes held 95.7% of positive obligations, and Consolidated Safety Services Incorporated alone held 27.7%. 2 contractors won their first obligations in this market during the latest 12 months.
Are any large HHS 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 7571MN26F66001 (Property & Environmental Management Inc, $3.8M obligated), ending Nov 19, 2026. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
Related markets
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$24.7MFigures 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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