Top EPA software publishers contractors
In the 12 months ending Oct 5, 2026, the Environmental Protection Agency obligated $21.0M in net prime contract dollars under NAICS 511210, down 22.0% from $26.9M in the preceding 12 months. 13 prime contractors received positive obligations, and 3 of them accounted for 80% of that spend.
Prime contracts funded by the Environmental Protection Agency. 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 EPA contractors for NAICS 511210
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 | Dell Federal Systems L.P | $13.8M | $20.0M | 65.9% | — |
| 2 | Unison Software Inc | $2.5M | $2.5M | 11.7% | — |
| 3 | Environmental Systems Research Institute, Inc. | $2.3M | $2.3M | 11.1% | — |
| 4 | Carahsoft Technology Corp | $837K | $666K | 4.0% | — |
| 5 | Earthsoft Inc | $592K | $428K | 2.8% | — |
| 6 | Unison Virtual Acquisition Office LLC | $205K | $284K | 1.0% | ▲ 1 |
| 7 | Fierce Software Corp | $201K | $129K | 0.9% | ▲ 2 |
| 8 | Wingswept, LLC | $196K | $186K | 0.9% | — |
| 9 | Clinisys, Inc. | $162K | $65K | 0.8% | ▲ 1 |
| 10 | Economic Systems Inc | $120K | $0 | 0.6% | New |
| 11 | Cision US Inc | $34K | $412K | 0.2% | ▼ 5 |
| 12 | Chemwatch Americas LLC | $28K | $0 | 0.1% | New |
| 13 | Kisters North America, Inc. | $5K | $5K | 0.0% | — |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Carahsoft Technology Corp$666K → $837K (+$171K) · now #4
- Earthsoft Inc$428K → $592K (+$165K) · now #5
- Economic Systems Inc$0 → $120K (+$120K) · now #10
Largest declines
- Dell Federal Systems L.P$20.0M → $13.8M (−$6.1M) · now #1
- Cision US Inc$412K → $34K (−$377K) · now #11
- Unison Software Inc$2.5M → $2.5M (−$85K) · now #2
New to this market
1 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Economic Systems Inc | Oct 31, 2025 | $120K |
Where the money comes from
Funding sub-agencies within the Environmental Protection Agency, 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 |
|---|---|---|---|
| Environmental Protection Agency | $21.0M | $26.9M | Down $5.9M (22.0%) |
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 |
|---|---|---|---|
| 68HERH21F0203 | Unison Software Inc CONTRACT TITLE: HOSTING AND RELATED SUPPORT FOR THE ENVIRONMENTAL PROTECTION AGENCY (EPA) ACQUISITION SYSTEM | $2.8M | Dec 31, 2026 |
| 68HERH22F0117 | Unison Software Inc PRISM SOFTWARE LICENSE & OPERATION AND MAINTENANCE (O&M) SUPPORT FOR THE OFFICE OF ACQUISITION SOLUTIONS (OAS) EPA ACQUISITION SYSTEM (EAS). | $11.0M | Dec 31, 2026 |
| 47QACA26F0177 | Environmental Systems Research Institute, Inc. ARC GEOGRAPHIC INFORMATION SYSTEMS (ARCGIS) SOFTWARE ENTERPRISE LICENSE AGREEMENT (ELA) | $9.5M | Sep 30, 2027 |
Common questions
Who are the top EPA contractors for NAICS 511210?
In the latest 12 months, Dell Federal Systems L.P ($13.8M), Unison Software Inc ($2.5M), Environmental Systems Research Institute, Inc. ($2.3M) received the most EPA obligations for software publishers.
How concentrated is this market?
The eight largest primes held 98.3% of positive obligations, and Dell Federal Systems L.P alone held 65.9%. 1 contractors won their first obligations in this market during the latest 12 months.
Are any large EPA NAICS 511210 contracts ending soon?
3 of the largest awards in this market reach their current end date in the next 18 months. The first is 68HERH21F0203 (Unison Software Inc, $2.8M obligated), ending Dec 31, 2026. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
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$55.8MFigures 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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