What EPA Buys
| Top Categories | Top 10 NAICS |
|---|---|
| Information Technology | 541512 – Computer Systems Design Services 541519 – Other Computer Related Services |
| Professional Services | 541620 – Environmental Consulting Services 541611 – Administrative Management and General Management Consulting Services |
| Facilities & Construction | 562910 – Remediation Services 237990 – Other Heavy and Civil Engineering Construction 541330 – Engineering Services 561210 – Facilities Support Services |
| Research & Development | 541990 – All Other Professional, Scientific, and Technical Services 541380 – Testing Laboratories |