PSC codes › B504
PSC B504 — Chemical/Biological Studies and Analysis: federal contracts
Buyers by office, new entrants and recompetes in FedSift →
Open solicitations
Open any solicitation for a free AI read of its package — deal-breakers and risks, each quoted from the page it came from. With a free account, FedSift also builds its compliance matrix.
Get new PSC B504 solicitations by email
We'll email you when new PSC B504 (Chemical/Biological Studies and Analysis) solicitations post on SAM.gov. The first email lists what is open right now (1), then at most once a week, only when something new posts. No account needed; unsubscribe in a click.
What PSC B504 covers
Description: Chemical/Biological Studies and Analysis
Official definition: GSA PSC Manual (PSC April 2025.xlsx), acquisition.gov/psc-manual. Category: Professional Services › Management Advisory Services.
Who is winning new PSC B504 work
Contractors ranked by obligations on awards that started FY2024–FY2027 to date.
| Contractor | Obligations | Awards |
|---|---|---|
| MERRICK & COMPANY | $70.9M | 3 |
| TECHLAW CONSULTANTS INC | $6.6M | 10 |
| ICF INCORPORATED, L.L.C. | $6.3M | 8 |
| PRESIDENT AND FELLOWS OF HARVARD COLLEGE | $2.5M | 1 |
| ENVIRONMENTAL ASSESSMENT SERVICES, LLC | $2.0M | 1 |
| EMERALD INNOVATIONS, INC. | $2.0M | 1 |
| SERCO INC | $1.8M | 12 |
| REGENTS OF THE UNIVERSITY OF MICHIGAN | $1.7M | 2 |
| UNIVERSITY OF EXETER | $1.4M | 2 |
| HKS INC | $1.3M | 1 |
How competitive is PSC B504?
- 45.6% of obligations on these awards were competed.
- 55.4% of competed awards that report offers drew a single offer (n=121).
- 8.9% went to small businesses.
- The five largest contractors hold 76.9% across 153 contractors.
NAICS codes used on PSC B504 awards
| NAICS | Industry | Share |
|---|---|---|
| 541380 | Testing Laboratories and Services | 69.4% |
| 541620 | Environmental Consulting Services | 13.2% |
| 541714 | Research and Development in Biotechnology (Except Nanobiotechnology) | 7.8% |
| 541690 | Other Scientific and Technical Consulting Services | 3.1% |
| 541990 | All Other Professional, Scientific, and Technical Services | 2.2% |
| 541715 | Research and Development in the Physical, Engineering, and Life Sciences (Except Nanotechnology and Biotechnology) | 1.3% |
| 621511 | Medical Laboratories | 0.8% |
| 541611 | Administrative Management and General Management Consulting Services | 0.8% |
Related PSC codes
R499 Other Professional Services · Q301 Reference Laboratory Testing · B529 Scientific Data Studies · AJ11 General Science and Technology R&D Services; General Science and Technology; Basic Research · AJ12 General Science and Technology R&D Services; General Science and Technology; Applied Research · R425 Engineering and Technical Services · 6640 Laboratory Equipment and Supplies · F999 Other Environmental Services, Studies, and Analytical Support
Win PSC B504 work with FedSift
- Matched to your company — PSC B504 solicitations ranked against your capabilities, NAICS and certifications, with a fit score for each
- A compliance matrix from the package — every requirement in the attachments, each cited to its page
- A pipeline that watches the dates — question cutoffs and response deadlines from what the notice states, amendments and new versions as they post
- The market behind the code — buyers by contracting office, who is entering, adjacent codes and contracts coming up for recompete
See the 1 open, ranked for you → or open PSC B504 intelligence
Free plan, no credit card. Browse without an account; sign in to match and track.