Polypeptide Laboratories San Diego, LLC
Polypeptide Laboratories San Diego, LLC (doing business as Polypeptide Labs) is a business in San Diego, CA registered on SAM.gov to bid on federal contracts. SAM.gov lists it as small under 3 NAICS codes. It has won about $1.3 million in federal prime contracts since fiscal year 2024, according to USAspending.gov's award records for its UEI, $61,825 of it on contracts where it counted as a small business.
- UEI
- KULKXN9J6PF9
- CAGE code
- 3HMK2
- SAM.gov registration
- Active
Federal contract history
| Fiscal year | Obligated, prime contracts |
|---|---|
| FY2024 | $313,453 |
| FY2025 | $25,656 |
| FY2026 (incomplete) | $916,000 |
FY2026 ended September 30, and its year-end contract reports and corrections are still arriving, so it's marked incomplete until about early January 2027.
These are every prime contract USAspending.gov records under UEI KULKXN9J6PF9, from its award search. For a company that is part of a parent company, USAspending's recipient page can show a different figure for a year, because it counts the company's own record and its parent's record separately.
Its biggest federal customers since fiscal year 2024: National Institutes of Health ($1.3 million).
Recent contract awards
New contracts, by the date each was first signed. Orders and changes to older contracts count in the yearly totals above but aren't listed here, and Defense awards appear 90 days after signing.
| Awarded | Agency | What it's for | Obligated |
|---|---|---|---|
| Sep 16, 2026 | National Institutes of Health | Manufacture of GMP batch H105A peptide | $601,000 |
| Sep 16, 2026 | National Institutes of Health | Process development and manufacture of AZM152 | $315,000 |
| Feb 14, 2025 | National Institutes of Health | Task order no.5. Synthesis and distribution of opioid and related peptides. Period of… | $595,094 |
| Aug 2, 2024 | National Institutes of Health | Nichd - storage and stability study of drug substances and products | $17,950 |
| Feb 13, 2024 | National Institutes of Health | Synthesis and distribution of opioid and related peptides. Period of performance:… | $598,190 |
| Feb 14, 2023 | National Institutes of Health | Synthesis and distribution of opioid and related peptides. Period of performance:… | $518,493 |
Figures are prime contract obligations reported to USAspending.gov. Work done as a subcontractor isn't included.
Registration details
Show registration details
From SAM.gov's monthly public file dated Nov 1, 2026. If the business has updated its registration since, SAM.gov shows the newer details.
| Legal business name | Polypeptide Laboratories San Diego, LLC |
|---|---|
| Doing business as | Polypeptide Labs |
| Unique Entity ID (UEI) | KULKXN9J6PF9 |
| CAGE code | 3HMK2 |
| Location | San Diego, CA |
| SAM.gov registration | Active through Jul 15, 2027 |
| Business started | 1986 |
| Primary NAICS code | 541714: Research and Development in Biotechnology (except Nanobiotechnology) |
| Website | www.polypeptide.com |
| How to contact | Through its website above. No phone or email in SAM.gov's public file. Search UEI KULKXN9J6PF9 in SBA's Small Business Search for a contact the business added. |
Certifications and business types
No SBA certification (8(a), HUBZone or WOSB) in SAM.gov's public file (Nov 1, 2026).
SBA certifications let a business compete for set-aside contracts (set-asides explained). Check the current record on its SAM.gov entry.
How to check or correct this record
The file sometimes leaves a certification out, and a newer one won't be in it yet.
Check or correct this record at the source: open its SAM.gov entry, or search UEI KULKXN9J6PF9 () in SAM.gov's entity search (free sign-in) and in SBA's Small Business Search (formerly DSBS), which shows SBA certifications. The business can update its details in its SAM.gov registration and its certifications at certifications.sba.gov.
NAICS codes Polypeptide Laboratories San Diego, LLC is small under
On its SAM.gov registration, Polypeptide Laboratories San Diego, LLC meets the SBA size standard for these industries, so it can bid on small business set-asides that use them.
Open contracts in Polypeptide Laboratories San Diego, LLC's NAICS codes
52 open federal opportunities on SAM.gov use one of Polypeptide Laboratories San Diego, LLC's NAICS codes and may be open to it: no set-aside, or, in the codes it is registered small under, a small business set-aside. Here are a few, those in its primary code first, then those in California, then the soonest due.
- Service request for specimen embedding and sectioning.
Due in 2 daysNov 9, 2026, 1:00 PM CST
- Quantitative Analysis of Longitudinal MR Images
✦ Sources sought notice 75N98027R00005: the National Institutes of Health, for the National Institute on Aging (NIA), asks firms to show they can process and measure 300 new brain…
Due in 2 daysNov 9, 2026, 9:00 AM EST
- Firefox
✦ DARPA's Biological Technologies Office wants small teams to build two pieces of a non-invasive, light-based brain-computer interface (the Firefox program): TA1, parts that steer…
Due Nov 9, 2026 (check date)3:00 PM ESTSAM.gov posted a newer version of this notice since our last load, due Nov 30, 2026, 10:00 AM EST. Check SAM.gov for the current date.
- DNA Sequencing Service
Due in 5 daysNov 12, 2026, 8:00 AM EST
- RFI Lupus Research Program (LRP) Public
✦ The Defense Health Agency, for the Congressionally Directed Medical Research Programs (CDMRP) Lupus Research Program, is asking the public for input on possible future lupus…
Due in 9 daysNov 16, 2026, 4:00 PM EST
Similar small businesses
Other small businesses of a similar size with the same primary NAICS code (541714) that have won federal contracts in California:
- Iggenix, Inc., South San Francisco, CA
- Doubleshot Inc, Santa Rosa, CA
- Dalton Bioanalytics Inc., Los Angeles, CA
- Invetech US LLC, San Diego, CA
- Exodus Bio Inc., San Jose, CA
- Synthego Holdings LLC, Redwood City, CA
Is this your business? Get a reminder before the SAM.gov registration expires
Get a reminder before the SAM.gov registration expires. It's active through Jul 15, 2027. We'll email you 60, 30 and 7 days ahead, and if it lapses.
Frequently asked questions
What is Polypeptide Laboratories San Diego, LLC's CAGE code?
Polypeptide Laboratories San Diego, LLC's CAGE code is 3HMK2. The Defense Logistics Agency assigns CAGE codes when a business registers on SAM.gov.
What is Polypeptide Laboratories San Diego, LLC's UEI?
Polypeptide Laboratories San Diego, LLC's Unique Entity ID (UEI) is KULKXN9J6PF9. SAM.gov assigns the UEI, and it identifies the business across the federal government.
Is Polypeptide Laboratories San Diego, LLC's SAM.gov registration active?
Yes, as of SAM.gov's public data from Nov 1, 2026, Polypeptide Laboratories San Diego, LLC's registration is active through Jul 15, 2027. Registrations are renewed every year.
Is Polypeptide Laboratories San Diego, LLC a small business?
Polypeptide Laboratories San Diego, LLC is registered on SAM.gov as small under 3 NAICS codes, including its primary code, 541714. Size is set per NAICS code, so a business can be small for some contracts and not others.
Keep going
- Look up another business's CAGE code or UEI
- Check a SAM.gov registration's status
- How to become a government subcontractor
- Hiring subcontractors? List small businesses by state, NAICS code and certification
Registration details come from SAM.gov's public entity extract and contract figures from USAspending.gov. Contact names and street addresses are left out. To change these details, update the registration on SAM.gov. To report a mistake on this page, or to ask us to remove it, email hello@fedready.us with the page address; we reply within 2 business days. For a removal, write from an address at the company.