Photon Physics Services
Photon Physics Services is a small business in Rolling Hills Estates, CA registered on SAM.gov to bid on federal contracts. It has won about $4.5 million in federal prime contracts since fiscal year 2024, according to USAspending.gov's award records for its UEI.
- UEI
- ZJELEME8TYE9
- CAGE code
- 3W1D8
- SAM.gov registration
- Active
Federal contract history
| Fiscal year | Obligated, prime contracts |
|---|---|
| FY2024 | $2 million |
| FY2025 | $1.5 million |
| FY2026 (incomplete) | $952,640 |
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 ZJELEME8TYE9, 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: Department of Veterans Affairs ($4.5 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 |
|---|---|---|---|
| May 15, 2025 | Department of Veterans Affairs | Radiation oncology staffing services - valbhs | $97,854 |
| Apr 14, 2023 | Department of Veterans Affairs | Board certified therapeutic medical physicist services | $3.5 million |
| Nov 10, 2022 | Department of Veterans Affairs | EO14042 - radiation therapy technologists | $84,813 |
| Aug 26, 2022 | Department of Veterans Affairs | EO14042 - radiation therapy technologists | $111,563 |
| Aug 8, 2022 | Department of Veterans Affairs | 6 month extension supplemental agreement to add chief therapeutic medical physicist… | $10,000 |
| May 31, 2022 | Department of Veterans Affairs | 6 month extension supplemental agreement to add chief therapeutic medical physicist… | $631,084 |
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 | Photon Physics Services |
|---|---|
| Unique Entity ID (UEI) | ZJELEME8TYE9 |
| CAGE code | 3W1D8 |
| Location | Rolling Hills Estates, CA |
| SAM.gov registration | Active through Apr 9, 2027 |
| Business started | 2004 |
| Primary NAICS code | 621399: Offices of All Other Miscellaneous Health Practitioners |
| Website | www.pps4rt.com |
| How to contact | Through its website above. No phone or email in SAM.gov's public file. Search UEI ZJELEME8TYE9 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 ZJELEME8TYE9 () 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 Photon Physics Services is small under
On its SAM.gov registration, Photon Physics Services meets the SBA size standard for these industries, so it can bid on small business set-asides that use them.
- 621399 Offices of All Other Miscellaneous Health Practitioners
Open contracts in Photon Physics Services's NAICS codes
2 open federal opportunities on SAM.gov use one of Photon Physics Services's NAICS codes and may be open to it: no set-aside, or, in the code it is registered small under, a small business set-aside. Here are a few, those in its primary code first (none of these are in California right now), then the soonest due.
- Industry Day/RFI Physical Wellness Support
Due in 6 daysNov 12, 2026, 10:00 AM EST
- USMMA Medical, Dental, Counseling services
✦ This is Phase I of a two-phase buy, solicitation 6923G227R00002.
Due in 10 daysNov 16, 2026, 2:00 PM ESTThe AI summary flags this date. Check SAM.gov.
Similar small businesses
Other small businesses of a similar size with the same primary NAICS code (621399) that have won federal contracts in California:
- Interactive Medical Specialists Inc, Tiburon, CA
- Palo Alto Perfusion Services Inc, Atascadero, CA
- Golden Gate Perfusion, Inc., San Francisco, CA
- Evoked Potential LLC, San Francisco, CA
- Dan W. Hauben, Inc., Huntington Beach, CA
- Bulatao S Corporation, Carlsbad, 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 Apr 9, 2027. We'll email you 60, 30 and 7 days ahead, and if it lapses.
Frequently asked questions
What is Photon Physics Services's CAGE code?
Photon Physics Services's CAGE code is 3W1D8. The Defense Logistics Agency assigns CAGE codes when a business registers on SAM.gov.
What is Photon Physics Services's UEI?
Photon Physics Services's Unique Entity ID (UEI) is ZJELEME8TYE9. SAM.gov assigns the UEI, and it identifies the business across the federal government.
Is Photon Physics Services's SAM.gov registration active?
Yes, as of SAM.gov's public data from Nov 1, 2026, Photon Physics Services's registration is active through Apr 9, 2027. Registrations are renewed every year.
Is Photon Physics Services a small business?
Photon Physics Services is registered on SAM.gov as small under 1 NAICS code, including its primary code, 621399. 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.