Operating signal within 12 months from two or more independent sources.
What they make
All Other Miscellaneous Chemical Product and Preparation Manufacturing325998- phosphatase assays
- drug discovery
- PhosphoSens
- sensor peptide substrates
- reaction
- kinases
- phosphatases
NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026
Products
Where these came from
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Dupont Electronic Materials International, LLC | Marlborough | Other Basic Inorganic Chemical Manufacturing 325188 | ACTIVE | 1.2 KM |
| Solmetex LLC | Northborough | Dental Equipment and Supplies Manufacturing 339114 | ACTIVE | 4.1 KM |
| Rs Hughes CO INC | Marlborough | Hardware Manufacturing 332510 | LIKELY ACTIVE | 4.1 KM |
| Kayaku Advanced Materials INC | Westborough | All Other Basic Organic Chemical Manufacturing 325199 | ACTIVE | 5.6 KM |
| Gotham Ink of New England | Marlborough | Printing Ink Manufacturing 325910 | UNVERIFIED | 5.7 KM |
Also at this address
No other federal record shares this street address.
Where this record comes from
2 sources hold this plant, and 9 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.
- The company’s own websiteOPERATINGfirst seen JUL 2026 · last seen OCT 2026
- SAM.gov entity registrationOPERATINGRecord GFG1JEKZBVX5 · first seen AUG 2025 · last seen JUL 2026
IN MIDDLESEX COUNTY25 other plants share this one’s industry (Other Chemical Product and Preparation Manufacturing, NAICS 3259); 7 of them have a size band on record.
What each source says
Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.
- Name
- SAM.gov: ASSAYQUANT TECHNOLOGIES, INC. · JUL 2026
- Street address
- SAM.gov: 260 CEDAR HILL ST STE 1 · JUL 2026
- City
- SAM.gov: MARLBOROUGH · JUL 2026
- State
- SAM.gov: MA · JUL 2026
- Coordinates
- Census geocoder: 42.318684114549,-71.588918720713 · JUL 2026
- Website
- SAM.gov: www.assayquant.com · JUL 2026
- CAGE code
- SAM.gov: 7MEJ4 · JUL 2026
- SAM registration expires
- SAM.gov: 2027-07-07 · JUL 2026
- State business registration
- TX Comptroller: ASSAYQUANT TECHNOLOGIES, INC., registered with the Texas Comptroller of Public Accounts; Corporation; inactive