Williams Building Company, Inc.
Williams Building Company, Inc. is a small business in Hyannis, MA registered on SAM.gov to bid on federal contracts. It has won about $8.4 million in federal prime contracts as a small business since fiscal year 2024, according to USAspending.gov.
- UEI
- R6EMCVYM26D3
- CAGE code
- 3LUW5
- SAM.gov registration
- Active
Federal contract history
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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 | Williams Building Company, Inc. |
|---|---|
| Unique Entity ID (UEI) | R6EMCVYM26D3 |
| CAGE code | 3LUW5 |
| Location | Hyannis, MA |
| SAM.gov registration | Active through Mar 31, 2027 |
| Business started | 2001 |
| Primary NAICS code | 236220: Commercial and Institutional Building Construction |
| Website | www.buildwithwilliams.com |
| How to contact | Through its website above. No phone or email in SAM.gov's public file. Search UEI R6EMCVYM26D3 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).
- Service-disabled veteran-owned (self-reported in SAM.gov)
- Veteran-owned (self-reported in SAM.gov)
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. Self-reported business types are what the firm says about itself on SAM.gov; they aren't SBA certifications. This page doesn't show SBA's VetCert certification for veteran-owned firms; SBA's search below does.
Check or correct this record at the source: open its SAM.gov entry, or search UEI R6EMCVYM26D3 () in SAM.gov's entity search (free sign-in) and in SBA's Small Business Search (formerly DSBS), which shows SBA certifications including VetCert. The business can update its details in its SAM.gov registration and its certifications at certifications.sba.gov.
NAICS codes Williams Building Company, Inc. is small under
On its SAM.gov registration, Williams Building Company, Inc. meets the SBA size standard for these industries, so it can bid on small business set-asides that use them.
- 236220 Commercial and Institutional Building Construction
- 236115 New Single-Family Housing Construction (except For-Sale Builders)
- 236118 Residential Remodelers
- 236210 Industrial Building Construction
- 237110 Water and Sewer Line and Related Structures Construction
- 237120 Oil and Gas Pipeline and Related Structures Construction
- 237130 Power and Communication Line and Related Structures Construction
- 237210 Land Subdivision
- 237310 Highway, Street, and Bridge Construction
- 237990 Other Heavy and Civil Engineering Construction
- 332311 Prefabricated Metal Building and Component Manufacturing
- 335311 Power, Distribution, and Specialty Transformer Manufacturing
- 812930 Parking Lots and Garages
Open contracts in Williams Building Company, Inc.'s NAICS codes
522 open federal opportunities on SAM.gov use one of Williams Building Company, Inc.'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 or one for a status it reports about itself on SAM.gov (service-disabled veteran-owned). Here are a few, those in its primary code first, then those in Massachusetts, then the soonest due.
Confirm eligibility first. Williams Building Company, Inc.'s service-disabled veteran-owned status is self-reported on SAM.gov, and this page can't confirm an SBA certification for it, so set-asides for it may be relevant but may not be open to it: SDVOSB and VOSB set-asides need SBA VetCert certification. That applies to these 2 notices below: “523A4-CSI-288 3.0T MRI Site Prep - Design Build West Roxbury VA Medical Center (VAMC_ West Roxbury, MA” and “657-27-103JB, FCA Replace Building 51 Roof, JB”. SBA's Small Business Search shows a firm's current certifications.
- USCG ISA Tenant Improvement Construction Project
✦ GSA is doing market research for a tenant fit-out for the U.S. Coast Guard Northeast District at the JFK Federal Building in Boston, MA, including a secure SCIF. This is a…
Due in 16 daysNov 23, 2026, 2:00 PM EST
- 523A4-CSI-288 3.0T MRI Site Prep - Design Build West Roxbury VA Medical Center (VAMC_ West Roxbury, MA
✦ Presolicitation: only service-disabled veteran-owned small businesses (SDVOSBs) can bid on this design-build project, which the Department of Veterans Affairs Program Contracting…
Expected Nov 27, 2026When the solicitation is expected, not a bid deadline.
- Hanscom’s Execution & Rapid Operations (HERO) Umbrella Program Notice
Due Sep 29, 2027End of day (12:00 AM Sep 30 EDT)
- Building 143 Concrete Scale Pad Expansion and Dock Leveler Replacement
Due in 2 daysNov 9, 2026, 10:00 AM EST
- 657-27-103JB, FCA Replace Building 51 Roof, JB
✦ This is a sources sought notice, market research only, from the VA (Network Contract Office 15) for replacing the Building 51 roof at the St.
Due in 2 daysNov 9, 2026, 10:00 AM CST
Similar small businesses
Other small businesses of a similar size with the same primary NAICS code (236220) that have won federal contracts in Massachusetts:
- Anvil Steel Engineering Inc, Taunton, MA
- Henry General Contractors Inc, Springfield, MA
- Provision Construction Inc, Duxbury, MA
- Vedant Construction Inc, Dracut, MA
- Veterans Construction LLC, Milton, MA
- Icarus Construction Services, LLC, Worcester, MA
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 Mar 31, 2027. We'll email you 60, 30 and 7 days ahead, and if it lapses.
Frequently asked questions
What is Williams Building Company, Inc.'s CAGE code?
Williams Building Company, Inc.'s CAGE code is 3LUW5. The Defense Logistics Agency assigns CAGE codes when a business registers on SAM.gov.
What is Williams Building Company, Inc.'s UEI?
Williams Building Company, Inc.'s Unique Entity ID (UEI) is R6EMCVYM26D3. SAM.gov assigns the UEI, and it identifies the business across the federal government.
Is Williams Building Company, Inc.'s SAM.gov registration active?
Yes, as of SAM.gov's public data from Nov 1, 2026, Williams Building Company, Inc.'s registration is active through Mar 31, 2027. Registrations are renewed every year.
Is Williams Building Company, Inc. a small business?
Williams Building Company, Inc. is registered on SAM.gov as small under 13 NAICS codes, including its primary code, 236220. 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.