Main Building Maintenance, Inc.
Main Building Maintenance, Inc. is a small business in San Antonio, TX registered on SAM.gov to bid on federal contracts. It has won about $80.2 million in federal prime contracts since fiscal year 2024, according to USAspending.gov's award records for its UEI.
- UEI
- RCDCJ4GKA7S3
- CAGE code
- 6U9R3
- SAM.gov registration
- Active
Federal contract history
| Fiscal year | Obligated, prime contracts |
|---|---|
| FY2024 | $29.5 million |
| FY2025 | $27.6 million |
| FY2026 (incomplete) | $23.2 million |
FY2026 is still incomplete and will rise until about early January 2027 as Defense data arrives: USAspending.gov publishes Defense contracts 90 days after they're signed.
These are every prime contract USAspending.gov records under UEI RCDCJ4GKA7S3, 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 the Army ($47 million) and Defense Health Agency ($33.2 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 |
|---|---|---|---|
| Jun 29, 2026 | Defense Health Agency | Hec for mcnair and rader | $660,836 |
| Jun 29, 2026 | Defense Health Agency | Healthcare environmental cleaning for fort meade, fort detrick and aberdeen proving ground | $2.4 million |
| May 7, 2026 | Department of the Army | This is a one month extension for housekeeping at irwin army community hospital (IACH),… | $345,771 |
| Mar 25, 2026 | Department of the Army | This new task order is to add the FY25 wage determination increase for the period 1… | $86,224 |
| Nov 24, 2025 | Department of the Army | Housekeeping services. | $12.7 million |
| Nov 12, 2025 | Defense Health Agency | Healthcare environmental cleaning services in support of naval health clinic charleston. | $884,600 |
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 | Main Building Maintenance, Inc. |
|---|---|
| Unique Entity ID (UEI) | RCDCJ4GKA7S3 |
| CAGE code | 6U9R3 |
| Location | San Antonio, TX |
| SAM.gov registration | Active through Apr 1, 2027 |
| Business started | 1972 |
| Primary NAICS code | 561720: Janitorial Services |
| How to contact | No phone or email in SAM.gov's public file. Search UEI RCDCJ4GKA7S3 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).
- Hispanic American-owned (self-reported in SAM.gov)
- Minority-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.
Check or correct this record at the source: open its SAM.gov entry, or search UEI RCDCJ4GKA7S3 () 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 Main Building Maintenance, Inc. is small under
On its SAM.gov registration, Main Building Maintenance, Inc. meets the SBA size standard for these industries, so it can bid on small business set-asides that use them.
Open contracts in Main Building Maintenance, Inc.'s NAICS codes
77 open federal opportunities on SAM.gov use one of Main Building Maintenance, 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. Here are a few, those in its primary code first (none of these are in Texas right now), then the soonest due.
- Semi-Annual Window Cleaning
Due in 2 daysNov 9, 2026, 10:00 AM MST
- JANITORIAL SERVICE - Kentucky Area
Due in 2 daysNov 9, 2026, 2:00 PM EST
- Estes Janitorial Service
✦ The Bureau of Reclamation's Eastern Colorado Area Office is looking for small businesses that could clean the Estes and Marys Lake Powerplants in Estes Park, CO. This is a…
Due in 3 daysNov 10, 2026, 3:00 PM MST
- Janitorial Services on the Homochitto Ranger District, MS
Due in 5 daysNov 12, 2026, 9:00 AM EST
- Janitorial Service - Las Vegas, New Mexico
Due in 5 daysNov 12, 2026, 10:00 AM EST
Similar small businesses
Other small businesses of a similar size with the same primary NAICS code (561720) that have won federal contracts in Texas:
- Alcazar Trades, Inc, San Antonio, TX
- The Victor Group, Inc., San Antonio, TX
- Pureservice Corp, Southlake, TX
- Advanced Nationwide Security Corporation, Houston, TX
- Marfran Cleaning LLC, Houston, TX
- One Touch Facility Partners LLC, Highland Village, TX
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 1, 2027. We'll email you 60, 30 and 7 days ahead, and if it lapses.
Frequently asked questions
What is Main Building Maintenance, Inc.'s CAGE code?
Main Building Maintenance, Inc.'s CAGE code is 6U9R3. The Defense Logistics Agency assigns CAGE codes when a business registers on SAM.gov.
What is Main Building Maintenance, Inc.'s UEI?
Main Building Maintenance, Inc.'s Unique Entity ID (UEI) is RCDCJ4GKA7S3. SAM.gov assigns the UEI, and it identifies the business across the federal government.
Is Main Building Maintenance, Inc.'s SAM.gov registration active?
Yes, as of SAM.gov's public data from Nov 1, 2026, Main Building Maintenance, Inc.'s registration is active through Apr 1, 2027. Registrations are renewed every year.
Is Main Building Maintenance, Inc. a small business?
Main Building Maintenance, Inc. is registered on SAM.gov as small under 4 NAICS codes, including its primary code, 561720. 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.