NAICS 561621 contracts at the Department of the Air Force
561621 Security Systems Services (except Locksmiths)
Right now there are 2 open federal NAICS 561621 notices from Department of the Air Force, 1 of them open for bids. 1 close within the next 7 days. 2 are set aside for small or certified businesses, so fewer companies can compete. Over the last 12 months agencies posted 98 NAICS 561621 solicitations from Department of the Air Force and published 6 awards with a median value of $219K. The busiest buyer was the Department of the Air Force, with 98 solicitations.
What the Department of the Air Force buys under NAICS 561621 (security systems services (except locksmiths)): notices open today on SAM.gov and the award notices it published in the last 12 months. See all NAICS 561621 contracts or everything Department of the Air Force buys.
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- Open notices today
- 2 (1 open for bids)
- Closing within 7 days
- 1
- Set aside for small or certified businesses
- 2
- Solicitations posted, last 12 months
- 98
- Published awards, last 12 months
- 6 (median $219K)
- Busiest buyer, last 12 months
- Department of the Air Force
- Source and update
- SAM.gov public data, updated October 24, 2026
Open now
| Deadline | Notice | Set-aside |
|---|---|---|
| Oct 30 6 days left |
Inspection of Fire Extinguishers and Suppression Systems for AMXG at Hill AFB, Utah
Department of the Air Force, Hill Air Force Base, UT |
Small business |
| No deadline | Electronic Ramp Gate PM
Department of the Air Force, Tinker AFB, OK Pre-solicitation |
Small business |
Where the work is
open today + last 12 months
Set-asides open today
Other agencies buying NAICS 561621
Other NAICS codes bought by Department of the Air Force
- 334310 Audio and Video Equipment Manufacturing
- 561720 Janitorial Services
- 811210 Electronic and Precision Equipment Repair and Maintenance
- 333924 Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing
- 541990 All Other Professional, Scientific, and Technical Services
- 332510 Hardware Manufacturing
- 541511 Custom Computer Programming Services
- 238290 Other Building Equipment Contractors
- 315990 Apparel Accessories and Other Apparel Manufacturing
- 562910 Remediation Services
- 541611 Administrative Management and General Management Consulting Services
- 334290 Other Communications Equipment Manufacturing
- 236220 Commercial and Institutional Building Construction
- 488190 Other Support Activities for Air Transportation
- 237310 Highway, Street, and Bridge Construction
- 517111 Wired Telecommunications Carriers
- 325920 Explosives Manufacturing
- 334511 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing
- 336414 Guided Missile and Space Vehicle Manufacturing
- 333922 Conveyor and Conveying Equipment Manufacturing
- 532490 Other Commercial and Industrial Machinery and Equipment Rental and Leasing
- 238990 All Other Specialty Trade Contractors
- 611699 All Other Miscellaneous Schools and Instruction
- 337214 Office Furniture (except Wood) Manufacturing
- 611430 Professional and Management Development Training
- 541512 Computer Systems Design Services
- 334519 Other Measuring and Controlling Device Manufacturing
- 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
- 561210 Facilities Support Services
- 334513 Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables
Sources sought
Recent awards
6 published awards in the last 12 months. The latest:
| Date | Winner and contract | Amount |
|---|---|---|
| Aug 31 | Underwood Federal Solutions LLC Wrong Way Detection/Reverse Entry Alert System Department of the Air Force, ID |
$47K |
| Jul 20 | GSC Systems Inc. Access Control System Upgrade Department of the Air Force, FL |
$52K |
| Apr 22 | Ldia Holdings, LLC 20 SFS Camera Refresh Department of the Air Force, SC |
$219K |
| Apr 22 | Ldia Holdings, LLC 20 SFS Camera Refresh Department of the Air Force, SC |
$219K |
| Apr 22 | Ldia Holdings, LLC 20 SFS Camera Refresh Department of the Air Force, SC |
$219K |
| Sep 26, 2025 | Drake Consulting LLC Access Control System and CLosed -Circuit Television (CCTV) Department of the Air Force, GA |
$290K |
Who wins the most
- Ldia Holdings, LLC (3 awards)
- Underwood Federal Solutions LLC (1 award)
- GSC Systems Inc. (1 award)
- Drake Consulting LLC (1 award)
Questions
How many federal NAICS 561621 contracts are open from Department of the Air Force?
On October 24, 2026 there were 2 open notices on SAM.gov, 1 of them closing within a week. BidFox updates this page every morning from the official SAM.gov data.
Which agencies buy the most NAICS 561621 from Department of the Air Force?
Counting solicitations from the last 12 months: Department of the Air Force (98 solicitations).
How much are federal NAICS 561621 contracts from Department of the Air Force worth?
The median published award over the last 12 months was $219K, across 6 award notices. Many awards are much smaller or larger, and some contracts are awarded without a public award notice.
Can small businesses bid on NAICS 561621 contracts from Department of the Air Force?
Yes. 85% of the NAICS 561621 solicitations from Department of the Air Force in the last 12 months were set aside for small businesses or for certified firms (8(a), HUBZone, SDVOSB, WOSB). Open-competition notices accept any registered business.
How do I get new notices like these by email?
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Learn more
Source: public SAM.gov contract opportunity notices, updated October 24, 2026. Award amounts are as published in award notices.