# NAICS 561621 Security Systems Services: $2.3B, page 3

Updated November 6, 2026.

Incumbents: the largest recipients, 101 to 150 of 1,514, in the same order as page 1.

## The full list

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- [Federal contract awards under NAICS 561621 Security Systems Services (except Locksmiths)](https://specstream.ai/data/federal-awards/naics/561621-security-systems-services-except-locksmiths): 7,802 rows, fiscal years 2024 to 2027, from the USAspending.gov award archive of 2026-11-06; the 7,802 awards that name their recipient (the page total of 8,184 also counts awards to sole proprietorships and to entities that opted out, which no list holds), $158.02, or the new rows each week for $19 a month. Buy: https://specstream.ai/data/federal-awards/naics/561621-security-systems-services-except-locksmiths

SpecStream is the live web data engine for teams and agents. It reads every federal contract award on USAspending.gov and every open opportunity on SAM.gov, and this page is that reading. Ask for the awards in your niche and the winners, agencies, values and recompetes arrive in your sheet, CRM, Slack or agent as they are reported.

## Incumbents: the largest recipients, page 3

| Recipient | Business size | Awards | Obligated | Share |
| --- | --- | --- | --- | --- |
| [OPEN SYSTEMS TECHNOLOGIES CORPORATION](https://specstream.ai/data/federal-awards/recipient/open-systems-technologies-corporation-nhs8c4x93vc6) | Other Than Small Business | 5 | $2.1 million | 0.1% |
| [KWANGMU CO.,LTD.](https://specstream.ai/data/federal-awards/recipient/kwangmu-co-ltd-zepysbkgx1f4) | Other Than Small Business | 3 | $2.1 million | 0.1% |
| [JOHNSON CONTROLS BUILDING AUTOMATION SYSTEMS, LLC](https://specstream.ai/data/federal-awards/recipient/johnson-controls-building-automation-systems-llc-lfd2yfmzj1j3) | Other Than Small Business | 2 | $2.1 million | 0.1% |
| [DRAKE CONSULTING LLC](https://specstream.ai/data/federal-awards/recipient/drake-consulting-llc-g9gpu5s1uql3) | Small Business | 16 | $2.1 million | 0.1% |
| [JH ELEKTROANLAGEN GMBH & CO. KG](https://specstream.ai/data/federal-awards/recipient/jh-elektroanlagen-gmbh-co-kg-yzxgpnewgrc5) | Other Than Small Business | 5 | $2 million | 0.1% |
| [CONCENTRIC SECURITY LLC](https://specstream.ai/data/federal-awards/recipient/concentric-security-llc-jd1ls4llvj78) | Small Business | 17 | $2 million | 0.1% |
| [MINUTEMAN SECURITY SOLUTIONS LLC](https://specstream.ai/data/federal-awards/recipient/minuteman-security-solutions-llc-q899sbgb9mm1) | Small Business | 8 | $2 million | 0.1% |
| [PAMUNKEY INDIAN ENTERPRISES - PROFESSIONAL SERVICES (PIE-PS)](https://specstream.ai/data/federal-awards/recipient/pamunkey-indian-enterprises-professional-services-pie-ps-labywz1gcsd8) | Small Business | 1 | $2 million | 0.1% |
| [PACIFIC COAST CONTRACTING GROUP](https://specstream.ai/data/federal-awards/recipient/pacific-coast-contracting-group-eg15l8dbnr78) | Small Business | 5 | $1.8 million | 0.1% |
| [ADVANCED IT CONCEPTS, LLC](https://specstream.ai/data/federal-awards/recipient/advanced-it-concepts-llc-kkcwyu7sq2d4) | Small Business | 1 | $1.8 million | 0.1% |
| [SCOTT TOTAL SECURITY LIMITED](https://specstream.ai/data/federal-awards/recipient/scott-total-security-limited-mv6blvnudw45) | Small Business | 18 | $1.8 million | 0.1% |
| [CACI, INC. - FEDERAL](https://specstream.ai/data/federal-awards/recipient/caci-inc-federal-n3pbjavnkf61) | Other Than Small Business | 6 | $1.8 million | 0.1% |
| [TKH CONSTRUCTION, LLC](https://specstream.ai/data/federal-awards/recipient/tkh-construction-llc-mg3vkjvuvp75) | Small Business | 4 | $1.7 million | 0.1% |
| [VIKING SECURITY LLC](https://specstream.ai/data/federal-awards/recipient/viking-security-llc-ck5xxjpjz668) | Small Business | 2 | $1.7 million | 0.1% |
| [GOLDEN TECH SYSTEMS INC](https://specstream.ai/data/federal-awards/recipient/golden-tech-systems-inc-sbmcmwal73g4) | Small Business | 1 | $1.7 million | 0.1% |
| [DAL MEDIA SOLUTIONS INC.](https://specstream.ai/data/federal-awards/recipient/dal-media-solutions-inc-g9jlss7l9rd1) | Small Business | 6 | $1.7 million | 0.1% |
| [C4I ENGINEERING SERVICES, LLC](https://specstream.ai/data/federal-awards/recipient/c4i-engineering-services-llc-gmazmcwmze43) | Small Business | 3 | $1.7 million | 0.1% |
| [DAWSON MCG, INC.](https://specstream.ai/data/federal-awards/recipient/dawson-mcg-inc-hs3vc3kddgj6) | Small Business | 5 | $1.6 million | 0.1% |
| [ZENITH SYSTEMS LLC](https://specstream.ai/data/federal-awards/recipient/zenith-systems-llc-dswtp3sqlpm8) | Other Than Small Business | 1 | $1.6 million | 0.1% |
| [AZIMUTH CONTRACTING, LLC](https://specstream.ai/data/federal-awards/recipient/azimuth-contracting-llc-ng9bdrduk9v3) | Small Business | 1 | $1.6 million | 0.1% |
| [LOCKWOOD HILLS FEDERAL LLC](https://specstream.ai/data/federal-awards/recipient/lockwood-hills-federal-llc-ln3grbm6r1m7) | Small Business | 1 | $1.5 million | 0.1% |
| [ELECTRONIC SPECIALTY CO](https://specstream.ai/data/federal-awards/recipient/electronic-specialty-co-fpp7knktmpn5) | Small Business | 7 | $1.5 million | 0.1% |
| [GCC ENTERPRISES INC.](https://specstream.ai/data/federal-awards/recipient/gcc-enterprises-inc-fh9eb9fl27b6) | Small Business | 1 | $1.5 million | 0.1% |
| [CAMERON STRATEGIC MANAGEMENT LLC](https://specstream.ai/data/federal-awards/recipient/cameron-strategic-management-llc-sjhkgjewlwn8) | Small Business | 5 | $1.5 million | 0.1% |
| [POINT SECURITY INC](https://specstream.ai/data/federal-awards/recipient/point-security-inc-chl6gl3zyqm7) | Small Business | 21 | $1.5 million | 0.1% |
| [JANUS ADVISORY GROUP LLC](https://specstream.ai/data/federal-awards/recipient/janus-advisory-group-llc-dnjtdh6gpmm8) | Small Business | 3 | $1.4 million | 0.1% |
| [HANA TECHNOLOGIES & SYSTEMS, INC.](https://specstream.ai/data/federal-awards/recipient/hana-technologies-systems-inc-hxmudfyjvl42) | Small Business | 1 | $1.4 million | 0.1% |
| [EVERON, LLC](https://specstream.ai/data/federal-awards/recipient/everon-llc-xz42f8w7e3y3) | Other Than Small Business | 18 | $1.4 million | 0.1% |
| [KAIVA SERVICES, LLC](https://specstream.ai/data/federal-awards/recipient/kaiva-services-llc-cdbfjxpn7kl5) | Small Business | 9 | $1.4 million | 0.1% |
| [ADVANCED SECURITY TECHNOLOGIES LLC](https://specstream.ai/data/federal-awards/recipient/advanced-security-technologies-llc-xcaafn59t3c4) | Small Business | 4 | $1.4 million | 0.1% |
| [SENTRILLION CORPORATION](https://specstream.ai/data/federal-awards/recipient/sentrillion-corporation-pkzdjc7x7qk8) | Other Than Small Business | 6 | $1.4 million | 0.1% |
| E-MC ELECTRICAL, INC. | Small Business | 1 | $1.4 million | 0.1% |
| [VAN CLEVE & ASSOCIATES, INC.](https://specstream.ai/data/federal-awards/recipient/van-cleve-associates-inc-jegjry2ve2a3) | Small Business | 10 | $1.3 million | 0.1% |
| [HEI SECURITY LLC](https://specstream.ai/data/federal-awards/recipient/hei-security-llc-le6qhkk23fs7) | Small Business | 8 | $1.3 million | 0.1% |
| [TRU VANTAGE SOLUTIONS, INC](https://specstream.ai/data/federal-awards/recipient/tru-vantage-solutions-inc-u44uj36ackg9) | Small Business | 9 | $1.3 million | 0.1% |
| [TIC SECURITY, LLC](https://specstream.ai/data/federal-awards/recipient/tic-security-llc-k5pqpjvl8ca9) | Small Business | 19 | $1.3 million | 0.1% |
| [E.NORMAN SECURITY SYSTEMS, INC.](https://specstream.ai/data/federal-awards/recipient/e-norman-security-systems-inc-r6f3cptcae85) | Small Business | 5 | $1.3 million | 0.1% |
| [ENVIREMEDIAL SERVICES, INC.](https://specstream.ai/data/federal-awards/recipient/enviremedial-services-inc-wvw4hemwgn15) | Small Business | 6 | $1.3 million | 0.1% |
| [SMARTNET, INC.](https://specstream.ai/data/federal-awards/recipient/smartnet-inc-cgkdewgb33m7) | Small Business | 20 | $1.3 million | 0.1% |
| [BUFFALO HORSE INC](https://specstream.ai/data/federal-awards/recipient/buffalo-horse-inc-j5rehf6mvb36) | Small Business | 2 | $1.3 million | 0.1% |
| [NATIONAL PROJECT MANAGEMENT LLC](https://specstream.ai/data/federal-awards/recipient/national-project-management-llc-qut2fktvkpl3) | Small Business | 1 | $1.2 million | 0.1% |
| [B W ELECTRIC, INC.](https://specstream.ai/data/federal-awards/recipient/b-w-electric-inc-yk3uld1eh6u9) | Small Business | 14 | $1.2 million | 0.1% |
| [ACTIVE SECURITY CONSULTING LLC](https://specstream.ai/data/federal-awards/recipient/active-security-consulting-llc-s4hgjbwrbar5) | Small Business | 9 | $1.2 million | 0.1% |
| [ALAKA\`I SERVICES GROUP INC.](https://specstream.ai/data/federal-awards/recipient/alaka-i-services-group-inc-emndbxf7jsk9) | Small Business | 1 | $1.2 million | 0.1% |
| [CONVERGINT TECHNOLOGIES LLC](https://specstream.ai/data/federal-awards/recipient/convergint-technologies-llc-pxb2x38x4v11) | Other Than Small Business | 36 | $1.2 million | 0.1% |
| [KITUWAH SERVICES, LLC](https://specstream.ai/data/federal-awards/recipient/kituwah-services-llc-n6hfcq6kg999) | Small Business | 3 | $1.2 million | 0.1% |
| [SILENT PARTNER SECURITY SYSTEMS, INC.](https://specstream.ai/data/federal-awards/recipient/silent-partner-security-systems-inc-l53qwmca5bn5) | Small Business | 32 | $1.2 million | 0.1% |
| SECURITY INTEGRATION GROUP INC | Small Business | 1 | $1.2 million | 0.1% |
| [INTER-PACIFIC INC.](https://specstream.ai/data/federal-awards/recipient/inter-pacific-inc-uwgbmu9ycan1) | Small Business | 14 | $1.2 million | 0.1% |
| [MISSION SUPPORT SERVICES, LLC](https://specstream.ai/data/federal-awards/recipient/mission-support-services-llc-zms1zndy2xv6) | Small Business | 1 | $1.2 million | 0.1% |

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Source: [USAspending.gov](https://www.usaspending.gov/download_center/award_data_archive). Public U.S. federal spending data (U.S. Department of the Treasury). Obligations are the contract actions dated in fiscal years 2024 to 2027 of the USAspending.gov award archive of 2026-11-06; a contract's total value is its current value as USAspending reports it, including earlier years. Recipients are matched on their SAM.gov UEI, never on the name, and are shown as the government prints them. Sole proprietorships and opted-out entities count in the totals and are not named.

Free to reuse with credit to SpecStream under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/).