# NAICS 561621 Security Systems Services: $2.3B, page 6

Updated November 6, 2026.

Incumbents: the largest recipients, 251 to 300 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 6

| Recipient | Business size | Awards | Obligated | Share |
| --- | --- | --- | --- | --- |
| [JOHNSON CONTROLS BUILDING SOLUTIONS, LLC](https://specstream.ai/data/federal-awards/recipient/johnson-controls-building-solutions-llc-we3ges317kn9) | Other Than Small Business | 1 | $528,079 | 0.0% |
| [LIVEVIEW TECHNOLOGIES INC](https://specstream.ai/data/federal-awards/recipient/liveview-technologies-inc-jmlelbfbdzp9) | Other Than Small Business | 4 | $527,340 | 0.0% |
| [EXCALIBUR ASSOCIATES INC](https://specstream.ai/data/federal-awards/recipient/excalibur-associates-inc-kyc2mm3lnk29) | Small Business | 2 | $524,876 | 0.0% |
| [INNOVATIVE CONTROLS GROUP, LLC](https://specstream.ai/data/federal-awards/recipient/innovative-controls-group-llc-e3adczbtr823) | Small Business | 1 | $522,848 | 0.0% |
| [HONEYWELL INTERNATIONAL INC](https://specstream.ai/data/federal-awards/recipient/honeywell-international-inc-xlv3grckddg6) | Other Than Small Business | 2 | $521,673 | 0.0% |
| [MAYHEW TECHNOLOGY SOLUTIONS, LLC](https://specstream.ai/data/federal-awards/recipient/mayhew-technology-solutions-llc-c31lv42gmgk9) | Small Business | 9 | $516,487 | 0.0% |
| [HACKETT SECURITY, INC](https://specstream.ai/data/federal-awards/recipient/hackett-security-inc-f38muakdjgj8) | Small Business | 29 | $509,701 | 0.0% |
| [HIRT ELECTRIC, LLC](https://specstream.ai/data/federal-awards/recipient/hirt-electric-llc-jz8spynmnqv9) | Small Business | 1 | $500,000 | 0.0% |
| [CITIZEN CONTRACTING GROUP LLC](https://specstream.ai/data/federal-awards/recipient/citizen-contracting-group-llc-r7cyrnqzbsh3) | Small Business | 9 | $498,846 | 0.0% |
| [SKE SUPPORT SERVICES GMBH](https://specstream.ai/data/federal-awards/recipient/ske-support-services-gmbh-mab5jhcrw6v1) | Other Than Small Business | 2 | $493,230 | 0.0% |
| [CALLAHAN CONSTRUCTION COMPANY, INCORPORATED](https://specstream.ai/data/federal-awards/recipient/callahan-construction-company-incorporated-j9mxan1rpfd6) | Small Business | 4 | $492,103 | 0.0% |
| LIFE CHECK SYSTEMS, LLC | Small Business | 1 | $485,208 | 0.0% |
| [J3 ENTERPRISE LLC](https://specstream.ai/data/federal-awards/recipient/j3-enterprise-llc-ksh2wh9fugc4) | Small Business | 9 | $480,250 | 0.0% |
| [QCM, INC.](https://specstream.ai/data/federal-awards/recipient/qcm-inc-tm2dks2x9ts9) | Small Business | 1 | $479,808 | 0.0% |
| SENTINEL ALARM SYSTEMS LLC | Small Business | 1 | $470,946 | 0.0% |
| MOUNTAIN WEST INTEGRATED SERVICES, LLC | Small Business | 1 | $470,831 | 0.0% |
| [3M ELECTRIC LLC](https://specstream.ai/data/federal-awards/recipient/3m-electric-llc-vgn8er7crcy7) | Small Business | 4 | $469,020 | 0.0% |
| [TAYLOR FIRE PROTECTION SERVICES LLC](https://specstream.ai/data/federal-awards/recipient/taylor-fire-protection-services-llc-fd1lhnjnfnw5) | Small Business | 5 | $468,789 | 0.0% |
| [VINDICATOR TECHNOLOGIES, INC.](https://specstream.ai/data/federal-awards/recipient/vindicator-technologies-inc-jec6djtvggx7) | Other Than Small Business | 10 | $462,153 | 0.0% |
| [T1 CONSTRUCTION LLC](https://specstream.ai/data/federal-awards/recipient/t1-construction-llc-hj7kymsueze9) | Small Business | 2 | $456,366 | 0.0% |
| [ELECTRONIC SECURITY CONCEPTS LLC](https://specstream.ai/data/federal-awards/recipient/electronic-security-concepts-llc-da7hahrv3dw7) | Small Business | 15 | $455,513 | 0.0% |
| [FORTIOR SOLUTIONS, LLC](https://specstream.ai/data/federal-awards/recipient/fortior-solutions-llc-jp2ff7leu4h1) | Small Business | 4 | $452,549 | 0.0% |
| [HIDENIS GROUP LLC](https://specstream.ai/data/federal-awards/recipient/hidenis-group-llc-xj17hf9gls46) | Small Business | 2 | $452,440 | 0.0% |
| [AFA PROTECTIVE SYSTEMS INC](https://specstream.ai/data/federal-awards/recipient/afa-protective-systems-inc-llnpjmxxcfp6) | Other Than Small Business | 5 | $452,329 | 0.0% |
| CDP PROPERTIES LLC | Small Business | 1 | $451,618 | 0.0% |
| [FIRE PROTECTION SERVICE CORP](https://specstream.ai/data/federal-awards/recipient/fire-protection-service-corp-mpvyflbr7c74) | Small Business | 16 | $451,578 | 0.0% |
| [RAPID FIRE SAFETY & SECURITY, LLC](https://specstream.ai/data/federal-awards/recipient/rapid-fire-safety-security-llc-qqlqzplz6j28) | Small Business | 10 | $448,377 | 0.0% |
| TORAH FEDERAL SYSTEMS LLC | Small Business | 1 | $447,750 | 0.0% |
| [BLUE EAGLE SERVICES INC](https://specstream.ai/data/federal-awards/recipient/blue-eagle-services-inc-x6hgkhfs5j97) | Small Business | 5 | $443,225 | 0.0% |
| [EVOLUTION TECHNOLOGIES LLC](https://specstream.ai/data/federal-awards/recipient/evolution-technologies-llc-jj8zub77jnf8) | Small Business | 2 | $442,165 | 0.0% |
| GLOBAL PROTECTION SOLUTIONS 504 LLC | Other Than Small Business | 1 | $440,600 | 0.0% |
| [ELECTRO SISTEMAS DE PANAMA SA](https://specstream.ai/data/federal-awards/recipient/electro-sistemas-de-panama-sa-yyahwevmb7v9) | Other Than Small Business | 18 | $439,905 | 0.0% |
| R-CAP SECURITY, LLC | Small Business | 1 | $439,453 | 0.0% |
| OMICRON INTERNATIONAL INCORPORATION | Small Business | 1 | $430,750 | 0.0% |
| [REDCON SOLUTIONS GROUP LLC](https://specstream.ai/data/federal-awards/recipient/redcon-solutions-group-llc-hqxxab4dv7h3) | Small Business | 1 | $429,643 | 0.0% |
| [INTEGRATED SECURITY SOLUTIONS INC](https://specstream.ai/data/federal-awards/recipient/integrated-security-solutions-inc-ywlljbhse9a4) | Small Business | 21 | $420,094 | 0.0% |
| [KOSAKA KOMUTEN CO.,LTD.](https://specstream.ai/data/federal-awards/recipient/kosaka-komuten-co-ltd-eww4de59kqt8) | Other Than Small Business | 1 | $417,421 | 0.0% |
| SECUREPRO TECHNOLOGIES, L.L.C. | Small Business | 1 | $402,250 | 0.0% |
| [API GROUP LIFE SAFETY USA LLC](https://specstream.ai/data/federal-awards/recipient/api-group-life-safety-usa-llc-r97brqabkme1) | Other Than Small Business | 9 | $397,598 | 0.0% |
| [HONEYWELL INTERNATIONAL INC.](https://specstream.ai/data/federal-awards/recipient/honeywell-international-inc-j79uj96dgl31) | Other Than Small Business | 2 | $395,122 | 0.0% |
| [M&H UNITED LLC](https://specstream.ai/data/federal-awards/recipient/m-h-united-llc-qqljfqgpgb46) | Small Business | 1 | $391,965 | 0.0% |
| [ACCESS COMMUNICATIONS GROUP, LLC](https://specstream.ai/data/federal-awards/recipient/access-communications-group-llc-cwbbtjljjm54) | Small Business | 11 | $391,176 | 0.0% |
| [CHICKASAW SERVICE SOLUTIONS, LLC](https://specstream.ai/data/federal-awards/recipient/chickasaw-service-solutions-llc-g9zunb3u1jk1) | Small Business | 1 | $383,324 | 0.0% |
| [AANTILIA LLC](https://specstream.ai/data/federal-awards/recipient/aantilia-llc-m1wnfffkysx6) | Other Than Small Business | 4 | $382,592 | 0.0% |
| [APOGEE-SSU JOINT VENTURE LLC](https://specstream.ai/data/federal-awards/recipient/apogee-ssu-joint-venture-llc-w8kjtn6qamm7) | Small Business | 8 | $382,282 | 0.0% |
| [ALAMO INTEGRATED SYSTEMS, INC.](https://specstream.ai/data/federal-awards/recipient/alamo-integrated-systems-inc-vm4kjjn16mm6) | Small Business | 4 | $379,313 | 0.0% |
| [LIVION TECHNOLOGY, LLC](https://specstream.ai/data/federal-awards/recipient/livion-technology-llc-y54rj6xmsan6) | Small Business | 1 | $378,450 | 0.0% |
| [DESERT DATACOM INC](https://specstream.ai/data/federal-awards/recipient/desert-datacom-inc-ud7amfhvjt58) | Small Business | 2 | $378,177 | 0.0% |
| [DORNEY SECURITY SYSTEMS, INC.](https://specstream.ai/data/federal-awards/recipient/dorney-security-systems-inc-m8b3vzbhevk3) | Small Business | 3 | $373,889 | 0.0% |
| [G4S SECURITY SYSTEMS GUAM INC](https://specstream.ai/data/federal-awards/recipient/g4s-security-systems-guam-inc-hfxrfkefk964) | Other Than Small Business | 4 | $373,366 | 0.0% |

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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.

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