Search every US federal contract opportunity on SAM.gov, and draft winning RFP responses with AI.

Solutions

Contract search AI proposal writing Bid / no-bid scoring Buyer & market intelligence Forecast & recompetes Awards & competitors Teaming & partner network State & local contracts Pipeline & CRM

Find Contracts

All contracts Closing soon Recently posted Highest value Buyer Intelligence What’s coming up Who’s winning (awards)8(a) set-asides WOSB set-asides SDVOSB set-asides HUBZone set-asides

Agency opportunities

DoD contracts VA contracts HHS contracts DHS contracts DOE contracts GSA contracts DOT contracts NASA contracts

Tools & Pricing

AI Opportunity Scan Contract Pricing Benchmark Competitor & Incumbent Lookup Company Award Profile GovCon Market Explorer Supplier & Teaming Finder AI Pursuit Analyzer NAICS Code Lookup Set-Aside Eligibility Small Business Size Standard Acquisition Threshold Guide Bid / No-Bid Scorecard Bid ROI Calculator CMMC 2.0 / SPRS Estimator HUBZone Eligibility Checker Plans & pricing

Learn

Market Reports Blog Answers (Q&A)Resources Glossary A–Z Guides Compare tools 2026 data report

Company

About Contact sales Security & trust Careers WinAContract UK BidWriter UK GovCon — AI proposals eSourcing Data Privacy Terms Refunds

Services & network

Bid & capture consulting Registration & certifications GovCon training Supplier network Teaming & partnering Data & API Reports store

WinAContract is US-based and US-hosted — AI federal contract search and proposal writing software for US government contractors. Operated by eSourcing Data Ltd.

© 2026 eSourcing Data Ltd · info@winacontract.com

DoD · NAICS 561621

DoD Security Systems Services (except Locksmiths) contracts

35 open Department of Defense opportunities classified under NAICS 561621, live from SAM.gov.

What next? Found opportunities you can win? Apply for access to bid with AI.

Apply for access →

Get email alerts for this search

New contracts matching these filters, straight to your inbox. No account needed.

We’ll only email you about matching contracts. Want instant alerts, saved searches and AI proposals? Apply for access →

Browse wider: all DoD contracts · all NAICS 561621 contracts · how to win NAICS 561621 contracts

35 opportunities open now

Facilities & SupportCombined Synopsis/SolicitationSmall Business

PKB Interview Room Monitoring System

Dept of Defense Fe Warren Afb, WyomingSecurity Systems Services (except…

Sep 08, 2026

Response deadline

View details Write proposal

Facilities & SupportSpecial NoticeNONE 2 days left

Intent to Sole Source: Exacom Dispatch Recording Service and Maintenance Services and Support for Data Storage Equipment and Software

Dept of Defense Kittery, MaineSecurity Systems Services (except…

Aug 27, 2026

Response deadline

View details Write proposal

Facilities & SupportSolicitationSmall Business

Solicitation RQ FA487726QA198 943MXS CCTV/Security Camera Installation

Dept of DefenseSecurity Systems Services (except…

Sep 09, 2026

Response deadline

View details Write proposal

Facilities & SupportSolicitationNONE

Honeywell Vindicator V3 Intrustion Detection System Support

Dept of Defense Silverdale, WashingtonSecurity Systems Services (except…

Sep 05, 2026

Response deadline

View details Write proposal

Facilities & SupportCombined Synopsis/SolicitationSmall Business 2 days left

(102) Vindicator Maintenance

Dept of Defense Buzzards Bay, MassachusettsSecurity Systems Services (except…

Aug 27, 2026

Response deadline

View details Write proposal

Facilities & SupportCombined Synopsis/SolicitationSmall Business

Intrusion Detection System Install - BLDG SB-B1500, FS- B220

Dept of Defense Schofield Barracks, HawaiiSecurity Systems Services (except…

Sep 05, 2026

Response deadline

View details Write proposal

Facilities & SupportCombined Synopsis/SolicitationSmall Business 6 days left

Dorm Security Cameras

Dept of Defense Minot Afb, North DakotaSecurity Systems Services (except…

Aug 31, 2026

Response deadline

View details Write proposal

Facilities & SupportSolicitationSmall Business 3 days left

BPAs for Security, Access Control and Bldg Mgmnt

Dept of DefenseSecurity Systems Services (except…

Aug 28, 2026

Response deadline

View details Write proposal

Facilities & SupportSources SoughtSmall Business 6 days left

Melrose Air Force Range - Range Surveillance System

Dept of Defense Cannon Afb, New MexicoSecurity Systems Services (except…

Aug 31, 2026

Response deadline

View details Write proposal

Facilities & SupportSolicitationNONE 1 day left

IDS Expansion Scoping - Solicitation

Dept of Defense Eielson Afb, AlaskaSecurity Systems Services (except…

Aug 25, 2026

Response deadline

View details Write proposal

Facilities & SupportSolicitationSmall Business

Building 179 Access Control System Replacement and Intrusion Detection System Upgrade

Dept of Defense 0, CaliforniaSecurity Systems Services (except…

Sep 02, 2026

Response deadline

View details Write proposal

Facilities & SupportCombined Synopsis/SolicitationSmall Business

MARSOC CCTV Installation and Maintenance

Dept of Defense Sneads Ferry, North CarolinaSecurity Systems Services (except…

Sep 10, 2026

Response deadline

View details Write proposal

Facilities & SupportCombined Synopsis/SolicitationSmall Business

CCTV/Access Control Installation

Dept of Defense 0, MarylandSecurity Systems Services (except…

Sep 03, 2026

Response deadline

View details Write proposal

Facilities & SupportSolicitationSmall Business

Facility 1302 Turnstile Maintenance

Dept of Defense 0, VirginiaSecurity Systems Services (except…

Sep 02, 2026

Response deadline

View details Write proposal

Facilities & SupportSolicitation

Integrated Security Services Contract 5

Dept of DefenseSecurity Systems Services (except…

Sep 03, 2026

Response deadline

View details Write proposal

Facilities & SupportSources Sought 1 day left

CCTV, Access Control, and Physical Security System Maintenance - Naval Hospital Camp Pendleton

Dept of Defense Camp Pendleton, CaliforniaSecurity Systems Services (except…

Aug 26, 2026

Response deadline

View details Write proposal

Facilities & SupportSolicitationSmall Business

Turnstile Maintenance Services

Dept of Defense 0, VirginiaSecurity Systems Services (except…

Sep 02, 2026

Response deadline

View details Write proposal

Facilities & SupportSolicitationSmall Business 1 day left

Albeni Falls Dam (AFD) Electronic Security System Servers and Workstations Upgrade

Dept of Defense Oldtown, IdahoSecurity Systems Services (except…

Aug 26, 2026

Response deadline

View details Write proposal

Facilities & SupportPresolicitation 7 days left

Dover AFB - Solar Powered Mobile Camera Carts

Dept of Defense Dover Afb, DelawareSecurity Systems Services (except…

Sep 01, 2026

Response deadline

View details Write proposal

Facilities & SupportCombined Synopsis/SolicitationSmall Business 3 days left

B1130 Vindicator System Upgrade - Shaw AFB

Dept of Defense South CarolinaSecurity Systems Services (except…

Aug 28, 2026

Response deadline

View details Write proposal

Facilities & SupportCombined Synopsis/SolicitationSmall Business

RAFB Honeywell (Vindicator) Intrusion Detection System (IDS) Installation - Bldg. 905

Dept of Defense Warner Robins, GeorgiaSecurity Systems Services (except…

Sep 02, 2026

Response deadline

View details Write proposal

Facilities & SupportSolicitationSmall Business 3 days left

Fort Bragg Access Control and CCTV Maintenance and Repair

Dept of Defense Fort Bragg, North CarolinaSecurity Systems Services (except…

Aug 28, 2026

Response deadline

View details Write proposal

Facilities & SupportSolicitationSmall Business 1 day left

Fire Prevention and Protection Systems Maintenance and Repairs Service Contract

Dept of DefenseSecurity Systems Services (except…

Aug 26, 2026

Response deadline

View details Write proposal

Facilities & SupportSolicitationSmall Business

Building 179 Access Control System Replacement and Intrusion Detection System Upgrade

Dept of Defense 0, CaliforniaSecurity Systems Services (except…

Sep 02, 2026

Response deadline

View details Write proposal

Facilities & SupportSolicitationSmall Business 7 days left

Building 177 Access Control System Replacement

Dept of Defense 0, CaliforniaSecurity Systems Services (except…

Sep 01, 2026

Response deadline

View details Write proposal

‹ Prev12 Next ›