Federal contract awards: NAICS 561621 (Security Systems Services (except Locksmiths))
Past federal contracts, straight from USAspending.gov. Use them to price your bid, size up the competition and find the agencies that buy what you sell.
Showing contracts that started in the last 12 months (first 2 pages). Register free to browse every page.
23contracts awarded
$261,385median value
$90,763 – $893,937typical range (P25–P75)
2.1average offers received
$33,417,672total obligated
Agencies that buy the most
| Agency | Contracts | Obligated |
|---|---|---|
| Department of Transportation | 23 | $33,417,672 |
Top winners
| Company | Contracts | Obligated |
|---|---|---|
| M. C. DEAN, INC. | 17 | $32,980,685 |
| S & K SECURITY GROUP LLC | 1 | $328,772 |
| HURTVET SUBCONTRACTING, INC. | 1 | $36,324 |
| 0369 SECURITY SOLUTIONS SERVICES LLC | 1 | $20,164 |
| WYCLIFFE ENTERPRISES, INC. | 1 | $19,001 |
| J2 ASSOCIATES, LLC | 1 | $18,878 |
| CONVERGINT TECHNOLOGIES LLC | 1 | $13,850 |
Contracts
| Contract | Winner | Agency | Obligated | Start |
|---|---|---|---|---|
| LEGACY PSEMS SYSTEM SOFTWARE LICENSING (WP 2026-WA-005)
693KA826F00315 · NAICS 561621 Security Systems Services (except Locksmiths) · Mclean, VA |
M. C. DEAN, INC. | Department of Transportation Federal Aviation Administration |
$3,116,072 | Sep 14, 2026 Ends: Aug 14, 2027 |
| PHL ATCT/TRACON (WP 2026-EA-002) - PHASE 1 (SITE SURVEY AND DESIGN)
693KA826F00295 · NAICS 561621 Security Systems Services (except Locksmiths) · Philadelphia, PA |
M. C. DEAN, INC. | Department of Transportation Federal Aviation Administration |
$103,173 | Aug 26, 2026 Ends: Aug 14, 2028 |
| MEMPHIS ARTCC (ZME) (WP 2026-SO-003) - PHASE 2A (PROCUREMENT AND PRE-INSTALLATION)
693KA826F00287 · NAICS 561621 Security Systems Services (except Locksmiths) · Memphis, TN |
M. C. DEAN, INC. | Department of Transportation Federal Aviation Administration |
$832,089 | Aug 12, 2026 Ends: Aug 14, 2028 |
| HOUSTON TRACON (I90) - PHASE 2A (PROCUREMENT AND PRE-INSTALLATION)
693KA826F00286 · NAICS 561621 Security Systems Services (except Locksmiths) · Houston, TX |
M. C. DEAN, INC. | Department of Transportation Federal Aviation Administration |
$571,701 | Aug 11, 2026 Ends: Aug 14, 2028 |
| ROCKFORD INTERNATIONAL AIRPORT (RFD) IN ROCKFORD, IL AIR TRAFFIC CONTROL TOWER (ATCT) - PHASE 1 (DESIGN ONLY)
693KA826F00249 · NAICS 561621 Security Systems Services (except Locksmiths) · Rockford, IL |
M. C. DEAN, INC. | Department of Transportation Federal Aviation Administration |
$112,242 | Jul 01, 2026 Ends: Dec 31, 2029 |
| LINCOLN FLIGHT STANDARDS DISTRICT OFFICE (LNK) (LINCOLN, NE) FLIGHT STANDARDS DISTRICT OFFICE (FSDO) - PHASE 1 (SITE SURVEY AND DESIGN)
693KA826F00250 · NAICS 561621 Security Systems Services (except Locksmiths) · Lincoln, NE |
M. C. DEAN, INC. | Department of Transportation Federal Aviation Administration |
$82,031 | Jul 01, 2026 Ends: Sep 30, 2029 |
| UPGRADING EXISTING PIV CARD READER SYSTEM.
693C7326P000027 · NAICS 561621 Security Systems Services (except Locksmiths) · Ashburn, VA · Offers: 1 |
WYCLIFFE ENTERPRISES, INC. | Department of Transportation Federal Highway Administration |
$19,001 | Jun 05, 2026 Ends: Aug 04, 2027 |
| AMO NEW CONSTRUCTION - SITE SURVEY (WP 2026-WA-004)
693KA826F00226 · NAICS 561621 Security Systems Services (except Locksmiths) · Southlake, TX |
M. C. DEAN, INC. | Department of Transportation Federal Aviation Administration |
$220,129 | Jun 05, 2026 Ends: Dec 15, 2028 |
| FSL3 PSEMS SITES (WP 2026-WA-003) PHASE 1 (SITE SURVEY/DESIGN) FOR 33 SITES
693KA826F00207 · NAICS 561621 Security Systems Services (except Locksmiths) · Mclean, VA |
M. C. DEAN, INC. | Department of Transportation Federal Aviation Administration |
$3,484,009 | May 27, 2026 Ends: Aug 14, 2029 |
| SSDI-II - DECODER REPLACEMENT PROJECT - MULTIPLE SITES (WP 2026-WA-002)
693KA826F00206 · NAICS 561621 Security Systems Services (except Locksmiths) · Mclean, VA |
M. C. DEAN, INC. | Department of Transportation Federal Aviation Administration |
$261,385 | May 18, 2026 Ends: Aug 14, 2027 |
| P2000 PSEMS LEGACY SYSTEM ADMINISTRATION
693KA826F00194 · NAICS 561621 Security Systems Services (except Locksmiths) · Mclean, VA |
M. C. DEAN, INC. | Department of Transportation Federal Aviation Administration |
$1,146,968 | May 15, 2026 Ends: Aug 01, 2027 |
| AWARD OF FIRE ALARM TESTING & INSPECTION SERVICES AT THE C90 TRACON IN ELGIN, ILLINOIS. BASE + 4 OPTION YEARS. POP: 5/1/2026 - 3/31/2031.
697DCK26C00119 · NAICS 561621 Security Systems Services (except Locksmiths) · Elgin, IL · SBA · Offers: 6 |
J2 ASSOCIATES, LLC | Department of Transportation Federal Aviation Administration |
$18,878 Potential value: $155,353 |
Apr 28, 2026 Ends: Mar 31, 2027 |
| PCT/TRACON-DCC OPTIMIZATION PHASE 1 - SITE SURVEY (WP#2026-EA-001)
693KA826F00160 · NAICS 561621 Security Systems Services (except Locksmiths) · Warrenton, VA |
M. C. DEAN, INC. | Department of Transportation Federal Aviation Administration |
$135,298 | Apr 13, 2026 Ends: Apr 19, 2027 |
| WHEELER DOWNTOWN ATCT (MKC) - PHASE 2A/2B
693KA826F00144 · NAICS 561621 Security Systems Services (except Locksmiths) · Kansas City, MO |
M. C. DEAN, INC. | Department of Transportation Federal Aviation Administration |
$493,573 | Apr 01, 2026 Ends: Jun 30, 2029 |
| GREAT LAKES REGIONAL OFFICE (AGL1) (WP 2026-GL-002) - PHASE 1 (DESIGN) & PHASE 2A (IMPLEMENTATION AND PRE-INSTALLATION)
693KA826F00142 · NAICS 561621 Security Systems Services (except Locksmiths) · Des Plaines, IL |
M. C. DEAN, INC. | Department of Transportation Federal Aviation Administration |
$955,784 | Mar 30, 2026 Ends: Sep 30, 2027 |
| ALARM PANEL REPLACEMENT
6982AF26P000009 · NAICS 561621 Security Systems Services (except Locksmiths) · Lakewood, CO · Offers: 1 |
CONVERGINT TECHNOLOGIES LLC | Department of Transportation Federal Highway Administration |
$13,850 | Mar 06, 2026 Ends: May 04, 2026 |
| SECURITY SYSTEM MAINTENANCE CONTRACT - INCREMENTALLY FUNDED
693KA826C00003 · NAICS 561621 Security Systems Services (except Locksmiths) · Mclean, VA · Offers: 4 |
M. C. DEAN, INC. | Department of Transportation Federal Aviation Administration |
$6,351,372 Potential value: $53,572,992 |
Mar 05, 2026 Ends: Mar 08, 2027 |
| PEORIA, IL AIRPORT TRAFFIC CONTROL TOWER (PIA) (ATCT) - PHASE 1 (DESIGN ONLY)
693KA826F00099 · NAICS 561621 Security Systems Services (except Locksmiths) · Peoria, IL |
M. C. DEAN, INC. | Department of Transportation Federal Aviation Administration |
$340,026 | Mar 03, 2026 Ends: Aug 14, 2029 |
| TAMIAMI NEW ATCT (TMB) (WP 2026-SO-001) PHASE 1
693KA826F00101 · NAICS 561621 Security Systems Services (except Locksmiths) · Miami, FL |
M. C. DEAN, INC. | Department of Transportation Federal Aviation Administration |
$99,494 | Mar 02, 2026 Ends: Jun 30, 2029 |
| PSEMS2 MIGRATION PART 3
693KA826F00085 · NAICS 561621 Security Systems Services (except Locksmiths) · Mclean, VA |
M. C. DEAN, INC. | Department of Transportation Federal Aviation Administration |
$14,675,337 | Feb 05, 2026 Ends: Sep 30, 2028 |
| FIRE SPRINKLER, ALARM AND DETECTION SYSTEMS TESTING, INSPECTION AND RECURRING MAINTENANCE FOR PHOENIX SKY HARBOR ATCT & TRACON
697DCK26C00009 · NAICS 561621 Security Systems Services (except Locksmiths) · Phoenix, AZ · Offers: 1 |
0369 SECURITY SOLUTIONS SERVICES LLC | Department of Transportation Federal Aviation Administration |
$20,164 Potential value: $154,587 |
Nov 24, 2025 Ends: Feb 28, 2031 |
| EL PASO MICROWAVE & SENSOR REPLACEMENT FOR US CUSTOMS & BORDER PROTECTION AGENCY
6973GH26P00253 · NAICS 561621 Security Systems Services (except Locksmiths) · Saint Ignatius, MT · Offers: 1 |
S & K SECURITY GROUP LLC | Department of Transportation Federal Aviation Administration |
$328,772 | Nov 17, 2025 Ends: Nov 16, 2026 |
| FIRE LIFE SAFETY MAINTENANCE AND TESTING AT MIAMI AIR TRAFFIC CONTROL TOWER (ATCT)
697DCK26C00021 · NAICS 561621 Security Systems Services (except Locksmiths) · Miami, FL · Offers: 1 |
HURTVET SUBCONTRACTING, INC. | Department of Transportation Federal Aviation Administration |
$36,324 Potential value: $229,752 |
Nov 05, 2025 Ends: Nov 30, 2030 |
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Register freeSource: USAspending.gov (prime contract awards of $10,000 or more). Values are amounts obligated to date. Recent months can still change as agencies report late.