NAICS 5616: Investigation and Security Services

Industry group

Code facts

Codes under it
2
Contract awards
3,795 In the last 12 months
Contract obligations
$7,642,957,606 In FY2025

NAICS codes and definitions come from the U.S. Census Bureau and contract spending from SAM.gov/FPDS.

Contract obligations by fiscal year

Fiscal year Obligated
FY2027 To date $134,697,385
FY2026 $8,594,927,085
FY2025 $7,642,957,606
FY2024 $7,209,202,036
FY2023 $7,112,274,966

Top contractors by obligations

Rank Contractor Obligated, FY2026–FY2027 Share
1 Amentum Services, Inc. $725,164,325
2 The GEO Group, Inc. $648,110,424
3 Metropolitan Security Services, Inc. $626,129,460
4 Corecivic, Inc. $358,902,886
5 Paragon Systems Inc. $323,754,174
6 Universal Protection Service, LIMITED Partnership $317,554,539
7 Triple Canopy Inc. $284,538,366
8 Caci, Inc. - Federal $260,055,341
9 Akima Infrastructure Protection LLC $239,082,946
10 Gardaworld Federal Services LLC $235,455,352

See the full FY2025 ranking of NAICS 5616 contractors, by parent company.

Top funding agencies by obligations

Rank Agency Obligated, FY2026–FY2027 Share
1 Department of Homeland Security $4,940,158,208
2 Department of State $801,925,944
3 Administrative Office of the U.S. Courts $716,621,480
4 Defense Counterintelligence and Security Agency Department of Defense $378,855,094
5 Department of the Army Department of Defense $299,684,796
6 Department of Justice $273,560,756
7 Department of the Navy Department of Defense $189,415,557
8 Department of Health and Human Services $164,763,593
9 Air Force Department of Defense $138,344,007
10 Department of Veterans Affairs $136,440,725
Rank PSC code Obligated, FY2026–FY2027 Share
1 S206 Guard Services $6,189,454,461
2 R430 Support – Professional: Physical Security and Badging $757,394,869
3 R615 Support – Administrative: Background Investigation $540,831,781
4 R799 Other Management Support Services $221,183,300
5 R499 Other Professional Services $216,269,561
6 6350 Miscellaneous Alarm, Signal, and Security Detection Systems $166,364,146
7 J059 Maintenance, Repair and Rebuilding of Equipment: Electrical and Electronic Equipment Components $91,996,524
8 J063 Maintenance, Repair and Rebuilding of Equipment: Alarm, Signal, and Security Detection Systems $82,423,315
9 V999 Other Transportation Travel and Relocation Services $73,461,183
10 N063 Installation of Equipment: Alarm, Signal, and Security Detection Systems $73,420,398

Contract obligations by state

Rank Place of performance Obligated, last 12 months Share
1 Texas $1,272,943,965
2 Virginia $1,039,152,782
3 California $905,981,791
4 Florida $653,140,249
5 Tennessee $620,238,809
6 District of Columbia $589,849,536
7 Maryland $353,992,568
8 New York $238,667,723
9 Alaska $153,091,543
10 Colorado $141,220,361
11 Georgia $129,386,085
12 Michigan $126,339,099
13 New Jersey $125,021,232
14 Missouri $115,319,462
15 Washington $114,898,720
16 Pennsylvania $107,082,321
17 Arizona $94,842,161
18 Utah $89,697,958
19 Massachusetts $69,353,797
20 Illinois $55,190,968
21 North Carolina $53,277,601
22 New Mexico $52,032,209
23 Louisiana $49,538,748
24 Alabama $48,983,423
25 Minnesota $45,578,248
26 Puerto Rico $44,588,192
27 Kansas $43,077,265
28 Ohio $42,461,413
29 Hawaii $36,050,758
30 South Carolina $25,849,698
31 Oregon $25,608,800
32 Kentucky $24,307,468
33 Mississippi $23,845,848
34 Montana $23,274,462
35 Oklahoma $20,020,665
36 West Virginia $19,738,084
37 South Dakota $13,098,138
38 Nevada $12,735,545
39 Indiana $11,935,143
40 Connecticut $10,832,933
41 Arkansas $10,244,023
42 Wisconsin $9,924,618
43 Idaho $8,818,975
44 Rhode Island $7,033,849
45 Nebraska $6,596,502
46 New Hampshire $6,010,525
47 Iowa $3,878,546
48 Guam $3,872,290
49 Maine $3,703,372
50 North Dakota $3,393,408
51 Vermont $2,371,009
52 Delaware $1,419,538
53 Wyoming $975,741
54 U.S. Virgin Islands $455,175
55 Northern Mariana Islands $108,000
Show all 55

Shares are of everything obligated under NAICS 5616 in the last 12 months before deobligations, including work performed abroad or with no place of performance on record.

Contract opportunities

Notice Posted Due
Tobyhanna Gates & Turnstiles Solicitation · Department of the Army
Multiple Award Schedule Award Notice · Federal Acquisition Service
Blanket Purchase Agreement - Security Systems, Products and Services Solicitation · US Embassy Brussels (DOS)
Fire and security alarm monitoring services for go Pre-Solicitation
S206--Unarmed Security Guards at the SLVHCS POP: 12/20/2026 - 12/19/2027 4 Option Years POC: Christopher Rossi Pre-Solicitation · Veterans Integrated Service Network 16 (VHA)
Troubleshooting and repair of access control panels on the Superior National Forest Solicitation · Forest Service
S206--691 | North Campus Security Staffing | PoP: 05/14/2027 - 12/31/2028 Pre-Solicitation · Veterans Integrated Service Network 22 (VHA)
Enterprise Electronic Security Systems (ESS) — Nationwide Operations, Maintenance, Integration, and Lifecycle Support Pre-Solicitation · Department of Health and Human Services
Notice of Intent to Single Source- Construction Surveillance Technicians Special Notice · Pacific Air Forces (USAF)
Security Services at Davis and Parker Dams Pre-Solicitation
Local Guard Forces US Mission Dhaka, Bangladesh Award Notice · Office of Acquisition Management —
Notice of Intent to Sole Source - Replacement Marine Fire Detection and Alarm System – Motor Vessel Quincy Special Notice · ENDIST Rock Island (USACE)
Local Guard Forces U. S. Mission Santiago, Chile Award Notice · Office of Acquisition Management —
Security Guard Services Wilkes-Barre VAMC CBOCs Award Notice · Veterans Integrated Service Network 4 (VHA) —
J042--Fire Alarm System Monitoring and Programming INTENT TO SOLE SOURCE Special Notice · Veterans Integrated Service Network 12 (VHA)
J012-- Fire Alarm Suppression Maintenance & Repair Services Solicitation · Veterans Integrated Service Network 16 (VHA)
Access Control System upgrade Award Notice · US Special Operations Command —
Local Guard Services U. S. Mission Guatemala City, Guatemala Pre-Solicitation · Office of Acquisition Management
Video Surveillance System Replacement requirement at the Roman Hruska U. S. Courthouse in Omaha, Nebraska Award Notice · Office of Procurement Operations —
Cleared American Guards(CAGs)and Construction Surveillance Technicians (CSTs) Pre-Solicitation · Office of Acquisition Management
W9124G26CBARRACKS Solicitation · MICC Fort Eustis
Fire Protection Services at USCG Air Station Sacramento Special Notice
Security Gate Maintenance and Repair Services Aberdeen Test Center, Aberdeen Proving Ground, MD Pre-Solicitation · ACC Aberdeen Proving Ground
J063 Service and Software Updates to Security Access Control and Camera Systems Across Idaho/ Eastern Oregon VA Locations Pre-Solicitation · Veterans Integrated Service Network 20 (VHA)
282CBCS CCTV System Limited / Sole Source Justification · Army National Guard —
Forensic Polygraph services Solicitation · Administrative Office of the U.S. Courts
R430--Unarmed Security Guards, 11/01/2026 - 10/31/2027, 508C75732 Award Notice · Veterans Integrated Service Network 7 (VHA) —
Justification For Exception to Fair Opportunity - Global Protective Services (GPS) Erbil, Iraq Limited / Sole Source Justification · ACC Rock Island —
Notifiers Award Notice · Office of Acquisition Management —
N0017327Q5303 - Preventative Maintenance for Security Systems in Guam Special Notice · Office of Naval Research (SECNAV)
Electronic Security Systems Solicitation · ACC Rock Island
Batavia Detention Infrastructure Limited / Sole Source Justification · Immigration and Customs Enforcement —
Fire Alarm/Suppression Inspection, Testing, and Maintenance Pre-Solicitation · Air Force Research Laboratory (AFMC)
Armed Protective Security Services - IRS Campus in Austin, TX Pre-Solicitation · Office of Procurement Operations
Regional security operation services for naval district washington Limited / Sole Source Justification · Naval Facilities Engineering Command (Navy) —
Security Gates and Turnstiles Pre-Solicitation · Department of the Army
JOFOC – Technical Surveillance Countermeasures (TSCM) Services – Bridge Contract Limited / Sole Source Justification · Headquarters —
Advanced Programs-OMN-Security System Maintenance Pre-Solicitation · Naval Air Systems Command (Navy)
USACE MVK's JBLMRM Security Camera Replacement Award Notice · ENDIST Vicksburg (USACE) —
Level II-Armed Protective Security Officers Indiana Solicitation · Federal Emergency Management Agency
H112--Fire Alarm Sprinkler Inspection IDIQ SFVAHCS Award Notice · Veterans Integrated Service Network 23 (VHA) —
Fire Alarm Equipment Replacement at FCI Allenwood Limited / Sole Source Justification · BOP Field Acquisition Office —
Parma cboc security services Award Notice · Veterans Integrated Service Network 10 (VHA) —
S206--Unarmed Security Guard Contract Award Notice · Veterans Integrated Service Network 16 (VHA) —
USFS, Corvallis Forestry Sciences Lab (CFSL) Annual Inspection of Fire Alarm System and Fire Sprinkler System Award Notice · Forest Service —
Notice of Award, Honeywell International fire alarm maintenance services Award Notice · Air Force Space Command (USAF) —
Protective Security Officer Services, Los Angeles Area Solicitation · Office of Procurement Operations
Miami Warehouse CCTV Upgrade Award Notice · Drug Enforcement Administration —
Show 38 more

Latest 48 of 23,808 listed here. See the rest on GovTribe.

Codes under 5616

NAICS code
56161 Investigation, Guard, and Armored Car Services
56162 Security Systems Services

Definition

This industry group comprises establishments primarily engaged in one of the following: (1) investigation, guard, and armored car services; (2) selling security systems, such as burglar and fire alarms and locking devices, along with installation, repair, or monitoring services; or (3) remote monitoring of electronic security alarm systems.

Quick answers

What is NAICS 5616?

NAICS 5616 is Investigation and Security Services, an industry group in NAICS 56, Administrative and Support and Waste Management and Remediation Services.

What codes are under NAICS 5616?

NAICS 5616 has 2 codes under it with their own GovTribe pages: 56161 Investigation, Guard, and Armored Car Services and 56162 Security Systems Services.

How much do federal agencies spend under NAICS 5616?

Federal contracts under NAICS 5616 obligated $7,642,957,606 in fiscal year 2025 and $30,694,059,078 in fiscal years 2023 through 2027.

Who are the largest contractors under NAICS 5616?

The contractors with the most obligated under NAICS 5616 in fiscal years 2026 and 2027 are Amentum Services, Inc. ($725,164,325); The GEO Group, Inc. ($648,110,424); and Metropolitan Security Services, Inc. ($626,129,460).

Which agencies buy the most under NAICS 5616?

The agencies that obligated the most under NAICS 5616 in fiscal years 2026 and 2027 are Department of Homeland Security ($4,940,158,208), Department of State ($801,925,944) and Administrative Office of the U.S. Courts ($716,621,480).

Which PSC codes are used with NAICS 5616?

The PSC codes with the most obligated under NAICS 5616 in fiscal years 2026 and 2027 are S206 Guard Services, R430 Support – Professional: Physical Security and Badging and R615 Support – Administrative: Background Investigation.

Where is the work under NAICS 5616 performed?

By place of performance, the states with the most contract obligations under NAICS 5616 over the last 12 months are Texas ($1,272,943,965), Virginia ($1,039,152,782) and California ($905,981,791).

What is the latest contract opportunity under NAICS 5616?

The latest contract opportunity under NAICS 5616 is Tobyhanna Gates & Turnstiles, solicitation from Department of the Army, posted October 22, 2026.

On GovTribe

See everything under NAICS 5616

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