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HomeBrowseWashingtonNAICS561611
NAICS 561611WashingtonAdministrative Services

Investigation Services Contracts
in Washington

Investigation, background check, and security clearance support services for government agencies. Browse active Washington state, local, and federal contracts under NAICS 561611. Average contract value $1.5M.

561611
NAICS Code
$1.5M
Avg Contract Value
Administrative Services
Industry
$10B+
State Market
Get Alerts for NAICS 561611 in WashingtonAll Washington Contracts

About NAICS 561611Investigation Services

NAICS 561611 covers investigation, background check, and security clearance support services for government agencies. Government agencies at every level — federal, state, and local — regularly procure services and products under this classification. Businesses registered under NAICS 561611 are eligible to compete for set-aside contracts across all 50 states and at the federal level.

In Washington, NAICS 561611 contracts are issued by state agencies, local municipalities, and federal agencies operating in the state. The average contract value for this NAICS code is $1.5M, making it accessible to small and mid-sized businesses. Washington contractors should register on the state procurement portal in addition to SAM.gov to capture the full opportunity set.

Top Federal Buyers for NAICS 561611

These federal agencies are the largest buyers of investigation services services nationally. Each maintains active procurement programs and awards contracts under NAICS 561611 regularly.

OPM
DoD
DHS
FBI
Intelligence Agencies

How to Win Investigation Services Contracts in Washington

1
Register NAICS 561611 in SAM.gov

Your SAM.gov registration must include NAICS 561611 to appear in federal searches and qualify for set-aside contracts in Washington and nationwide. Update your registration immediately if this code is missing.

2
Register on Washington procurement portal

State contracts in Washington require separate vendor registration. Register on the state portal and select commodity codes matching NAICS 561611 to receive solicitation notifications.

3
Pursue applicable certifications

8(a), HUBZone, SDVOSB, and WOSB certifications open set-aside contract pools specifically for NAICS 561611. Each certification reduces your competition pool significantly and adds sole-source contract eligibility.

Monitor and respond quickly

Set up real-time alerts for NAICS 561611 contracts in Washington. First movers get more Q&A time, better subcontractor quotes, and more proposal preparation time — all of which directly improve win rates.

Related Search Terms

investigation servicesbackground checkssecurity investigationsclearance supportintelligence supportwashington investigation serviceswashington government cybersecurityNAICS 561611 washingtoncybersecurity contracts Washington

Related NAICS Codes in Washington

541515Computer Systems Design and Cybersecurity Services
928110National Security
334511Search, Detection, Navigation and Guidance Systems Manufacturing