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Subcontracting in NAICS 561990: All Other Support Services

Large federal prime contractors must adopt a small-business subcontracting plan on contracts above $900,000 ($2 million for construction) under FAR 19.702, with goals for small, women-owned, HUBZone, veteran-owned and service-disabled veteran-owned businesses. SBA's directory lists 11 primes with such plans on 25 contracts in NAICS 561990 (FY2023 and FY2024), 0 of them still active, with $243,326,302 in total contract value. These are the companies to approach about subcontracting work in this industry.

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Open subcontracting opportunities (SBA SubNet)

Opportunity	Prime / company	NAICS	Place	Closes
Caltrans IFB 10A2923 ↗ Multi-Provider On-Call and As-Needed Positive Location of Underground Utility Facility Services – Also seeking DVBE…	MP Nexlevel	561990	California	Oct 20, 2026
MI 2026-11 Paper Shredding Services ↗ Adams and Associates, Inc., contracting for the U.S Department of Labor for the operation of the Miami Job Corps…	Miami Job Corps Center	561990	Florida	Oct 23, 2026
23001 SX0 ↗ Looking for MWBEs for Baltimore County-DPW, 23001 SX0 Long Quarter Interceptor Rehabilitation. Please send quote to…	Spiniello Companies	237110, 237310, 561990, 238910, 237990	Maryland	Oct 29, 2026
WC 1456 Lead Pipe Inspection ↗ Looking for MWBEs for City of Baltimore-DPW, WC 1456 Lead Pipe Inspection and Replacement, please send quote to…	Spiniello Companies	237110, 237310, 561990, 238910, 541730, 237990	Maryland	Nov 4, 2026
20127 SX0 Jennifer ↗ Looking for MWBEs for Baltimore County-DPW, 20127 SX0 Jennifer Branch Relief Sewer, Please send quote to…	Spiniello Companies	237110, 237310, 561990, 238910, 541370, 237990, 561730	Maryland	Nov 5, 2026
WOJC - Fire Protection Systems Inspection, Testing, and Maintenance - December 1, 2026… ↗ This project is a subcontracting opportunity. ETR/Westover Job Corps Center, located at 103 Johnson Road, Chicopee, MA…	Westover Job Corps Center	561990	Massachusetts	Nov 6, 2026
WC 1464 Lead Pipe Inspection ↗ Looking for MWBEs for City of Baltimore-DPW, WC 1464 Lead Pipe Inspection and Replacement, please send quote to…	Spiniello Companies	237110, 237310, 561990, 238910, 541730, 237990	Maryland	Nov 18, 2026

Contact details are on each SBA SubNet listing. Ask questions to the listed contact, not SBA.

Prime contractors with subcontracting plans

Sorted by the value of active contracts. Look up each prime's small-business or supplier diversity page and register in its supplier portal.

Prime contractor	Location	Contracts (active)	Contract value	Main agencies	Latest end
Sierra Nevada Corporation	Sparks, Nevada	11 (0)	$85,331,091	Dept of the Air Force	Jul 30, 2025
Vertex Modernization and Sustainment LLC	Indianapolis, Indiana	1 (0)	$37,927,964	Dept of the Air Force	Jul 14, 2025
Booz Allen Hamilton Inc Parent: Booz Allen Hamilton Holding Corporation	MC Lean, Virginia	2 (0)	$34,243,253	Department of Energy	Feb 29, 2024
Sourceamerica Parent: Nish	Vienna, Virginia	1 (0)	$28,000,000	Internal Revenue Service	Sep 30, 2024
General Atomics Aeronautical Systems, Inc. Parent: General Atomic Technologies Corporation	Poway, California	4 (0)	$22,316,160	Dept of the Air Force	Feb 28, 2025
Cgi Federal Inc. Parent: Cgi Inc	Fairfax, Virginia	1 (0)	$21,432,232	Department of State	Aug 26, 2024
Centerra Group, LLC Parent: Centerra Group LLC	Palm Beach Gardens, Florida	1 (0)	$7,731,903	Dept of the Air Force	Sep 30, 2016
General Dynamics Land Systems Inc. Parent: General Dynamics Corporation	Sterling Heights, Michigan	1 (0)	$2,940,417	Dept of the Army	Nov 30, 2023
Didlake Inc	Manassas, Virginia	1 (0)	$1,626,286	Internal Revenue Service	Feb 28, 2025
Raytheon Company Parent: Raytheon Technologies Corporation	Mckinney, Texas	1 (0)	$988,386	Dept of the Air Force	Nov 4, 2023
Aptim Federal Services, LLC Parent: Aptim Federal Services LLC	Alexandria, Virginia	1 (0)	$788,610	Federal Emergency Management Agency	May 6, 2023

About this data

Primes: SBA's Directory of Federal Government Prime Contractors with Subcontracting Plans (FY2023 and FY2024 editions, the latest SBA has published), built from FPDS-NG. The agency that entered each record owns the data; questions about a contract go to that agency. "Active" means the listed completion date is today or later. Contract value is the base and all options value. We group contracts by the prime's UEI. Open opportunities: SBA SubNet, checked Oct 18, 2026 and weekly. AwardWatchdog is not affiliated with SBA or any prime listed here.

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