All Other Support Services — NAICS 561990
Browse federal contract opportunities classified under NAICS code 561990 (All Other Support Services). Find active solicitations on SAM.gov, understand size standards, and discover set-aside opportunities for your business.
About NAICS 561990
All Other Support Services. This industry falls under the Administrative and Support and Waste Management sector (NAICS codes beginning with 56).
Federal agencies use NAICS code 561990 when posting contract opportunities on SAM.gov to classify the type of work being solicited. Businesses that operate in the all other support services space should include this code in their SAM.gov registration and capability statements to ensure they appear in relevant searches.
How to Use NAICS 561990 in Federal Contracting
To compete for federal contracts under NAICS 561990, your business should be registered in SAM.gov with this NAICS code listed in your entity profile. When agencies post solicitations for all other support services work, they reference this code to determine the applicable small business size standard and any set-aside eligibility.
If you hold certifications such as 8(a), HUBZone, SDVOSB, or WOSB, you may be eligible for set-aside contracts under this NAICS code. These set-asides limit competition to certified small businesses, giving you a significant advantage in winning federal work.
FedOverwatch monitors SAM.gov daily and can automatically match you with new opportunities under NAICS 561990. Set up your profile with your NAICS codes and certifications to receive personalized contract alerts.
NAICS 561990 Market Intelligence
Based on 3 years of federal award data from USAspending.gov, the all other support services market has seen 9,879 contract awards totaling $5.4B in value. The median contract size is $44K, with approximately 274 new awards per month.
Total Awards (3yr)
9,879
Total Value
$5.4B
Median Contract
$44K
Competitors
1,277
Contract value distribution
4,810 small business awards ($836.9M total value,$29K median)
1,277 companies compete for NAICS 561990 contracts
See who's winning, their award values, and where you fit in the market
Explore CompetitorsSize Standards
The SBA establishes size standards for each NAICS code to define what qualifies as a "small business" for federal contracting purposes. For NAICS 561990 (All Other Support Services), the size standard is based on either average annual receipts or number of employees, depending on the specific industry. Meeting the size standard for your primary NAICS code is required to qualify for small business set-aside contracts.
Visit the SBA Size Standards Table to find the current threshold for NAICS 561990.
Recent NAICS 561990 Opportunities
View all →The Department of Veterans Affairs is procuring shredding services for a five-year period, including a base year and four option years. The contractor will be responsible for securely shredding documents as per the agency's requirements to ensure confidentiality and compliance with regulations.
The Department of Justice is establishing an Indefinite Delivery/Indefinite Quantity (IDIQ) contract for the Federal Bureau of Investigation's Directorate of Intelligence to procure Internet/Cyber Security Data Subscriptions. This contract will support Open Source Intelligence and Social Media searches using License Plate Reader tools to identify investigative threats and meet the needs of various users while adhering to legal and regulatory requirements.
The Indian Health Service is procuring shredding services for the Whiteriver Service Unit. The key requirements include secure document destruction to ensure confidentiality and compliance with regulations.
The Department of the Army is procuring services related to the Yellow Ribbon program, which supports service members and their families. Key requirements include providing necessary resources and support for the program's implementation and effectiveness.
NISTRATIVE: pport Services Solic
The Department of Defense is procuring support services for the 1172nd Pre Yellow Ribbon event, which includes meals but no lodging, to be held in Tennessee. The procurement is unrestricted and requires quotes to be submitted by May 29, 2026, for an event scheduled on August 23, 2026.
N pport Services 19 May 2026: Answers to all submitte
The Department of Defense is procuring parking management services for the 2026 Offutt Air Force Base Air and Space Show, scheduled for August 8th and 9th, 2026. The contractor will be responsible for all tasks outlined in the Statement of Work. Proposals are due by May 26, 2026, at 11:00 am CDT.
Frequently Asked Questions
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