This industry comprises establishments primarily engaged in specialized trades (except foundation, structure, and building exterior contractors; building equipment contractors; building finishing contractors; and site preparation contractors). The specialty trade work performed includes new work, additions, alterations, maintenance, and repairs.
Illustrative Examples:
Billboard erection
Outdoor swimming pool construction
Paver, brick (e.g., driveway, patio, sidewalk), installation
Crane rental with operator
Paving, residential and commercial driveway and parking lot
Sandblasting building exteriors
Fence installation
Scaffold erecting and dismantling
Interlocking brick and block installation
Steeplejack work
Manufactured (mobile) home set up and tie-down work
Driveway paving or sealing
✓ Small Business Eligibility at a Glance
Based on SBA Table of Small Business Size Standards (2024)
Size Standard
$19M average annual receipts
Measurement Period
3-year average
Standard Type
Revenue-Based
Applies To
All contracts under NAICS 238990
Set-Aside Programs
8(a), WOSB, HUBZone, SDVOSB
Certification Required
No (self-certify in SAM.gov)
Size standards are set by the SBA and reviewed periodically. Always verify at SBA.gov before bidding.
Cross-References
The following activities are classified elsewhere in the NAICS system:
→Foundation, structure, and building exterior work--are classified in Industry Group 2381, Foundation, Structure, and Building Exterior Contractors;
→Installing, repairing, or maintaining building mechanical systems--are classified in Industry Group 2382, Building Equipment Contractors;
→Finishing buildings--are classified in Industry Group 2383, Building Finishing Contractors;
→Paving public highways, streets, and roads--are classified in Industry 237310, Highway, Street, and Bridge Construction;
→Construction equipment rental with an operator (except cranes), preparing land for building construction, or building demolition--are classified in Industry 238910, Site Preparation Contractors;
→Construction equipment rental without an operator--are classified in U.S. Industry 532412, Construction, Mining, and Forestry Machinery and Equipment Rental and Leasing;
→Radon testing--are classified in Industry 541380, Testing Laboratories and Services;
→Swimming pool cleaning and maintenance, power washing, and other building exterior cleaning (except sandblasting)--are classified in Industry 561790, Other Services to Buildings and Dwellings;
→Environmental remediation work, such as asbestos and lead paint abatement--are classified in Industry 562910, Remediation Services;
→Installing electronic containment fencing for pets--are classified in Industry 238210, Electrical Contractors and Other Wiring Installation Contractors; and
→Constructing indoor swimming pools--are classified in Industry 236220, Commercial and Institutional Building Construction.
How to Use NAICS 238990 in SAM.gov
NAICS code 238990 — All Other Specialty Trade Contractors — is used in SAM.gov to identify businesses whose primary activity falls within this classification. When you add this code to your SAM.gov entity registration, contracting officers searching for vendors in the Other Specialty Trade Contractors space will be able to find your business.
If this code represents your primary business activity, designate it as your primary NAICS code. Your primary NAICS code determines your size standard for any contract solicited under this code. With a size standard of $19M average annual receipts, your business must be at or below this threshold to qualify as a small business for set-aside contracts under NAICS 238990.
NAICS code 238990 is 'All Other Specialty Trade Contractors', classified under the Construction sector (NAICS 23). This industry comprises establishments primarily engaged in specialized trades (except foundation, structure, and building exterior contractors; building equipment contractors; building finishing cont
What is the SBA small business size standard for NAICS code 238990?
The SBA defines a small business under NAICS code 238990 (All Other Specialty Trade Contractors) as one with $19M average annual receipts. This size standard determines eligibility for small business set-aside contracts, 8(a), HUBZone, WOSB, and SDVOSB programs in SAM.gov.
How do I register NAICS code 238990 in SAM.gov?
To register NAICS code 238990 in SAM.gov: (1) Log in at sam.gov, (2) Navigate to your Entity Registration, (3) Go to the Assertions section, (4) Add 238990 (All Other Specialty Trade Contractors) to your NAICS code list. You may designate one code as your Primary NAICS code.