Federal NAICS Codes

NAICS 238990: All Other Specialty Trade Contractors

Explore obligations, trends, recent awards, and incumbent contractors for NAICS 238990.

NAICS 238990 federal market metrics

Total obligations
$22.8B
Total awards
70,437 awards
Active obligations
$3.8B
Size standard
$19,000,000 receipts

What this NAICS covers

NAICS 238990 covers specialized construction and trade activities not covered by a more specific category, including on-site installation, alteration, maintenance, and finishing work for building components, systems, and proprietary construction products.

Federal opportunities under 238990 typically involve procurement of a specific trade contractor to perform discrete onsite tasks such as specialized installations, retrofits, repairs, or finishing work, with schedule coordination, applicable testing, code compliance, and final acceptance documentation.

FY2025 snapshot

Obligations
$416.5M
Awards
1,439
Average award
$289.4K
Change from FY2024
-28%

Recent awards

Search contractors

$2,865

RUTHRAUFF SAUER, LLC

Department of Veterans Affairs

PIID
36C78626P0097
PSC
Z2NA - REPAIR OR ALTERATION OF FUEL SUPPLY FACILITIES

$94,762

TATCO LLC

Indian Health Service

PIID
75H70626C00006
PSC
H312 - INSPECTION- FIRE CONTROL EQUIPMENT

$41,076

UPPER EDGE CONSTRUCTION LLC

National Park Service

PIID
140P6326P0034
PSC
Z2FA - REPAIR OR ALTERATION OF FAMILY HOUSING FACILITIES

$40,136

KASTEL ENTERPRISES MK LLC

Federal Aviation Administration

PIID
6973GH26C00187
PSC
Z2BA - REPAIR OR ALTERATION OF AIR TRAFFIC CONTROL TOWERS

$7,214

SPECIALTY FENCE & GATE, LLC

US Fish and Wildlife Service

PIID
140FS326P0171
PSC
Z2PZ - REPAIR OR ALTERATION OF OTHER NON-BUILDING FACILITIES

$81,360

CBS NICKLAUS JV, LLC

US Customs and Border Protection

PIID
70B01C26C00000077
PSC
Z1LB - MAINTENANCE OF HIGHWAYS/ROADS/STREETS/BRIDGES/RAILWAYS

FAQ

What work fits NAICS 238990?
  • Installation of custom environmental enclosures, lab fume hoods, or cleanroom components requiring specialized mounting and sealing procedures.
  • Precision equipment rigging and anchoring for large scientific instruments including foundation modifications and vibration isolation work.
  • Selective interior demolition or specialty abatement tied to a unique trade scope outside general demolition contracts.
  • Retrofit of specialty building systems such as high-voltage grounding mats, radio frequency shielding, or testing chambers when classified outside standard electrical or mechanical trades.
When is NAICS 238990 a weak fit?
  • General building construction where the contractor manages multiple trade disciplines, overall site coordination, and subcontractor integration; this NAICS excludes full general contracting responsibility.
  • Electrical contracting jobs that involve full electrical system design, wiring, and code compliance projects; this NAICS excludes primary electrical system scope that falls under electrical-specific codes.
  • HVAC and plumbing installations requiring licensed mechanical contractors and integrated system commissioning; this NAICS excludes core mechanical system contracts governed by specific mechanical trade NAICS.
What solicitation language points to NAICS 238990?
  • Statement of work describes a narrow, standalone installation or modification with distinct trade deliverables and project-specific shop drawings rather than full design-build responsibilities.
  • Bid attachments require trade-specific qualifications, specialized tooling lists, or proof of experience performing the named niche installation as the prime.
  • Performance schedule is short-duration, single-discipline tasks with payment milestones tied to discrete installation milestones instead of broader construction phases.

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