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
$21.1B
Total awards
80,118 awards
Active obligations
$4B
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.

FY2026 snapshot

Obligations
$626M
Awards
2,334
Average award
$268.2K
Change from FY2025
+14.5%

Recent awards

Search contractors

$900,000

TDS FRAWNER, LLC

US Customs and Border Protection

PIID
70B01C26P00000544
PSC
Z1FA - MAINTENANCE OF FAMILY HOUSING FACILITIES

$699,677

THE BLACK BARONS GROUP LLC

US Customs and Border Protection

PIID
70B01C26P00000553
PSC
Z1FA - MAINTENANCE OF FAMILY HOUSING FACILITIES

$810,663

IPS, INC.

US Customs and Border Protection

PIID
70B01C26C00000175
PSC
Z2JZ - REPAIR OR ALTERATION OF MISCELLANEOUS BUILDINGS

$24,512

NOLAND TOUGH FENCE, LLC

Forest Service

PIID
127EAV26P0029
PSC
Z2PZ - REPAIR OR ALTERATION OF OTHER NON-BUILDING FACILITIES

$61,320

PERIMETER SECURITY GROUP, LLC

US Coast Guard

PIID
70Z03326PSEAT0151
PSC
Z2PZ - REPAIR OR ALTERATION OF OTHER NON-BUILDING FACILITIES

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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