Federal NAICS Codes

NAICS 541990

All Other Professional, Scientific, and Technical Services

Explore obligations, trends, recent awards, and incumbent contractors for NAICS 541990.

NAICS 541990 federal market metrics

Total obligations
$361.5B
Total awards
124,173 awards
Active obligations
$50.8B
Size standard
$19,500,000 receipts

What this NAICS covers

NAICS 541990 covers professional, scientific, and technical services that are not classified elsewhere by other NAICS codes, including specialized advisory, analytic, testing, or program support services provided on a project or task basis.

Federal opportunities under 541990 typically involve acquiring discrete professional or technical services not classified elsewhere, such as specialized studies, testing projects, subject-matter advisory tasks, or short-term program support defined by specific scopes and deliverable-based statements of work.

FY2025 snapshot

Obligations
$4.4B
Awards
3,457
Average award
$1.3M
Change from FY2024
-51.9%

Recent awards

Search contractors

$44,981

PENELOPE GRACE DIAMOND

US Geological Survey

PIID
140G0126P0185
PSC
B533 - SPECIAL STUDIES/ANALYSIS- WATER QUALITY

$53,144

THE GORDIAN GROUP, INC.

Office of the Assistant Secretary for Administration and Management

PIID
1605C526P00003
PSC
R702 - SUPPORT- MANAGEMENT: DATA COLLECTION

$2,684,503

COMPASS LEXECON LLC

Internal Revenue Service

PIID
2023H226C00025
PSC
R424 - SUPPORT- PROFESSIONAL: EXPERT WITNESS

$17,472

CLIFF HOUSE LLC

Farm Production and Conservation Business Center

PIID
12FPCP26F0016
PSC
G008 - SOCIAL- GOVERNMENT INSURANCE PROGRAMS: OTHER

$5,000

DOWN RANGE SERVICES LLC

Atf Acquisition and Property Mgmt Div

PIID
15A00026FABP00465
PSC
R499 - SUPPORT- PROFESSIONAL: OTHER

$356,974

VETS SYNERGETIC GROUP LLC

Food and Drug Administration

PIID
75F40126F19081
PSC
R799 - SUPPORT- MANAGEMENT: OTHER

$48,936

TRAYTON COLE WEBER

US Geological Survey

PIID
140G0226P0144
PSC
B525 - SPECIAL STUDIES/ANALYSIS- NATURAL RESOURCE

FAQ

What work fits NAICS 541990?
  • Specialized laboratory testing or analytical services procured as discrete task orders not covered by standard lab-supply contracts.
  • Niche technical assessments or specialty studies requiring uncommon subject matter expertise and special-purpose technical reports.
  • Short-term technical advisory on a narrow scientific problem producing specific deliverables such as test reports or expert analyses.
  • Field sampling and laboratory analysis contracted for a particular program where the service is not part of a larger engineering or construction contract.
When is NAICS 541990 a weak fit?
  • Engineering design and systems integration: projects requiring detailed engineering drawings, specifications, and integration responsibility, because registered engineering and design deliverables fall under other NAICS.
  • Product testing tied to manufacturing delivery: testing that is part of a larger production contract where the manufacturer retains responsibility, because the activity is subordinate to manufacturing rather than an independent technical service.
  • Experimental research and development creating prototypes and IP: long-term R&D programs aimed at developing new products or prototypes, because that work aligns with research and experimental development classifications rather than ad hoc technical services.
What solicitation language points to NAICS 541990?
  • Scope defines standalone technical tasks with deliverables such as specialized laboratory reports, technical memoranda, or targeted subject-matter analyses.
  • Evaluation factors prioritize niche technical qualifications, specialized laboratory accreditations, or past performance on similar discrete tasks.
  • Contract line items structured as task or time-and-material orders for specific analyses rather than as system development, manufacturing, or facility operations.

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