Federal Contracts in NAICS 541990 (All Other Professional, Scientific, and Technical Services)

1,410 total opportunities indexed 267 award notices 1,143 open / pre-award

What is NAICS 541990?

Catch-all NAICS for professional services not classified elsewhere — translation, expert-witness work, weather forecasting, paranormal investigation (yes, really), and consulting outside the management/engineering/IT silos.

SBA small-business size standard: $19.5M average annual receipts

Top Awardees in NAICS 541990

Vendor	Awards	Total Value
INALAB CONSULTING, INC. CAGE 4B5M3	24	$5.3M
MONTECH INC CAGE 6CT33	18	$2.1M
ILLUMINA, INC. CAGE 1WCS2	5	$2.7M
LBT DIAGNOSTIC RADIATION PHYSICS CONSULTING LTD CAGE 5DRF5	4	$786K
XCELLENT TECHNOLOGY SOLUTIONS, INC CAGE 41MK0	4	$2.8M
BATTELLE MEMORIAL INSTITUTE CAGE 79986	3	$93.7M
SAGE, LLC CAGE 8JN91	2	$647K
CCI CONSTRUCTION AND ENERGY SERVICES, LLC CAGE 847P7	2	$274K
DRODEX INC CAGE 6QTS6	2	$2.9M
TECH62 INC CAGE 6DX32	2	$509K
MICHIGAN STATE UNIVERSITY CAGE 4B834	2	$180K
A.I.S., Inc. CAGE 1HBX3	2	$25.8M
PAR EXCELLENCE SYSTEMS, INC CAGE 65TR8	2	$58K
AKIMA SYSTEMS ENGINEERING LLC CAGE 7W2J0	2	$142K
Viktor Stanislav Butkovich CAGE 17QM4	1	$39K
Dylan Stover CAGE 17QA5	1	$50K
HISTORICAL RESEARCH ASSOCIATES, INC. CAGE 0KCU2	1	$249K
BOOZ ALLEN HAMILTON INC CAGE 17038	1	$13.6M
OPERATION BENJAMIN LLC CAGE 16T10	1	$2.8M
CLARK POWELL ASSOCIATES INC CAGE 0HKJ3	1	$500K

Award Trends (2024-2026)

Year	Awards	Total Obligated
2026	188	$1.1B
2025	66	$179.2M
2024	13	$25.6M

Top Buying Agencies

Agency	Solicitations
DEPT OF DEFENSE	543
INTERIOR, DEPARTMENT OF THE	222
GENERAL SERVICES ADMINISTRATION	136
VETERANS AFFAIRS, DEPARTMENT OF	119
HEALTH AND HUMAN SERVICES, DEPARTMENT OF	94
COMMERCE, DEPARTMENT OF	65
TRANSPORTATION, DEPARTMENT OF	43
HOMELAND SECURITY, DEPARTMENT OF	34
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION	23
STATE, DEPARTMENT OF	23

Set-Aside Breakdown

Set-Aside Type	Opportunities
Open / Full and Open	686
NONE	267
SBA	265
SDVOSBC	86
8A	49
WOSB	20
SDVOSBS	12
8AN	9
HZC	7
BICiv	6
SBP	2
VSA	1

Active Opportunities

Title	Agency	Deadline
MAARNG HRF Supported Collective Training Exercise (SCTE) Support Services	DEPT OF DEFENSE	2026-07-15T23:00:00+02:00
Engine Water Sample Testing for MH-65E aircraft	HOMELAND SECURITY, DEPARTMENT OF	2026-08-10T16:00:00+02:00
Army Capabilities Integration and Development System (ACIDS) Analysts Sources Sought	DEPT OF DEFENSE	2026-07-24T16:00:00+02:00
GLAC ANNUAL FIRE EXTINGUISHER SERVICE & INSPECTION	INTERIOR, DEPARTMENT OF THE	2026-07-27T20:00:00+02:00
Onsite Integrated Supply Chain Management Support - Service Contract - F/A-18	DEPT OF DEFENSE	2026-07-17T02:00:00+02:00
Solicitation for Substance Abuse Control Officer (SACO) Management Services	DEPT OF DEFENSE	2026-07-20T09:30:00+02:00
Histopathology and antibody screening of Hutchinson Gilford progeria syndrome mouse model DNA editing therapeutic precli	HEALTH AND HUMAN SERVICES, DEPARTMENT OF	2026-07-20T15:00:00+02:00
H--GLAC ANNUAL FIRE EXTINGUISHER SERVICE & INSPECTION	INTERIOR, DEPARTMENT OF THE	2026-07-27T20:00:00+02:00
One Acquisition Solution for Integrated Services Plus (OASIS+) Total Small Business Set-Aside Continuously Open	GENERAL SERVICES ADMINISTRATION	2027-01-11T22:00:00+01:00
One Acquisition Solution for Integrated Services Plus (OASIS+) Unrestricted Continuously Open Solicitation	GENERAL SERVICES ADMINISTRATION	2027-01-11T22:00:00+01:00

How to Bid Federal Contracts in NAICS 541990

Because this is a catch-all, bid strategy depends heavily on the specific sub-domain. Keyword-search opportunities by 'PSC code' (Product Service Code) within NAICS 541990 to find ones that match your firm's actual service line.

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