NAICS 541690: Other Scientific and Technical Consulting Services
Other Scientific and Technical Consulting Services is NAICS code 541690. A business is small under it with $19 million or less in average annual receipts. 13 federal contracts are open on SAM.gov under this code right now.
- SBA size standard
- $19 million or less in average annual receipts
- Open contracts now
- 13
- Federal spending, FY2026
- $1.9 billion
- Share won by small businesses
- 29%
- Small businesses registered
- 17,336
Open federal contracts for other scientific and technical consulting services
- MALDI Biotyper Sirius RUO equipment service agreement
Due in 1 dayOct 5, 2026
- Health Economics Analysis Services
Due in 5 daysOct 9, 2026
- MC CBRN Request For Information
Due in 5 daysOct 9, 2026
- Design Basis Threat (DBT) and Target Sets Security
Due in 8 daysOct 12, 2026
- Flow-Induced Vibration Review and Guidance
Due in 8 daysOct 12, 2026
- Respirator Fit Testing
Due in 8 daysOct 12, 2026
What NAICS 541690 covers
The Census Bureau's NAICS index lists these kinds of work under 541690:
- Agricultural consulting services
- Agrology consulting services
- Agronomy consulting services
- Biological consulting services
- Building envelope consulting services
- Chemical consulting services
- Dairy herd consulting services
- Economic consulting services
- Energy consulting services
- Entomology consulting services
- Geochemical consulting services
- Horticultural consulting services
- Hydrology consulting services
- Livestock breeding consulting services
The index lists 23 entries for this code in all.
Read the full definition, including what's excluded, on census.gov.
SBA size standard for 541690
To count as a small business for a contract assigned NAICS 541690, your business must have $19 million or less in average annual receipts. Receipts are averaged over your last five completed fiscal years.
From SBA's table of size standards, effective Mar 17, 2023. Confirm it with SBA's size standards tool before you certify your size.
Who buys other scientific and technical consulting services
Agencies that awarded the most under NAICS 541690 over the last three fiscal years, per USAspending.gov:
| Agency | Obligated |
|---|---|
| Agency for International Development | $1.4 billion |
| Department of the Air Force | $850.3 million |
| National Institutes of Health | $780.5 million |
| Department of the Army | $497.1 million |
| Department of the Navy | $330.5 million |
| Centers for Medicare and Medicaid Services | $292 million |
| Department of Energy | $253.8 million |
| Department of State | $153.5 million |
Open notices right now come from Dept of Defense (3), Department of Energy (2), Department of Health and Human Services (2), Nuclear Regulatory Commission (2), Department of Agriculture (1) and Department of Veterans Affairs (1).
Set-asides on open 541690 contracts
- No set-aside (full and open): 6
- Total small business set-aside: 5
- 8(a) set-aside: 1
- Indian small business economic enterprise: 1
Not sure which set-asides you qualify for? Try the free SBA certification screener, or read set-aside contracts, explained.
Your competition
17,336 businesses with active SAM.gov registrations are rated small under NAICS 541690, most of them in Virginia (2,343), Texas (1,677), Florida (1,513), California (1,445), Maryland (1,424). Look any of them up with the free CAGE code and UEI lookup.
Federal spending under 541690 by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $2.3 billion |
| FY2025 | $2.2 billion |
| FY2026 | $1.9 billion |
| FY2027 (so far) | $3.5 million |
Source: USAspending.gov, all contract awards with this NAICS code. Fiscal years start October 1.
Related NAICS codes
- 541611 Administrative Management and General Management Consulting Services
- 541612 Human Resources Consulting Services
- 541613 Marketing Consulting Services
- 541614 Process, Physical Distribution, and Logistics Consulting Services
- 541618 Other Management Consulting Services
- 541620 Environmental Consulting Services
Frequently asked questions
What is NAICS code 541690?
541690 is the 2022 NAICS code for Other Scientific and Technical Consulting Services. The Census Bureau's index lists work such as agricultural consulting services, agrology consulting services, agronomy consulting services under it. Federal contracting uses the 2022 codes.
What is the SBA size standard for NAICS 541690?
$19 million or less in average annual receipts. A business at or under that is small for contracts assigned this code. The current SBA table took effect Mar 17, 2023.
Are there government contracts for other scientific and technical consulting services?
Yes. 13 federal contract opportunities under NAICS 541690 are open on SAM.gov right now. Agencies obligated about $1.9 billion under this code in fiscal year 2026, according to USAspending.gov.
How do I add NAICS code 541690 to my SAM.gov registration?
Update your entity registration on SAM.gov and add the code on the Goods and Services page, in the Assertions section. You can list several NAICS codes and mark one as your primary. Changes are free.
Keep going
- Search other NAICS codes by keyword or company
- How to choose NAICS codes for government contracts
- NAICS codes with the most open federal contracts
FedReady is an independent company, not affiliated with SBA, SAM.gov, the Census Bureau or any government agency. Open-contract counts come from SAM.gov and update daily; spending figures come from USAspending.gov.