NAICS 541330: Engineering Services
Engineering Services is NAICS code 541330. A business is small under it with $25.5 million or less in average annual receipts. 153 federal contracts are open on SAM.gov under this code right now.
- SBA size standard
- $25.5 million or less in average annual receipts
- Open contracts now
- 153
- Federal spending, FY2026
- $43.1 billion
- Share won by small businesses
- 23%
- Small businesses registered
- 13,773
Open federal contracts for engineering services
- Environmental Training Operations (ETO) Support Services
Due in 1 dayOct 5, 2026
- Independent Engineering (IE) Advisory Services
Due in 1 dayOct 5, 2026
- Naval Ordnance Safety and Security Activity (NOSSA) Analytical, Technical and Management Support Solicitation N0017426R3101
Due in 1 dayOct 5, 2026
- Reentry Vehicle Integration Support Solicitation
Due in 2 daysOct 5, 2026
- Mission Assurance Services (A Dept.)
Due in 2 daysOct 6, 2026
- Warehouse Support Services Recompete
Due in 3 daysOct 7, 2026
What NAICS 541330 covers
The Census Bureau's NAICS index lists these kinds of work under 541330:
- Acoustical engineering consulting services
- Acoustical system engineering design services
- Audio visual system engineering design services
- Boat engineering design services
- Chemical engineering services
- Civil engineering services
- Combustion engineering consulting services
- Construction engineering services
- Consulting engineers' offices
- Consulting engineers' private practices
- Electrical engineering services
- Engineering consulting services
- Engineering design services
- Engineers' offices
The index lists 30 entries for this code in all.
Read the full definition, including what's excluded, on census.gov.
SBA size standard for 541330
To count as a small business for a contract assigned NAICS 541330, your business must have $25.5 million or less in average annual receipts. Receipts are averaged over your last five completed fiscal years.
Some contracts under this code use a different limit:
- Military and Aerospace Equipment and Military Weapons: $47 million or less in average annual receipts
- Contracts and Subcontracts for Engineering Services Awarded Under the National Energy Policy Act of 1992: $47 million or less in average annual receipts
- Marine Engineering and Naval Architecture: $47 million or less in average annual receipts
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 engineering services
Agencies that awarded the most under NAICS 541330 over the last three fiscal years, per USAspending.gov:
| Agency | Obligated |
|---|---|
| Department of the Navy | $66.8 billion |
| Department of the Air Force | $22.4 billion |
| Department of the Army | $15.2 billion |
| Federal Acquisition Service | $13.9 billion |
| Federal Aviation Administration | $4 billion |
| Defense Microelectronics Activity | $3 billion |
| National Aeronautics and Space Administration | $2.7 billion |
| Department of Energy | $1.6 billion |
Open notices right now come from Dept of Defense (136), Department of Transportation (5), Department of Energy (5), Department of Veterans Affairs (4), Department of Homeland Security (2) and Department of Health and Human Services (1).
Set-asides on open 541330 contracts
- No set-aside (full and open): 121
- Total small business set-aside: 31
- Service-disabled veteran-owned set-aside: 7
- 8(a) set-aside: 2
- Indian economic enterprise: 1
- Partial small business set-aside: 1
Not sure which set-asides you qualify for? Try the free SBA certification screener, or read set-aside contracts, explained.
Your competition
13,773 businesses with active SAM.gov registrations are rated small under NAICS 541330, most of them in Virginia (2,131), Florida (1,185), California (1,175), Texas (1,169), Maryland (1,086). Look any of them up with the free CAGE code and UEI lookup.
Federal spending under 541330 by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $52.5 billion |
| FY2025 | $51.7 billion |
| FY2026 | $43.1 billion |
| FY2027 (so far) | $8.9 million |
Source: USAspending.gov, all contract awards with this NAICS code. Fiscal years start October 1.
Related NAICS codes
- 541310 Architectural Services
- 541320 Landscape Architectural Services
- 541340 Drafting Services
- 541350 Building Inspection Services
- 541360 Geophysical Surveying and Mapping Services
- 541370 Surveying and Mapping (except Geophysical) Services
- 541380 Testing Laboratories and Services
Frequently asked questions
What is NAICS code 541330?
541330 is the 2022 NAICS code for Engineering Services. The Census Bureau's index lists work such as acoustical engineering consulting services, acoustical system engineering design services, audio visual system engineering design services under it. Federal contracting uses the 2022 codes.
What is the SBA size standard for NAICS 541330?
$25.5 million or less in average annual receipts. A business at or under that is small for contracts assigned this code. Some kinds of contracts under this code use a different limit. The current SBA table took effect Mar 17, 2023.
Are there government contracts for engineering services?
Yes. 153 federal contract opportunities under NAICS 541330 are open on SAM.gov right now. Agencies obligated about $43.1 billion under this code in fiscal year 2026, according to USAspending.gov.
How do I add NAICS code 541330 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.