NAICS 541330: Engineering Services
Covers applying physical laws and engineering principles to design and develop structures, machines, processes, and systems — civil, mechanical, electrical engineering, and engineering studies for government infrastructure and facilities.
Federal contracts awarded under NAICS 541330
Since Oct 2024, federal agencies recorded 41,322 contract awards under NAICS 541330, obligating $96.4B. The largest buyer was the Department of Defense ($72.6B).
Top buying agencies
- 1. Department of Defense$72.6B
- 2. General Services Administration$10.0B
- 3. Department of Homeland Security$3.3B
- 4. Department of Transportation$3.2B
- 5. National Aeronautics and Space Administration$1.8B
Recent awards
- Department of Veterans Affairs · 2029-01-31
Project 667-23-112 (ae) renovate pharmacy cache
- Department of the Navy · 2028-12-18
High efficiency super capacity chiller common mode voltage testing & modeling
- International Boundary and Water Commission: U.S.-Mexico · 2028-08-22
---------- comments: services hsi the amistad power plant needs engineering consultant services to assist in de-register with nerc/…
- National Park Service · 2027-09-22
Eo 14398 - katmai national park - campside septic design
- Rs&H, INC.$90KDepartment of the Army · 2027-09-22
148th ae - repair perimeter road - fmkm242006
- Aes Group INC$1.4MDepartment of Veterans Affairs · 2027-08-20
Facility condition assessment of national cemetery administration continental district.
Source: USASpending.gov contract award data, refreshed weekly.Search awards
What work falls under NAICS 541330
- Civil/structural design for public infrastructure
- Mechanical/electrical/plumbing (MEP) engineering
- Engineering studies, assessments, and inspections
- A&E support under Brooks Act qualifications-based selection
How to win contracts under this code
- Register in SAM.gov with 541330 as a primary or secondary NAICS code, and confirm you're under the size standard for set-aside eligibility.
- Set a SAM.gov saved search for NAICS 541330 filtered to your set-aside types and places of performance.
- Build a capability statement that leads with this code and your most relevant past performance.
- For each solicitation, build a compliance matrix before writing — most losses under this code are compliance losses.
Win more NAICS 541330 contracts
Create a free account to track current 541330 opportunities, build a capability statement that leads with this code, and draft compliant proposals — all in one place.
Frequently asked questions
How are engineering services procured federally?
Architect-engineer services are selected under the Brooks Act: qualifications-based selection via SF330 submissions, with price negotiated after selection — not low-bid. Build your SF330 library early.
Can engineering firms also bid construction?
Design firms generally can't construct what they designed on the same project (organizational conflict of interest), but design-build teaming with a constructor is common and allowed when solicited that way.