NAICS 541330: Engineering Services — Federal Contracts

What NAICS 541330 covers

The North American Industry Classification System (NAICS) is the standard the federal government uses to classify the industry of every contractor and every procurement. NAICS 541330 identifies businesses primarily engaged in engineering services. When a contracting officer publishes a solicitation on SAM.gov, they tag it with the NAICS code that best matches the work — which is why getting your NAICS portfolio right inside SAM is the single most important step for showing up in agency searches.

Who buys NAICS 541330?

The federal agencies awarding the most contract value to vendors in this NAICS, based on 411 contractors tracked in the Mindy contractor database:

1. 1Dept Of The Navy
2. 2Dept Of The Army
3. 3Dept Of The Air Force
4. 4Defense Logistics Agency
5. 5Centers For Medicare And Medicaid Services

Source: aggregated from the Mindy contractor database (prime contractor disclosures via SBA + agency directories).

Top contractors in NAICS 541330

The largest prime contractors associated with NAICS 541330, ranked by total reported federal contract value. These are your most likely incumbents — and your most likely teaming partners on recompetes:

1. 1
   Booz Allen Hamilton INC

   $10.7B total reported value
2. 2
   General Dynamics Corporation

   $9.6B total reported value
3. 3
   CACI INC. - Federal

   $8.8B total reported value
4. 4
   Deloitte Consulting LLP

   $6.6B total reported value
5. 5
   General Dynamics Information Technology INC.

   $5.3B total reported value
6. 6
   Science Applications International Corporation

   $5.1B total reported value
7. 7
   Leidos INC.

   $5.1B total reported value
8. 8
   Lockheed Martin Corporation

   $4.5B total reported value

Values reflect each contractor's aggregate reported federal contract value (across all of their NAICS codes, not just 541330). Use as a ranking signal, not as a per-NAICS award total.