NAICS 236220: Commercial and Institutional Building Construction — Federal Contracts

What NAICS 236220 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 236220 identifies businesses primarily engaged in commercial and institutional building construction. 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 236220?

The federal agencies awarding the most contract value to vendors in this NAICS, based on 131 contractors tracked in the Mindy contractor database:

1. 1Dept Of The Army
2. 2Dept Of The Navy
3. 3Dept Of The Air Force
4. 4Bureau Of Engraving And Printing
5. 5Defense Logistics Agency

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

Top contractors in NAICS 236220

The largest prime contractors associated with NAICS 236220, ranked by total reported federal contract value. These are your most likely incumbents — and your most likely teaming partners on recompetes:

1. 1
   Honeywell International INC.

   $4.1B total reported value
2. 2
   Hensel Phelps Construction CO.

   $1.3B total reported value
3. 3
   Aptim Federal Services LLC

   $1.1B total reported value
4. 4
   Clark Construction Group LLC

   $824.6M total reported value
5. 5
   Clark Construction LLC

   $652.6M total reported value
6. 6
   Aecom Technical Services INC.

   $649.3M total reported value
7. 7
   Environmental Chemical Corporation

   $604.3M total reported value
8. 8
   Brasfield & Gorrie L.L.C.

   $585.5M total reported value

Values reflect each contractor's aggregate reported federal contract value (across all of their NAICS codes, not just 236220). Use as a ranking signal, not as a per-NAICS award total.