Commercial and Institutional Building Construction

Construction services for government buildings, facilities, and infrastructure.

NAICS 236220 · Sector 23: Construction

By Outrider Editorial Team · Updated October 7, 2026

SBA size standard

$45 million

Measured by average annual receipts over the last 5 fiscal years

SBA table effective March 2023

FY2025 federal spending

The Department of Defense bought 56% of the $30.6B obligated under 236220 in FY2025.

Contract awards
24,468
Contract vehicles (IDVs)
3,973

Top buying agencies

  1. Department of Defense$17.2B
  2. Department of Homeland Security$5.9B
  3. Department of Veterans Affairs$2.8B
  4. General Services Administration$1.2B
  5. Department of State$955.5M

FY2025 federal contract obligations, USAspending.gov

Commercial Building Construction (NAICS 236220) covers construction companies building commercial facilities and infrastructure. In government contracting, this includes companies constructing federal buildings, facilities, data centers, and government infrastructure projects.

What Businesses Fall Under This Code

236220 includes general contractors, construction companies, and building construction firms. In federal contracting, this includes companies constructing federal buildings, government facilities, data centers, and specialized infrastructure.

SBA Size Standard and What It Means

The SBA size standard for 236220 is $45 million in average annual receipts. With average annual receipts of $45 million or less, you count as a small business on contracts filed under this code.

Federal Spending in This Category

Federal construction spending exceeds $50 billion annually for buildings, facilities, and infrastructure. GSA manages federal real estate and construction projects. Agencies spend substantially on facilities maintenance, modernization, and new construction.

Top Agencies Buying in This Code

The General Services Administration (GSA) manages federal construction through the Federal Acquisition Service. The Department of Defense, Department of Veterans Affairs, and other agencies with extensive facilities procure construction services.

Tips for Tech Companies Using This Code

Register for 236220 if you perform construction or facility development work for federal agencies. If you're building data centers or government facilities, understand federal construction standards and compliance requirements. Show experience with federal construction contracting and prevailing wage compliance.

Pro Tip: If you're a tech company building federal data centers or specialized tech facilities, you may need 236220 alongside infrastructure codes (518210). Understand federal construction requirements and prevailing wage obligations.

Find out which agencies want what you build

Describe your product in plain English. Outrider finds the SBIR topics, OTAs, grants and contracts that fit, says why, and flags what could rule you out.