NAICS 541350
Building Inspection Services
Federal contractor footprint · 110 profiled contractors
Combined Contractor Footprint
$96.2M
Obligations under NAICS 541350 across the 110 GovExpress-profiled contractors that report the code. Not total federal spending in the code, and not de-duplicated across corporate families that file under more than one parent record.
Top Federal Contractors — Building Inspection Services
Obligations under NAICS 541350 across the 110 GovExpress-profiled contractors that report the code. Not total federal spending in the code, and not de-duplicated across corporate families that file under more than one parent record.
- NATIONAL OPINION RESEARCH CENTER$36.7M
- CHINOOK SYSTEMS INC$31.0M
- E.F. KEARNEY, LIMITED$14.6M
- T1 CONSTRUCTION LLC$4.2M
- SYSTEMS PLANNING AND ANALYSIS, INC.$2.8M
- RIVERSIDE RESEARCH INSTITUTE$2.7M
- KNOWESIS, INC.$1.4M
- GREAT HILL SOLUTIONS, LLC$1.1M
- TEPA, LLC$528K
- HDR, INC$498K
Agencies Buying This Code
Estimated by weighting each profiled contractor's agency mix by its NAICS 541350 footprint. Directional, not an agency-by-code total.
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Obligations under NAICS 541350 across the 110 GovExpress-profiled contractors that report the code. Not total federal spending in the code, and not de-duplicated across corporate families that file under more than one parent record. Spending data from FPDS-NG via USASpending.gov, read between 2026-09-22 and 2026-10-27. Standard 90-day reporting lag per FAR 4.606(c). Read the full methodology.