All States
WI
Wisconsin Federal Contractors
Search SAM.gov-registered federal contractors based in Wisconsin. Filter by NAICS code, certifications, small business status, and more — all via the GovData Labs API.
Search Wisconsin contractors
Use the state=WI parameter to filter results to Wisconsin. Combine with any other search parameter.
All contractors in WI
curl "https://api.govdatalabs.com/api/v2/data/entities/search?state=WI&limit=5" \
-H "X-API-Key: your_api_key"Small business cybersecurity firms in WI
curl "https://api.govdatalabs.com/api/v2/data/entities/search?state=WI&naics=541512&small_business=true&limit=5" \
-H "X-API-Key: your_api_key"Top industries in Wisconsin
Combine state and NAICS filters to find contractors by industry in Wisconsin.
541330
Engineering Services
541511Custom Computer Programming Services
541512Computer Systems Design Services
541611Administrative Management Consulting
541620Environmental Consulting Services
541715R&D in Engineering and Physical Sciences (except Nanotech and Biotech)
518210Data Processing and Hosting Services
236220Commercial and Institutional Building Construction
561210Facilities Support Services
561720Janitorial Services
Major federal agencies awarding in Wisconsin
These agencies award significant contract volume to Wisconsin-based contractors.
Get Wisconsin contractor data via API
Free sandbox — 100 requests/month, no credit card. Search all SAM.gov entities in WI and beyond.