The SUB-Net database is a listing of subcontracting solicitations and opportunities posted by large prime contractors and other non-federal agencies.  SUB-Net has been used by state and local governments, non-profit organizaitons, colleges and universities, and even foreign governments to post solicitations and identify small businesses.

Subcontracting to a prime government contractor can be a good way to participate in the contracting process. Large businesses with prime contracts exceeding $650,000 (except for construction, which is $1.5 million) must provide a plan with subcontracting opportunities for all categories of small business. 

To find subcontracting opportunities, go to SUB-Net, SBA’s database, where you will be able to review the site to identify subcontracting opportunities that are in your area of expertise. It's easy to search by all solicitations or simply by entering in the NAICS Code of the industry you are interested in searching for a subcontract.