National Rural Transit Assistance Program
- The purpose of RTAP is to provide a coordinated program of training, technical assistance, research and other support services to improve the delivery of transit services in rural areas.
- http://www.nationalrtap.org/

Department of Defense Procurement Technical Assistance Center
- PTA Centers are a local resource available at no or nominal cost that can provide assistance to business firms in marketing products and services to the Federal, state and local governments .
- http://www.dla.mil/db/procurem.htm

Local Technical Assistance Program (LTAP)
- LTAP is composed of a national network of centers - one in every state, Puerto Rico and regional centers serving tribal governments. The LTAP centers enable local counties, parishes, townships, cities and towns to improve their roads and bridges by supply
- http://www.ltapt2.org/