The PTO is dedicated to showing industry the beneficial results of using fieldbuses in general and PROFIBUS and PROFINET in particular while assisting device manufacturers throughout North America in the development and marketing of PROFIBUS and PROFINET products.

Over 1300 companies organized in 25 Regional PROFIBUS Associations develop and supply Fieldbus and Industrial Ethernet solutions for cost efficient and highly reliable automation. PROFIBUS International (PI) is the global, umbrella organization for the 25 regional associations. PI is the largest fieldbus organization and has been doing business since 1989. Our standardization efforts and our commitment to openness guarantee leading-edge, certified-interchangeable products from a wide range of suppliers. PROFINET products are being released at an increasing rate and there are already over 2500 PROFIBUS products from over 400 vendors. To find products for your application, please visit our Product Guide. As one of those 25 local PROFIBUS and PROFINET organizations, PTO, a non-profit, member organization, is responsible for North America. Members of the PTO are vendors of hardware, software and systems as well as end users and operators, scientific institutes, universities, distributors, and system integrators.