About Us
Four Decades of Proven Experience
Since being founded in 1982, One Call Concepts has been a part of:
- Pioneering the software that set the standard for the industry
- Participating in the Common Ground Alliance’s original best practices study
- Working tirelessly on federal and state legislative efforts to support and advance our clients’ goals while increasing the impact of underground facility and infrastructure safety
We remain at the forefront of that evolution by working in partnership with our clients and continuously adapting our full-service solutions to meet changing industry needs.
Tom Hoff, Founder of One Call Concepts
Tom Hoff (retired) founded One Call Concepts, Inc. (OCC) over 40 years ago. At the time, he knew there was opportunity in the emerging one call industry, but he never foresaw the impact the company he founded would make.
Our History
Clients
OCC is the damage prevention industry’s most robust service provider.
Twenty-five percent of state notification centers–part of the national 811 Call Before You Dig system–rely on our notification services as well as software, reporting, accounting and marketing support.
Click on the map to learn more about how we partner with our clients to meet their unique needs.



