About Us > History



For over 30 years, One Call Concepts has provided high-quality, value-oriented solutions to one call centers across the United States, partnering with them toward the common goal of damage prevention. We have been on the forefront of developing innovative solutions and service models that have made the 811 Call Before You dig system a success nationwide.

View a full map of our company history.






A heritage grounded in underground damage prevention efforts


Company founded by Tom Hoff, President and CEO


First generation of one call center software, One Call Notification center for Excavation (ONCE System)


First PRISM installation


First positive response system installation


Ticket Check positive response system installation in Maryland


OCC ITIC installed for each center operated


ITIC Lite, first Web-based ticket entry system designed for the casual user, installation

Now and in the future, setting the bar higher for our industry

1980s: Building the Foundation

The first 10 years chronicles the company’s beginnings and subsequent development as the one call model was emerging—from One Call Concepts’ foundation, its first software and first customers.

1990s: Expanding and Evolving

One Call Concepts continues to grow, expand, and develop innovative call center software. The company’s reputation as a leader in damage prevention services extends its client base across multiple states. One Call Concepts creates cost-effective Geographic Information System (GIS) for one call center services, combining on-screen mapping and a graphical user interface.

2000s and Beyond: Continuing to Innovate

As the industry continues to evolve because of leaps in technology, so do we. We constantly work to strengthen our one call center services. We are always evolving new software such as Ticket Check and ITIC that provides our customers with the latest developments.