From their website:
Checkpoint Communications Inc. is a licensed communications wiring contractor specializing in the design and installation of premises wiring systems for voice and data communications. The company’s headquarters is located in Southern California with operations throughout the Western United States. Checkpoint Communications was established in 1987 by J.A. “Andy” Shoaff, a data processing executive with more than 30 years of experience, and James Shoaff, a certified voice/data communications network design engineer.