AT&T Inc. last week announced a three-year extension and expansion of a relationship with United Rentals. AT&T will continue to connect more than 690 United Rentals branch locations with voice and data connectivity.

“Our business has benefited in recent years from the AT&T technology solutions that keep our locations and employees connected,” said Dale Asplund, vice president, strategic sourcing, United Rentals. “The AT&T team is continually bringing new technologies to our attention that can help us further increase our ability to serve our customers. We expect to control costs and increase business efficiencies by having AT&T provide telecommunications and networking solutions for our company.”

Based in Greenwich, Conn., United Rentals is No. 1 on the RER 100.