Technology Integration Group announced that it has completed the acquisition of Internet protocol communications systems integrator Obsidian Technologies. Financial terms of the deal were not disclosed.

Obsidian Technologies is a full-service network integrator in the public and private sector throughout Oregon and the Pacific Northwest. With offices in Bend and Eugene, Ore., Obsidian Technologies designs, deploys and supports VOIP/IPTEL solutions including networks, security WLAN and remote access.

The newly formed Oregon office will be led by Obsidian principals Tony Foy and David Markey as well as other new hires expected to join TIG.

This is the fourth acquisition by TIG in recent months. The others were Hawaii-based Commercial Data Systems, New Mexico-based Integrity Networking Solutions and Florida-based WAVEnet Technologies.

“Business today is being replaced by a workforce born in the rapidly evolving digital age who is accustomed to real time connection and information at all times,” said Bruce Geier, TIG president and CEO. “It’s a paradigm shift and something that will fundamentally transform the way companies do business. This acquisition will add the rich communication technology our clients need in driving faster and smarter decisions for the connected world.”

Privately held TIG reported 2011 revenues of $340 million. The company has 470 employees nationwide with 23 offices in U.S. cities and one in Shanghai.