Sean Tonner - President
sean@phaseline.com | (303) 297-8170 X302

Sean Tonner is the founder and President of Phase Line Strategies. With more than a decade of experience in government and corporate affairs, Tonner offers clients expertise in developing and executing effective corporate growth strategies as well as providing sound political consulting.

Prior to founding Phase Line Strategies in 2002, Tonner served as the Deputy Chief of Staff to Colorado Governor Bill Owens. He was responsible for the day-to-day operations of the office as well as managing intergovernmental affairs and external relations with various constituencies including political, minority, and business organizations.

Over the course of his career, Tonner has worked on numerous political campaigns in the U.S. and abroad including Bush-Cheney, Bill Owens for Governor, Ben Nighthorse Campbell for Senate, Mike Coffman for Congress, and numerous local and state efforts. In 2002, he was named a national rising star by Campaigns & Elections magazine after he engineered a nationally recognized get-out-the-vote program that resulted in the largest gubernatorial vote received in Colorado history. Most recently, Tonner has been working with clients in Central Europe.

In addition to his extensive political experience, Tonner has also amassed impressive corporate affairs experience developing and executing successful strategic plans for companies including Western Union, HealthOne, Wal-Mart, Noble Energy and others. In addition, he has been successful in raising and deploying investment capital for small and medium sized companies.

As a result of his father's Air Force career, Sean was born in Landstuhl, Germany and grew up in numerous locations around the world. At the age of 18, Mr. Tonner joined the U.S. Army and attended Reconnaissance, Airborne, Ranger, Desert, and Jungle warfare training. In addition, he served as a scout for the 24th Infantry Division in Desert Storm where he earned the Army Commendation Medal for Valor. After his service, he attended Metropolitan State College of Denver where he earned his degree in History.  Tonner currently serves on the foundation board for Metropolitan State College and The Fund for Colorado’s Future.  He also serves on the board of the Entrepreneur’s Organization, Colorado Chapter and the Rocky Mountain USO Advisory Council.  Additionally, Sean is a member of the Project El Crucero Leadership Team, which runs a medical clinic in Nicaragua.

Sean and his wife Laura live in Highlands Ranch, Colorado. They have two children, Reagan and Hunter.