The Hallenbeck Coin Gallery, Inc. is located at 711 N. Nevada Avenue in the Hallenbeck Building near downtown Colorado Springs just two blocks from the American Numismatic Association (ANA) museum and library. Founded by Ken Hallenbeck in 1983 as a small coin shop, the business has continued to grow.

Tom Hallenbeck joined his father in 1984 after graduating from the University of Colorado with a degree in economics. Chad Kraus started with the firm in 1997 after working at the ANA for three years. In 2001 Tom purchased the business from Ken.

Tom Hallenbeck is a 25 year member of the ANA (LM-5555) and a 2 term past governor of the ANA (1997-2001). Tom and Ken are the only father and son to ever both serve as board members of the ANA. Tom is a past president of the Colorado-Wyoming Numismatic Association (CWNA) and current board member. He is also a past president and current board member of the Colorado Professional Numismatic Association (CPNA). Tom has been an instructor at the American Numismatic Association’s summer seminar for over 10 years now as an instructor of "advanced coin grading". Tom has given numerous evening seminars often called "bull sessions" at the annual summer conference here in Colorado Springs at the Colorado College.

Ken Hallenbeck is a past President of the ANA and has been collecting coins for over 60 years. He has served on the board of governors for many numismatic clubs and associations on the local and national level. Ken has received many awards for his continued dedication to the hobby including the Farran Zerbe Award, the ANA’s highest honor. He is now semi-retired and works a few days per week in the shop as well as on a consultant basis.

Before coming to the firm in 1997 Chad Kraus was an ANA intern while working on his Psychology Degree. After graduation Chad decided to pursue a career in numismatics and started working the front counter buying and selling coins. He now handles most bullion transactions and runs all internet operations.

The Hallenbeck Coin Gallery often attends and sets up at the major coin shows, such as the FUN show in Orlando, the ANA spring convention, the ANA anniversary convention and major coin shows in the rocky mountain region.