COLORADO HISTORICAL SOCIETY: Georgianna Contiguglia announced she will retire as president and chief executive in June.
CHILD HEALTH PLAN PLUS: Appointed Ileana Perez as a regional outreach coordinator. Before joining CHP+, Perez was executive director of Adams County Early Childhood Connections.
PINNACLE REAL ESTATE ADVISORS LLC: Joe Hornstein and Bobby Hutchinson recently joined the new commercial real estate brokerage as senior advisers.
MARKWEST ENERGY PARTNERS L.P.: Announced the election of Nancy (Masten) Buese as chief financial officer, John Mollenkopf as chief operations officer and Randy Nickerson as chief commercial officer.
KEYBANK: Promoted Ryan Guilford and David Johnson as senior vice presidents, Ken Shields and Kelly Jarabek as business banking relationship managers, and Gerard Gilmore as a construction relationship manager.
SHERIDAN ROSS PC: Named Bradley M. Knepper and Benjamin Lieb as shareholders; Sarah J. Miller, Darla G. Yoerg, David L. Walker, Ian R. Walsworth and Kathleen S. Taylor as associates; and Jason H. Vick, of-counsel. Matt R. Ellsworth and Brian J. Ignat have become patent agents.
RESORTQUEST: Appointed Amy Erickson as group sales manager.
PRUDENTIAL COLORADO REAL ESTATE: Named Jennet Balch, Lourdes Castro, Larry Hankin, Nichole Huhman, Pam Landin, Steve Parisi, John Sanchez, Tamla Whitaker and Carole Yarter as broker associates in the southeast office.
