Cushman & Wakefield | PICOR Promotes Isenberger to Lead Iconic 5151 Broadway Tower
TUCSON, ARIZONA (May 30, 2025) – Cushman & Wakefield | PICOR has announced the promotion of Mark Isenberger to General Manager of 5151 E Broadway Blvd, Tucson’s largest commercial office building. Isenberger previously served as Property Manager of the tower for seven years.
In his expanded role, Isenberger now oversees all aspects of operations, tenant and community relations, and strategic initiatives at the landmark property.
“Mark has done a terrific job in raising the profile of 5151 in the community along with the 50th Anniversary of the tower and celebrating all the recent new improvements,” said Scott Seldin, President of Kent Circle Partners. “Under his guidance, he and the team run a professional first-class operation.”
Isenberger brings extensive industry experience from his 25-year career in Southern California, where he managed high-rise office buildings for institutional investors and oversaw a corporate campus for a Fortune 500 insurance company. His background includes work across office, retail, and medical property management, along with development roles at firms such as IDS Real Estate Group, PM Realty Group, Decron Properties, Kilroy Realty Corporation, and Douglas Emmett.
“I’m honored to be part of the Cushman & Wakefield | PICOR team and fortunate to work with Kent Circle Partners | Seldin Real Estate, Inc., who remain engaged and committed to both the asset and the Tucson community at large,” said Isenberger.
5151 E Broadway Blvd is owned by Kent Circle Partners | Seldin Real Estate, Inc. of Scottsdale, AZ. Since acquiring the building in 2009, the firm has invested significantly in infrastructure and amenities, maintaining its status as a premier business address in Southern Arizona. Property highlights include individual office suites, state-of-the-art elevators, a recently renovated fitness center, EV charging stations, an on-site coffee shop, and OOROO Auto Servicing.
For leasing information, contact Mark Isenberger at [email protected].