From a local development company to one of the largest developers in Oklahoma.

Richard Tanenbaum is the principal owner and CEO of Gardner Tanenbaum Holdings. Mr. Tanenbaum brings over thirty-five years of commercial real estate experience including development, acquisition and brokerage. Throughout his tenure, Mr. Tanenbaum has demonstrated the ability to provide creative and quality real estate solutions for corporate and aerospace clients needing commercial space in the Oklahoma market.

Mr. Tanenbaum has vastly expanded the asset base of GTH’s commercial portfolio as well as the company’s capabilities and expertise in different types of construction including multifamily, industrial, retail, and office. Since 1997, he has overseen the growth of the company’s commercial portfolio from 800,000 square feet to over 7,500,000 square feet. Mr. Tanenbaum has completed over 80 projects totaling more than $600,000,000, making GTH one of the largest developers and property owners in Oklahoma.

GTH has significant experience with industrial construction both high quality and technically advanced projects. GTH has numerous corporate users, some of which include Boeing, Northrop Grumman, Rockwell Collins, L-3, Kellogg’s, Armacell, IMAX, Shurtech (Duck Tape), and FedEx. GTH has delivered these users efficiently designed facilities that were completed on time and on budget, exceeding their expectations.

Since 2015, Gardner Tanenbaum Holdings has been one of the most active General Services Administration (GSA) acquirers in the market and has amassed a portfolio of over 534,000 SF, representing a total capital investment of approximately $99MM. Gardner Tanenbaum Holdings’ GSA Portfolio includes assets located around the country and features a variety of government tenants including Social Security Administration, Veteran Affairs, Federal Bureau of Investigation, Internal Revenue Service, Drug Enforcement Agency as well as U.S. Customs and Border Patrol.

Two principals from GTH, Richard Tanenbaum and Becky Tanenbaum Mallace, have joined together with two principals from Metropolitan Capital Advisors in Dallas, TX to form a private equity firm called Tanenbaum Equity Partners (TEP). These highly experienced professionals focus solely on producing attractive risk-adjusted returns through domestic commercial real estate investments.

TEP’s investment platform currently targets stabilized, core investments with a specific focus on real estate assets leased to federal, state & municipal government agencies, high-quality defense & aerospace tenants, as well as select industrial & distribution facilities. TEP’s sector-focused discipline and proactive management style seek to minimize risk and unlock additional value post-acquisition, driving our total returns and delivering stable, long-term cash flows for our investors. For more information, visit