Trumark Real Estate Management & Services is a privately held property management firm headquartered in Glendale, California. The company traces its origins to 1959 when it was established as Stevenson-Edwards Management, later evolving into Stevenson Property Management in 1983. In 1998, Mark Trueblood acquired the business, rebranding it as Trumark Real Estate Management & Services. The firm specializes in managing multifamily communities, office buildings, retail centers, and mixed-use properties across the San Fernando and San Gabriel Valleys. Its portfolio includes more than 2,000 residential units and over one million square feet of commercial space. Trumark provides a full suite of services, including leasing, maintenance, and accounting, with a focus on operational efficiency and client value. The company remains regionally focused and continues to adapt to market trends while maintaining its long-standing presence in Southern California’s real estate sector.