Transwestern Commercial Services is a privately held real estate firm specializing in agency leasing, property and facilities management, tenant advisory, capital markets, research, and sustainability. The firm also provides investment and financial services including market research and analysis, site assessment and acquisition, project and construction management, project marketing, risk minimization, finance and capitalization, project advisory, and consultation services. The firm caters to clients in need of office, industrial, retail, residential, educational, hospitality, and healthcare properties. The firm was established in 1978 and is based in Houston, Texas.