Established in 1981, NAI BT Commercial is a full-service commercial real estate brokerage firm. It specializes in a range of project planning and property management services. The company provides property disposition, portfolio administration, purchase analysis and site selection services. NAI BT Commercial operates more than 15 offices and employs over 350 agents and brokers who assist clients in the buying, selling and leasing of properties. It deals in a variety of town houses, corporate towers, business centers, retail facilities, commercial buildings and vacant land. The firm also offers asset management, lease negotiation, commercial leasing and tenant representation services. NAI BT Commercial maintains a presence in Sacramento, Calif., as well as offices in San Francisco, San Jose, Burlingame and Palo Alto, Calif.