Who is gateway business properties? Gateway Business Properties is a full-service real estate company specializing in industrial and commercial properties. Headquartered in the South Bay area of Los Angeles.How do i get technical support for my gateway product? Chat with a Gateway technician to get live technical support. Our friendly Chat service is available to you most hours of every day. For service and support for Gateway products that are no longer under warranty, e-mail or chat with tech support. For out-of-warranty phone support, use Answers by Gateway’s telephone technical support.Why choose gateway commercial brokerage? Providing commercial brokerage for North Alabama since 1958. With over 10 full-time commercial real estate agents, Gateway can assist you in any aspect of commercial real estate. Gateway provides services that include: brokerage, leasing, asset and property management, development, build to suit, tenant representation and consultation.