If you've got several million burning a hole in your pocket, or you're looking to unload that old skyscraper, Marcus & Millichap can help. One of the largest commercial real estate brokers in the US (with about 75 offices), the firm focuses on investment brokerage and provides financing, research, and advisory services to both buyers and sellers. The company is organized into groups by property type, including shopping centers, apartments, office and industrial buildings, and distressed properties. Marcus & Millichap was one of the earliest brokerages to maintain a centralized database to link potential buyers and sellers. In 2013 the company went public, raising $72 million, which it will use for general corporate purposes.