RealMassive | 1,861 followers on LinkedIn. RealMassive is the industry’s largest source of commercial property data that is updated in real time. | RealMassive is commercial real estate’s real-time data company that provides comprehensive, up-to-date and accurate technology solutions to inform the industry. The company’s software products empower anyone with an interest in commercial real estate to make better, faster business decisions. RealMassive’s Marketplace is the industry's most up-to-date online destination for discovering commercial properties for lease, sale and sub-lease.