TECSys Development, Inc. provides device and application management software and services that are used to remotely monitor and manage a variety of enterprise systems. Customers use the company's software to capture, audit, and log data that is collected from servers, storage devices, databases, operating systems, and security devices. Those customers include major players in the financial services, healthcare, utilities, telecom, and manufacturing industries like the US National Security Agency, the US Army, Pfizer, Verizon, and Bank of America. TDI was founded in 1993.