In 1976, with three colleagues: Richard (Dick) Evans, Robin Lodge and James Miller, Brown founded Metier Management Systems in London, the first company to develop and market mini-computer-based systems for the management of large scale projects. Their first product, Apollo, launched in 1977, was the first Project Management System to run on a minicomputer but was limited to network planning and scheduling. It was joined in 1978 by a sister product, Artemis which incorporated cost and resource management, and became the world's first commercially successful relational database system.