Green Triangle Buses was established as a limited company in April 1998 by business partners Martin Bott and David Stewart, operating from Printshop Lane, Atherton (close to the boundary with Tyldesley). The new business began with two new Mercedes Varios which were used on a GMPTE tender. These were joined by three single deckers for use on school services, ironically used by the old South Lancashire Transport (also owned by the two partners) which was bought by Arriva during the previous year. In 2006 entrepreneur Julian Peddle bought a 30% stake in the company.