Complex sentence: The company initially began as a small project selling off records that he and friend Nick Austin had collected for a mobile disco, a disco then company which was named after the Rolling Stones' album Beggars Banquet.
Split into simpler sentences: The company initially began as a small project selling off records that he and friend Nick Austin had collected for a mobile disco. The disco, and then the company, was named after the Rolling Stones' album Beggars Banquet.