Complex sentence: Between 2011 and 2014, the company also released numerous speakers, added more services and worked with Bruce Mau Design to incorporate a rebrand of the company, which was effective 2015.
Split into simpler sentences: Between 2011 and 2014, the company released numerous speakers, and added more services. They worked with Bruce Mau Design to incorporate a rebrand of the company, which was effective 2015.