Complex sentence: In June 2015, Control Group and Titan announced their merger into one company, known as Intersection, and acquisition by a consortium of investors led by Sidewalk Labs, a subsidiary of Alphabet Inc. that focuses on solving problems unique to urban environments.
Split into simpler sentences: In June 2015, Control Group and Titan announced that they would merge into one company called Intersection. Intersection is being led by a Sidewalk Labs-led group of investors who operate the company as a subsidiary of Alphabet Inc. that focuses on solving problems unique to urban environments.