Ouster, maker of self-driving tech, agrees US$1.9 billion deal to go public Toggle share menu Advertisement Ouster, maker of self-driving tech, agrees US$1.9 billion deal to go public Ouster Inc, a U.S. startup that makes lidar sensors for self-driving cars and smart cities, said on Tuesday it has agreed to go public through a merger with special purpose acquisition company (SPAC) Colonnade Acquisition Corp. FILE PHOTO: A car outfitted with Ouster's lidar, used in scanning the area on a self-driving vehicle, is parked at the technology company's office in San Francisco, California, U.S., September 5, 2019. Picture taken September 5, 2019. REUTERS/Jane Lanhee Lee