What are some competent companies that manufacture underwater robots?

Boya Kudo is a leading underwater robotics company that integrates R&D, production and sales. The company is headquartered in the Yizhuang Economic Development Zone in Beijing, and has R&D centers and production bases in Tianchang, Anhui Province, Nanjing, Jiangsu Province, and Haikou, Hainan Province. In addition to Boya Kudo, there are other startups including Finsource Technology, Submarine Technology, Aquaman, Weifu Intelligence, and Jishadow Technology.