Bitmain is the world's largest manufacturer of Bitcoin mining hardware, founded in 2013 by Jihan Wu and Micree Zhan in Beijing, China. The company designs and sells application-specific integrated circuit (ASIC) chips and miners under the Antminer brand, which dominate the global Bitcoin mining hardware market. Bitmain's Antminer series has gone through numerous generations, with models like the S19 and S21 series offering industry-leading hash rates and energy efficiency.

In addition to hardware manufacturing, Bitmain operates Antpool, one of the largest Bitcoin mining pools by hash rate. The company has expanded its operations globally, with manufacturing and R&D facilities across multiple countries. Bitmain attempted a Hong Kong IPO in 2018 that ultimately lapsed, and the company underwent significant leadership changes in subsequent years before stabilizing operations.

Bitmain has also been a significant investor in the broader cryptocurrency ecosystem, backing mining farms, exchanges, and blockchain startups. The company continues to focus on next-generation chip design to maintain its competitive position as the mining industry shifts toward greater energy efficiency and institutional-scale operations.

Key Products

• Antminer Series — Industry-leading Bitcoin ASIC mining hardware
• Antpool — Major Bitcoin mining pool
• ASIC Chip Design — Custom silicon for SHA-256 mining

Investments

Bitmain has also invested in a number of Bitcoin companies, as listed below.