BMLL Technologies

Founded in 2014 in the machine-learning laboratories of the University of Cambridge, BMLL is now headquartered in London. Nordic Capital acquired the company in October 2025, with Optiver remaining a minority shareholder.

BMLL collects, cleans and harmonises historical Level 3, Level 2 and Level 1 order-book data across equities, ETFs, futures, options and prediction markets. Its products include a cloud research environment, data feeds and a no-code analytics application used by banks, brokers, asset managers, hedge funds, exchanges, regulators and academic institutions.

Its strongest capability is turning raw, fragmented exchange data into analytics-ready datasets for market-structure research, execution analysis, transaction-cost analysis, surveillance, strategy backtesting and AI or machine-learning applications. The firm’s edge is data engineering at high granularity rather than investment banking or asset management.