Two Sigma

Founded in 2001 by David Siegel and John Overdeck, Two Sigma is headquartered in New York and operates across investment management, securities, private investments, and real estate. Its investment-management business applies a systematic, data-driven approach across diversified global strategies, while Two Sigma Securities provides technology-driven liquidity and trading services across electronic markets.

The firm’s distinctive strength is its research and engineering platform: teams source large alternative and traditional datasets, develop quantitative models, and test investment hypotheses at scale. Two Sigma reports more than 1,000 data scientists, engineers, and other technical professionals, with research infrastructure running more than 100,000 simulations on market data daily.

For students, the firm is especially relevant to quantitative research, data science, software engineering, and technology-led investing. Its internship roles are concentrated in areas such as quantitative research, AI research, and engineering rather than conventional investment-banking work.