6sense has raised $426 million in funding and reached a $5.2 billion valuation, with 1,001–5,000 employees. Founded in 2013 and headquartered in San Francisco, California, United States, the platform uses machine learning and behavioral data to predict buyer intent, identify high-value prospects, and optimize sales and marketing strategies. Backed by Harmony Partners and Sapphire Ventures, 6sense enables teams to track accounts, generate opportunities, and prioritize leads effectively. After its $125 million Series D round on March 30, 2021, the company continues to expand its predictive intelligence capabilities globally.