Accel Partners

Accel Partners manages over $50 billion across its portfolio, best known for leading Facebook's $12.7 million Series A in 2005, a stake that returned over $9 billion at IPO. Founded in 1983, Accel pioneered "prepared mind" investing -- developing deep sector expertise before approaching companies -- and has been particularly successful in enterprise software and European technology. Its Accel London fund has backed Spotify, Supercell, Dropbox, and over 40 European unicorns.