Long-time P2P lending player Prosper announced yesterday that it raised $25 million in private equity funding.

Existing investor Sequoia Capital and newcomer Blackrock Ventures both participated in the round.

The new installment, combined with the $20 million in private equity it received in January from Sequoia Capital, and its previous venture rounds of $75 million, bring the San Francisco-based company’s total funding to $120 million.

Since launching in 2006, the P2P lender has acquired almost 2 million members and has funded $630 million in personal loans. It is growing at 100% year-over-year in revenue and new loans.

Prosper demonstrated at the first Finovate, held in 2007 in New York.