SAN JOSE — For Pinterest’s most recent fundraising round, which valued the online scrapbooking company with virtually no revenue at $5 billion, it turned to Orrick, Herrington & Sutcliffe for legal counsel.

Pinterest confirmed Thursday that it had raised a series F round of $200 million from existing investors SV Angel, Bessemer Venture Partners, Fidelity, Andreessen Horowitz, FirstMark Capital and Valiant Capital Partners. Just six months ago, the site raised $225 million at a $3.8 billion valuation, a transaction Orrick also pitched in on.