ForgeRock Inc., a San Francisco-based provider of open source identity and access management solutions, has raised $15 million in Series B funding. Foundation Capital led the round, and was joined by return backer Accel Partners. www.forgerock.com

Cleave Biosciences, a Burlingame, Calif.-based developer of cancer therapies, has raised $10 million in new Series A funding from New Enterprise Associates. The round total is now $54 million, including a first close in late 2011. Backers on the original tranche included US Venture Partners, 5AM Ventures, Clarus Ventures, OrbiMed Advisors, Astellas Venture Management and Osage University Partners. www.cleavebio.com

Nexgate, a San Francisco-based provider of social infrastructure governance solutions for the enterprise, has raised $3.5 million in Series A funding led by Sierra Ventures. www.nexgate.com

Plain Vanilla, an Icelandic publisher of social trivia games, has raised $2.4 million in Series A funding. Backers include Greycroft Partners, Tencent, BOLDStart Ventures, IDG Ventures, CrunchFund, Mesa Global and Riot Games. www.plainvanillagames.com

Donuts Inc., a Sammamish, Wash.-based registry for generic top-level domains, has raised an undisclosed amount of Series B funding at “twice the valuation” of the company’s $100 million Series A funding. Existing investor Generation Partners led the round, and was joined by Columbia Partners Private Capital. The prior round also included Austin Ventures, Adams Street Partners, Emergence Capital and TL Ventures. Donuts was founded in 2010 by former Demand Media exec Paul Stahura. www.donuts.co