SpikeSource Inc., a Redwood City, Calif.-based open source IT infrastructure company,
has raised $21 million in Series B funding, according to a regulatory filing. PE Week Wire reported a $15 million first close earlier this year. Duff Ackerman & Goodrich was joined by return backers Fidelity Ventures and Kleiner Perkins Caufield & Byers. (Source PE Week Wire)