Marketo brings in another $10M for marketing automation

Marketo, a company selling web tools for salespeople and marketers, has raised $10 million in a fourth round of funding. The funds came from existing investors, led by Mayfield Fund and with participation from InterWest Partners and Storm Ventures.

The company has been bringing in funding at a steady rate — it raised $8 million in August 2008, followed by another round in September 2009. Its funding now totals $32 million. The money is supposed to help with Marketo’s continued growth: In the funding press release, Mayfield’s Robin Vasan said the firm encouraged the San Mateo, Calif. company to raise more money so that it “can grow even faster.”

Marketo’s applications include automation for email marketing campaigns, analytics for sales leads, and more. They integrate with other sales apps like Salesforce.com. The company says it has signed up more than 500 customers in the last two years. Competitors include Eloqua and LoopFuse.

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