EverString, another marketing startup that sells software for personalizing business-to-business sales outreach, has closed a $65 million Series B round.

The funding was led by LightSpeed Venture Partners, along with Sequoia Capital, IDG Ventures, and Lakestar. The San Mateo, Calif.-based company previously raised around $13.7 million in seed and Series A funding.

EverString uses analytics and artificial intelligence technologies to sort through a company’s prospects and qualify the leads that are most promising based on historical encounters. It can filter far more information than typical inside sales teams, helping an organization build sales pipelines far more quickly.

Its account list currently includes more than 50 customers, said President and co-founder J.J. Kardwell. The ones willing to be named publicly are mainly from the tech sector: IBM, Microsoft, VMware, and Zenefits. “We don’t sell analytics. We help companies increase their conversion rates,” Kardwell said.

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