Press Releases

RingCentral Appoints New Chief Financial Officer


Redwood City, Calif. (December 8, 2008) – RingCentral, a cloud computing-based hosted business phone service, announced today that Craig Klosterman has joined the executive leadership team as Chief Financial Officer (CFO).

Klosterman has a depth of experience in leading companies through the Initial Public Offering (IPO) process. He led WebEx through a very successful IPO ultimately resulting in a $3.2 billion sale to Cisco. Previously Klosterman also led IPOs as CFO at Informatica and as COO and CFO at Lumisys.

“We are very pleased to have Craig join our executive leadership team,” said Vlad Shmunis, CEO of RingCentral. “His background and experience are a perfect fit for RingCentral and I am confident his contributions will be instrumental in accelerating our market leadership.”

Klosterman comes to RingCentral with many years of experience in key financial roles. He served as the CFO for WebEx Communications where he grew the company from $2 million to $140 million in three years. Klosterman will work closely with RingCentral’s executive team to leverage the company’s record of superior service and innovation to continue its rapid growth.

“I am thrilled to be part of this team. RingCentral’s unique technology platform, rapid customer growth, and strong executive team makes it stand out from the crowd,” said Klosterman.

About RingCentral

RingCentral provides a cloud computing-based, hosted multi-extension business phone service for small business. With top industry honors, including PC Magazine's Editor's Choice Award and Small Business Computing's Excellence in Technology, RingCentral offers full-access to core small business phone services and helps improve productivity for tens of thousands of customers worldwide. Headquartered in Redwood Shores, Calif., RingCentral is privately held with backing from Sequoia Capital, Khosla Ventures and DAG Ventures. For more information, please visit:

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RingCentral Contact:
Mariana Kosturos