Petaluma-based Cyan raises $10 million in venture capital

Petaluma optical communications startup Cyan Optics has raised an additional $10 million in venture capital as demand for high-speed Internet access continues to soar.

Cyan sells broadband equipment, software and services to phone companies, Internet providers and cable networks struggling to manage a flood of digital traffic.

Cyan announced the private equity deal last week in a filing with federal securities regulators. It brings the company's venture backing to about $90 million since it was founded in 2006.

Earlier this month, Cyan announced a deal to sell its technology to Lynx Network Group, a Michigan telecommunications provider, for a high-capacity statewide fiber network.

The value of the deal wasn't disclosed.

Cyan's investors include Juniper Networks, Meritech Capital Partners, Azure Capital Partners, Norwest Venture Partners, Focus Ventures and Tenaya Capital.

Cyan has about 100 employees at its headquarters in Petaluma.

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