Michael Sears of Siemens Venture Capital will join the board of Sensys.

Sensys Networks, a US-based provider of integrated wireless traffic data systems for smart cities, has raised $8.5m in its series C round from a consortium led by Siemens Venture Capital (SVC), the corporate venturing unit of Germany-based industrial conglomerate Siemens.

Existing investors, venture capital firms Fuse Capital, Horizon Ventures, Voyager Capital and Gruener Ventures, also reinvested in Sensys. According to a regulatory filing, Sensys raised $5.1m in 2008, including from Siemens and ComVentures, and $4m in 2005.

Ralf Schnell, chief executive of SVC, which has invested more than €800m ($1bn) in over 150 companies and 40 venture capital funds, said: "There is a huge pent-up demand for traffic data internationally and we only invest in market leaders with tremendous growth potential. Sensys Networks has the products to unlock that potential, and it is a perfect addition to our portfolio."

Michael Sears of SVC will also join the board of Sensys.

Amine Haoui, chief executive of Sensys Networks, said: "This capital will allow Sensys Networks to accelerate growth domestically and internationally, and maintain our product and technology leadership in wireless sensor networking for the transportation industry."

James Mawson

James Mawson is founder and chief executive of Global Venturing.