Previous investors Index Ventures and Khosla Ventures also took part in the Series B round, which BSN said it would use to expand its engineering, sales and marketing teams.
The company raised a $14m Series A round in March 2011, 12 months after it was founded.
Redpoint general partner Satish Dharmaraj said, “The Redpoint team has been looking at datacenter architectures for a good while now – and we’ve been particularly focused on the open opportunity to address the limitations of networking architecture.
“Big Switch’s open ecosystem approach and its brilliant team have created a breakthrough disruption at the right moment – and we’re very proud to participate in supporting their vision.”
Two months ago Index led an oversubscribed $40m Series D round for flash-based computer storage company Pure Storage, which also received contributions from Redpoint, Greylock and Sutter Hill.
The new funding brought the London-based company’s total capital raise to $95m.
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