The network-as-a-service provider has now raised at least $64m since 2010, with Sumitomo-owned Presidio Ventures investing for a second time.

US-based network-as-a-service company Aryaka has raised $10m in a series D round featuring Presidio Ventures, the US-based corporate venturing subsidiary of diversified corporation Sumitomo.

Venture capital firms Trinity Ventures, InterWest Partners, Nexus Venture Partners and Mohr Davidow Ventures also participated in the round. All four, like Presidio, are existing backers.

Founded in California in 2008, Aryaka provides a WAN (wide-area networks) optimisation service as well as a networking service for businesses that enables them to collaborate and communicate more effectively.