Castile Ventures




Aurora Networks designs and markets the most advanced optical transport systems for broadband networks.
Status: Private Location: Santa Clara, CA

Beaumaris Networks is a stealth-mode software company solving crucial problems for video service providers and their business partners.
Status: Private Location: Boxborough, MA

Brix Networks provides service assurance solutions for IP-based services.
Status: Acquired by EXFO (NASDAQ: EXFO) Location prior to acquisition: Chelmsford, MA

NetDevices provides the next generation of unified edge-networking solutions for the enterprise remote office and managed services markets.
Status: Acquired by Alcatel-Lucent (NYSE: ALU) Location prior to acquisition: Sunnyvale, CA

SilverStorm's high-speed switching products for the data center leverage the InfiniBand architecture.
Status: Acquired by QLogic (NASDAQ: QLGC) Location prior to acquisition: King of Prussia, PA

Sonus provides VoIP and multimedia infrastructure solutions for service providers.
Status: NASDAQ: SONS Location: Chelmsford, MA

Stargus provides real-time monitoring and automated management for broadband service provider networks.
Status: Acquired by C-COR (NASDAQ: CCBL) Location prior to acquisition: Andover, MA

Vgo is pioneering a new category of innovative visual communications solutions for the workplace.
Status: Private Location: Nashua, NH

Whaleback Systems is pioneering a managed IP telephony service that delivers VoIP's advanced features and low costs to the SMB market.
Status: Private Location: Portsmouth, NH