Carl Stjernfeldt has an investment focus on wired and wireless communications technologies and services, on advanced mobility solutions that provide secure high quality access to content and applications, and on next generation video delivery capabilities.
Prior to joining Castile, Mr. Stjernfeldt was a partner at Battery Ventures where he spent seven years investing in leading IT companies. He currently serves or participates on the boards of Agito Networks, Funambol, and VisibleGains (formerly PermissionTV). He has served on the boards of Arbor Networks, Broadbus Technologies (acquired by Motorola), Cedar Point Communications, and Tejas Networks, and was a board observer of Optium (NASDAQ: OPTM, acquired by Finisar).
Prior to Battery Ventures, Mr. Stjernfeldt was a client partner and project manager for Cambridge Technology Partners, delivering large mission-critical system implementations for Fortune 100 clients. Mr. Stjernfeldt started his career as an engineer at Summa Four, developing telecommunications solutions for domestic and international service providers, later rising to engineering management before starting an application development department.
Mr. Stjernfeldt holds a dual MS in Electrical Engineering from the Royal Institute of Technology (KTH) in Stockholm and Northeastern University in Boston, and an MBA from the Massachusetts Institute of Technology's Sloan School of Management.
Mr. Stjernfeldt is active at MIT serving as a Catalyst for the Deshpande Center, judging MIT's 100K competition, and teaching an entrepreneurial finance class at the Sloan School. He is also a Charter Member with TiE and serves on the University of Michigan's Technology Transfer National Advisory Board. Mr. Stjernfeldt is the Treasurer of the New England Venture Capital Association and as a board member for the Massachusetts Networks Communications Council he leads the Innovators Summit committee.
