Roger Walton focuses on portfolio development, providing strategic guidance to Castile companies in their formative stages and at critical stages in their development.  He also leads Castile’s theme-based investment program, which identifies the most productive segments for early-stage investment in upcoming technology and market cycles.  He currently participates on the boards of Connotate, VGo Communications and Whaleback Managed Services and has previously served on the boards of Neah Power (OTC BB:NPWS), Quantiva (acquired by NetScout), Sandbridge Technologies (acquired by an undisclosed public company) and Stargus (acquired by C-COR).
 
Prior to joining Castile, Mr. Walton advised start-up and established businesses – both solution vendors and service providers – on market, product/service, and partnership strategies. Clients included Comverse, SBC, Altiga, Salix, and Xedia.  For IT analyst Ovum, he researched and authored several reports on information services markets, developed forecasting models and scenarios for emerging segments, and wrote about a broad range of technologies.
 
Previously, Mr. Walton was a senior marketing executive at Netlink, Inc. and helped craft the strategic roadmap guiding the success of its frame relay solutions. After the acquisition of Netlink by Cabletron in 1996, Mr. Walton joined Cabletron to lead its carrier marketing initiatives.  Prior to Netlink, Mr. Walton was a senior executive at Motorola and Octocom Systems, where he was responsible for marketing a wide range of networking products, and has considerable experience working with service providers to define, develop, and deploy leading-edge communications systems.
 
Mr. Walton speaks frequently on financing and start-up strategies to entrepreneurs and is an advisory board member for The Capital Network.  Mr. Walton holds an MA in Mathematics from Oxford University.