Related Program: Focus on Business Focus On Business: Ron Gilkerson on GRW Consulting Firm By Bryan Bartlett • Nov 21, 2016 Related Program: Focus on Business TweetShareGoogle+Email Focus on Business host Tom Martin. Today, Tom Martin talks with Ron Gilkerson who just retired after 25 years as president with G-R-W, the engineering, architectural, and geospatial consulting firm based in Lexington since 1964. Listen Listening... / 3:59 Part one of Tom Martin's conversation with Ron Gilkerson, former president of Lexington-based GRW consulting firm. Listen Listening... / 3:48 Part two of Tom Martin's conversation with Ron Gilkerson. Tags: engineeringarchitecturegeospatialKeenelandwater treatment plantsTweetShareGoogle+EmailView the discussion thread.