Partner Bios

John Krumme

John Krumme joined The Beta Group in 1986. He is currently COO of Sapphire Medical. John served as President and later Chairman of Beta Phase from 1986 to 1993. Prior to joining Beta, John founded Metcal (1981-1986), a self-regulating heating technology company, and Alchemia (1981-1986), a shape memory alloy product development company which became Beta Phase in 1986. John was also a development engineer at Raychem (1973-1979), Hewlett-Packard (1969-1973), and General Electric Medical (1967-1969). John graduated from Stanford in 1967 with a MS/MSE degree in mechanical engineering. John holds more than 20 issued patents.

Dave Plough

Dave Plough joined The Beta Group in 1986. He is currently CEO of Portaero. Dave has led the firm's investments in CollOptics and Altair Eyewear. He served as initial President of two portfolio companies, CollOptics and Reflex Sunglasses, and as General Manager of another portfolio company, FoxS Labs. From 1982 to 1984, Dave was an associate with The Boston Consulting Group. Dave received his BA degree in 1981 from Dartmouth College where he graduated cum laude and his MBA in 1986 from the Stanford Graduate School of Business. He is President of Avantek.

Bob Zider

Bob Zider founded The Beta Group in 1983 with backing from The Boston Consulting Group. From 1976 to 1983 he worked at The Boston Consulting Group, where he was a Vice President. From 1969 to 1971 he was an analytical engineer with Pratt & Whitney in the Advanced Engines Group. From 1971 to 1973, and on a part-time basis from 1974 to 1976 while attending school, Bob was a Lieutenant with the National Oceanic and Atmospheric Administration. Bob received his BSCE in 1969 from the University of Virginia and his MBA with Distinction in 1976 from the Harvard Business School, where he was the class president. Bob is the CEO of PorOsteon and Avantek.