Bill McCullen brings a rare mix of hands-on engineering and business training to venture investing, having worked as Director of Product Marketing at Sycamore Networks before earning EE degrees from WPI and an MBA from MIT Sloan, and he has stayed rooted in the Boston startup scene through more than 150 investments since 2008 across networking, semiconductors, clean energy, and online markets. He also takes an active role beyond writing checks, serving on the board of CarePort Health, backing companies like Zagster with an eye for practical strategies within bigger market shifts, and staying visible in the local founder community through groups like Venture Forum and Beacon Angels.