Little Peconic | 5 followers on LinkedIn. Executive coaching for startup CEOs and leaders. | Executive coaching for startup CEOs and leaders. Mark Josephson is a seasoned CEO with over 30 years of experience leading companies through high-growth, scale, and exit stages. He has successfully built and sold companies like Castiron, Bitly, and Outside.in, specializing in SaaS, hyperlocal media, and enterprise sales.