Besides Dale Larson and Marcy Swenson of Startup Happiness, here are other coaches who primarily focus on working with startup founders and leaders:
Jerry Colonna, NY. A former venture capitalist focused on investing in early stage technology-related startups, Jerry has been coaching since 2007. He blogs at The Monster in Your Head.
Dave Kashen, a former entrepreneur, investment banker and VC with a Stanford MBA and training at the Coaches Training Institute: Quantum Leading.
[Help us out... who else should we add to this list?]