Welcome to

For the first twenty years of my career, I (co)founded a series “venture-scale” software companies, growing each from and idea and a few co-founders to a company earning millions in revenue, collectively serving tens of millions of customers.  All but the first of these startups are still in operations and a few acquired by Global 1000 companies.

I now use the knowledge gained from those twenty years to help the next set of entrepreneurs.  My goal is to have them increase their odds of success by not repeating the common mistakes that I and my peers once made.  I do this in many ways:


The Next Step series of books guides entrepreneurs step-by-step through the process of getting from idea to operational startup, breaking the paradigm of startup investing, and explaining years of lessons teaching entrepreneurship.


The Next Step: podcast shares the lessons from the books plus other advice, anecdotes, and interviews, all in bite-sized audio pieces.


Fledge is a global network of conscious company accelerators, providing intense guidance, mentorship, investment, and support for a small set of entrepreneurs.


Teaching entrepreneurship at Presidio Graduate School, the first business school in the world to teach how to do good through business.


Answering questions from entrepreneurs on Quora.

Plus in these various efforts, I do my best to uncover hidden assumptions, break investment paradigms, and seek solutions to income/wealth inequality.

And despite now writing checks to entrepreneurs, I still consider myself first and foremost an entrepreneur, and as such every so often I simply have to create something new.  Most recently that is investorflow.org, an online network gathering together all the world’s impact investors.

Hope something from this long list is of help to you.

Latest blog posts

A quick explainer on Impact Investing

What is impact investing?  It’s a question that gets asked a lot, even in the crowd that calls itself impact investors.  I explained the general idea on-stage at The Nature-Accelerator in just three and a half minutes:

Toyota, Lean, and Lean Startups

“Lean Manufacturing” is the the origin of the phrase and philosophy “Lean Startup” and no matter how many times I see good summaries of the Toyota Manufacturing Process (the masters of Lean), I keep seeing analogies that are useful for startups. Lesson 1- Don’t make the same mistake twice. Lesson 2- Optimizing internal operations can be your secret sauce. Lesson 3...

Somebody’s Gotta Get Rich [SSIR]

Kevin Starr of the Mulago Foundation wrote a nice explanation of the need for and sweet spot of impact investing, Somebody’s Gotta Get Rich. Impact at problem-solving levels of scale doesn’t come from one-off businesses. “Levels of scale” as in making a noticeable difference in the world, rather than simply telling a good story imagining a world different from how it is today. Kevin...


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Recent blog posts