Daniel Ahmadizadeh's website. Brooklyn-based startup founder and teacher.

Hi, I’m Daniel - I’m currently building Time and Circles, while continuing to work with 2-3 startups as a turnaround consultant.

Over the last 10+ years I've been the CEO of two Y Combinator backed startups, helped other startups at risk of shutting down find a way to change their trajectory as their founder coach, fractional CEO, and angel investor. I also teach entrepreneurship at Columbia University, Stanford University and Dr. D. Y. Patil Vidyapeeth, Global Business School & Research Centre.

I have helped lead three companies to over $1M+ in annual recurring revenue, and my work has been recognized in major publications like WSJ, The Today Show, and NPR. I'm honored to have been invited to speak on startups at Harvard, Princeton, and TED.

My framework, Start With One, focuses on solving a problem first for one person, as they can be the microcosm of an entire market. It shifts entrepreneurship from idea-led to problem-led, transforming theoretical personas into actual human beings. As one example, I worked with Krokit CEO to take their business from near-shutdown to discovering a new persona that increased revenue per customer by 17x and expanded their TAM by millions. This approach has consistently helped founders revitalize struggling companies, launch successful new ventures, and provides a concrete way to measure impact in entrepreneurship programs. See testimonials from students, founders, and parents here. This approach has consistently helped founders revitalize companies that others had written off.

When I’m not working on startups, I love running and spending time with my family. Here are some of my values and a preview of the book I’ll publish next year. Feel free to add comments to it directly!