On Demand Assistance for Solo & Bootstrapped Founders

Add critical skills. Gain new perspective. Create new feedback loops by adding an experienced entrepreneur to your team. No control, or equity asked.

👋 Meet Your New Co-Founder

Étienne Garbugli is a 3-time founder (Flagback, HireVoice and Highlights), the author of Lean B2B, Solving Product, and Find Your Market, and a customer development expert.

Over the last 15 years, he has validated dozens of businesses for clients or personal projects. He has worked with hundreds of entrepreneurs, ran countless tests, and has tried all existing methodologies to learn how to quickly build and grow B2B businesses.

Étienne Garbugli – Co-Founder on Demand
Étienne Garbugli, Serial Entrepreneur

How It Works


You Pick a Plan

You decide how long you want the engagement to be. We hold a first call to get to know one another. If there is a fit, we identify the best way to collaborate on your business goals.


We Work Together

Each month, you get 4 hours of my time. You can decide how to use it (for research, analysis, strategy, coaching, feedback, etc). I’ll make sure the investment is worth it for you.


You Cancel Anytime

The engagement lasts as long (or as short) as you need. You keep all equity, and there are no surprises or strings attached. Our core aim is simply to drive growth for your business.

How I Can Help Your Startup

I have over 21 years of experience building, growing, and validating tech products.

I was a founder, an operator, a consultant, and I also worked in large organizations. I know exactly what you’re going through.

My processes are proven. Thousands of entrepreneurs and innovators use my books everyday.

Customer Development

I have been working in customer research for more than 15 years. I’m the leading expert in B2B customer development. I can help you learn from the market and your customers.

Business Advice

I have been advisor to the CEOs of both early-stage, and fast-growing startups. I can help you and your team plan for accelerated growth.

Go-to-Market Strategy

I helped accelerate the growth of several startups. I can help you or your team plan (and execute) the right go-to-market strategy in order to gain a strong foothold in the market.

Feedback & Sounding Board

Sometimes all a founder needs is another perspective. Having worked with hundreds of startups already, I can help you and your team gain perspective.

Ready to Start?

Availability is limited and subject to approval.

Frequently Asked Questions