Our Mission.

We believe that investor-backed entrepreneurs are in an extraordinarily position to solve some of the toughest problems facing humanity.

We believe that exceptional leadership is the greatest untapped opportunity in the start-up community. Our mission is to transform new leaders into fantastic leaders.

Thriving Founders is dedicated to the rapid professional, emotional, and spiritual development of startup leaders who want to play their part in creating a global culture that is sustainable, thriving, and just for all.

Our Clients.

Recommendations from Michael's LinkedIn page

"As COO of Toca Boca I am confronted with the typical challenges all fast growth startup leaders face. I shared the most sensitive issues with Michael and could trust him to coach me in an honest and objective way, challenging me to think with new perspectives and to grow as a person. I am very grateful to have worked with Michael and would highly recommend him to any executive who wants to grow as a leader."

Caroline Ingeborn
President and COO at Toca Boca

“I began working with Michael as I was considering hiring a CEO to bring our company to the next level and scale quickly. As founding-CEO, this was no easy decision! Michael proved to be both a compassionate thought partner and effective advisor. I decided to hire a CEO, and I have continued to work with Michael to help ensure a smooth transition, effective partnership, and continue my personal growth as an executive and leader.”

Charles Cadieu
Co-founder & President, Caption Health

"I've had the pleasure of being coached by Michael as Co-founder & CEO of a 1000 person company. Michael sees the situation from multiple perspectives and provides you with clear vision on what and how to communicate your message for optimal results. He possess a vast set of skills within management consulting that provides you with tangible tools you can use again and again."

Henrik Zillmer
CEO & Founder at AirHelp

"I wanted to try some different types of executive coaching before recommending it to CEOs for whom I work. Michael jumps right into the problems presented, providing a preliminary solution and iterating on it with you in realtime. Michael's followup is excellent, with everything well-documented and an effort made to turn conversations into reusable frameworks. I recommend Michael for situations where you're dealing with a lot of different problems and people."

Ash Fontana
GP at Zetta Capitol
Karen X Cheng

"What I like about Michael's style is that he really gets into the psychological stuff with you. What I found most helpful is that he would help me look under the hood in my brain and emotions so I could understand WHY I was making the decisions I was making or why I felt the way I did. What I appreciated most is that he is an advocate for YOU, not just for your company's bottom line. He taught me to work in a much more sustainable way and I'm much happier and healthier now."

Karen X. Cheng
Founder at Wafffle

"Michael has really helped Taulia’s C-team up-level our leadership skills by teaching us improved communication and innovative collaboration practices and transforming any unhealthy personality traits. Leading a company that grows 2-3x year over year puts a lot of stress on the team. Since starting with Michael two years ago I see how much more high functioning we are as a team, despite the stress. Personally I appreciate how Michael has helped me increase my emotional intelligence and as a result I believe I may have become a better CEO."

Bertram Meyer
Co-founder & CEO at Taulia

Meet Michael, Managing partner.

I'm a tech startup founder with 6 years operational experience. Since leaving my company I have conducted more than 9,500 hours of coaching sessions with venture backed executives. Today I am proud to provide you with a team of extraordinary experts who know how to help you win!
Michael Costuros: Executive Coach
We will help you solve the most gut-wrenching issues you face as you rocket toward the next round of funding. Co-founder conflicts, difficult board dynamics, underperforming executives, forced resignations and worse. You name it, we have coached our clients through to the best possible outcomes.
Whatever your issue, we will leverage it to develop new leadership and management skills that will take you all the way.
To discover how my team and I can help you, shoot me an email or schedule a call now. – Michael 

Our Services.

We specialize in 

  • Rapid leadership development
  • Bad habit and personality quirk change
  • Co-founder conflict prevention and resolution
  • Fundraising strategy and process
  • C-team off-sites (COVID safe)
  • Remote team cohesion and effectiveness
  • As of 2021, Psychedelic-assisted Executive Coaching (yup!)
To discover how we can help you win, schedule a call now.

Psychedelic-assisted Executive Coaching (PaEC).

New for 2021!

The future has arrived, it’s called Psychedelic-assisted Executive Coaching, (PaEC), and the results are EXTRAORDINARY! There is no more faster, effective way to resolve your blindspots and change personality quirks that are preventing you from being the best leader you can be. 

Clients who want to take advantage of PaEC will be provided legal, at home, virtually guided Ketamine therapy sessions through Mindbloom

I am SO EXCITED to be able to offer you the unprecedented results that come when you combine Executive Coaching and psychedelic therapy sessions. 

I have been incorporating the use of therapeutic psychedelics with select clients since 2010 through my Entrepreneurs Awakening retreats in Peru. I literally have more than a decade of experience as a Psychedelic-assisted Executive Coaching and I am simply delighted that there is now a legal and taboo free way to offer it to you in the US. 

To learn more about PaEC, schedule a call now.
Artwork from @psychedelicjourneys on Instagram


Visit my YouTube channel for actionable coaching videos.

Why You Should Consider an Acqui-hire BEFORE Your Series A

How To Recruit A Startup Rockstar (who doesn't need the money)

How To Practically Guarantee Your Next Hire Is A Big Win