# Mark Abbott

> Mark Abbott is the Park City-based founder and CEO of Ninety, a business operating system platform shaped by four decades in banking, commercial finance, private equity, investing, board work, and executive coaching. His path to software was unusually patient: the idea arrived in 2005, he joined the EOS community as implementer number 33 in 2012, and Ninety launched in 2016 before growing into a venture-backed company. Abbott now writes and speaks as candidly about culture drift and management mistakes as he does about growth, arguing that enduring companies require shared vision, disciplined operating habits, and leaders willing to confront uncomfortable facts.

- **Role:** Founder and CEO at Ninety
- **Organizations:** Ninety, Founder’s Framework, VTH Partners, Humalytix, Silver Point Commercial Finance, Trivest Partners, Heller Financial, Continental Bank
- **Education:** Bachelor's degree in Finance, Gies College of Business, University of Illinois Urbana-Champaign, Economics studies, Marquette University, High school, American School of London
- **Known for:** Built Ninety from a bootstrapped product serving the EOS community into a business operating system platform used by more than 18,000 companies, according to a 2026 interview., Raised a $20 million Series A in 2021 and a $35 million Series B in 2023; the latter valued Ninety above $200 million., Invested in more than 100 private companies, coached more than 75 senior leadership teams, and served on more than 25 boards, according to a Ninety-supplied executive biography.

## Career timeline

- **1982-1989** — Worked at Continental Bank, rising to vice president and learning through loan workouts and troubled companies.
- **1989-1999** — Worked at Heller Financial, eventually leading its corporate finance operation and helping develop its merchant banking platform.
- **1999-2004** — Served as a senior managing director at middle-market private equity firm Trivest Partners.
- **2005** — Formed the original idea for a book and software system after seeing recurring operating problems across more than 100 investments and dozens of boards.
- **2010** — Discovered the Entrepreneurial Operating System and the book Traction.
- **2012** — Joined the EOS community as implementer number 33 and began building trust and domain experience before developing the product.
- **2016** — Worked with co-founders to launch EOS-compatible business operating software that became Ninety.
- **2017** — Ninety dates its formal company founding to 2017.
- **2018** — Ninety signed an official trademark license with EOS Worldwide.
- **2021** — Ninety raised a $20 million Series A from Insight Partners after bootstrapping beyond 1,000 customers.
- **2023** — Ninety raised a $35 million Series B led by Blue Cloud Ventures at a valuation above $200 million; the company reported nearly $25 million in ARR.
- **2026** — Ninety appeared on the Inc. 5000; Abbott published candid reflections on culture drift, difficult staffing decisions, and the costs hidden inside growth.

## Achievements

- Built Ninety from a bootstrapped product serving the EOS community into a business operating system platform used by more than 18,000 companies, according to a 2026 interview.
- Raised a $20 million Series A in 2021 and a $35 million Series B in 2023; the latter valued Ninety above $200 million.
- Invested in more than 100 private companies, coached more than 75 senior leadership teams, and served on more than 25 boards, according to a Ninety-supplied executive biography.
- Became EOS Implementer number 33 and spent four years in the coaching community before launching Ninety's software.
- Created Founder’s Framework, a body of articles, podcast conversations, newsletters, and practical resources for company builders.
- Led Ninety to the 2026 Inc. 5000.

## Latest updates

- **2026-09** — Published a candid essay about the difficult periods behind Ninety's Inc. 5000 recognition and the leadership lessons those periods produced.
- **2026-08** — Published an essay on legacy founders and building companies with generational time horizons.
- **2026-02** — Appeared on Ninety's Impact Moments podcast to discuss culture drift, reductions in force, leadership changes, and decisions he regrets.
- **2025-12** — Discussed his four-decade career and Ninety's business operating system in a Pulse 2.0 interview.
- **2025-07** — Hosted a Founder’s Framework discussion about building Maz, Ninety's AI assistant.

## Links

- Website: https://markabbott.global/
- LinkedIn: https://www.linkedin.com/in/mabbott44/
- Twitter/X: https://twitter.com/NinetyApp
- YouTube: https://www.youtube.com/@90xEOS
- Instagram: https://www.instagram.com/ninety.io
- Facebook: https://www.facebook.com/MarkAbbottGlobal

---

Profile page: https://yespress.io/mark-abbott
Published by YesPress — https://yespress.io
Last updated: 2026-09-26