Enterprise Software Operator

I build and scale
software businesses.

20 years. 6 ventures. 3 acquisitions. $1B+ ARR built from zero.

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$1B+
ARR built from zero
3
Acquisitions
4x
Conversion lift with AI video
20K+
Sellers retrained to sell SaaS
Currently

What I Do

Build

Founder and CEO of GLX Studio. Enterprise AI video, personalized at scale, for Fortune 100 customers.

glxstudio.com

Operate

Operating Partner at Outhink Venture Studio. Go-to-market, product-market fit, and growth with portfolio CEOs and boards.

4+ portfolio companies

Advise

Boards and advisory roles in enterprise SaaS, AI, and edtech since 2008.

About me
Experience

Career Arc

2023 - Present

GLX Studio / Outhink Venture Studio

Founder & CEO / Operating Partner
2020 - 2022

Cisco

Head of Adoption & Growth, CX Cloud. Zero to $250M ARR in 2.5 years.
2013 - 2019

Declara

CEO. First profitable quarter, then acquisition.
Acquired
2010 - 2013

SchoolOne

Customer Success & Business Development
Acquired
2005 - 2008

Interactive Purchasing Solutions

Co-founder & President
Acquired
Read the full story →
Press & Speaking

In the Media

Panelist, "Agentic AI in US Higher Education," Future Summit 2026 CA Community Colleges / 2026
Particle Accelerator Podcast: AI Video Creation and Strategic Market Timing Particle41 / 2026 Cisco Support Honored with TSIA STAR Award Cisco Blog / 2021
All appearances, bios, and headshots →
Get in Touch

Let's Talk

Founders, CEOs, and boards: I respond to every message.

LinkedIn
linkedin.com/in/zak-zielezinski
Email
zzielezinski@gmail.com
X
@ZakZ