Pantheon Names Seasoned SaaS Leader John Gardiner its Chief Operating and Chief Financial Officer

Former ZoomInfo, Sitecore veteran brings 30+ years of finance and organizational leadership expertise to role

2 min read

SAN FRANCISCO (September 19, 2023) – Pantheon, the SaaS-based website operations (WebOps) platform for developers, designers, and marketers, today announced it has appointed John Gardiner the company’s Chief Operating and Chief Financial Officer. In this dual leadership role, he is an integral part of the Pantheon executive team and will focus on value creation and driving efforts to transform and scale operational initiatives, systems, growth, legal, and finance company wide. 

Gardiner is an exceptional software leader with more than 30 years of experience across global, high-growth cloud businesses. During his tenure as ZoomInfo President and Chief Financial Officer, Gardiner helped significantly scale the business and led the company’s exit, which resulted in the highest return on invested capital in TA Associates’ 50-year history. He also brings in-depth knowledge of website operations and digital experience platform industries to the role, previously serving as Sitecore Chief Financial Officer.

“Today’s IT and marketing teams are more crucial to companies’ business velocity and success than ever before, and Pantheon’s market-leading WebOps platform helps them achieve that success,” said Gardiner. “We have a massive opportunity to refine and scale our operations to capitalize on this market need, and I’m excited to be a part of the next-gen leadership team to create and implement the programs that will generate extraordinary value for our customers and partners.”

Gardiner joins the organization on the heels of its second consecutive inclusion on the Inc. 5000 list, which ranked Pantheon among America’s fastest growing private companies. 

“John is the ideal operations and finance leader for Pantheon at this stage of our transformation,” said Zack Rosen, Pantheon CEO and co-founder. “I am confident that his focus on operational excellence and data-driven decision making will enhance every level of the organization and fuel our growth.”  

To learn more about the value Pantheon delivers digital teams worldwide, visit

About Pantheon

Pantheon is the platform for websites that deliver extraordinary performance, running sites in the cloud for customers including Okta, Google, Home Depot, Pernod Ricard and Doctors Without Borders. Modern organizations choose Pantheon to empower their digital teams to continuously optimize and innovate to deliver more engaging digital experiences. Using Pantheon’s WebOps platform, developers, marketers and IT are empowered to work together to develop, test, and release website changes quickly and reliably, knowing their sites will remain stable and secure – even during the biggest traffic spikes.

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