Shaun Clark

Clark said in a Biz Ninja interview that he experimented with website and server services while in high school. He later built a telephone answering service with a partner, handling calls for small businesses. He described the work as lasting about 12 years and helping him understand small-business needs.⁠[1]

An Inspired Insider biography says Clark studied computer science at Oregon State University and participated in Stanford UniversityStanford UniversityStanford University is a research university in California founded by Leland and Jane Stanford in 1885 and opened in 1891.Open the full entry’s innovation and entrepreneurship program. It does not establish a degree or specific attendance dates.⁠[2]

In a Mixergy interview, Clark recalled helping build an answering service after leaving college and using online marketing to expand it. He also discussed disagreements in the partnership and his experience as a minority shareholder; these are his own accounts of the earlier venture.⁠[3]

Clark founded InvoiceSherpa, software that helped small businesses automate accounts-receivable follow-up. In a 2018 interview, he said he built the business from home to about 1,000 customers before deciding to sell it.⁠[4]

In an interview with Success Inspired, Clark said he asked customers of his earlier software business what else they needed and repeatedly heard that they wanted more customers. He and a technical partner began developing a product to help businesses follow up with leads, initially selling directly to businesses.⁠[5]

HighLevel identifies Clark, Varun Vairavan and Robin Alex as the founders of the business in 2018.⁠[6]

Clark said some early small-business prospects saw value in the software but lacked time to implement it. The team came to see agencies serving those businesses as a route to delivery: agencies could help with implementation while the platform supported customer relationships, communications and automation.⁠[7]

In a 2018 interview, Clark said HighLevel had launched about six months earlier and was serving 10 agencies. He described software that followed up with leads through email, text and telephone; those figures describe the interview period only.⁠[4]

In an interview, Clark described his long professional connection with Vairavan and Robin Alex’s path from running a marketing agency to helping build HighLevel. He described both co-founders’ experience and skills as important to the venture.⁠[2]

In November 2021, HighLevel announced that a group led by PeakEquity Partners had invested more than $60 million for a minority stake. The announcement named Clark, Vairavan and Alex as co-founders and said representatives of the investor would join the board.⁠[8]

In April 2024, HighLevel announced a minority growth investment from General AtlanticGeneral AtlanticGeneral Atlantic is a global investment firm founded in 1980 that grew out of Chuck Feeney’s family investment business. Growth equity is at its core, and through GA Credit, BeyondNetZero and Actis it also invests in credit, the energy transition and infrastructure. As of June 30, 2026, its assets under management across all strategies were about $130 billion.Open the full entry. The company said Clark and the other co-founders would continue in leadership roles; financial terms were not disclosed.⁠[9]

Deloitte’s 2024 Technology Fast 500 ranking listed HighLevel at number 103 and named Shaun Clark as chief executive in that row. The ranking and title are historical and do not by themselves establish the company’s current size or his current position.⁠[10]

In an interview, Clark emphasized listening to customer feedback and learning from actual use before a product is perfect. He also discussed the role of the customer community in product improvements.⁠[1]

HighLevel: Official website: https://www.gohighlevel.com/ (opens in a new window). The company identifies Shaun Clark as a co-founder.⁠[11]