Jimmy Sexton

Chief Financial Officer ClickHouse

Last Reviewed: September 27, 2026

Executive Summary

Jimmy Sexton is Chief Financial Officer of ClickHouse, the company behind the open-source ClickHouse real-time analytics database. He joined in 2025. His career has been in investor-facing finance at high-growth enterprise software companies: he led investor relations at Snowflake through its years as a public company and was earlier the investor contact at ServiceNow. That background matters at ClickHouse now. The company raised at a $15 billion valuation in January 2026, and TechCrunch has written that hiring a CFO like him is usually read as a sign of preparation for public markets.

Career Highlights

• Chief Financial Officer of ClickHouse since 2025, announced as part of a wider expansion of its leadership team alongside a Series C extension.
• Spent six years in finance leadership at Snowflake, including leading investor relations. He was the named investor contact on Snowflake’s quarterly earnings releases from its first report as a public company in December 2020 to 2025.
• Earlier held finance roles at ServiceNow, where he was the named investor contact on its earnings releases in 2017 to 2019.
• At ClickHouse, works alongside a board that added former Snowflake and ServiceNow CFO Mike Scarpelli in September 2026.

Professional Journey

Sexton’s public record begins at ServiceNow. From 2017 to early 2019 its quarterly earnings releases, filed with the SEC, name him as the investor contact. That is the finance role that deals most directly with public-market shareholders and analysts.

He then moved to Snowflake. ClickHouse describes the Snowflake period as six years in finance leadership, including leading investor relations. Snowflake listed on the New York Stock Exchange in September 2020. From its first quarterly results as a public company, filed in December 2020, through its August 2025 results, its earnings releases name him as investor contact. He therefore spoke for the company to investors through its first years as a listed company.

In autumn 2025 he joined ClickHouse as Chief Financial Officer. ClickHouse makes a column-oriented database built for real-time analytics, is led by CEO Aaron Katz, and counts Snowflake among its main competitors. The company announced his hire on 7 October 2025, alongside a Series C extension and the arrival of a new chief revenue officer and head of people. It said it had passed 2,000 customers and more than quadrupled annual recurring revenue over the previous year.

The company has grown quickly since then. It raised a $400 million Series D led by Dragoneer Investment Group at a $15 billion valuation in January 2026, and by May 2026 it had reached $250 million in annualized revenue and more than 4,000 customers, according to TechCrunch. In September 2026 ClickHouse appointed Mike Scarpelli, the former Snowflake and ServiceNow CFO, to its board. It described the appointment as part of a deliberate build-out of its finance and governance capabilities that included hiring Sexton.

Education

No education record was found in any source consulted.