Aaron Billings

Chief Financial Officer 66degrees

Last Reviewed: September 27, 2026

Executive Summary

Aaron Billings is Chief Financial Officer of 66degrees, a Chicago-headquartered AI, data and Google Cloud services firm backed by Sunstone Partners. He was promoted to the role in August 2023 from Senior Vice President of Accounting & Administration, taking responsibility for finance, accounting and operational analytics as the firm’s previous CFO, Ben Kessler, moved up to President. He continues to be listed as CFO on the company’s leadership team.

Career Highlights

• Chief Financial Officer of 66degrees since his promotion in August 2023, responsible for finance, accounting and operational analytics.
• Served as Senior Vice President of Accounting & Administration at 66degrees before becoming CFO.
• Succeeded Ben Kessler, who had held the combined Chief Operating Officer and Chief Financial Officer role, as CFO.

Professional Journey

Billings came up through the finance function of 66degrees. The firm was formed when two Google Cloud partners, Cloudbakers of Chicago and Qwinix of Denver and Mysore, merged and rebranded as 66degrees in 2021. It added Orlando data analytics firm Pandera Systems the following year and is backed by the private equity firm Sunstone Partners.

He held the post of Senior Vice President of Accounting & Administration before 66degrees announced his promotion to Chief Financial Officer on 10 August 2023. The same announcement named Ben Kessler, until then Chief Operating Officer and Chief Financial Officer, as President, and stated that Matt Kestian was stepping down as CEO to become a board advisor. Billings’s remit as CFO covers finance, accounting and operational analytics. Sunstone Partners managing partner and 66degrees board member Michael Biggee congratulated both Billings and Kessler in the release.

Since then 66degrees has opened its global headquarters and client innovation center in Chicago and added offices in Bengaluru and Pune. It now describes itself as an AI-native delivery firm working across healthcare and life sciences, supply chain, retail and financial services, and Billings remains CFO on its current leadership team.

No first-party or dated press source for his career before 66degrees was found.

Education

No education record was found in any primary source.