Sonny Thadani rejoins Accordion as New York office leader

Sonny Thadani rejoins Accordion as New York office leader

20 October 2025 Consulting.us
Sonny Thadani rejoins Accordion as New York office leader

Sonny Thadani has rejoined Accordion, a financial consultancy focusing on the private equity sector, as office leader of its New York City headquarters.

In his new role, Thadani will oversee strategy and culture of the firm’s largest office.

Thadani joined Accordion in 2010, shortly after its founding, and helped grow the consultancy as chief operating officer – overseeing operations, infrastructure, and people strategy.

He left the firm in 2020 to co-found and lead Robin, a mental coaching platform for students.

Prior to joining Accordion, Thadani spent seven years in the real estate industry, serving as a VP at Brown Harris Stevens and as an associate at Kurland Realty.

He has a bachelor of science degree from Syracuse University.

Sonny helped build this firm from the ground up and was part of Accordion’s fabric even during his time away,” said Nick Leopard, founder and CEO of Accordion. “His return reflects our commitment to investing in proven leaders who not only understand the evolving private equity landscape but also embody our people-first culture.”

Accordion was founded in 2009 and has grown to 1,400 people across eight offices in the US and international locations in the UK and India.

The firm supports the office of the CFO at private equity-backed companies with services across foundational accounting, strategic financial planning and analysis enhancement, performance, transaction support, and turnaround and restructuring solutions.

“The PE landscape is evolving quickly,” said Thadani. “Accordion has always stayed ahead of the curve - first with our focus on the Office of the CFO, and now with our AI and data solutions. In today’s more competitive environment, where the stakes are higher than ever, I’m energized by the challenge of helping private equity navigate what comes next.”

Accordion earlier this year added Scott Pinsonnault and John Shepherd as senior managing directors in its turnaround and restructuring practice.

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