Insero acquires DeMott & Smith CPAs

Insero Advisors LLC, a Regional Leader firm based in Rochester, New York, has acquired DeMott & Smith CPAs, also headquartered in Rochester.

Insero Advisors, which also has offices in Ithaca, New York, ranked No. 30 on Accounting Today‘s 2025 list of Regional Leaders for the Mid-Atlantic, with $24 million in annual revenue, 23 partners and 128 other employees. The deal with DeMott & Smith will add two partners and 10 employees to Insero, for a total of 25 partners and 138 employees. Financial terms of the deal were not disclosed. Through the deal, Insero plans to enhance its tax compliance and advisory solutions by expanding capacity and capabilities for clients.

“Insero has always been committed to helping our clients succeed by providing solutions that address their unique challenges and opportunities,” said Insero CEO Nancy Catarisano in a statement Friday. “We are excited for this next step as we welcome the DeMott & Smith team and clients.”

In January, Insero announced a strategic investment from Rallyday Partners, a private equity firm based in Denver. As is common with PE-funded accounting firms, Insero now operates an alternative practice structure in which Insero & Co. CPAs, LLP, a licensed CPA firm, provides attest services, and Insero Advisors, LLC, provides business advisory, tax and other non-attest services. 

Insero’s strategy is to partner with other like-minded public accounting, advisory and professional services firms, adding more service lines.

“Our decision to join Insero reflects our shared values, and we are confident that together we will continue to provide our clients with the highest quality of service,” said Jason DeLaurentiis, who is joining Insero as a partner, in a statement. 

DeMott & Smith CPAs was founded in 1988. “We are excited to join the Insero team,” stated Ben Dobrzynski, who is also joining Insero as a partner. “This transaction combines the collective strength, expertise, and resources of both firms to create a stronger foundation for the future, ensuring our clients benefit from even greater value, continuity, and personal service for years to come.”