Top 400 accounting firm MahoneySabol, based in Glastonbury, CT, has combined with fellow Gastonbury accounting firm Giamalis and Company, effective Jan. 15.

Financial terms of the deal weren’t disclosed. The combined firm will continue to operate as MahoneySabol & Company LLP.

From left: Michael Sabol, Stephen Giamalis, and James Mahoney

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With this merger, MahoneySabol is broadening its client base and added nine experienced professionals from Giamalis to its team. Founded in 1990, MahoneySabol’s 60-plus accounting professionals and administrative support staff serve clients throughout the region.

“This merger is a significant milestone for MahoneySabol as it aligns with our growth strategy and reinforces our commitment to providing high-quality services to our clients,” James Mahoney, managing partner at MahoneySabol, said in a statement. “Giamalis and Company has a stellar reputation, and we are excited to welcome their team into our organization.”

Michael Sabol, a partner at MahoneySabol, added, “We are thrilled to welcome the talented professionals from Giamalis and Company into the MahoneySabol family. This strategic merger aligns with our vision of expanding our capabilities and delivering exceptional value to our clients.”

Giamalis and Company is a full-service accounting firm that offers a wide range of tax services, as well as strategic planning, representation services, and year-round consultation, training, and assistance, to clients that include corporations, business partnerships, limited liability companies, limited liability partnerships, individuals, and trusts and estates.

Clients of both firms can expect a seamless transition as MahoneySabol works to integrate the operations, ensuring continuity of service. The combined resources and expertise will enable MahoneySabol to continue to offer clients a broad range of services, including tax planning, audit and assurance, business advisory, and more.

“While it’s been our privilege to serve our clients for the past 29 years, given our continued growth, we feel that a larger organization will allow us to provide a wider array of services and greater depth to our clients,” said Stephen Giamalis, former principal at Giamalis and Company who is now a partner at MahoneySabol. “Additionally, the firm’s membership in the BDO Alliance USA provides national and international expertise through the international BDO network.”