MahoneySabol Merges in Giamalis and Company

Glastonbury, Conn.-based MahoneySabol (FY22 net revenue of $11 million) announces the successful merger of Giamalis and Company, also of Glastonbury.

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

By incorporating the strengths of Giamalis and Company’s talented professionals, MahoneySabol aims to further elevate its capabilities, offering comprehensive financial and accounting services tailored to the unique needs of each client. The combined firm will continue to operate as MahoneySabol & Company, LLP.

“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,” said James Mahoney, MP at MahoneySabol. “Giamalis and Company has a stellar reputation, and we are excited to welcome their team into our organization.”

“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. Additionally, the firm’s membership in the BDO Alliance USA provides national and international expertise through the international BDO network,” said Stephen Giamalis, former principal at Giamalis and Company. Upon the merger, Giamalis is now a partner at MahoneySabol.


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