Mergers and Acquisitions | August 19, 2026
BST & Co. and Gallagher Flynn Merge to Form BST Gallagher Flynn
Latham, NY-based BST & Co. CPAs, an INSIDE Public Accounting top 300 firm, and South Burlington, VT-based accounting and advisory firm Gallagher, Flynn & Co. have combined to create BST Gallagher Flynn.
Financial terms of the deal weren’t disclosed.
The new firm is touted as a regional accounting and advisory firm positioned to serve clients across the Northeast and beyond. Together, the combined firm gives clients access to broader expertise across assurance, tax, advisory, outsourced services, and specialized consulting disciplines. It also has greater capacity to invest in technology, innovation, and talent while preserving the personalized service and responsiveness that have long defined both organizations, officials say.
“Throughout this process, it became clear that our firms share many of the same values and aspirations,” Ron Guzior, managing partner of BST & Co., said in a statement on Aug. 18. “We are both committed to exceptional client service, investing in our people, and building organizations positioned for long-term success. By bringing our firms together, we are creating real value for our clients and new opportunities for our professionals.”
The merger also strengthens the firm’s ability to deepen industry specialization, expand advisory capabilities, and continue evolving alongside the changing needs of clients and the profession.
“For generations, both firms have built their success on relationships,” Jason Hamilton, managing partner of Gallagher, Flynn & Co., said in a statement. “As we spent time getting to know one another, we found strong alignment in how we serve clients, develop our people, and think about the future. This merger is not about changing what made either organization successful. It is about building on those strengths and creating something even stronger together.”
Founded in 1976, BST & Co. is a regional accounting and advisory firm providing assurance, tax, consulting, valuation, forensic accounting, outsourcing, and specialized advisory services to businesses, nonprofit organizations, governmental entities, and individuals. Celebrating its 50th anniversary in 2026, BST’s capabilities include accounting and advisory, cybersecurity, marketing, talent strategies, valuation, forensic accounting, and other specialized advisory services.
Founded in 1961, Gallagher, Flynn & Co. is an accounting and advisory firm providing assurance, tax, advisory, outsourced accounting, and consulting services to organizations and individuals across a broad range of industries.
Photo caption: Jason Hamilton (left), managing parter of Gallagher Flynn, and Ron Guzior, managing partner of BST & Co.
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