BerryDunn Merges with Burzenski & Company

Baretz+Brunelle Acquires Berardi Consulting LLC

October 20, 2021

Consulting

Baretz+Brunelle has merged Berardi Consulting LLC into its firm, with founder Jeff Berardi joining Baretz+Brunelle as a partner. The acquisition adds legal-industry marketing and business development advisory capabilities to Baretz+Brunelle’s NewLaw practice and expands its advisory services offering to Am Law and other legal-sector clients.

Plante Moran Acquires/Combines With Tonneson + Co

June 14, 2025

Accounting & Tax

Plante Moran announced that Boston-based accounting and advisory firm Tonneson + Co will join Plante Moran effective July 1, 2025. The combination expands Plante Moran’s East Coast presence and enhances capabilities for clients and staff while preserving Tonneson’s culture and relationships.

Citrin Cooperman Acquires Berdon LLP's Nonattest Business

February 1, 2023

Professional Services

Citrin Cooperman Advisors LLC has acquired the nonattest business of New York-based Berdon LLP, adding approximately $110 million in revenue and ~450 partners and associates. The combined firm will have annual revenue exceeding $600 million and a team of over 2,400 professionals, expanding Citrin Cooperman's capabilities across real estate, construction, family office, and manufacturing & distribution clients.

Thompson Coburn Combines with Hahn & Hessen

July 1, 2021

Legal Services

Thompson Coburn LLP has combined with New York-based Hahn & Hessen LLP, effective July 1, 2021, adding a 44-attorney boutique focused on bankruptcy, commercial finance and complex litigation. The combination creates a national firm of more than 400 attorneys across seven offices and strengthens Thompson Coburn's financial services and restructuring capabilities in New York.

Squire Acquires HintonBurdick to Expand Intermountain West Footprint

January 1, 2026

Accounting & Tax

Squire, a Utah-based accounting firm, announced it will acquire regional CPA firm HintonBurdick. The effective closing date is January 1, 2026, and the combination expands Squire’s footprint across Utah, Arizona, and Nevada while deepening advisory capabilities.

Citrin Cooperman Acquires Barkin, Perren, Schwager & Dolan (BPSD)

August 12, 2025

Accounting & Tax

Citrin Cooperman Advisors LLC has acquired substantially all assets of Barkin, Perren, Schwager & Dolan, LLP (BPSD), a Woodland Hills, California-based accounting and advisory firm. The deal expands Citrin Cooperman’s Southern California presence and capabilities in sectors including entertainment and professional services; BPSD joins with three partners and more than 20 professionals.