Doeren Mayhew announced it has entered the New York market through the acquisition of 1RDG, a Rochester-based advisory firm, effective January 20, 2026, expanding the firm’s footprint with two new offices and adding advisory capabilities built around an integrated platform of compliance, management, and client advisory services.
Founded in 2005 by John Rizzo and Brian DiGiacco, 1RDG has positioned itself as a boutique firm that grew into what it calls Upstate New York’s financial center, and the combination is intended to deepen service delivery across audit, tax, outsourced accounting, and advisory, with sector focus that includes construction, health care, real estate, manufacturing, and private family offices.
The deal also brings Bailey Carr CPAs in Rochester and Bahgat & Laurito-Bahgat CPAs in Fredonia into Doeren Mayhew concurrently, adding more than 100 employees and seven partners, while Rizzo is set to continue leading the New York region as managing principal.
Doeren Mayhew said the deal is its first acquisition of 2026 and follows a year of rapid expansion that included 13 acquisitions and entry into new markets such as Nashville, Atlanta, and Miami, as the firm scales its national platform while emphasizing continuity for clients and expanded resources for professionals.
KEY QUOTES:
“What made this opportunity stand out wasn’t just the significant market, it was the people. The 1RDG team thinks like entrepreneurs and serves clients the way we do. While New York surfaced as a unique opportunity along our growth journey, it is one that became a very natural next step for us. We’re excited to partner with such a talented team while continuing to build and strengthen the trusted relationships 1RDG, and its counterparts, have cultivated across the market.”
Chad Anschuetz, Chief Executive Officer, Doeren Mayhew Advisors
“1RDG has long been known as The Hustle Firm, always embracing growth, change and the push to get outside our comfort zone. As our industry undergoes rapid transformation, the timing couldn’t be better to join a forward-thinking, historic firm like Doeren Mayhew. From our very first meeting with their team, it was clear the culture and opportunity were the perfect fit. We are excited to deliver expanded resources to our clients and an even stronger growth path for our people.”
John Rizzo, Managing Partner, 1RDG
“I don’t recall seeing a firm as diverse and entrepreneurial as 1RDG in some time. Their firm wasn’t built around delivering tax returns and financial statements but rather on how to solve their client’s business and financial problems and challenges. They felt Doeren Mayhew was the perfect culture and platform for them and had a similar approach to serving clients. In the last year, Doeren Mayhew has grown dramatically and more importantly has become a ‘destination place’ for high-performing talent.”
Allan D. Koltin, Chief Executive Officer, Koltin Consulting Group

