Armanino, one of the a top 20 accounting and consulting firms in the U.S. and a leader in AI-driven innovation, today announced that it is welcoming the team from MSTiller (“MST”), a premier Southeast-focused accounting firm, into the Armanino organization. The addition of the MST team brings a deep bench of professionals who share a mutual commitment to serving clients in an increasingly complex business environment.

Founded in 1956, MST has built a strong reputation advising middle-market organizations, family-owned businesses, and private foundations across a broad range of industries. With approximately 110 professionals across offices in Georgia and New York, MST expands Armanino’s presence across the Southeast while adding depth in tax, audit, advisory services and more.

“MST is an exceptional firm with a strong reputation, talented professionals, and trusted client relationships that have proven the test of time,” said Matt Armanino, CEO of Armanino Advisory, LLC. “As client needs become more complex, it’s critical that firms have the depth, scale, and specialized expertise to keep pace. MST strengthens our ability to deliver our services with an incredible focus on client outcomes while deepening our presence in one of the fastest growing regions of the U.S.”

Through Armanino, MST clients gain access to the full breadth of capabilities a national firm offers, including advanced technology and digital transformation consulting, as well as specialty tax services such as state and local tax, multi-state tax planning, international tax and transfer pricing, valuations, tax credits and incentives, and transaction-related advisory services. These offerings enable MST clients to navigate increasingly complex regulatory, operational, and transactional challenges while continuing to work with the same trusted MST teams.

“Armanino stood out because of its culture, foresight, and a trusted relationship built over decades,” said Angela Griner, Managing Partner of MST. “Our long history of working alongside Armanino through the Moore Global network, combined with their commitment to technology, AI, and modern service delivery, gave us confidence that we can better serve increasingly complex client needs while maintaining the core values of our firm that have defined us since our founding.”

“This is ultimately about better serving clients and providing our team with best-in-class resources,” added Greg Hayes, Partner and Gwinnett office leader. “By combining MST’s trusted relationships and regional strength with Armanino’s expanded capabilities, we’re creating an opportunity that allows clients to grow confidently while continuing to work with the advisors they rely on.”

The Southeast continues to be a key growth region for Armanino, and the addition of MST enhances the firm’s ability to deliver its differentiated services across the region while expanding its national reach.

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About Armanino
"Armanino" is the brand name under which Armanino LLP and Armanino Advisory LLC, independently owned entities, provide professional services in an alternative practice structure in accordance with law, regulations, and professional standards. Armanino LLP is a licensed independent CPA firm that provides attest services, and Armanino Advisory LLC and its subsidiary entities provide tax, advisory, and business consulting services. Armanino Advisory LLC and its subsidiary entities are not licensed CPA firms.

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