Preston, Romano & Shea LLP has merged into Fesnak & Associates LLP.

Top 100 Firm Carr, Riggs & Ingram LLC has added the Atlanta-based firm Peterson, Coleman & Marett.

Avalara has acquired UPC code taxability database UPC Matrix Master, which adds in a multi-state, product database that maintains taxability information for more than 10 million products in thousands of tax jurisdictions across the U.S.

Crowe Horwath LLP has announced that it plans to add the Microsoft Dynamics automotive consulting team of ExtOrg to its roster.

New York-based Tinari Economics Group has agreed to join the New York and New Jersey regional CPA firm Sobel & Co. as a wholly-owned subsidiary.

Warren Averett LLC has merged with Atlanta-based Gifford, Hillegass & Ingwersen and Pender Newkirk & Company of Tampa, Fla.

BlumShapiro has merged with the Providence, R.I.-based firm Sullivan & Company.

SS&G has merged with Chicago-based Silver, Lerner, Schwartz & Fertel. The new addition comes with 45 professionals, which doubles SS&G’s numbers in the Chicago market.

Herbein + Company, Inc. has acquired the internal audit, risk management and compliance service provider, Financial Outsourcing Solutions, for an undisclosed amount.

T100 Firm ParenteBeard LLC recently added the health care management consulting firm Presscott Associates Ltd. to its practice.

Briggs & Veselka Co. has initiated the "first phase" of its strategic growth plan with the acquisition of Houston-based White Garrison & Hill PC.

Gross, Mendelsohn & Associates, PA has merged with Cox Ferber & Associates LLC of Cockeysville, Md.

Peterson Sullivan LLP expanded its Seattle practice with the addition of Davenny & Associates PS.

Sikich LLP has merged with Achieve Consulting, a supply chain consulting firm based in Warrenville, Ill.

Top 100 Firm, Kahn, Litwin, Renza & Co. Ltd., has agreed to merge with Fay & Associates.

Top 100 Firm, CliftonLarsonAllen LLP has merged with the Racine, Wis.-based CPA firm Jenkins & Vojtisek SC.

Global tax services firm Ryan LLC has acquired the Property Tax Services business from Thomson Reuters for an undisclosed amount.

CBIZ, Inc. has acquired “certain” assets of Diversified Industries, Inc. for an undisclosed amount.

CBIZ, Inc. has completed an acquisition of the non-attest assets of PHBV Partners LLP, the government health care practice and separate legal entity of CliftonLarsonAllen.

Regional Leader BeachFleischman PC and Phoenix-based CPA firm Taylor, Duffy & Associates PC have merged, effective January 1.