In one of the larger unions between CPA firms in recent years, Amper Politziner & Mattia has merged with Goldenberg Rosenthal, creating a formidable presence in the Northeast with a combined entity that includes 84 partners, 600 employees and annual revenues of roughly $113 million.The merger becomes effective July 1. Terms were not disclosed. Once completed, the consolidated firm will do business under the brand of Amper Politziner Mattia.

The Securities and Exchange Commission has charged a former Ernst & Young partner, an investment banker and her father with insider trading involving information about potential M&A transactions.

CPA firm Marcum & Kliegman is expanding from New York to New Jersey by merging with RosenfarbWinters, a specialist in forensic accounting.

Accounting firm J.H. Cohn said it plans to combine practices with Good Swartz Brown & Berns, a firm based in Woodland Hills, Calif.

Wayne R. Pinnell has been leading Haskell & White as the firm continues to expand its mergers and acquisitions practice.

HintonBurdick CPAs & Advisors plans to merge with Wilson & Co. CPAs, uniting the two Utah firms.

iPro One has reached an agreement to purchase an ownership interest in HbK Sorce Financial, an investment advisory and wealth management firm with more than $1 billion in assets under management.

Amper Politziner & Mattia has merged with Goldenberg Rosenthal to create one of the largest regional firms in the Northeast.

Three accounting firms based in Jackson, Miss., are combining with CPA firm BKD LLP.

Revenue at accounting firm J.H. Cohn rose 26 percent to $221,371,000 for the fiscal year ended Jan. 31, 2008.

Entertainment and sports accountant Mike Vaden and his Vaden Group have allied with regional accounting and business advisory firm Joseph Decosimo & Co. to form a business management practice aimed at the entertainment industry and high-net-worth individuals.

California accounting firm Macias Gini & O'Connell has acquired Moreland & Associates, expanding its Sacramento base to Newport Beach and San Marcos.

New England regional accounting firm Vitale Caturano has acquired Jornata, a Boston-based technology solutions provider that specializes in Microsoft's SharePoint collaboration software.

Value-added reseller Net@Work has acquired Integral Computer Services and Brian Shube Consulting, expanding its Sage Software enterprise resource planning, customer relationship management and accounting practices.

Accounting firm Clifton Gunderson said it has acquired the Arlington, Va., federal government practice of UHY LLP, effective April 1.

Wolters Kluwer Law & Business has agreed to acquire the Accountants Division of MYOB UK and MYOB Ireland for 35.5 million pounds ($70.5 million), bringing the small business accounting and tax software developer into Wolters Kluwer UK's CCH Software division.

Tax Partner Named Woman of the Year

Business advisory firm FTI Consulting has acquired Forensic Accounting LLP, a London-based firm that provides expert witness and investigation services in accounting disputes, regulatory inquiries and due diligence reviews.

H&R Block has sold the mortgage loan-servicing business of its Option One Mortgage Corp. subsidiary to investor Wilbur Ross' private equity firm in a transaction valued at approximately $1.1 billion.

Accounting firms Gray, Gray & Gray and Patterson & Gerry have merged, expanding Gray's presence in the Massachusetts market.