Citrin Cooperman has added partners and staff of MGI Repetti. The combination is scheduled to close on July 1.

KPMG LLP has acquired the business and technology consulting firm, Zanett Commercial Solutions. Terms of the deal were undisclosed.

A collection of accounting firm mergers and acquisitions…

J.D. Cloud & Co. LLP has agreed to merge with Clark Schaefer Hackett. The deal is set to close on July 1.

Paychex has acquired nettime solutions, LLC, a cloud-based time and attendance systems provider.

What’s greasing the wheels for the rise in mergers by U.S. companies? The tax man.

Medtronic Inc., the globe-spanning medical device maker founded in a Minneapolis garage in 1949, is poised to become the biggest company yet to escape the U.S. tax system by shifting its incorporation abroad.

CohnReznick LLP and Boston-based Ercolini & Company have signed a letter of intent to combine practices. The deal is expected to close on June 30.

Kennedy and Coe LLC plans to combine with Chico, Calif.-based firm, Matson and Isom. The merger, which is pending final approvals, is scheduled to close on Jan. 1, 2015.

A roundup of accounting firm mergers and acquisitions

Boyum & Barenscheer CPAs has acquired Peterson, Peterson & Associates CPAs.

By now the accounting profession is up to speed on KPMG acquiring Rothstein Kass. It was a pairing that kept the rumor mill churning.

The accounting profession has been anticipating this team-up for a few years now, but Accounting Today learned that official discussions didn’t start until earlier this year. “Deals of this size take time to come to agreement on,” said Scott Ozanus, deputy chairman and COO of KPMG. “To be quite honest, we didn’t literally start talking to the principals of [Rothstein Kass] until January 2014.”

A roundup of recent accounting firm mergers and acquisitions.

Stephen Mankowski CPA of Hatboro, and Edward Caine of Bryn Mawr, Penn., agreed to merge their practices after becoming friends through their respective leadership positions in the National Conference of CPA Practitioners.

KPMG LLP and Rothstein Kass, a leading professional services firm in the hedge fund industry, have entered into an agreement to merge. Terms of the deal are undisclosed and it is expected to wrap up in a few weeks.

Dixon Hughes Goodman LLP has added Cohen Rutherford + Knight PC to its national health care practice, DHG Healthcare.

Eide Bailly has expanded its offering into Washington with the addition of McDirmid, Mikkelsen & Secrest. The deal is expected to close on June 16.

WeiserMazars LLP has completed its merger with ICS Consulting Partners, a boutique internal audit, regulatory compliance and credit risk management consulting firm catering to the banking industry.

Clark Schaefer Hackett has added the Columbus-based firm Schoonover Boyer + Associates to its firm. The new addition gives CSH’s Columbus office 87 associates, which brings the total staff to 394.