Anton Collins Mitchell LLP, based in Denver, is expanding to Laramie, Wyo., by merging in Mader Tschacher Peterson and Co., LLC, effective Jan. 1, 2016.

Indiana accounting firms Katz, Sapper & Miller and Krouse, Kern & Co., are joining forces.

Schafer & Associates P.C., an accounting firm based in Billings, Mont., will become part of Eide Bailly LLP, a regional CPA and business advisory firm, on Dec. 14.

BDO USA LLP has expanded the firm’s San Diego-area practice by adding CEA LLP in Carlsbad, Calif.

Regional accounting firm Rogoff & Company has merged in the CPA practice of Ira Rubin in New York City, effective Nov. 1, 2015.

Southern California accounting and consulting Squar Milner LLP is expanding its presence in the Encino neighborhood of Los Angeles by merging in Solomon, Winnett and Rosenfield, effective Jan. 1, 2016.

The shareholders of Elliott Davis Decosimo and Crowell & Crowell have voted to combine their firms, effective Jan. 1, 2016.

Two firms in Grand Junction, Colo., Stranger & Lautz Professional Group and Mackley & Tallman Accounting, have merged to become Stranger, Tallman & Lautz Accounting, effective November 1.

BDO Canada LLP has merged in Majewski Shaler & Co., a Vancouver-based accounting practice.

BDO Canada LLP has acquired H&A Forensic Accounting, a Toronto-based professional forensic accounting and advisory firm.

Net@Work has acquired the Peoria, Ill.-based Sage practice of CliftonLarsonAllen.

BDO USA has re-elected Wayne Berson to a second term as CEO of the firm.

Deloitte has acquired Bonaccorso & Associates, a boutique accounting firm in Vaughan, Canada that serves small and midsize private companies with a focus on family businesses.

CliftonLarsonAllen has expanded its presence in Arizona by merging in a Tucson firm, Camp Lowell CPAs, and in Pennsylvania by acquiring KFMR Katz Ferraro McMurtry PC in Pittsburgh, effective Nov. 1, 2015.

PricewaterhouseCoopers Canada has bolstered its presence in British Columbia by combining practices with RHB Schmitz de Grace, a local chartered accounting firm based in Prince George, B.C.

KPMG LLP has acquired all of G2 FinTech’s U.S. tax software and intellectual property, including G2’s main product, TaxGopher.

Top 100 Firm Marcum LLP announced that it has merged with Illinois-based accounting firm Frost, Ruttenberg & Rothblatt PC, as of November 1.

Kabat, Schertzer, De La Torre, Taraboulos and Company, a Miami-based accounting and tax advisory firm, has merged in Roth, Jonas and Mittelberg, a nearly 50-year-old Miami firm.

Top 100 firm Citrin Cooperman has acquired Joel Popkin & Company, expanding its presence in New York City and adding new clients in the restaurant and nightclub business.

Top 100 accounting firm Mountjoy Chilton Medley LLP plans to merge in Cincinnati-based CPA firm Cooney Faulkner & Stevens, effective Jan. 1, 2016.