CLA (CliftonLarsonAllen) continues the legacy of quality, service, and experience that each Clifton Gunderson and LarsonAllen has built for more than 60 years.

A rich past leads to a bright future.

CLA (CliftonLarsonAllen) continues the legacy of quality, service, and experience that each Clifton Gunderson and LarsonAllen has built for more than 60 years. The joint firm is unique in the industry due to its deep industry specialization, seamless integrated capabilities, primary focus on privately held businesses and their owners as well as governmental and nonprofit organizations, and career-building strategy. We continue to hold true to the values and culture that have made the individual practices successful in the past.

Clifton Gunderson

Clifton Gunderson was founded in 1960 in Peoria, Illinois, as Clifton, Gunderson, Coker and DeBruyn. The firm's first acquisition occurred in Illinois in 1965. In 1973, its name was shortened to Clifton Gunderson; it became a limited liability partnership (LLP) in 2001. From 1976 to 1978, Clifton Gunderson added firms in Colorado, Wisconsin, and Missouri. From 1982 to 1987, it expanded to Maryland, Arizona, Indiana, and Iowa. Expansion continued into Ohio and Texas in the 1990s, and by the end of the decade, Clifton Gunderson had grown to become a well-known regional player within the accounting profession.

In 2009, Kris McMasters became the firm's fourth chief executive and the accounting profession's first female CEO among the top 25 firms. The year 2010 brought five acquisitions, and by 2011, Clifton Gunderson had expanded into California and Pennsylvania and became a powerhouse in the middle market.


Young entrepreneurs Rholan Larson and John Allen started a small public accounting practice in the suburbs of Minneapolis in 1953. Bob Weishair joined their firm in 1957 to form Larson, Allen, Weishair & Co., LLP. Twenty years later, the practice had expanded to 65 people.

In 1987, Larson, Allen, Weishair & Co., LLP swelled to 165 employees and moved to downtown Minneapolis. Gordy Viere was elected CEO in 1989. Under his leadership, the firm began expanding in earnest throughout Minnesota, adding offices in St. Cloud, Brainerd, and St. Paul by 1990. In the following decade, locations were opened through a series of acquisitions in Austin, Minnesota (1993); St. Louis, Missouri (1995); Charlotte, North Carolina (1998); and Philadelphia, Pennsylvania (1999).

In the 2000s, growth through acquisitions continued in other pockets of the country, including Arizona, Florida, Massachusetts, Texas, Wisconsin, and Washington DC. The firm changed its legal name to LarsonAllen LLP (LarsonAllen) in 2007. In 2010, LarsonAllen moved into the Pacific Northwest, adding locations throughout Washington and Idaho.

By 2011, LarsonAllen had established a presence in 40 office locations, employed about 1,800 people, and recorded revenues of approximately $280 million.