It has offices in Chicago, Baltimore, Boston, Dallas, Florham Park, Greenwich, Harrisburg, Houston, Long Island, Los Angeles, New York City, Orange County, Philadelphia, Pittsburgh, San Francisco, Seattle, Silicon Valley, Washington, D.C., West Palm Beach, Woodland Hills as well as South Africa.

[5] In June 2015 Andersen Global launched in Latin America with the addition of Mexican firms, NOVINT, Capin, Ibañez & Asociados and Montes, Hernández, López y Del Castillo.

[8][9] Through fall of 2016, they added services in Guatemala[10] and collaborations with mgpartners, a leading tax firm in Ireland[11] By the end of 2016, Andersen Global had a presence in 51 locations worldwide.

Through 2017, Andersen Tax debuts in Poland, Luxembourg, Switzerland, Israel, Canada, Turkey and Nigeria, initiates expansion in Egypt, Greece, Uruguay, Tanzania, Kenya, Ecuador and Cyprus through collaboration agreements and expands presence in Brazil to Rio de Janeiro.

The year 2018 has brought the debut of the Andersen name in Ireland, Egypt, France, Ecuador and Kenya along with notable expansion in Spain, Portugal, Mexico, UK, Luxembourg, Canada and Brazil.