Based in Chicago with an international
Grant Thornton LLP is the U.S. member firm of Grant Thornton
International Ltd. Grant Thornton's service lines are divided into
audit, tax, and advisory services. In regards to industry, it
fields practices in consumer and industrial products; technology;
financial services and institutions; not-for-profit; construction,
real estate, and hospitality; global public sector (including
local, state, federal, and international governments); health care;
and private equity, among others.
Alexander Richardson Grant, the namesake of the firm, began his
accounting career at Ernst & Ernst (a predecessor of Ernst
& Young) but, at the tender age of 26, decided it was time to
be his own boss. Alexander Grant & Co. opened in Chicago in
1924 with a mission to provide accounting services to middle-market
companies. Grant died suddenly in 1938, but his firm continued to
grow. By 1961, net revenue exceeded $5 million, and in the late
1960s, Alexander Grant & Co. joined with firms in Australia,
Canada, and the U.K. to establish Alexander Grant Tansley Witt,
which operated internationally for 10 years. Grant Thornton
International was born in 1980 when Grant and 49 other
international accounting firms formed a global organization; by
1985, Alexander Grant & Co. was ranked the ninth-largest
accounting firm in the U.S. It changed its name to Grant
Thornton in 1986, a reflection of its affiliation with the U.K.
firm Thornton Baker (which also changed its name).
Today, Grant Thornton LLP employs nearly 6,500 people and is the
sixth-largest accounting firm in the U.S., according to
Accounting Today's latest rankings by revenue.