Tweedy, Browne Company LLC is an American

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 investment advisory and fund

Mutual fund

A mutual fund is a professionally managed type of collective investment scheme that pools money from many investors to buy stocks, bonds, short-term money market instruments, and/or other securities.- Overview :...

 management firm founded in 1920. It currently (May 2009) manages almost 6 billion US dollars in separate accounts and three mutual funds. All of the funds are managed in accordance to the principles of Value Investing

Value investing

Value investing is an investment paradigm that derives from the ideas on investment and speculation that Ben Graham and David Dodd began teaching at Columbia Business School in 1928 and subsequently developed in their 1934 text Security Analysis...

 as popularized by Benjamin Graham

Benjamin Graham

Benjamin Graham was an American economist and professional investor. Graham is considered the first proponent of value investing, an investment approach he began teaching at Columbia Business School in 1928 and subsequently refined with David Dodd through various editions of their famous book...

. The firm's managing directors included well-known value investor Christopher H. Browne

Christopher H. Browne

Christopher H. Browne was a famous value investor. He graduated from the University of Pennsylvania in 1969 with a B.A. in history. He then joined the firm Tweedy, Browne, a favorite brokerage firm among prominent value investors like Benjamin Graham and Warren Buffett...

, who was the author of The Little Book of Value Investing

The Little Book of Value Investing

The Little Book of Value Investing is a book that was written by Christopher H. Browne in 2006 in order to teach ordinary investors how to value invest. The book's ISBN is 0470055898....

. Christopher H. Browne died on December 13, 2009. GuruFocus.com
The managers of Tweedy, Browne also published a number of freely available papers about investment strategies.

In 1997 Tweedy, Browne was purchased by the holding company

Holding company

A holding company is a company or firm that owns other companies' outstanding stock. It usually refers to a company which does not produce goods or services itself; rather, its purpose is to own shares of other companies. Holding companies allow the reduction of risk for the owners and can allow...

 Affiliated Managers Group

Affiliated Managers Group

Affiliated Managers Group Inc. is an American holding company headquartered in Beverly, Massachusetts that owns a number of financial-sector companies. AMG has been described as an "aggregator of investment management firms"...

for $300 million.