High Quality Content by WIKIPEDIA articles! Putnam Investments is a privately owned investment management firm founded in 1937 by George Putnam, who established one of the first balanced mutual funds, The George Putnam Fund of Boston. As one of the oldest mutual fund complexes in the United States, Putnam has over $125 billion in assets under management, 79 individual mutual fund offerings, 96 institutional clients, and over seven million shareholders and retirement plan participants.