10. Piedmont Investment Advisors L.L.C.

Piedmont Investment Advisors L.L.C. is an asset management firm specializing in core equity and fixed income management. Founded by Isaac Green in 2000, the Durham-based firm manages approximately $1.8 billion assets–down 8% from the previous year.

In June 2008, Piedmont Investment Advisors established the Corverus Fund for institutional and high-net worth investors and retail customers. The fund, which Green predicates will grow to $1 billion within the near future, invests in large-cap U.S. stocks.