NISA Investment Advisors, L.L.C. (NISA) is an employee-owned investment management firm headquartered in St. Louis, Missouri. NISA manages more than $13 billion** in assets for 54 institutional clients, including corporate defined benefit and stable value plans, endowments, foundations, VEBA trusts and Nuclear Decommissioning Trusts (NDTs). As of June 15, 2001, NISA managed $3.7 billion in NDT fixed income and equity portfolios for 21 utilities.
* Prior to 1994, the Survey was prepared by NISA's predecessor, National Investment Services of America, Inc.