Founded in 1970, Manning & Napier Advisors, Inc. serves clients in over 40 states and manages about $7 billion in client assets. Manning & Napier manages investments for a broad cross-section of clients, including Taft-Hartley and Corporate benefit plans, individuals, endowments and foundations, and municipalities. It remains an employee-owned firm, with 100% of the firm owned by full-time employees.. Financial Planning.