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Welcome to Rainier Investment Management

Rainier Investment Management, LLC is dedicated to enhancing client returns through insightful and disciplined identification of growth companies. Rainier is headquartered in Seattle, Washington and manages assets in separate accounts, collective trusts and the Rainier Funds. Rainier offers U.S. equity strategies covering all market cap ranges, fixed income, and international equity management.

Rainier Investment Management is an affiliate of Manning & Napier Advisors, LLC (Manning & Napier), a registered investment advisor with the U.S. Securities and Exchange Commission.  Manning & Napier was founded in 1970 and is headquartered in Rochester, NY.

Rainier Funds Daily Closing

As of 1/12/2018SymbolClosing
Small/Mid Cap - ORIMSX$37.48
Small/Mid Cap - IRAISX$40.32
Rainier Investment Management is pleased to announce a strategic partnership with Manning & Napier, Inc.  For details, please click here.
The Rainier International Discovery Fund has been reorganized as a Series of the Manning & Napier Fund, Inc. Our affiliate, Manning & Napier Advisors, LLC, is now the investment advisor of the Manning & Napier Fund, Inc. Rainier International Discovery Series.  Rainier is the sub-advisor to the fund and remains responsible for day-to-day portfolio management. To find out more information about the Manning & Napier Fund, Inc. Rainier International Discovery Series please visit
Mutual fund investing involves risk. Principal loss is possible.

The Rainier Funds are offered only to United States residents, and information on this site is intended only for such persons. Nothing on this web site should be considered a solicitation to buy or an offer to sell shares of any Rainier Fund in any jurisdiction where the offer or solicitation would be unlawful under the securities laws of such jurisdiction. Please refer to the prospectus for important information about the investment company including objectives, risks, charges and expenses. Please click here for a summary prospectus. Read and consider it carefully before investing. You may also obtain  a hardcopy of the prospectus by calling 800.280.6111.

The Rainier Funds are distributed by Quasar Distributors, LLC.