New Mountain Finance Corporation Sets Third Quarter 2011 Earnings Release Date and Webcast

NEW YORK--(BUSINESS WIRE)-- New Mountain Finance Corporation (the "Company") (NYSE: NMFC) today announced that it will release its financial results for the quarter ended September 30, 2011 on Monday, November 14, 2011 after the close of the U.S. financial markets. The Company will host an earnings conference call and audio webcast at 10:00am (Eastern Time) on Tuesday, November 15, 2011 to discuss its third quarter 2011 financial results.

All interested parties may participate in the conference call by dialing 1.866.713.8564 approximately 15 minutes prior to the call, international callers should dial 617.597.5312. Participants should reference New Mountain Finance Corporation and the participant passcode of 86872142 when prompted. This conference call will also be broadcast live over the Internet and can be accessed by all interested parties through the Company's website, http://www.newmountainfinance.com/investor-relations. To listen to the live call, please go to the Company's website at least 15 minutes prior to the start of the call to register and download any necessary audio software. Following the call you may access a replay of the event via audio webcast.

ABOUT NEW MOUNTAIN FINANCE CORPORATION

New Mountain Finance Corporation is a closed-end, non-diversified and externally managed investment company that has elected to be treated as a business development company under the Investment Company Act of 1940, as amended. The Company used all of the proceeds from its initial public offering and the proceeds from its concurrent private placement to acquire common membership units from New Mountain Finance Holdings, L.L.C. New Mountain Finance Holdings, L.L.C.'s investment objective is to generate current income and capital appreciation through the sourcing and originating of debt securities at all levels of the capital structure, including first and second lien debt, notes, bonds and mezzanine securities. In some cases, investments may also include equity interests. New Mountain Finance Holdings, L.L.C.'s investment activities are managed by its Investment Adviser, New Mountain Finance Advisers BDC, L.L.C., which is an investment adviser registered under the Investment Advisers Act of 1940. More information about New Mountain Finance Corporation can be found on the Company's website at http://www.newmountainfinance.com.

New Mountain Finance Corporation
Adam Weinstein, 212-220-4247
Chief Financial Officer

Source: New Mountain Finance Corporation

Released September 27, 2011