Company: NMFCZ
Filing Date: 2025-05-23
Form Type: 40-17G
Source: 0001580642-25-003281
Chunk: 37

Company: New Mountain Finance Corp
Filing Date: 2025-05-23
Form: 40-17G
Chunk 37
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ocurrency means a digital or electronic medium of exchange, operating independently of a central authority, in which encryption techniques are used to regulate the generation of units and to verify the transfer of such units from one person to another.

All other provisions of the bond remain unchanged.

| SR        
 6343 0321 | Page   
 1 of 1 |

<div align='center'>Exhibit B

CERTIFICATE OF THE SECRETARY</div>

The undersigned, Eric Kane, Corporate
Secretary of New Mountain Finance Corporation, a Delaware corporation (“NMFC” or the “Company”),
does hereby certify that:

| 1. | This certificate is being delivered to the Securities and Exchange Commission                                                              
 (the “SEC”) in connection with the filing of the Company’s fidelity bond (the “Bond”)                                                      
 pursuant to Rule 17g-1 of the Investment Company Act of 1940, as amended, and the SEC is entitled to rely on this certificate for purposes 
 of the filing.                                                                                                                             |

| 2. | The undersigned is the duly elected, qualified and acting Secretary of the                                           
 Company, and has custody of the corporate records of the Company and is a proper officer to make this certification. |

| 3. | Attached hereto is a copy of the resolutions approved by the Board of Directors                            
 (the “Board”) of the Company, including a majority of the members thereof who are not “interested persons” 
 of the Company, approving the amount, type, form and coverage of the Bond.                                 |

IN WITNESS WHEREOF, the undersigned has caused this
certificate to be executed this 23rd day of May, 2025.

| /s/ Eric Kane       |
| Eric Kane           |
| Corporate Secretary |

WHEREAS, Section
17(g) of the Investment Company Act of 1940, as amended (the “1940 Act”), and Rule 17g-1(a) thereunder (“Rule 17g-1”), require business development companies (“BDCs”), such as NMFC, to provide and maintain
a bond which shall be issued by a reputable fidelity insurance company, authorized to do business in the place where the bond is issued,
to protect the BDC against larceny and embezzlement, covering each officer and employee of the BDC who may singly, or jointly with others,
have access to the securities or funds of the BDC, either directly or through authority to draw upon such funds of, or to direct generally,