Investment adviser · CRD 155493

NEW MOUNTAIN FINANCE ADVISERS, L.L.C.

Investment adviser filing (IA)

NEW YORK, NY, United States · Form ADV filed Jun 1, 2026

Regulatory AUM: $11.2B
Client accounts: 13
Employees: 235
Advisory professionals: 45

Who they report serving

Form ADV · Item 5.D

Client types and their share of reported regulatory assets.

Client type	Clients	Regulatory assets	Share of AUM
Business development companies	5	$9,155,859,942	81.5%
Pooled investment vehicles	8	$2,072,385,169	18.5%

Filing source

Form ADV 2110083 · Jun 1, 2026 · Item 5.D

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

Private funds & service providers

9 Private funds

The count excludes feeder funds. Funds in the latest filing appear first, ordered by reported gross assets. Earlier funds retain their last reported values.

NEW MOUNTAIN NET LEASE PARTNERS II, L.P.Real Estate Fund · Last reported Jun 1, 2026$918MGross asset value

Form D fundraising filings

New Mountain Net Lease Partners II, L.P.

Feeder funds

NEW MOUNTAIN NET LEASE II DELAWARE FEEDER, L.P.

Auditor DELOITTE & TOUCHE LLP NEW YORK, New York, United States

Custodian CITY NATIONAL SECURITIES, INC. LOS ANGELES, California, United States Related to adviser: No

Custodian JP MORGAN CHASE BANK NA BROOKLYN, New York, United States Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: No
External marketing: No

DELOITTE & TOUCHE LLP
PCAOB 34

Fund details & source

Fund ID: 805-6013322558
Reported beneficial owners: 66
Minimum commitment: $0
Form D file number: 021-440391
Form D file number: 021-440429

Form ADV 2110083 · Jun 1, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

H-1 CREDIT FUND I, L.P.Private Equity Fund · Last reported Jun 1, 2026$87.8MGross asset value

Fund administrator STATE STREET FUND SERVICES, INC. BOSTON, Massachusetts, United States Investor statements: No (provided to no investors) Related to adviser: No

Auditor DELOITTE & TOUCHE LLP NEW YORK, New York, United States

Custodian STATE STREET BANK AND TRUST COMPANY BOSTON, Massachusetts, United States Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: Yes
External marketing: No

DELOITTE & TOUCHE LLP
PCAOB 34

Fund details & source

Fund ID: 805-5896726171
Reported beneficial owners: 2
Minimum commitment: $0

Form ADV 2110083 · Jun 1, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

I-1 CREDIT FUND I, L.P.Private Equity Fund · Last reported Jun 1, 2026$83.7MGross asset value

Fund administrator STATE STREET FUND SERVICES, INC. BOSTON, Massachusetts, United States Investor statements: No (provided to no investors) Related to adviser: No

Auditor DELOITTE & TOUCHE LLP NEW YORK, New York, United States

Custodian STATE STREET BANK AND TRUST COMPANY BOSTON, Massachusetts, United States Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: Yes
External marketing: No

DELOITTE & TOUCHE LLP
PCAOB 34

Fund details & source

Fund ID: 805-2398703263
Reported beneficial owners: 2
Minimum commitment: $0

Form ADV 2110083 · Jun 1, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

NEW MOUNTAIN GUARDIAN II MASTER FUND-B, L.P.Private Equity Fund · Last reported Jun 1, 2026$67.1MGross asset value

Fund administrator ALTER DOMUS CHICAGO, Illinois, United States Investor statements: No (provided to no investors) Related to adviser: No

Auditor DELOITTE & TOUCHE LLP GRAND CAYMAN, Cayman Islands

Custodian COMPUTERSHARE TRUST COMPANY, N.A MINNEAPOLIS, Minnesota, United States Related to adviser: No

Custodian U.S. BANK NATIONAL ASSOCIATION BOSTON, Massachusetts, United States Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: Yes
External marketing: No

DELOITTE & TOUCHE LLP
PCAOB 34

U.S. BANK NATIONAL ASSOCIATION
LEI 6BYL5QZYBDK8S7L73M02

Fund details & source

Fund ID: 805-3507133919
Reported beneficial owners: 2
Minimum commitment: $0

Form ADV 2110083 · Jun 1, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

NEW MOUNTAIN GUARDIAN II MASTER FUND-A, L.P.Private Equity Fund · Last reported Jun 1, 2026$38.2MGross asset value

Fund administrator ALTER DOMUS CHICAGO, Illinois, United States Investor statements: No (provided to no investors) Related to adviser: No

Auditor DELOITTE & TOUCHE LLP GRAND CAYMAN, Cayman Islands

Custodian COMPUTERSHARE TRUST COMPANY, N.A MINNEAPOLIS, Minnesota, United States Related to adviser: No

Custodian U.S. BANK NATIONAL ASSOCIATION BOSTON, Massachusetts, United States Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: Yes
External marketing: No

DELOITTE & TOUCHE LLP
PCAOB 34

U.S. BANK NATIONAL ASSOCIATION
LEI 6BYL5QZYBDK8S7L73M02

Fund details & source

Fund ID: 805-2196854403
Reported beneficial owners: 2
Minimum commitment: $0

Form ADV 2110083 · Jun 1, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

NEW MOUNTAIN GUARDIAN PARTNERS II, L.P.Private Equity Fund · Last reported Jun 1, 2026$17.9MGross asset value

Form D fundraising filings

New Mountain Guardian Partners II, L.P.

Fund administrator ALTER DOMUS CHICAGO, Illinois, United States Investor statements: No (provided to no investors) Related to adviser: No

Auditor DELOITTE & TOUCHE LLP NEW YORK, New York, United States

Custodian COMPUTERSHARE TRUST COMPANY, N.A MINNEAPOLIS, Minnesota, United States Related to adviser: No

Custodian U.S. BANK NATIONAL ASSOCIATION BOSTON, Massachusetts, United States Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: Yes
External marketing: No

DELOITTE & TOUCHE LLP
PCAOB 34

U.S. BANK NATIONAL ASSOCIATION
LEI 6BYL5QZYBDK8S7L73M02

Fund details & source

Fund ID: 805-4413172885
Reported beneficial owners: 11
Minimum commitment: $0
Form D file number: 021-283770

Form ADV 2110083 · Jun 1, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

NEW MOUNTAIN GUARDIAN PARTNERS II OFFSHORE, L.P.Private Equity Fund · Last reported Jun 1, 2026$0Gross asset value

Form D fundraising filings

New Mountain Guardian Partners II Offshore, L.P.

Fund administrator ALTER DOMUS CHICAGO, Illinois, United States Investor statements: No (provided to no investors) Related to adviser: No

Auditor DELOITTE & TOUCHE LLP GRAND CAYMAN, Cayman Islands

Custodian COMPUTERSHARE TRUST COMPANY, N.A MINNEAPOLIS, Minnesota, United States Related to adviser: No

Custodian U.S. BANK NATIONAL ASSOCIATION BOSTON, Massachusetts, United States Related to adviser: No

Provider details

Annual audit: Yes
Prime brokers: No
Custodians: Yes
Administrator other than the adviser: Yes
External marketing: No

DELOITTE & TOUCHE LLP
PCAOB 34

U.S. BANK NATIONAL ASSOCIATION
LEI 6BYL5QZYBDK8S7L73M02

Fund details & source

Fund ID: 805-4974118671
Reported beneficial owners: 21
Minimum commitment: $0
Form D file number: 021-283769

Form ADV 2110083 · Jun 1, 2026 · Schedule D 7.B.(1)

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.

Services & filing details

Most recent filing: Jun 1, 2026. View historical filings

Reported services

Investment company portfolio management · Pooled investment vehicle management

Compensation

Percentage of assets · Performance-based

Principal office

1633 BROADWAY, 48TH FLOOR
NEW YORK, NY, 10019, United States

CRD 155493

Filing source

Form ADV 2110083 · Jun 1, 2026 · Items 1 & 5

Official IAPD profile (latest public filing). Values are the most recently reported in our imported data; the public profile may show a newer filing.