Clients
New Mountain Finance Advisers serves 13 clients, 8 of them pooled investment vehicles. The average client has about $864 million with the firm.
- Business development companies5 clients82%
- Pooled investment vehicles8 clients18%
Show client breakdownHide client breakdown
| Client type | Clients | Regulatory AUM | Share | Avg. per client |
|---|---|---|---|---|
| Business development companies | 5 | $9,155,859,942 | 81.5% | $1.83B |
| Pooled investment vehicles | 8 | $2,072,385,169 | 18.5% | $259.0M |
| Total | 13 | $11,228,245,111 | 100% | $863.7M |
- Clients
- 5
- Regulatory AUM
- $9,155,859,942
- Share
- 81.5%
- Avg. per client
- $1.83B
- Clients
- 8
- Regulatory AUM
- $2,072,385,169
- Share
- 18.5%
- Avg. per client
- $259.0M
Total
- Clients
- 13
- Regulatory AUM
- $11,228,245,111
- Share
- 100%
- Avg. per client
- $863.7M
What it does
New Mountain Finance Advisers provides portfolio management for investment companies, portfolio management for pooled vehicles and other activities. It is paid through a percentage of assets and performance-based fees.
New Mountain Finance Advisers advises 7 private funds.
100.0% of assets ($11.23B across 13 accounts) are managed with discretion. 38% of clients are outside the U.S., and 0 clients received advice without assets under management last fiscal year.
Custodians
New Mountain Finance Advisers has custody of $1.92B for 8 clients.
- All other custodians$11.23B100%
Ownership and leadership
New Mountain Capital Group, L.P. owns 75% or more of New Mountain Finance Advisers, and John Kline is its CEO.
- Owns 75% or more of New Mountain Finance Advisers, L.L.C.
New Mountain Capital Group, L.P.
Control person · since October 2010
- Owns 75% or more of New Mountain Capital Group, L.P.
NM Partners Manager Holdings, L.P.
Control person · since October 2018
NM Holdings GP, L.L.C.
General partner · Control person · since October 2018
- Owns 50% to 75% of New Mountain Finance Advisers, L.L.C.
Steven Klinsky
Control person · since October 2010
Leadership
- John KlineManaging Director and Chief Executive Officer
- Adam WeinsteinManaging Director, President and Firm Chief Operating Officer
- Laura BoswergerManaging Director and Credit Chief Operating Officer, Chief Financial Officer
- Kellie SteeleDirector and Net Lease Chief Financial Officer
- Joseph HartswellManaging Director and Chief Compliance Officer
- Peter KaplanManaging Director and Portfolio Manager
- Steven KlinskyFounder
Staff
- 235 employees
- 45 in advisory functions
- 8 broker-dealer reps
Fees
New Mountain Finance Advisers is paid through a percentage of assets under management and performance-based fees.
New Mountain Finance Advisers’ fee rates are not included in this profile. Find its brochure on the SEC’s site.
Offices and registrations
Besides its headquarters, New Mountain Finance Advisers has 8 offices, with 3 listed addresses across 3 states.
California · 1 listed address
- 401 Wilshire Boulevard, Santa Monica
New York · 1 listed address
- 1633 Broadway, 48th Floor, New YorkHQ
South Carolina · 1 listed address
- 170 Meeting Street, Charleston
Registration details
- Legal name
- New Mountain Finance Advisers, L.L.C.
- Headquarters
- 1633 Broadway, 48th Floor, New York, NY 10019
- Phone
- 212-720-0300
- Website
- www.newmountainfinance.com
- SEC file
- 801-71948
- Structure
- Delaware LLC
- Fiscal year end
- December
This directory does not report disciplinary history, for any firm or individual, in either direction. The SEC publishes the complete record, including any disciplinary events, and it is the authoritative place to check one. See this firm's record on adviserinfo.sec.gov
Common questions
How many clients does New Mountain Finance Advisers have?
New Mountain Finance Advisers has 13 clients and manages $11.2 billion for them, as of June 2026. They include 8 pooled investment vehicles and 5 business development companies.
Source: Form ADV Part 1A, Items 5.D and 5.F, filed 1 June 2026
What services does New Mountain Finance Advisers offer?
New Mountain Finance Advisers provides portfolio management for investment companies, portfolio management for pooled vehicles and other activities.
Source: Form ADV Part 1A, Item 5.G, from the SEC's 2 October 2026 data file
How many financial advisors does New Mountain Finance Advisers have?
New Mountain Finance Advisers has 0 investment adviser representatives registered with state securities authorities, out of 235 employees, and 45 perform investment advisory functions. 8 are registered representatives of a broker-dealer and 0 are licensed insurance agents.
Source: Form ADV Part 1A, Items 5.A and 5.B, from the SEC's 2 October 2026 data file
Who owns New Mountain Finance Advisers?
New Mountain Finance Advisers’ direct owners are New Mountain Capital Group, L.P. (75% or more) and Steven Klinsky (50% to 75%).
Source: Form ADV Part 1A, Schedules A and B, filed 1 June 2026
How does New Mountain Finance Advisers get paid?
New Mountain Finance Advisers is paid through a percentage of assets under management and performance-based fees. Its Form ADV lists no commissions among how it is paid.
Source: Form ADV Part 1A, Item 5.E, from the SEC's 2 October 2026 data file