Firm profile

Kelso & Company, L.P.

NEW YORK, NYCRD 131471Registration Status: ApprovedEffective since March 30, 2012SEC # 801-73793Latest ADV April 30, 2026

Kelso & Company, L.P. is an SEC registered investment adviser organized as a limited partnership with a primary office location in New York, NY. Its latest Form ADV filing, dated April 30, 2026, reports $14.3B in regulatory assets under management, 64 employees, 1 office, and 54 accounts.

Assets Under Management
$14.3B
Employees
64
Offices
1 office
Total Clients
54

Associated firm names

1 name listed
  • KELSO & COMPANY, L.P.

Leadership

4 roles identified
CEOChristopher L. Collins
CEOFrank J. Loverro
CCOWilliam Woo

Advisory services offered

1 types reported
Portfolio management for pooled investment vehicles

Fee models offered

3 types reported
Asset based fees
Other fee arrangements
Performance-based fees

Offices & Contact

Primary office

NEW YORK, New York, United States

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Primary office regionOther reported regions

Shading shows states and countries with reported offices. Cities are listed below; shading does not indicate service coverage.

New York

NEW YORKPrimary office

1 office records listed · 1 total offices reported. Counts can use different reporting dates. SEC filers may list only their largest 25 additional offices.

Contact and digital presence

ADV profile links

Regulatory Assets Under Management Breakdown

Total regulatory assets under management$14.3Bas of April 30, 2026
Discretionary100.0%
$14.3B
100% of total RAUM100.0%
Non-discretionary0.0%
$0
0% of total RAUM0.0%
All regulatory assets under management are discretionary.

Client Coverage Demographics

Top client segmentPooled Investment Vehicles represent 100.0% of total clients.
Top client categories% of clientsClients
1
Pooled Investment Vehicles
100.0%
54

Assets under management Growth by Quarter

Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.

Total AUM$14.3B
Total Accounts54
10Y AUM Change+$4.8B (+50.7%)

Private Funds

Private funds reported by Kelso & Company, L.P.

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Employee Growth by Quarter

Quarterly points use the latest ADV filing or SEC roster snapshot available in each quarter.

Total Employees64
Clients per Employee1:1
10Y Employee Change+23 (+56.1%)

Historical AUM and employee figures reflect available SEC Form ADV filings under this CRD. Filing gaps may reflect registration status changes, dormant periods, state registration periods, firm restructuring, or other reporting changes. Rialytix does not interpolate missing periods.


Ownership

Reported direct and indirect ownership ranges

Each range applies to a separate reported relationship and should not be added together.

Reported ownership ranges

Highlighted bands show the percentage range reported in Form ADV.

0%25%50%75%100%
KELSO & COMPANIES, INC.Direct owner · Schedule AInterest in KELSO & COMPANY, L.P.
10% to < 25%
JAMES J CONNORSDirect owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
PHILIP EDWARD BERNEYDirect owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
FRANK JOHN LOVERRODirect owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
ANNA LYNN ALEXANDERDirect owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
FRANK KITCHELL BYNUMDirect owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
CHRISTOPHER LAWRENCE COLLINSDirect owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
HOWARD A. MATLINDirect owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
CHURCH MURDOCK MOOREDirect owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
STANLEY DE JONGH OSBORNEDirect owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
DAVID IRA WAHRHAFTIGDirect owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
ALEXIS HOLDING CORP.Direct owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
HENRY MANNIXDirect owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
STEPHEN C DUTTONDirect owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
MATTHEW EDGERTONDirect owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
ALEC JACQUES HUFNAGELDirect owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
WILLIAM WOODirect owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
DAVID LAWRENCE COHENDirect owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
MICHAEL P NICHOLSDirect owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
JOSEPH MARC KOPILAKDirect owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
KELSO & COMPANY, LLCDirect owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
WILLIAM CHARLES FRAYERDirect owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
FORREST B COMPTONDirect owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
Hugh Benedict McBrideDirect owner · Schedule AInterest in KELSO & COMPANY, L.P.
< 5%
MICHAEL BRUCE GOLDBERGIndirect owner · Schedule BInterest in ALEXIS HOLDING CORP.
75%+
FRANK TEMPLETON NICKELLIndirect owner · Schedule BInterest in KELSO & COMPANIES, INC.
25% to < 50%
THOMAS ROBERT WALLIndirect owner · Schedule BInterest in KELSO & COMPANIES, INC.
25% to < 50%
GEORGE EDWARD MATELICHIndirect owner · Schedule BInterest in KELSO & COMPANIES, INC.
25% to < 50%

Bars represent the reported range at that individual ownership step, not an estimated percentage of the advisory firm. Indirect relationships may refer to intermediate entities rather than directly to Kelso & Company, L.P..

Reported ownership and control details

Form ADV · Filing date 2026-04-30 · Schedules A and B

32 entries
#Owner / person & roleInterest in entityReported interestControl personTitle / status acquiredSource
1KELSO & COMPANIES, INC.LIMITED PARTNERDomestic entityKELSO & COMPANY, L.P.10% to less than 25%Code BYesLIMITED PARTNER03/2021Schedule APDF page 253
2JAMES J CONNORSLIMITED PARTNER AND MANAGING DIRECTORIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesLIMITED PARTNER AND MANAGING DIRECTOR12/2011Schedule APDF page 253
3PHILIP EDWARD BERNEYLIMITED PARTNER, MANAGING DIRECTOR AND CHAIRMANIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesLIMITED PARTNER, MANAGING DIRECTOR AND CHAIRMAN03/2023Schedule APDF page 253
4FRANK JOHN LOVERROLIMITED PARTNER AND MANAGING DIRECTOR AND CO-CHIEF EXECUTIVE OFFICERIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesLIMITED PARTNER AND MANAGING DIRECTOR AND CO-CHIEF EXECUTIVE OFFICER01/2016Schedule APDF page 253
5ANNA LYNN ALEXANDERLIMITED PARTNER AND MANAGING DIRECTORIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesLIMITED PARTNER AND MANAGING DIRECTOR01/2014Schedule APDF page 253
6FRANK KITCHELL BYNUMLIMITED PARTNER AND MANAGING DIRECTORIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesLIMITED PARTNER AND MANAGING DIRECTOR01/2014Schedule APDF page 253
7CHRISTOPHER LAWRENCE COLLINSLIMITED PARTNER AND MANAGING DIRECTOR AND CO-CHIEF EXECUTIVE OFFICERIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesLIMITED PARTNER AND MANAGING DIRECTOR AND CO-CHIEF EXECUTIVE OFFICER03/2023Schedule APDF page 253
8HOWARD A. MATLINLIMITED PARTNER AND MANAGING DIRECTORIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesLIMITED PARTNER AND MANAGING DIRECTOR01/2014Schedule APDF page 253
9CHURCH MURDOCK MOORELIMITED PARTNER AND MANAGING DIRECTORIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesLIMITED PARTNER AND MANAGING DIRECTOR01/2014Schedule APDF page 253
10STANLEY DE JONGH OSBORNELIMITED PARTNER AND MANAGING DIRECTORIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesLIMITED PARTNER AND MANAGING DIRECTOR01/2014Schedule APDF page 253
11DAVID IRA WAHRHAFTIGLIMITED PARTNER AND MANAGING DIRECTORIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesLIMITED PARTNER AND MANAGING DIRECTOR01/2014Schedule APDF page 253
12ALEXIS HOLDING CORP.LIMITED PARTNERDomestic entityKELSO & COMPANY, L.P.Less than 5%Code NAYesLIMITED PARTNER01/2014Schedule APDF page 253
13HENRY MANNIXLIMITED PARTNER AND MANAGING DIRECTORIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesLIMITED PARTNER AND MANAGING DIRECTOR01/2015Schedule APDF page 253
14FRANK TEMPLETON NICKELLMANAGING DIRECTORIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesMANAGING DIRECTOR03/2023Schedule APDF page 253
15GEORGE EDWARD MATELICHMANAGING DIRECTORIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesMANAGING DIRECTOR01/2014Schedule APDF page 254
16THOMAS ROBERT WALLMANAGING DIRECTORIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesMANAGING DIRECTOR01/2014Schedule APDF page 254
17MICHAEL B GOLDBERGMANAGING DIRECTORIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesMANAGING DIRECTOR01/2014Schedule APDF page 254
18STEPHEN C DUTTONLIMITED PARTNER AND MANAGING DIRECTORIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesLIMITED PARTNER AND MANAGING DIRECTOR03/2016Schedule APDF page 254
19MATTHEW EDGERTONLIMITED PARTNER AND MANAGING DIRECTORIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesLIMITED PARTNER AND MANAGING DIRECTOR03/2016Schedule APDF page 254
20ALEC JACQUES HUFNAGELLIMITED PARTNER AND MANAGING DIRECTORIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesLIMITED PARTNER AND MANAGING DIRECTOR01/2019Schedule APDF page 254
21WILLIAM WOOLIMITED PARTNER, MANAGING DIRECTOR, GENERAL COUNSEL AND CHIEF COMPLIANCE OFFICERIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesLIMITED PARTNER, MANAGING DIRECTOR, GENERAL COUNSEL AND CHIEF COMPLIANCE OFFICER05/2019Schedule APDF page 254
22DAVID LAWRENCE COHENLIMITED PARTNER AND MANAGING DIRECTORIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesLIMITED PARTNER AND MANAGING DIRECTOR05/2019Schedule APDF page 254
23MICHAEL P NICHOLSLIMITED PARTNER AND MANAGING DIRECTORIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesLIMITED PARTNER AND MANAGING DIRECTOR01/2020Schedule APDF page 254
24JOSEPH MARC KOPILAKLIMITED PARTNER, MANAGING DIRECTOR AND CHIEF FINANCIAL OFFICERIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesLIMITED PARTNER, MANAGING DIRECTOR AND CHIEF FINANCIAL OFFICER04/2021Schedule APDF page 254
25KELSO & COMPANY, LLCGENERAL PARTNERDomestic entityKELSO & COMPANY, L.P.Less than 5%Code NAYesGENERAL PARTNER03/2021Schedule APDF page 254
26WILLIAM CHARLES FRAYERLIMITED PARTNER AND MANAGING DIRECTORIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesLIMITED PARTNER AND MANAGING DIRECTOR01/2024Schedule APDF page 254
27FORREST B COMPTONLIMITED PARTNER AND MANAGING DIRECTORIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesLIMITED PARTNER AND MANAGING DIRECTOR03/2026Schedule APDF page 254
28Hugh Benedict McBrideLIMITED PARTNER AND MANAGING DIRECTORIndividualKELSO & COMPANY, L.P.Less than 5%Code NAYesLIMITED PARTNER AND MANAGING DIRECTOR03/2026Schedule APDF page 254
29FRANK TEMPLETON NICKELLSHAREHOLDERIndividualKELSO & COMPANIES, INC.25% to less than 50%Code CYesSHAREHOLDER03/1989Schedule BPDF page 254
30THOMAS ROBERT WALLSHAREHOLDERIndividualKELSO & COMPANIES, INC.25% to less than 50%Code CYesSHAREHOLDER01/2014Schedule BPDF page 254
31GEORGE EDWARD MATELICHSHAREHOLDERIndividualKELSO & COMPANIES, INC.25% to less than 50%Code CYesSHAREHOLDER01/2014Schedule BPDF page 254
32MICHAEL BRUCE GOLDBERGSHAREHOLDERIndividualALEXIS HOLDING CORP.75% or moreCode EYesSHAREHOLDER12/1992Schedule BPDF page 254

Less than 5% may include zero. Code F identifies a role without specifying a percentage. Reported interests may overlap and may not include every owner. Total indirect ownership is not calculated.

Compliance & Disclosures

Filing dated 4/30/2026 4:45:49 PM

Responses were selected by the RIA in its filing. Questions are shortened for readability; “you” refers to the reporting firm, and some questions also cover advisory affiliates.

RIA or supervised-person involvementThe RIA reported that none of the events below involve the firm or its supervised persons.RIA responseNo
AFelonies2 No

In the past ten years, have you or any advisory affiliate:

  • A1Been convicted of or pleaded guilty or no contest to a felony?No
  • A2Been charged with a felony?No
BMisdemeanors2 No

In the past ten years, have you or any advisory affiliate:

  • B1Been convicted of or pleaded guilty or no contest to a misdemeanor involving investments, an investment-related business, fraud, false statements or omissions, wrongful taking of property, bribery, perjury, forgery, counterfeiting, or extortion?No
  • B2Been charged with a misdemeanor of the kind listed above?No
CSEC or CFTC actions5 No

Has the SEC or CFTC ever:

  • C1Found you or an advisory affiliate made a false statement or omission?No
  • C2Found you or an advisory affiliate violated SEC or CFTC regulations or statutes?No
  • C3Found you or an advisory affiliate caused an investment-related business to have its authorization to do business denied, suspended, revoked, or restricted?No
  • C4Entered an order against you or an advisory affiliate in connection with investment-related activity?No
  • C5Imposed a civil money penalty on you or an advisory affiliate, or ordered you or an advisory affiliate to cease and desist from any activity?No
DOther regulatory actions5 No

Has any other federal regulatory agency, state regulatory agency, or foreign financial regulatory authority ever:

  • D1Found you or an advisory affiliate made a false statement or omission, or was dishonest, unfair, or unethical?No
  • D2Found you or an advisory affiliate violated investment-related regulations or statutes?No
  • D3Found you or an advisory affiliate caused an investment-related business to have its authorization to do business denied, suspended, revoked, or restricted?No
  • D4In the past ten years, entered an order against you or an advisory affiliate in connection with investment-related activity?No
  • D5Denied, suspended, or revoked your or an advisory affiliate’s registration or license, or otherwise prevented association with an investment-related business or restricted activities?No
ESelf-regulatory organization actions4 No

Has a self-regulatory organization or commodities exchange ever:

  • E1Found you or an advisory affiliate made a false statement or omission?No
  • E2Found you or an advisory affiliate violated its rules, other than a violation designated as a minor rule violation under an SEC-approved plan?No
  • E3Found you or an advisory affiliate caused an investment-related business to have its authorization to do business denied, suspended, revoked, or restricted?No
  • E4Disciplined you or an advisory affiliate by expulsion, suspension, barring association with other members, or otherwise restricting activities?No
FProfessional authorizations1 No
  • FHas an authorization to act as an attorney, accountant, or federal contractor granted to you or an advisory affiliate ever been revoked or suspended?No
GPending regulatory proceedings1 No
  • GAre you or any advisory affiliate now the subject of a regulatory proceeding that could result in a “Yes” answer to any part of C, D, or E?No
HCivil judicial actions and proceedings4 No

(1) Court actions

Has a domestic or foreign court:

  • H(1)(a)In the past ten years, enjoined you or an advisory affiliate in connection with investment-related activity?No
  • H(1)(b)Found that you or an advisory affiliate violated investment-related statutes or regulations?No
  • H(1)(c)Dismissed, pursuant to a settlement agreement, an investment-related civil action brought against you or an advisory affiliate by a state or foreign financial regulatory authority?No

(2) Pending civil proceedings

  • H(2)Are you or any advisory affiliate now the subject of a civil proceeding that could result in a “Yes” answer to any part of H(1)?No

* Metrics are based on the latest available data, including Form ADV filings, brochures, and relationship summaries pulled from the SEC IAPD, and may be subject to change. Learn what is included in the Rialytix data. Please refer to the firm's official disclosures for the most accurate information using their CRD number. This is not investment advice.