John Warner
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John Warner Email & Phone Number

Senior Partner at McKinsey & Company at McKinsey & Company
Location: Cleveland, Ohio, United States 3 work roles 2 schools
3 work emails found @mckinsey.com 1 phone found area 617 LinkedIn matched
✓ Verified May 2026 4 data sources Profile completeness 86%

Contact Signals · 3 work emails · 1 phone

Work email j****@mckinsey.com
Direct phone (617) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
McKinsey & Company
Role
Senior Partner at McKinsey & Company
Location
Cleveland, Ohio, United States
Company size
32269 employees

Who is John Warner? Overview

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Quick answer

John Warner is listed as Senior Partner at McKinsey & Company at McKinsey & Company, a company with 32269 employees, based in Cleveland, Ohio, United States. AeroLeads shows a work email signal at mckinsey.com, phone signal with area code 617, and a matched LinkedIn profile for John Warner.

John Warner previously worked as Senior Partner at Mckinsey & Company and Partner and Consultant at Mckinsey & Company. John Warner holds Master Of Business Administration - Mba from Harvard Business School.

Company email context

Email format at McKinsey & Company

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{first_initial}{last}@mckinsey.com
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Profile bio

About John Warner

I am a Senior Partner with McKinsey who leads our Global Energy & Materials Practice and Chemicals & Agriculture Practice. My client efforts focus on fundamentally improving the performance trajectory of leading-edge companies. Specific areas include: corporate strategy and finance, transformation marketing and sales, operations, organization efficiency effectiveness, and change management. I have a passion for Ohio and am Chairman of the Ohio Business Roundtable.

Current workplace

John Warner's current company

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McKinsey & Company
Mckinsey & Company
Senior Partner at McKinsey & Company
united states
Website
mckinsey.com
Employees
32269
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3 roles · 37 years

John Warner work experience

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Team & coworkers

Colleagues at McKinsey & Company

Other employees you can reach at mckinsey.com. View company contacts for 32269 employees →

BK Barbara Kotlarek Barbara Kotlarek Colleague at Mckinsey & Company Poznań, Wielkopolskie, Poland, Poland View → SD Sandi Delsignore Sandi Delsignore Colleague at Mckinsey & Company St Petersburg, Florida, United States, United States View → RK Rita Koktysheva Rita Koktysheva Colleague at Mckinsey & Company Lisbon, Lisbon, Portugal, Portugal View → JV Jacobo Valle Martínez-Sapiña Jacobo Valle Martínez-Sapiña Colleague at Mckinsey & Company London, England, United Kingdom, United Kingdom View → BM Bharat M. Bharat M. Colleague at Mckinsey & Company Atlanta, Georgia, United States, United States View → JM Juan Martín De La Espriella S. Juan Martín De La Espriella S. Colleague at Mckinsey & Company Contact Info, United States View → AW Alan Wang Alan Wang Colleague at Mckinsey & Company Los Angeles, California, United States, United States View → YG Yarelys Gutierrez Yarelys Gutierrez Colleague at Mckinsey & Company Panama City, Panamá, Panama, Panama View → VV Varma Varma Varma Varma Colleague at Mckinsey & Company Chennai, Tamil Nadu, India, India View → SB Sally Barboza Sally Barboza Colleague at Mckinsey & Company São Paulo, São Paulo, Brazil, Brazil View →
2 education records

John Warner education

FAQ

Frequently asked questions about John Warner

Quick answers generated from the profile data available on this page.

What company does John Warner work for?

John Warner works for McKinsey & Company.

What is John Warner's role at McKinsey & Company?

John Warner is listed as Senior Partner at McKinsey & Company at McKinsey & Company.

What is John Warner's email address?

AeroLeads has found 3 work email signals at @mckinsey.com for John Warner at McKinsey & Company.

What is John Warner's phone number?

AeroLeads has found 1 phone signal(s) with area code 617 for John Warner at McKinsey & Company.

Where is John Warner based?

John Warner is based in Cleveland, Ohio, United States while working with McKinsey & Company.

What companies has John Warner worked for?

John Warner has worked for Mckinsey & Company and General Electric (Ge).

Who are John Warner's colleagues at McKinsey & Company?

John Warner's colleagues at McKinsey & Company include Barbara Kotlarek, Sandi Delsignore, Rita Koktysheva, Jacobo Valle Martínez-Sapiña, and Bharat M..

How can I contact John Warner?

You can use AeroLeads to view verified contact signals for John Warner at McKinsey & Company, including work email, phone, and LinkedIn data when available.

What schools did John Warner attend?

John Warner holds Master Of Business Administration - Mba from Harvard Business School.

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