John Campbell

Energizer
DISC Type : I

Interim CEO and Senior Strategic Advisor (with 3i Private Equity) at SRL Traffic Systems

United Kingdom

Overview

John Campbell is a transformational leader with extensive experience as a CEO and Chairman for private equity-backed companies. A Chartered Director with an MBA and an engineering degree, he specializes in driving growth and delivering stakeholder value in the technology, engineering, and energy sectors.

He is a passionate advocate for the circular economy and using technology to drive decarbonisation and support ESG commitments.

Personality Overview

Relationship Oriented

Believer

Enthusiastic

They excel at seeing the bigger picture, and the long-term impact of their decisions.  They are naturally enthusiastic, so take their promise with a pinch of salt. They are people oriented, friendly and like creating new connections.

Topics They Care About

Private Equity Growth
His career is defined by leading and advising portfolio companies for top private equity firms, focusing on significant growth and transformation.
Sustainable Technology
He serves as Chairman for companies like TXO and Powerstar, which are dedicated to the circular economy and decarbonisation through technology.
Customer Obsessiveness
His professional headline emphasizes his focus as a transformational leader who drives "customer obsessiveness" to deliver exceptional value.

Media Appearances

John has no verified media appearances

Work History

10-2025
Interim CEO and Senior Strategic Advisor (with 3i Private Equity) at SRL Traffic Systems
8-2025
Executive Chairman and Senior Strategic Advisor (with Towerbrook Private Equity) at TXO
4-2025 - 8-2025
Executive Chairman and NED (with SCF Private Equity) at Powerstar
9-2022 - 4-2025
Group Chief Executive Officer (with Inflexion Private Equity) at British Engineering Services
4-2019 - 9-2022
UK and Ireland Group MD (with TDR Capital Private Equity and Brookfield Private Equity) at Algeco UK

Education

2008 - 2008
Certificate in Executive Leadership from Cornell University
2005 - 2006
Diploma in Company Direction from Institute of Directors (IoD)

More Information

Social Presence :

Prographics :

Exp : 6 Location : United Kingdom Job Level : Leadership Designation : Interim CEO and Senior Strategic Advisor (with 3i Private Equity) at SRL Traffic Systems
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Insights For Selling To John

During A Call Or A Meeting

DO's

  • Share some stories about how you you have helped people in similar positions succeed
  • Be friendly and entertaining in your conversation
  • Do some small talk, ask them how things are going on their side

DONT's

  • Don’t be excessively objective, be a storyteller
  • Don’t assume a yes just because they have not said no
  • Avoid cutting into their flow

When Cold Calling

When Writing An Email

While Negotiating & Closing

    The secret to closing fast with John is

  • Relationship and trust can be vital with them, sometimes more than anything else.
  • Will you ever get a clear answer from John

  • They are unlikely to say no directly, you have to make that decision yourself.

Insights For Deal Planning

    How fast (or slow) will John move?

  • They are not the fastest decision makers, their friendly approach can give false positive signals.
  • Can John take some risk or not?

  • They may take certain risks that they deem unlikely of personal repercussions.

You And John

Personality Compatibility


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