John Campbell in

John Campbell

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

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.

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Experience
6 Years
Current Role
Interim CEO and Senior Strategic Advisor (with 3i Private Equity)
Job Level
Leadership
Location
United Kingdom
Personality Overview

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Communication Style
Decision Approach
Work Preference

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Priorities

Topics John cares 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.
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Career

Work history

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

Media appearances

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Education
2008 - 2008
Certificate in Executive Leadership
Cornell University
2005 - 2006
Diploma in Company Direction
Institute of Directors (IoD)
Social presence
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Behavioral profile

DISC profile (public)

DISC behavioral profile

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