Our Management Team

David Locker
Chief Executive Officer
David’s journey through the tech industry and professional services spans various continents and fully equips him with the diverse skill set required to lead a global business. Having previously managed companies across the UK, Europe and North America, he has a nuanced understanding of different market and cultures and offers a unique perspective on worldwide business operations and strategies. This experience allows him to successfully navigate the complexities of international business while continually bringing fresh ideas and approaches to the table.

Mark Warren
Chief Financial Officer
Mark joins the Board at Plowman Craven as Chief Financial Officer, bringing extensive experience in profitably growing professional services, engineering and foodservice businesses. His career includes roles as a consultant with Deloitte, Head of Performance at Crossrail, and project engineer with Taylor Woodrow, alongside advising start-up Boards. As CFO, Mark oversees core business functions, drives improvement initiatives, and collaborates with the management team on growth strategy, transformation delivery, and performance management.

Hugh Costello
Director
With over fifteen years’ experience of investing into UK SMEs, Hugh joins the Board at Plowman Craven having invested in, and sat on the boards of, companies across a variety of sectors including manufacturing, automotive, consumer, hospitality and leisure, and medical technology.

John Butterworth
Agathos Management LLP
With extensive experience in growth capital investments in the UK, John joins the Board at Plowman Craven bringing a diverse range of sector experience including software, advertising, consultancy, infrastructure, e-commerce, tech-led industrials and automation, supporting market leading companies.

Adrian Ringrose
Non-Executive Chairman
Adrian is a strategic adviser and plural chairman in the infrastructure and services sectors. He joins the Plowman Craven Board as Non-executive Chairman and, as the former CEO of Interserve, he brings significant experience and expertise to the team. He currently holds a pro-bono position as Chairman at The Prince's Trust Built Environment Leadership Group, where he has served since March 2017.

Tom Ventris
Business Development Director
Tom is the Business Development Director at Plowman Craven. With a focus on both traditional services and emerging technologies, Tom plays a key role in shaping our company’s strategic direction. Committed to leveraging cutting-edge GeoTech solutions, his focus is on strengthening existing partnerships, onboarding new clients, and reinforcing Plowman Craven’s position as a global leader in integrated measurement and geospatial services.

Jim Gregory
Managing Director - Asset Management Division
Jim combines expertise in technology, geospatial, engineering, and operations to deliver data-driven insights for infrastructure and property owners. He helps clients unlock asset value through advanced geospatial techniques and digital solutions that enable smarter planning, cost reduction, sustainability, and progress toward net zero. By transforming complex estates into clear intelligence, Jim empowers confident visualisation, monitoring, and management. His leadership reinforces our role as the trusted geospatial partner of choice, while fostering a workplace where innovation thrives, teams feel empowered, and every individual makes a real impact.

Lucy Rowsell
Managing Director - Digital Construction Division
Lucy has joined Plowman Craven’s Executive Leadership Team as head of our Digital Construction Division, covering rail, utilities, and property projects. Her division harnesses Building Information Modelling (BIM), 3D scanning, and digital twin technologies to help clients plan, design, and manage construction or refurbishment projects with greater accuracy and efficiency. With extensive experience in digital construction and project delivery, Lucy combines technical expertise with a collaborative approach, ensuring clients achieve better outcomes, reduce risks, and optimise resources across the built environment.

James Arnott
Commercial Director - Inspection Division
With a foundation in traditional surveying and a career spanning geospatial data, inspection, and remote sensing, James leads our Inspection Division across complex infrastructure and industrial environments. He specialises in drone operations, thermal imaging, confined space assessment, and integrated asset modelling. James is known for challenging conventional methods, building strong client relationships, and driving innovation across the industry. By combining technical depth with practical delivery, he helps clients reduce risk, improve performance, and extend asset life with confidence.

Nick de Rossi
Managing Director - Smart Monitoring Division
Nick leads our Smart Monitoring Division which delivers innovative solutions for continuous infrastructure management. His team integrates sensors, real-time data analytics, and cloud platforms to monitor asset health, enabling proactive maintenance and enhanced performance. With extensive experience in technology, data-driven solutions, and operational leadership, Nick is known for his collaborative approach and strategic vision, ensuring Smart Monitoring solutions are reliable, efficient, and future-ready, helping clients protect, optimise, and maximise the value of their critical infrastructure.

Mark Howells
Managing Director (Australia)
Mark is Managing Director of our Australian business, bringing deep familiarity with Plowman Craven's operations from his years as an Account Director and Director in the UK business. After emigrating to Australia in 2021, Mark now leads our drive growth within the Australian market and will leverage his extensive industry knowledge and experience to position our business for continued success.

Rupee Dhoot
People & Culture Director
Rupee is instrumental in shaping Plowman Craven’s values, behaviours, and ways of working. She partners with the Executive Leadership Team to manage and develop a diverse workforce across India, Poland, Australia, North America, and the UK, ensuring alignment with strategic goals. Her leadership spans change management, performance, professional development, talent acquisition, training, and wellbeing, including mental health within ESG initiatives. A trusted advisor, she role-models transparency, collaboration, and accountability while driving Plowman Craven’s evolution into an inclusive, modern, values-led organisation positioned for sustainable growth.

Nigel Appleton
Finance Director
Nigel joined Plowman Craven in 2015 having worked as a Finance Director for a number of SME companies and now oversees financial strategy, operational efficiency and financial reporting across the business. With extensive experience in high growth companies, he drives sustainable growth through robust financial planning, performance analysis and effective resource allocation. He partners with the Executive Leadership Team to deliver insights that shape strategic decisions and enhance client value. Nigel is passionate about building resilient finance teams, fostering innovation and ensuring the company’s long-term financial strength and stability.