Lesley Barrie
Finance Director
Lesley brings more than 25 years of high-level financial experience to the venture studio and its growing portfolio of climate tech businesses.
Lesley Barrie is Finance Director at Ventex, bringing more than 25 years of high-level financial experience to the venture studio and its growing portfolio of climate tech businesses.
She plays a key role in ensuring financial discipline, compliance, and scalability across the organisation — supporting both studio operations and portfolio company performance.
Lesley has held senior finance roles across a range of industries, including energy, technology, and high-growth businesses. Her expertise spans budgeting and forecasting, financial controls, investor reporting, and corporate governance — making her an invaluable partner to both founders and executive teams navigating rapid scale.
At Ventex, Lesley works alongside CFO Rob Aitken to deliver financial strategies that enable ambitious, value-driven growth. Together, they ensure that each portfolio company has access to the tools, insights, and frameworks required to operate with confidence and clarity.


Steve Gray, Managing Partner
With a background in banking and subsea robotics, Steve brings a sharp commercial focus to identifying and scaling high-potential ventures.

Stuart McLeod, Managing Partner
Stuart is a tech disruptor who previously led oil and gas completions specialist Qedi thorough to its £33million acquisition by Amec plc.