About IES

Leading global innovator of sustainable analysis technology

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IES is a global climate tech company delivering innovative technology solutions and consultancy services to decarbonise the built environment. Over the last 30 years, we have built a solid reputation as the leading global innovator in integrated performance-based analysis and we're now home to the largest building physics analytics team in the world.

Supporting resource-efficient, healthy and cost-effective built-environments, we simulate and analyse data to give those involved in the design, retrofit and operation of buildings the information needed to make smarter, more sustainable decisions with confidence.
Our unique software and technology is supported by expert consultancy. And our dedicated R&D department ensures our analytical tools and industry knowledge stays pioneering and innovative.

Our Mission

Better Buildings: Smarter Cities

We believe that every building of every city in the world can be decarbonised. Our purpose is developing the technology to make that happen. Our ultimate aim is to create a built environment that is resource and energy efficient. Eliminating global reliance on fossil fuels while promoting comfort, health and wellbeing, and fairer access to energy for every citizen in the world.

Our Values

Meet our Directors

Don McLean

Founder and Managing Director (CEO)

Craig Wheatley

Chief Commercial Officer

David McEwan

Consultancy Director, Global

Susan Falconer

Chief Marketing Officer

Scott Finlayson

Chief Financial Officer

Ruth Kerrigan

Chief Operating Officer

Rohan Rawte

Director Asia and Middle East

Lorna Celnik

HR Director

Richard Fletcher

Chief Revenue Officer


IES is widely regarded as a world leader in intelligent sustainability solutions for the built environment. As such, we are fully committed to carrying out all reasonably practicable measures to continually improve our own environmental performance and reduce the impact of our operations.

World Leaders

Operating in more than 13 countries around the world, across Europe, North America, Asia, Middle East, and Australia, our specialists work with a growing network of partners and associates to deliver truly valuable expertise in building analytics.

Our Locations

Work with us

Interested in joining our team? Visit our Careers pages to browse our current opportunities.