About IES

IES is recognised as a world leader in 3D performance analysis software that is used to design tens of thousands of energy efficient buildings across the globe. Our technology is supported by integrated consulting services and today its capabilities are expanding from use on individual buildings to helping create sustainable cities.
Uncovering hidden cost, energy and carbon savings, our technology and consulting services support smarter energy-efficient choices across new building investments, building operation and refurbishment of existing buildings. We deliver unique tools and technology to assist regulatory and rating agencies, building owners, facilities managers, sustainability and energy managers, architects and engineers in their objectives.
We invest over ΒΌ of our turnover in R&D to ensure our analytical tools and industry knowledge stays the most pioneering and innovative.
Featured articles and news
Civil engineers and environmental methods of construction
Can the profession use its skills to save the world from climate change?
How faulty science resulted in sanitation reform.
Conserving the Hilda Besse Building
Improving facilities, accessibility and overall appearance.
BSRIA IAQ topic guide published
Free download of TG 12/2021 available.
Electrotechincal mentors wanted
TESP works with The Youth Group to form skill sharing network.
OpenBuilt supply chain technology in development
Big tech collaborates on platform for the built environment.
Concerns raised over Future Buildings Standard
Letter signed by 21 organisations sent to MHCLG.
The infrastructure planning process
A look at the Government's strategic approach.
Steps to help reduce the spread of infection inside buildings.
Urban exploration and construction
This social media-centred hobby can be both dangerous and illegal.
Millwork wall treatment with a long and illustrious history.
Weekly workplace noise estimator tool
HSE introduces cumulative exposure calculator.
The Edwardians and their houses.
Cut off from civilian life for over 900 years.
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