Better Building Performance Begins Here

With software solutions rooted firmly in building physics, we empower designers, engineers, building owners and operators to deliver more efficient, comfortable and sustainable buildings through design, retrofit and operation.

Virtual Environment (VE)

IES Live

30 Years+

Building Analysis Experience

1.5M+

Buildings Improved Using IES Technology

75,000+

Projects per Year Using IES Technology

18,000+

Software Users

Our Solutions

Virtual Environment

Leading integrated suite for accurate whole building performance simulation

Learn More

Key Capabilities:

All-in-One Platform for All Skill Levels
Trusted by Architects & Engineers
Global Compliance, Local Expertise
Fast, Visual HVAC & Energy Modelling
BIM & CAD Interoperability

IES Live

Next generation building decarbonisation and operational energy management

Learn More

Key Capabilities:

Powered by Physics, Managed by Experts
Investment Ready Plans
Track Net-Zero Project Impacts
Cut Energy Costs, Reduce Complaints
Benchmark Real vs. Optimal Performance

Consulting Services

Proven advanced simulation expertise for high performance design, retrofit, and operation

Learn More

Key Capabilities:

Global Leaders in Sustainable Design
World’s Largest Building Analytics Team
Trusted for Robust, Proven Results
Expert IESVE Modelling for Net-Zero Goals
Driving Innovation Across the Whole Lifecycle

All Products

All Services

Trusted by Leading Organisations

Meet the Front-Runners in the Race to Zero Energy Buildings

The transition to energy efficient, low carbon buildings isn’t just a goal – it’s a challenge our industry is tackling every single day. Meet the front-runners who are using IES technology to shape the future of sustainable building design and operation, pushing the boundaries of simulation to deliver the high performing buildings of the future.

Learn More

Digital Twins for the Built Environment

Digital Twins present exciting opportunities to navigate the route to zero-carbon, sustainable and healthier communities. They respond and behave like their real world counterparts, function as problem-solvers and translate data into essential decision support information to improve performance and reduce risk.

Learn More

Impact You Can Measure

Our customers are achieving significant, measurable improvements with IES technology. Explore real projects where energy costs drop, carbon emissions shrink, and performance improves.

View Case Studies