Virtual Environment

Improve the performance of any building

Leading integrated suite for accurate whole building performance simulation

Used by sustainable design experts around the globe, the Virtual Environment (VE) is an in-depth suite of integrated analysis tools for the design and retrofit of buildings. The platform leverages a world-leading simulation engine to allow cross-team collaboration between architects, engineers and contractors, from concept design to operation. Embedding energy and performance analysis into the heart of the design process, and across the entire building lifecycle.

Energy Modelling & Compliance

Tools for fast, accurate, sub-hourly, thermal building simulation of any size or complexity.

Building & Systems Design

Quick and easy loads calculations and equipment sizing from the earliest stages of design.

Modelling & BIM Interoperability

Interoperate with BIM platforms for two-way information exchange and quick digital design.


Explore VE capabilities and choose from multiple integrated applications designed to meet any of your project requirements.

BIM Interoperability

IES offers unrivalled interoperability with other CAD design and analysis tools. The smooth and robust two-way information exchange between VE and BIM platforms speeds up the design process and facilitates digital design. 


Some examples of using the VE

Explore how leading innovators like you are harnessing the power of the VE with our interconnected ICL platform



"Using IESVE for the last year and a half on a daily basis, the technology has become an integral part of all our assessments for all frameworks and projects related to the public sector. It has been essential to proving the many benefits of key strategies like mechanical ventilation with heat recovery, hot water heat recovery, generating BRUKL reports, calculating PV generation, assessing the risk of overheating and more.  

Additionally, IESVE enables us to support the wider group effort with energy assessments. Recently we assisted Mace Construct with the bid for a package of school refurbishments where we were able to accurately assess the percentage carbon and energy reduction for multiple energy measures including fabric improvements and changing heating strategy.

Of great benefit is also the integration between Revit, IESVE and OneClick LCA, which means we can now use IESVE to streamline embodied carbon calculations as part of the work for our Net Zero Carbon working group. "

Mace Group

VE for Students & Educators

IES offer a range of discounted software and training packages to educational institutions that use our software in their teaching. Students can also buy a student version of the VE for just €60!

Find out more

Some useful resources for VE

Live Online Training

Live, lecture style courses will take you through the VE at a basic level. 

Technical Information

Take a technical tour and get FAQ answers in the Knowledge Base. 

Free Getting Started Course

New to the VE and need help learning the basics? Enrol in our course for free. 

On-Demand Training

Discover our range of free on-demand courses from our Upskill with IES series.

Request a Quote

Tell us what you want to achieve and we'll build you a bespoke quotation.