Sigma-X distribute and support structural engineering finite element and geotechnical analysis and design software throughout the UK and Ireland. Sigma-X also have customers in Europe, Africa, The Middle East, America and South America.

At Sigma-X we make a strong commitment to our customers. We work to five principle values that guide us in everything we do - quality of service, create lifelong customers, deliver long-term investment value and make a positive difference.


Our mission is to ensure our customers get the best value from their investment in Sigma-X by providing them with a reliable and efficient software distribution and support service.


Dr James Lee BE MSc PhD MIStructE CEng

James received his bachelor’s degree in structural engineering from the National University of Galway, Ireland, an MSc in bridge engineering and a PhD in computational mechanics from the University of Surrey, England. James is a chartered member of the Institute of Structural Engineers with over twenty years’ structural engineering experience.

James's experience encompasses the analysis and design of bridges and structures and the distribution and support of advanced structural engineering analysis and design software.


Our customers include some of the companies, councils and universities listed below. Click on the logo to go to the customer's web site.