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GLS Software develops and maintains software for engineering infrastructure analysis, design and management purposes, in the fields of water, sanitation, storm water and electrical network engineering.

The business was established in 1989 and has since earned the reputation of providing high quality products and excellent support to clients consisting of municipalities, utilities, consultants and academic institutions of various sizes.

The three original products of the company are Wadiso which is a comprehensive water distribution system analysis and optimization tool, Sewsan for the analysis and planning of sewer systems, and Albion, which is the CAD system that Wadiso and Sewsan run on.

GLS Software strives to remain at the forefront of software sophistication in their field. Through regular upgrades and a high quality support service clients can be served efficiently.

Recently added products include Swift, which is a software package that performs statistical analyses of consumption data in municipal billing databases; Edisan for the analysis and planning of electical networks; HydroSWMM for the analysis and design of storm water systems; PRP for the analysis and design of optimal infrastructure replacement strategies and Norwato, a tool to optimize the scheduling of projects to reduce non-revenue water.

Software Installation Base

All of the GLS Software products are market leaders in Southern Africa in their respective fields with some or all of the products applied in cities, such as Tshwane (Pretoria) (650 000 stands), Ekurhuleni (Gauteng) (600 000 stands), Cape Town (650 000 stands), Johannesburg (800 000 stands) and Windhoek (100 000 stands).
In addition, districts such as Metsweding (120 000 stands), Sedibeng and more than 50 other municipalities, including almost all of the municipalities of the Western Cape Province are using GLS Software directly or indirectly.
The Wadiso and Swift products have also been applied in the Greater Vernon District and West Vancouver in British Columbia, Canada.

Directors of GLS Software

Dr Erik Loubser (Managing)
Dr Leon Geustyn
Hanré Streicher

Senior Executives of GLS Software

Dr Alex Sinske (CTO)
Mrs Kerry Fair
Cobus Compion

GLS Software (Pty) Ltd joins EOH

GLS is pleased to announce that as of 16 October 2013, the business operations of GLS (GLS Consulting (Pty) Ltd and GLS Software (Pty) Ltd) have been transferred into the EOH Group of Companies.

EOH is a Johannesburg Stock Exchange listed IT company and a large provider of enterprise applications, technology, outsourcing, cloud and managed services. EOH is a “proudly South African” company active in South Africa, Africa and the United Kingdom. EOH has a strong Black Economic Empowerment profile and is a Level 1 BEE contributor. More official information regarding EOH can be found on the website

This decision will allow us to combine EOH’s great reach and reputation with GLS’s recognised industry solutions and thus maximise our strengths and our comprehensive offerings in the Water and Sanitation environment. It is however important to note that the existing management team of GLS will continue to be the driving force behind our product and service offering.

This merger supports our continued commitment to staying at the top of changing markets and we wish to thank you for your constant support and look forward to continuing to be your preferred partner in the Water and Sanitation sector.

During 2018, GLS Software (Pty) Ltd has been resolved as a company, and now forms a department within GLS Consulting (Pty) Ltd.

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