GLS Consulting (Pty) Ltd is a firm of consulting civil engineers specializing in the analysis, planning and management of water-related systems.

The company was formed in 1989 by the directors Dr LC Geustyn, Dr BF Loubser and Mr JJ Streicher. The current board of directors include the founders and Dr AN Sinske, Ms KF Fair and Mr JK Compion. The total staff comprises 40 people.

Based in Techno Park, Stellenbosch, GLS Consulting has established close working relationships with other specialists nationwide and internationally in order to provide a comprehensive and expert service.