• HQ Call: +27 (0)12 660 1616
  • Email: info@gast.co.za
  • GAST Liberty Park 96, Achilles Str. Zwavelpoort, Pretoria, South Africa


Dr. Kevin Gast


Chairman of the Board

Dr. Gast has been at the forefront on various technological breakthroughs in various industries from plastic polymers to pharmaceutical compounds, serving on numerous boards in South Africa and international entities. Dr. Gast holds various doctorates in engineering and construction and one of the leading authorities in Waterproofing worldwide. Dr. Gast is also a highly successful entrepreneur, philanthropist and humanitarian. Dr. Gast  served under the Bi-Commission of Al Gore, numerous committee chairmanships for various SABS codes and the past president of the Waterproofing Federation of South Africa and the African Waterproofing Institute. Dr. Gast regularly also provides various consulting services to the United Nations and the World Bank.


Mr. Kevin Gast


Managing Director

Mr. Kevin Gast is a highly motivated executive who has demonstrated the ability to lead diverse teams of professionals to new levels of success in a variety of highly competitive industries, cutting-edge markets, and fast-paced environments. Strong technical and business skills with an impressive track record of more than 15 years of hands-on experience in strategic planning, business unit development, project and product management, and system engineering strategies. Proven ability to successfully analyse an organization's critical business requirements, identify deficiencies and potential opportunities, and develop innovative cost-effective solutions for enhancing competitiveness, increasing revenues, and improving customer service offerings. Mr. Gast holds various board positions of entities operating in South Africa from the hospitality industry to pharmaceuticals being renowned for his ability to turn around any business and maximize profitability. Mr. Gast is also an astute marketing strategist and branding specialist.

Mrs. Elizabeth Gast



After completing and obtaining her degree in Architecture Mrs. Gast joined GAST as a Sales Executive in 1989. Due to her dedication & acute sales bravado she was promoted to Sales Manager (Africa) not long thereafter. Mrs. Gast keen eye for detail and sales knowhow, coupled with her 10 years’ experience in the sales field, she was appointed a Director of GAST in 1997. Elizabeth continues to serve on the Board of Directors of GAST, providing in-depth knowledge and foresight for GAST sales. Mrs. Gast also serves on various other Board of Directors of various different entities in South Africa, this includes her active position as Managing Director for the award winning 5 Star Zwahili Private Game Lodge in Limpopo.



Mrs. Zanliette Gast

Administration Executive

After beginning her journey with GAST in early 2007 as a Human Resource assistant, Zanliette has worked her way up within the company to the Executive post that she holds today. Having completed her LLM & LLB degrees at North West University she took up her first occupation at a well-known and respected labour brokerage and consultation firm in Pretoria. Her strong legal skills and ethical approach and background to all areas and aspects of her work have allowed her to develop and grow to being a key member of the GAST management team, implementing strong divisional ethics and policies as well as procedures for GAST. Mrs. Gast oversees all Human Resource elements, Communication and Administration of GAST.

Ms. Marna Du Plessis

Human Resources Manager

Marna joined the GAST team in early 2014, with experience in Industrial Relations and Human Resource Management. Ms. Du Plessis through her vast experience provides career path planning, staff guidance and day to day management of the immense GAST staff compliment. Marna has exceptional communication skills which enables her to motivate and manage each individual staff member from inception throughout their career path.

Mrs. Mariet Bester

Finance Manager

Mariet has been with the organization for 17 years and started her humble beginnings with GAST as a junior bookkeeper whereby through her dedication and constant strive of learning has been building up her financial knowledge throughout the years. Mrs. Bester is a true figures devotee and has a passion for detail. As a highly motivated and positive individual she is able to gage all levels of communication from employee to clients and suppliers and boasts a strong leadership and management style.

Mr. Shaun Language

Sales Manager

As a core member of GAST for more than 11 years, Mr. Language initially started with GAST as a Site Agent in the Construction Division of GAST many years ago. Shaun as in his nature showed exceptionally dedication and various skill sets that contributed to him being in various positions within GAST as part of his career path within the organization. Mr. Language has been involved with Sales, Operations & Quality Control over the last few years with GAST. Shaun shows a true knack for problem solving and without falter will always go the extra mile for any client. His natural pedigree has seen him take charge as Sales Manager from 2014.