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Internex Consulting

Consulting Services


Human Capital Services


Benchmarking Services

Ngena DesignSpace 

Automated and Computer Aided Design


Asset Management Services





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More about our executives



Hans Gühring


Hans obtained a B.Eng (Mechanical) degree from the University of Stellenbosch in 1985. In the initial five years of his career he focused on mechanical engineering consulting, specializing in lifting and cooling systems. He joined Armscor and Denel to further his career in systems engineering, where he became the Chief Systems Engineer on the Rooikat Armoured Car system. This was followed by managing the Denel Systems Engineering House "Gennan", which was responsible for the development and production of all land based military systems for the SA Defence Force. In the time at Denel, Hans obtained an Executive Leadership qualification from UNISA's School of Business Leadership. Leaving Denel after nine years, he started Internex Engineering and Management Consultants (Pty) Ltd, where his focus was - and still is - primarily on business enhancement and continuous improvement. Hans holds the position of Managing Director at Internex (Pty) Ltd as well as Chairperson of the Internex Group, which will celebrate its 15th birthday soon. Hans possesses a security clearance grading of "Secret" to contact Hans


André de Witt


André received a National Technical Diploma (Mechanical) from the Pretoria-West Technical College, and a Certificate in Logistics Management from the University of Pretoria's Graduate School of Management. André consults widely to the Defence Community of South Africa, mainly at Armscor's Weapon Systems Division and Programme Management level. Major corporate clients include Denel, BAE Land Systems OMC, Thales Advance Engineering, ThoroughTech and Armscor - to name but a few. He has received three commendations and achievement awards from the Chief of the SANDF and Defence Secretariat for his contribution to Logistics and Systems Engineering on military projects. He is a Director of Internex Engineering and Management Consultants (Pty) Ltd since 1997 and most recently became a Director of PeopleSpace (Pty) Ltd. He mainly focuses on Multidisciplinary Logistics Programmes and Product Systems Management (inclusive of Military Operations and Support Optimization and/or Improvement), and assists with the Defence Acquisitioning and Procurement of required Mission Equipment and/or capabilities for the SANDF on a regular basis. André is an accredited member of the Society of Logistic Engineers (SOLE) and possesses a security clearance grading of "Top Sectret". to contact André

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Ig du Plessis


Ig obtained a B.Eng. (Industrial) degree from the University of Stellenbosch in 1983. During his first year of military service he was trained as a Workshop Commanding Officer and in his second year was appointed as Staff Officer: SANDF: Policies and Specification Practices. In 1985 he joined the Department of Development Planning to co-ordinate development and administers financing of infrastructure at industrial development centres, and also conducted feasibility studies to define the influence of industrial development, deregulation and capital investments on regional development in the RSA. Ig has been consulting in business development and performance improvement of the bottom line performance of service and manufacturing organizations since 1988, including 5 years at Denel. He joined Internex Engineering and Management Consultants (Pty) Ltd in 1997. Ig is currently a Director of Internex (Pty) Ltd as well as Ngena DesignSpace (Pty) Ltd. Ig possesses a security clearance grading of "Secret". to contact Ig

Mÿk Lembisch


Mÿk has a Diploma in Aeronautical Engineering, a B Admin (Hons.) degree and has extensive logistics and project management experience in the Defence industry regarding aircraft, armoured vehicles and telecommunication systems. He also has been exposed to the information technology sector in project managing the implementation of several major applications (i.e. Livelink, Archibus, Microsoft SharePoint, etc) in a leading telecommunications company (Vodacom). Mÿk also consulted du Telecommunications in Dubai, UAE and the Qatar Foundation in Doha, Qatar on facility related applications.

Mÿk is currently the managing director of Ngena Design Space, a virtual mechanical engineering and CAD design company which has major customers in the engineering industry such as BAE Systems, BHP Billiton, Denel Land Systems, Vertex, Southern Medical and SHIL (a Scotland based company). Mÿk possesses a security clearance grading of “Secret”. to contact Mÿk

Richard Joubert


Richard received a National Technical Diploma (Mechanical) from the Centurion Technical College, and a Diploma in Information Technology from the University of South Africa. After serving 13 years within the South African National Defence Force he joint the Denel Group where he specialised himself in the Logistics environment. Focusing mostly on military projects his experience included field support for various Products Systems, Project Management and Logistic Engineering and Management. He jointed the Internex Group of companies in 2005 and consults widely with the Defence Community of South Africa on various Weapon Systems. He also holds the position of Executive Manager of Thoto Asset Assessment Services, a division within Internex. Richard possesses a security clearance grading of "Secret". to contact Richard.

Tandeka Honono


Tandeka has a Diploma in Travel & Tourism which she obtained from the Varsity College in 2010 and is currently studying Human Resource Management at the University of South Africa.. She currently holds the position of Personnel Manager at PeopleSpace (Pty) Ltd and as such is responsible for all human capital management aspects for all the Internex Group Companies. She started off her career as receptionist and campaign co-ordinator at Isilumko StudentWise before joining Thoto Asset Management Services as data capturer and assessment co-ordinator. During her employment at Thoto she concentrated on distributing of documentation (questionnaires), capturing of data on an internet based database as well as configuration management of questionnaires and relevant supporting documentation submitted by participating companies. In 2011 Tandeka joined PeopleSpace as a Junior Recruitment and Marketing / Admin Consultant and during her employment; she has broadened her professional scope to include the field of human resource management, recruitment consulting and placements of resources at various high profile companies. Her current role within the Internex Group spans the field of human capital management, data capturing, assessment co-ordinator, configuration management of personnel records, data records and questionnaires, resource recruitment and interviewing and document management. Click here to contact Tandeka.

Charmelle Moodley


Charmelle started off her career at the Textile Sales Industry before joining the Internex Group of Companies as receptionist. She subsequently obtained several certificates in Occupational Health and Safety from Dekra Industrial and currently holds the position of Empowerment Manager of the Internex Group of Companies, focusing on the compliance with the requirements of the Broad Based Black Economic Empowerment (BBBEE) Act (Act 53 of 2003) and the Codes of Good Practice gazetted on the 09th of February 2007 by the Department of Trade and Industry (DTI). In addition, she is also a Personal Assistant (PA) to the Group's Executive Committee (Exco) and is responsible for arranging and scheduling of domestic as well as international flights, the booking of accommodation and car hiring / travelling arrangements and the planning / co-ordinating of social events regarding the Group's requirements. Charmelle furthermore attend to incoming calls and visitors and telephonic enquiries concerning the Internex Group Companies. Click here to contact Charmelle.