Meet our team

Dave Stuart is the founding member of Abacus Cost Consultants (Pty) Ltd and is currently a Director of this organization.

He is a qualified Quantity Surveyor having a National Higher Diploma from the University of Johannesburg, and is a corporate member of the Association of South African Quantity Surveyors as well as the Royal Institute of Construction Surveyors.

He is also a fellow of the Association of Arbitrators (Southern Africa), a fellow of the Botswana Institute of Arbitrators, a member of the Chartered Institute of Arbitrators and a member of the AFSA General Commercial Panel.

He has over 30 years’ experience in the measurement and valuation of work for engineering, mining and construction contracts.

He also have extensive experience in the preparation, quantification and adjudication of contractual claims.

He has been appointed to act as arbitrator, adjudicator, mediator and expert in various disputes.

In his spare time Dave enjoys playing squash and golf and enjoys game viewing and bird watching.

Kishan Ramjee is an accomplished Quantity Surveyor and Cost Engineer with a proven track record in the production of complex contracts and contract administration with over 20 years experience in Civil Engineering Construction, Building, Roads, Rails, Electrical and Mechanical Engineering and Infrastructure services.

He is a qualified Quantity Surveyor and has a diploma in Project Management. He is registered with the Association of Quantity Surveyors and an associate member of the Association of South Africa Arbitrators (A ARB). He also successfully completed the Construction Engineering Management Programme (CMP) at Stellenbosch University.

Kishan has worked with a number of forms of contracts including JBCC, GCC, FIDIC, COLTO and NEC. He has worked on projects country wide in various disciplines and his experience includes Africa, UAE and South Africa.

He enjoys outdoor activities, travelling and spending time and relaxing with his family.

Tim Msimanga is a qualified Quantity Surveyor with a Bachelor Degree in Quantity Surveying obtained in 1998 from Technikon Pretoria (now known as Tshwane University of Technology). He has a Diploma in Project Management obtained in 2002 with Damelin Education Group in association with University of Cambridge. In 2017, he obtained a certificate in Construction Engineering Management Programme (CMP) at the Stellenbosch University. He affiliates with professional association bodies as a member of the Association of South African Quantity Surveyors (MAQS) and an associate member of the Association of Arbitrators South Africa (A ARB).

Tim has over 20 years’ experience in construction industry as a Quantity Surveyor in the following sectors Civil Engineering Construction, Building, Roads, and Infrastructure services mainly Southern African countries and England. During this period, he has worked with a number of forms of contracts including COLTO, FIDIC, GCC, ICE Conditions of Contract (UK), JBCC, and NEC.

In his spare time, he spends time with his family and friends, jogging, hiking and playing golf.

Vuyokazi Johnson is a result driven, self-motivated and resourceful Quantity Surveyor working as part of effective team managing all the costs relating to building and civil engineering projects, rails, electrical and mechanical, roads and infrastructure with over 15 years’ experience.

She is also registered with the Association of Quantity Surveyors and an associate member of the Association of South Africa Arbitrators (A ARB).

She has a proven track record of minimizing the costs of a project and enhancing value for money, while still achieving the required standards and quality. Possessing excellent foresight & the ability to plan ahead when working on construction projects. Can communicate effectively with contractors/clients & would be an asset to any project.

Vuyokazi Johnson has worked with a number of forms of contracts including JBCC, FIDIC, COLTO and NEC. She has worked on projects country wide in various disciplines and his experience includes Africa, England and South Africa.

When not at work, Vuyo enjoys volunteering at her local Church, spending time with her family & friends and travelling.

Alec Pieterse obtained his B-Tech (Quantity Surveying) degree from Pretoria Technikon in 1999. He has been actively involved in all aspects of quantity surveying over the past 20 years. He is also registered with the Association of Quantity Surveyors.

He has extensive experience in quantity surveying services and contract administration services in Civil Engineering and Building contracts and has worked with a number of forms of contracts including JBCC, FIDIC, COLTO, GCC and NEC. He has been involved with major construction contracts both locally and internationally.

In his spare time Alec is a keen bonsai enthusiast.

Ivan Andrin is a qualified Quantity Surveyor holding a Baccalaureus Technologiae Degree from the Technikon Pretoria. He is a member of the Association of South African Quantity Surveyors.

He successfully completed the Certificate in Arbitration course administered under the auspices of the Association of Arbitrators (Southern Africa) and an associate member of the Association of Arbitrators.

He has over 16 years’ experience in the measurement and valuation of work for engineering, mining and construction contracts and also has extensive experience in the preparation and quantification of variations and contractual claims on the African continent and the Middle East.

Ivan is the author of several statements of claim, defences and replies for dispute processes and has acted as an expert witness in various construction disputes.

Ivan enjoys spending time with family and friends and supporting his children at the sports field. He enjoys holidays at the coast and hunting during winter.

Werner Joubert has over 16 years’ experience in the Civil Engineering Construction industry and has worked on a variety of projects ranging from Petro Chemical and Steel plants to Buildings, Civils and Infrastructure.

Werner holds a Baccalaureus Technologia degree in Engineering: Civil and a Certificate in Arbitration at the Association of Arbitrators South Africa, where he is also registered as an associate member (AArb).

He has worked on a number of forms of contract such as JBCC, FIDIC, COLTO and NEC which involved projects both in neighbouring African countries as well as locally (nationwide), where he held the position of a Senior Quantity Surveyor. He has also been involved in numerous legal and arbitration matters where he acted as a Costing analyst.

Hobbies include 4x4, camping and fishing.

Christa Devenish joined Abacus Construction Cost Consultants in March 2003. She provides a variety of services to our business with bookkeeping and payroll skills, as well as running the administration department.

Prior to coming to Abacus Construction Christa spend over 10 years as a personal assistant to various Construction Companies like WBHO and Bakwena Platinum Joint Venture. With a total of over 15 years in the bookkeeping industry she brings real life work experiences to the small business owner.

Christa is an honest, reliable go-getter. She is used to working on her own at a phenomenal pace. She believes in getting the job done to the best of her ability and is very proud of her work. She enjoys any work that gives her a challenge. In her spare time, she enjoys travelling and spending time with family and friends.