Dharishan is the interim Chief Executive Officer of WACO Internationa. He was appointed the Chief Financial Officer for the Group in 2021. Since joining the Group in 2011 he has held a number of senior financial management positions including Corporate Financial Manager, Financial Manager and Group Accountant.
His expertise extends through financial accounting, taxation and corporate finance, with an aptitude for information technology, strategic development and execution.
Prior to joining Waco International Dharishan was with KPMG.
Effective 1 January 2025, Jason Ullbricht was appointed Group HR Executive, bringing with him over 25 years of human resources leadership experience across both local and international organisations. He joined the Group in October 2023 as Senior HR Manager for Waco Africa before stepping into his current role.
Throughout his career, Jason has held a number of senior leadership positions, including Vice President of Human Resources for Southern Africa at Schneider Electric, where he was later promoted to Vice President for Africa & the Caribbean and completed a country manager expat assignment in Zambia. He has also held HR leadership roles with Honeywell, Afrox Limited, and Life Healthcare.
Jason has built extensive experience working across diverse markets in Africa.
Robert is the managing director of Sanitech, a position he has held since 2009. Robert joined Sanitech in 2008 as Business Development director.
He was previously employed at Hilti South Africa (Proprietary) Limited where in his 14 years of service he held various executive sales and marketing positions.
After Waco’s acquisition of Sanitech, Robert was employed to transform the Sanitech brand to meet the Group’s standards.
Appointed as Managing Director of SkyJacks in December 2025 following more than two decades of leadership within the Waco Group. He began his career with LTA in civil engineering construction and then Form‑Scaff in 2004, advancing through technical, sales, and branch management roles before taking on regional and national leadership roles.
His career has given him deep expertise in access and suspended platforms, construction support services, and engineering compliance. Darryn is recognised for combining strategic foresight with hands‑on execution, driving operational transformation, financial discipline, and stakeholder trust across diverse projects and regions.
Gerhard is the Managing Director of Waco Modular. He was appointed to this position in October 2023 subsequent to forming part of the Waco Group for 9 years. Gerhard joined Sanitech in 2014 where he held the position of Director of Environmental Services. He was promoted to Regional Director for the Mining Region in 2019.
Prior to joining Waco in 2014, from 2009 to 2014, he was the Head: Experimental Facilities at Rand Water during which time he was a member of the Water Institute of South Africa. From 1989 to 2009, Gerhard was employed at Arcelor Mittal where he held several Managerial and Technical positions. During his time at Archelor Mittal, he specialised in Continuous Improvement and Process Optimisation in the Laboratory and Production environments.
Klaas became Managing Director of Form-Scaff in July 2021 after 27 years in the organization.
Initial roles included Branch Manager of Polokwane, Johannesburg and Durban and Regional Manager in the KZN and Inland areas. From 2005 onwards, his responsibility was that of Business Development, Product Development and Marketing.
The last 10 years was spent in Africa setting up successful green field businesses – 13 branches in 9 different African countries - for the organization.
Prior to Form-Scaff, he worked 4 years for Ninham Shand (Aurecon today) – a Civil Engineering Consulting Firm in Pretoria.
AListair is the Managing Director of SGB-Cape and a member of the Waco International Executive Management Board. With more than three decades of experience across construction, industrial services, and equipment rental, Alistair brings a practical, customer-focused leadership style grounded in deep industry knowledge. He joined the Waco International Group in 2006, serving as a Divisional Director at SGB-Cape until 2015, and subsequently as Managing Director of SkyJacks from 2015 to 2025. In December 2025, Alistair returned to SGB-Cape as Managing Director. A civil engineer by training, Alistair is passionate about building sustainable partnerships, fostering innovation, and empowering the teams who deliver for our customers every day.
Otto heads up Waco Engineering Services. He has more than 23 years’ experience in Civil Engineering, covering construction, temporary works design and management. He specializes in temporary works and structural design, as well as construction methodology and value engineering.
Otto is a registered Professional Engineer with the Engineering Council of South Africa and the Engineering Registration Board of Botswana. He is a registered Temporary Works Designer with the Institute for Work at Height’s Professional Body.
Otto has a B Eng Degree in Civil (Structural) Engineering and is a Member of the South African Institution of Civil Engineering.
He is on the Advisory Board of the University of Pretoria’s Department of Civil Engineering.