HHO is a South African-based civil engineering consultancy that designs and facilitates the implementation of civil engineering infrastructure projects.

Its first consulting engineering office was opened by John Hawkins in Johannesburg more than 90 years ago. John Hawkins was soon joined by Dryden Osborne and later his son, Robert Hawkins, to form Hawkins, Hawkins and Osborn (HHO).

Since the late 1920s, it has been contributing to the infrastructural development in both rural and urban regions of Southern Africa. Its considered approach means that we recognise the past and look towards a bright future where it can play a role in the betterment of South Africa.

At HHO, it believes that it can make a positive impact by addressing the injustices of the past, the inefficiencies in the existing infrastructure systems and the total lack of infrastructure in some communities. By focussing on these issues it hopes to stimulate economic growth, give communities access to opportunities and, therefore, a better quality of life.

It is proud of its South African heritage and ownership. It has always been a privately and wholly South African owned company. It runs an employee ownership scheme for the black employees, who for the past 30 years, have made up more than half of its staff compliment

Being a majority black-owned company, comprising 10% black female ownership, it has achieved B-BBEE Level 1 status and is committed to transformation, skills development, procurement from empowered suppliers and corporate social investment.

Apart from working hard to improve the lives of others, it also strives to create an atmosphere in which its own employees feel at home and get the opportunity to prosper. Almost 20% of its staff have been with the company for more than 20 years, while more than 40% have served HHO for 10 years or more. Such loyalty is a testament to an inclusive company culture that embraces diversity and equality whilst caring for its people.

Its three offices, in Johannesburg, Cape Town and East London, have maintained ISO 9001 certification since 2005. Its quality work, technical excellence and innovation have been acknowledged through the numerous SAICE, CESA, Fulton and SAPOA awards won. It has published many technical papers both nationally and internationally and have shared its expertise at conferences, symposia and tertiary education institutions.