Breakdown of bursary and scholarship options in South Africa in the Engineering, Geology, Teaching and Transport sectors!  
Engineering and Geology
Kantey & Templer are consulting engineers have bursary opportunities available for individuals pursuing a career as a Civil, Mechanical or Electrical Engineer.
Harmony (a leading gold mining setups) has a bursary scheme focused on education at a tertiary level.  
SASOL Have an entire website dedicated for their bursary options.

Columbus Stainless Steel provides a breakdown of their bursary opportunities in their careers section.
Eskom have put together a student platform which contains information about their student funding plans.
Mintek has a full breakdown of their bursary offering on their careers section of their website.
Anglo American Platinum Limited (AMPLATS) has bursary opportunities that is according to its website aimed to help individuals launch a career in the mining industry.

Gold Fields provides a contact platform to find out more about their bursary offering. 

Murray & Roberts provides details of their bursary plan for South Africans in the field of engineering.
Jones and Wagener offer bursaries in the Civil Engineering field.
Check out the Funza Lushaka bursary administered by the South African Department of Basic Education.

Transnet the freight transport company has a bursary scheme that is aligned with its respective sector.  

Air Traffic and Navigation Services (ATNS) has career specific bursary plans in place.