Transnet Freight Rail | 812,231 followers on LinkedIn. Transnet is the largest and most crucial part of the freight logistics chain that delivers goods within South Africa. | Transnet Freight Rail is the largest division of Transnet SOC Ltd. It is a world class heavy haul freight rail company that specialises in the transportation of freight. The company maintains an extensive rail network across South Africa that connects with other rail networks in the sub-Saharan region, with its rail infrastructure representing about 80% of Africa's total.