Pretoria is the administrative capital. National departments, embassies and international organisations are based here, alongside the University of Pretoria, UNISA, the Tshwane University of Technology and research bodies such as the CSIR. Rosslyn and Silverton are home to large vehicle plants and the suppliers around them. That creates a big market of businesses whose customers are institutions.
Institutional buyers look for different things from consumers. They want the full registered name, the physical address, what the company is accredited or registered for, who they will deal with, and evidence of similar work. A supplier whose site is a single page with a cell number looks like a risk, even if the work is excellent.
The rest of the city buys like any suburb: families in Pretoria East and Centurion choosing a school, a dentist or a contractor, and students in Hatfield looking for food, accommodation or tutoring. Those visitors want prices, directions, opening hours and a way to book, on a phone, quickly.