Market
Johannesburg: 25 data centres, 12 operators, 519 MW live
There are 25 data centres in Johannesburg, South Africa, spanning 2 sub-markets, 12 operators, 23 operational, 519 MW live (11% modelled), 551 MW total potential. Teraco alone accounts for 7 sites, ahead of Digital Realty.
Map of 21 data centres in Johannesburg
Every Johannesburg site DC Atlas tracks with a position on record, coloured by status.
Johannesburg is one scope of the whole corpus. See every facility DC Atlas tracks on the global data center map.
Live
519MW
11% modelled
Under construction
20MW
Planned
0MW
Total potential
551MW
Who supplies the power
52% of the data centres we track in the Johannesburg market have a named power supplier
- City Power Johannesburg11sites
- ESKOM1site
- Municipality of Ekurhuleni1site
Who is building in Johannesburg
The 10 largest operators here by total potential, of 12 tracked in this market.
| Operator | Sites | Live | Total potential |
|---|---|---|---|
| Teraco | 7 | 195 MW | 208 MW |
| Digital Realty | 3 | 114 MW | 114 MW |
| Vantage Data Centers | 2 | 80 MW | 100 MW |
| Africa Data Centres | 2 | 40 MW | 40 MW |
| Digital Parks Africa | 1 | 24 MW | 24 MW |
| NTT Global Data Centers | 2 | 15 MW | 15 MW |
| Microsoft | 1 | 12 MW | 12 MW |
| Open Access Data Centers | 1 | 12 MW | 12 MW |
| Kyndryl | 1 | 12 MW | 12 MW |
| Internet Solutions | 3 | 10 MW | 10 MW |
When Johannesburg was built
448 MW of the live capacity here carries a commissioning date — 78% of the operational sites in this market.
Recent activity
11 recorded developments in the Johannesburg market, the latest on 12 Aug 2026.
Equinix announces Johannesburg data centre expansion to 24MW
Equinix announced it is scaling its Johannesburg 1 data centre facility to 24MW capacity to meet growing demand for cloud and AI infrastructure. The facility, located in Germiston near Johannesburg, has completed its first 4MW phase and will add two further 10MW phases. The expansion is driven by rapid adoption of AI and emerging technologies among South African enterprises, with the facility designed to support power-intensive AI workloads and liquid-cooling infrastructure.
Africa Data Centres designated Microsoft Azure ExpressRoute Metro peering location in Johannesburg
Africa Data Centres has been designated as a Microsoft Azure ExpressRoute Metro peering location in Johannesburg, South Africa. This designation strengthens cloud connectivity and resilience across Africa by enabling direct, private connections between Microsoft Azure and the data center. The peering location enhances network performance and redundancy for cloud services in the region. This partnership supports Africa's digital infrastructure development and enterprise cloud adoption.
Germiston Equinix 001 — announced
today announced plans to enter the South African market with a US$160 million data center investment in Johannesburg that augments its current footprint on the African continent in Nigeria , Ghana and Côte d'Ivoire. The new data center is expected to open mid-2024.
Johannesburg Digital Realty 001 — changed ownership
on August 1, 2022, we completed our acquisition of a majority interest in Teraco, the largest and most densely interconnected data center platform in South Africa
Kempton Park Digital Realty 002 ownership change
Kempton Park Digital Realty 002 changed ownership on 1 August 2022, when Digital Realty completed acquisition of a 61.1% indirect controlling interest in Teraco Data Environments (Pty) Ltd.
Kempton Park Digital Realty 003 — changed ownership
on August 1, 2022, we completed our acquisition of a majority interest in Teraco, the largest and most densely interconnected data center platform in South Africa
Kempton Park Zenlayer 001 commissioned
Zenlayer's presence at this facility was registered on PeeringDB on 19 November 2020 — a presence-registration date, not a commissioning date.
Kempton Park Zenlayer 002 commissioned
Zenlayer's presence at this facility was registered on PeeringDB on 19 November 2020 — a presence-registration date, not a commissioning date.
Questions about Johannesburg
- How many data centres are in Johannesburg?
- There are 25 data centres in Johannesburg, South Africa, spanning 2 sub-markets, 12 operators, 23 operational, 519 MW live (11% modelled), 551 MW total potential. Teraco alone accounts for 7 sites, ahead of Digital Realty.
- How much data centre capacity does Johannesburg have?
- DC Atlas tracks 25 data centres in the Johannesburg data centre market. 519 MW is live, 20 MW is under construction, for 551 MW of total potential at full buildout.
- Who are the largest data centre operators in Johannesburg?
- 12 operators run facilities in the Johannesburg data centre market. Teraco is the largest by total potential, with 7 sites and 208 MW.
- Which utilities supply power to data centres in Johannesburg?
- City Power Johannesburg, ESKOM and Municipality of Ekurhuleni serve the most data centre sites in the Johannesburg data centre market. DC Atlas holds a named power supplier for 52% of the facilities it tracks here.
Every data centre we track in Johannesburg
22 of 25 with a published page