Business Fibre in South Africa — Providers Compared (2026)

FNO vs ISP — who does what

The Fibre Network Operator (FNO) owns the physical fibre in the ground and in your building — Openserve, Vumatel Business, MetroFibre, Frogfoot, Octotel, Link Africa, Dark Fibre Africa, Comsol. The Internet Service Provider (ISP) buys wholesale capacity from the FNO and sells you the internet service — the router, the static IP, the support desk, the SLA credits. You choose one FNO (dictated by what's available at your address) and one ISP (freely chosen from the several selling on that FNO).

The major SA business FNOs compared

Openserve (Telkom). Widest national business footprint, especially outside metros. Business Fibre Premium tiers offer 99.5% uptime SLA. Install times average 6–10 weeks; existing Telkom copper buildings often faster.
Vumatel Business. Strong in Gauteng and Western Cape metros. Business Prime products offer symmetrical speeds up to 1 Gbps with 4-hour fault response. Widely resold — most SA business ISPs sit on Vumatel.
MetroFibre Networx. Excellent Gauteng and Tshwane coverage. Symmetrical, uncapped, business SLAs on their MetroBiz product. Competitive pricing at 200/200 and 500/500 Mbps.
Frogfoot. Vodacom-owned; strong Western Cape and growing national footprint. Business tiers include static IP and SLA. Good in mixed-use business parks.
Octotel. Western Cape specialist — dense in Cape Town CBD, Southern Suburbs and Atlantic Seaboard. Business Pro product with SLA and static IPs.
Link Africa. Business-district focused (Sandton, Rosebank, CBDs). Dedicated fibre products (not shared) — pricier but excellent for headquarters or trading environments.
Dark Fibre Africa (DFA) & Comsol. Wholesale/enterprise; typically accessed via your ISP for higher-tier point-to-point or dedicated internet access (DIA) requirements above 1 Gbps.

SLA language that actually matters

Uptime %. 99.5% = ~44 hrs downtime/year allowed. 99.9% = ~9 hrs. Choose based on how much downtime your business can absorb.
Time to fix (MTTR). 4 hours is business-grade, 8 hours is entry-level, "best effort" means nothing. Get it in writing.
Service credits. Missed SLA should produce automatic pro-rata credits — never require you to claim. If the ISP can't automate credits, they're not measuring their own performance.
Static IPs. Business products include at least one static public IP. If you run VPN, VoIP, camera systems or on-prem servers, insist on it.
Support hours. Business-grade is 24/7 phone and ticket. If P1 support is only office hours, it's a home product with a business bill.

Sizing your line honestly

10 Mbps per user for a cloud-first office (M365, Teams calls, cloud POS, cloud accounting).
Add 50% growth headroom — you don't want to upsize in year 2.
Add 100% for VoIP/video-heavy teams — call centres, media production, engineering.
10 users → 100/100 Mbps. 20 users → 200/200. 50 users → 500/500. 100+ → 1 Gbps or aggregated.
Symmetrical is non-negotiable for business — you upload as much as you download in Teams, backups and cloud sync.

Installation reality

Building already lit. 2–4 weeks. Fibre is in the riser; a splice and CPE swap is all that's needed.
Building not lit but on-net street. 6–8 weeks. Wayleave, ducting into the building, splicing to riser.
Off-net. 10–16+ weeks or "special quote" territory — civil works, road-opening permits, sometimes a build cost contribution.
Never trust a 5-day promise unless the ISP can produce written confirmation the building is capped and there's spare fibre in the riser.

Before you sign — the checklist

Coverage check at your actual physical address (not the street).
Two ISP quotes on the same FNO, same speed, same SLA — apples to apples.
Written SLA with uptime %, MTTR and automatic credits.
Static IP included; VoIP/CCTV/VPN compatible.
Contract term (24 or 36 months is normal; escape clause for building unavailability).
Migration/porting plan if you're leaving another provider — never let contracts overlap by less than 30 days.
Failover plan — LTE or 5G backup on a separate provider for any business that can't afford a 4-hour outage.

Frequently asked questions

What's the difference between home fibre and business fibre?

Business fibre is symmetrical (same up and down), has a service-level agreement (usually 99.5–99.9% uptime with credits), guaranteed bandwidth (not 'up to'), fixed public IP and 4–8 hour fault response. Home fibre is contended, best-effort, and priced accordingly. If your business runs on it, you need the business product.

Which fibre network operator (FNO) is best?

It depends on your address. Openserve has the widest business footprint; Vumatel Business is strong in Gauteng and Western Cape; MetroFibre covers Gauteng and Tshwane well; Frogfoot and Octotel are strong in Western Cape; Link Africa focuses on business districts. Check coverage at your address first, then compare ISPs on the winning network.

Why does the ISP matter if the FNO owns the fibre?

The FNO owns the pipe, but your ISP owns the experience — support, static IP, upstream peering, DDoS mitigation, business VoIP quality. A cheap ISP on a great FNO still gives you a bad experience. Choose the ISP as carefully as the FNO.

How long does business fibre installation take in SA?

8–12 weeks is realistic for a new install requiring civils. 2–4 weeks if the building is already lit (existing fibre in the riser). Never believe 'installed in 5 days' unless you can confirm the building has capped fibre already.

What speed does an SA business actually need?

Rule of thumb: 10 Mbps per employee for cloud-first businesses (M365, Teams, cloud POS). A 20-person office is comfortable on 200/200 Mbps. Add 50% headroom for growth and video meetings. Above 50 users, look at 500 Mbps–1 Gbps.