Cloud Computing Companies in Cardiff: 50 Active Firms (2026)

Cardiff has 50 actively trading cloud computing companies in this list, a compact local cohort by UK standards. Revenue scale is concentrated below the upper mid-market: 2 firms sit above the £5M mark, while 10 were incorporated since 2022. Reported headcount totals 28 employees among firms that disclose staff numbers. That makes the metropolitan market look weighted towards owner-managed specialists, implementation consultancies and small managed-service teams, rather than large infrastructure operators. The Cardiff location still matters commercially because suppliers can serve Welsh customers locally while taking on remote delivery work across the wider UK.

Cloud providers here operate in a market where obligations usually arrive through customer contracts rather than a sector licence. Business buyers tend to push requirements on security controls, backup practice, incident notification, data location and subcontractor access into procurement questionnaires and service terms. Workloads touching personal information bring UK privacy duties into scope, while regulated customers can pass through audit rights and resilience expectations from their own rulebooks. For Cardiff suppliers, that favours disciplined documentation and clear responsibility boundaries between the customer, the managed-service provider and any underlying infrastructure host. Partner selection and exit planning become part of the sales conversation, not just a technical afterthought.

Demand appears likely to favour providers that can combine migration work with day-to-day operations, rather than firms that only resell capacity. Smaller Cardiff specialists tend to compete on proximity, responsiveness and domain familiarity, but those traits can be difficult to defend when remote delivery makes wider UK competition routine. The cohort has been weighted towards early-commercial and owner-managed businesses, so consolidation may come through agency-style acquisitions, subcontracting networks or quiet exits rather than headline platform deals. Margin pressure is likely to keep attention on automation, security assurance and retained support, with customers asking for fewer hand-offs between architecture, implementation and monitoring.