14 providers · United Kingdom

Network and Infrastructure Services Providers in United Kingdom

The network and infrastructure services market in United Kingdom serves the country's financial services and public sector sectors as well as the broader enterprise IT estate concentrated in London. Network and infrastructure service providers design, deploy and operate enterprise networks including SD-WAN, SASE, data centre fabric, campus networking and the underlying compute and storage estate. Major engagements often combine network transformation with cybersecurity and cloud architecture. TechVendorIndex tracks 14 providers actively delivering network and infrastructure services engagements in United Kingdom, drawn from global systems integrators, regional champions and specialist boutiques.

About network and infrastructure services in United Kingdom

Network design, implementation and management. Buyers in United Kingdom typically engage providers in this category to support transformation work tied to financial services and public sector priorities, with delivery shaped by local obligations under UK GDPR, the Data Protection Act 2018, FCA SYSC 13, the NCSC Cyber Assessment Framework and PRA outsourcing rules.

Top network and infrastructure services providers in United Kingdom

The 14 firms below are ranked by verified delivery presence in United Kingdom, with focus and rating drawn from TechVendorIndex verified reviews. No vendor pays for placement.

Provider
Focus in Network and Infrastructure Services
Rating
Reviews
Accenture UK
HQ: London · Banking, public sector, cloud
Network design, SASE and managed operations
4.2
2,480 reviews
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Deloitte UK
HQ: London · ERP, risk advisory, cyber
Network design, SASE and managed operations
4.3
1,980 reviews
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Capgemini UK
HQ: London · Public sector, SAP, engineering
Network design, SASE and managed operations
4.0
1,640 reviews
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PwC UK
HQ: London · Cyber, cloud, data advisory
Network design, SASE and managed operations
4.1
1,420 reviews
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KPMG UK
HQ: London · Tech-enabled audit and advisory
Network design, SASE and managed operations
4.0
1,280 reviews
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Kainos
HQ: Belfast · Workday and digital services
Network design, SASE and managed operations
4.4
720 reviews
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Endava
HQ: London · Engineering and platform delivery
Network design, SASE and managed operations
4.3
940 reviews
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Softcat
HQ: Marlow · Reseller and managed services
Network design, SASE and managed operations
4.1
680 reviews
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Computacenter
HQ: Hatfield · Infrastructure and managed services
Network design, SASE and managed operations
4.0
1,120 reviews
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BJSS (CGI)
HQ: Leeds · Custom software and data
Network design, SASE and managed operations
4.3
540 reviews
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Cognizant UK
HQ: London · Application services, BFSI
Network design, SASE and managed operations
3.9
980 reviews
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TCS UK
HQ: London · BFSI, retail, application services
Network design, SASE and managed operations
4.0
1,240 reviews
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Infosys UK
HQ: London · BFSI, SAP, Oracle
Network design, SASE and managed operations
4.0
880 reviews
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Version 1
HQ: London / Dublin · Oracle, AWS, public sector
Network design, SASE and managed operations
4.4
620 reviews
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Network and Infrastructure Services market overview in United Kingdom

Within the broader GBP 82 billion enterprise IT services market in United Kingdom, network and infrastructure services is one of the more active disciplines, growing roughly in line with the 4.8% headline expansion of the wider services market. Demand is concentrated in London and Manchester, where the largest financial services and public sector buyers maintain dedicated programme teams. Procurement decisions are shaped by the fact that United Kingdom is Europe's largest IT services market, with the City of London accounting for a disproportionate share of spend on regulated workloads, RegTech and post-Brexit data flows. SASE adoption has reshaped network procurement in United Kingdom, with buyers consolidating SD-WAN, secure web gateway and zero-trust network access onto single vendor platforms. Private 5G and edge networking remain pilot-stage for most financial services buyers. Mid-market buyers in United Kingdom increasingly favour specialist firms with deep domain expertise over generalist consultancies, while the largest programmes continue to be awarded to the multinational integrators with global delivery models and embedded financial services practices.

How to select a network and infrastructure services provider in United Kingdom

Use the following criteria to shortlist providers before issuing a formal request for proposal. Most procurement teams in United Kingdom weight references and operating-model fit more heavily than headline rate cards.

Typical engagement model

Network transformation engagements run 9 to 18 months on fixed-fee staged delivery. SASE rollouts typically have an annual subscription component layered on top of one-off design and migration fees. Managed network services contracts run three to five years on per-site or per-bandwidth pricing.

Pricing should always be benchmarked against at least three references in United Kingdom at comparable scope. Engage independent advisory support before signing multi-year contracts above USD 5M annual contract value.

Related categories and regions

Compare the network and infrastructure services market in United Kingdom with other service lines in the same country, or with network and infrastructure services in other markets covered by TechVendorIndex.

Frequently asked questions

Is SD-WAN still relevant in United Kingdom?
SD-WAN is now a component of broader SASE platforms rather than a standalone purchase. Buyers in United Kingdom typically procure SASE with SD-WAN, SWG, CASB and ZTNA integrated, rather than negotiating SD-WAN separately.
How do we assess a network provider in United Kingdom?
Validate reference customers at comparable scale, review the NOC's actual operational metrics under NDA, and confirm certifications are operational rather than aspirational. Always include a vendor-neutral design review.
What does a managed network service cost in United Kingdom?
Pricing in United Kingdom is typically per site per month, with bandwidth tiers and premium support uplifts. Mid-market enterprises with 50 to 200 sites typically spend USD 1M to USD 5M annually.
Should we manage networking in-house in United Kingdom?
Hybrid models are dominant: in-house architecture and policy, managed-service operations and incident response. Pure in-house networking is now rare outside highly regulated financial services environments.
Last updated: May 2026
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