IT Services and Support Agencies in London, England

5 IT Services and Support agencies are listed in London, England. 5 have been assessed on the Agency List Score as of October 2026; the highest-ranked is KT.Team at 97.8.

Ranked · 4 of 5 assessed

Ordered by Agency List Score
#1 of 5 assessed
KT.Team
98

Develops IT solutions and ESB integrations for business scalability

Backup and Disaster RecoveryEndpoint and Device ManagementHelp Desk and Support
#2 of 5 assessed
Core Technology Systems
73

Managed IT, cloud and security support across public and private sectors

Managed IT ServicesMicrosoft 365 Administration
#3 of 5 assessed
TMB
72

Empowers businesses with Pegasus software and managed IT services

Backup and Disaster RecoveryEndpoint and Device ManagementHelp Desk and Support
#4 of 5 assessed
Allied Worldwide
70

SEO and PPC services for inbound lead capture and search visibility

Managed IT Services

Also in London · 1 not ranked here

0 have not yet been assessed on the Agency List Score. Alphabetical.

About this ranking

What this page ranks

This page ranks 4 of the 5 assessed IT Services and Support agencies in London, England — the ones carrying a published score — out of 5 listed.

The score measures how well an agency documents its own work in public — named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than described as the client's own results. It does not measure client satisfaction, price, or availability.

Cohorts and awards

Agencies are compared within a cohort — here, IT Services and Support in London, England. A cohort must be large enough to express the band being awarded: at least 8 assessed agencies for a top 25% award, 20 for top 10%, 40 for top 5%, and 300 for top 1%. This one holds 5, so no award can be issued here.

One more was assessed and no published evidence of its work was found, so no score is shown for it.

Read the full methodology

Paid placement

Partner agencies can buy a labelled placement block above the ranking on this page. It is always marked as paid and is never mixed into the ranked list.

Placement is paid; it does not affect the ranking, cohort membership, or any agency's score. Ranking position, cohort membership and the score itself are not for sale.

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Questions

How many IT Services and Support agencies are in London, England?
5 are listed on Agency List in London, England. 5 of them have been assessed on the Agency List Score as of October 2026, and 4 of those carry a published score.
Which IT Services and Support agency in London, England is ranked highest?
KT.Team, with an Agency List Score of 97.8, ranks #1 of 5 assessed agencies in IT Services and Support in London, England.
Why are 1 IT Services and Support agencies listed here but not ranked?
0 of the 5 listed have not yet been assessed on the Agency List Score. One more was assessed and no published evidence of its work was found, so no score is shown for it. They each have a profile and are listed below the ranking, alphabetically, rather than being hidden or mixed into it.
How is the ranking determined?
By Agency List Score, within the IT Services and Support in London, England cohort of 5 assessed agencies. The score is computed from evidence published on each agency's own website: named clients, quantified outcomes, and whether the outcome is attributed to the agency. Paid placement does not affect it.