Company lists · Data refreshed September 2026

Top 23 Systems integration consultants based in London, United Kingdom

RevenueBase identified 370 company matches for systems integration consultants associated with London, United Kingdom as of September 2026 and tracks 3,583 professional contacts across them, including 1,262 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers company matches for systems integration consultants associated with London, United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 14, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 14, 2026 How this list was built
370Companies
3,583Contacts tracked
1,262Verified emails
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The 23 largest systems integration consultants based in London, United Kingdom

Ranked by team size
Top 23 of 370 company matches for systems integration consultants based in London, United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 14, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Sep 14, 2026501-1,000401 contacts →

Exact match

“We believe successful businesses are underpinned by quality IT infrastructure.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
2Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200193 contacts →

Exact match

“eAppSys is a systems integrator that is focused exclusively on supporting the core enterprise application systems within Oracle On-Premise and Cloud Applications.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-200120 contacts →

Exact match

“OpticoreIT is an IT Consultancy founded in 2013 to bridge a gap in the market between the major IT services providers and the consultancy market.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
4Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-20061 contacts →

Exact match

“We are the trusted IT integrator that specialises in making your work flow.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
5Exact matchLondon, United KingdomHQ recorded Sep 14, 2026n/a59 contacts →

Exact match

“A full service consultancy company specialising integrating Macintosh and Windows.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-20052 contacts →

Exact match

“Diegesis is a business technology and IT systems integration company that specialises in Decision Support Solutions.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
7Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-20047 contacts →

Exact match

“Pace Integration is a unique technology consultancy that solves your integration challenge – focused on enterprise systems integration strategy, architecture and design that is…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-20037 contacts →

Exact match

“We are systems integrators.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 14, 202611-5037 contacts →

Exact match

“R3 Digital is a Systems Integrator and Salesforce Platinum (Summit) Consulting Partner that specialises in Health and Life Sciences.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-20036 contacts →

Exact match

“Most businesses don't have a CRM problem.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 14, 202611-5035 contacts →

Exact match

“Here at ECS Systems we pride ourselves on providing the highest level of personalised service, to every client.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-20033 contacts →

Exact match

“At Tiberone, we specialize in solving corporate IT problems by designing, building, and supporting solutions that drive results.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
13Exact matchLondon, United KingdomHQ recorded Sep 14, 202611-5032 contacts →

Exact match

“MiX is an independent consultancy specialising in IT Infrastructure, Communication, Data Centre, Audio Visual, Physical Security & SMART Buildings Technology Solutions.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
14Exact matchLondon, United KingdomHQ recorded Sep 14, 202611-5032 contacts →

Exact match

“Master Systems Integrator OKTO Technologies is a leader in the design, development & installation of Smart Building Technology for- SuperPrime Residential - Luxury Hospitality -…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
15Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-20031 contacts →

Exact match

“Formed in 2008 PPA is a specialist Mission Critical Solutions consultancy delivering turnkey Data Centre solutions including Mechanical, Electrical, Public Health, ICT and…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
16Exact matchLondon, United KingdomHQ recorded Sep 14, 202611-5030 contacts →

Exact match

“We’re the team that the IT leaders of tech-dependant organisations come to when they need to really shake things up, innovate (effectively), and tackle their transformational…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
17Exact matchLondon, United KingdomHQ recorded Sep 14, 202611-5028 contacts →

Exact match

“Manifest Software Solutions (MSS) integrates anything with everything.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
18Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-20027 contacts →

Exact match

“AMAZING DIGITAL EXPERIENCES THAT WOW BY DESIGN Torpedo Factory Group is a Master Systems Integrator providing professional services for Intelligent Environments & Smart Buildings…”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
19Exact matchLondon, United KingdomHQ recorded Sep 14, 202611-5026 contacts →

Exact match

“BestPath provides next generation, easy to use IT solutions for businesses of all sizes, from FTSE 100 companies to start-ups.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
20Exact matchLondon, United KingdomHQ recorded Sep 14, 202611-5026 contacts →

Exact match

“Every business is unique in its setup, processes, and goals.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 14, 202611-5024 contacts →

Exact match

“Principle Networks works with commercial and regulated organisations to reduce cyber risk and cost by simplifying security and network architecture.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
22Exact matchLondon, United KingdomHQ recorded Sep 14, 202651-20022 contacts →

Exact match

“The Audio Visual Group is a leading AV systems designer and integrator.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase
23Exact matchLondon, United KingdomHQ recorded Sep 14, 202611-5021 contacts →

Exact match

“RnD Systems Integration is an IT consultancy based in, London.”

Recorded in the RevenueBase company graph · Sep 14, 2026 · View company records in RevenueBase

Showing 23 of 370 systems integration consultants based in London, United Kingdom

See the full list, filter by size, metro and specialty, and access 1,262 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Systems integration consultants based in London, United Kingdom at a glance

As of Sep 14, 2026
35.2%Verified-email coverage
9.7Average contacts per company
1-10Median size (employees)
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
219
11-50
102
51-200
42
201-500
1
501-1,000
2
1,001-5,000
2
10001+
1

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 370 companies.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with London, United Kingdom whose business descriptions match “systems integration consultants” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 1,262 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 14, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Systems integration consultants by metro in the United Kingdom

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “systems integration consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many systems integration consultants are there based in London, United Kingdom?

RevenueBase identified 370 company matches for systems integration consultants associated with London, United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Zenzero tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city in the United Kingdom has the most systems integration consultants?

London leads the United Kingdom with 370 company records, followed by Bristol (26) and Manchester (25).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 1,262 professional contacts with verified work emails tracked across these 370 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 14, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.