Company lists · Data refreshed September 2026

Top 24 Business systems integration consultants based in London, United Kingdom

Name: Business systems integration consultants based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 1,370 companies tracked

RevenueBase identified 1,370 business systems integration consultants headquartered in London, United Kingdom as of September 2026 and tracks 17,010 professional contacts across them, including 6,151 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers business systems integration consultants headquartered in London, United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 28, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

1,370Companies

17,010Contacts tracked

6,151Verified emails

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The 24 largest business systems integration consultants based in London, United Kingdom

Ranked by team size

Top 24 of 1,370 business systems integration consultants based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to business systems integration consultants: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	K2 Partnering Solutions	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	1,417 contacts →
	Indirect evidence “K2 Partnering Solutions is a global provider of unique end-to-end consultative solutions in the enterprise applications, AI, and cloud space.” Source: RevenueBase Database · checked Sep 28, 2026
2	Sandhata Technologies	Strong evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	363 contacts →
	Strong evidence “We are a global niche consultancy specialising in services that span all facets of Digital transformation, DevOps, and System Integration.” Source: RevenueBase Database · checked Sep 28, 2026
3	Kovaion Consulting	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	353 contacts →
	Indirect evidence “Kovaion is a global AI-powered solutions and innovation company focused on Oracle technologies, enterprise applications, intelligent automation, and digital transformation.” Source: RevenueBase Database · checked Sep 28, 2026
4	Emergn	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	501-1,000	351 contacts →
	Partial evidence “Emergn is a global technology and management consultancy built on a simple conviction: the only sustainable competitive advantage is the way you work.” Source: RevenueBase Database · checked Sep 28, 2026
5	Ubique Systems	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	501-1,000	333 contacts →
	Partial evidence “Ubique Systems is a fast growing multifaceted organization which offers a comprehensive array of outsourcing and consulting services for its customers, including recruitment…” Source: RevenueBase Database · checked Sep 28, 2026
6	ARCH	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	n/a	307 contacts →
	Indirect evidence “Arch has specialised in SAP solutions for over 25 years and our team has extensive experience of SAP technologies and SAP usability.” Source: RevenueBase Database · checked Sep 28, 2026
7	Acuiti Labs	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	306 contacts →
	Indirect evidence “Modern revenue growth is powered by intelligent, scalable Quote-to-Cash strategies.” Source: RevenueBase Database · checked Sep 28, 2026
8	OLR	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	292 contacts →
	Partial evidence “OLR is a specialist Oracle Retail systems integrator delivering end-to-end omnichannel solutions to enable leading retailers to accelerate business success through system…” Source: RevenueBase Database · checked Sep 28, 2026
9	Elixirr	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	501-1,000	275 contacts →
	Indirect evidence “An award-winning global consulting firm working with clients across a diverse range of markets, industries and geographies.” Source: RevenueBase Database · checked Sep 28, 2026
10	Percipere	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	245 contacts →
	Partial evidence “Percipere is a niche global consultancy, partnering companies in their evolution towards greater operational efficiency and profitability.” Source: RevenueBase Database · checked Sep 28, 2026
11	Cloudrock	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	211 contacts →
	Indirect evidence “We specialise in digital transformation, with deep expertise across Advisory, Delivery, Optimisation, Apps and AI.” Source: RevenueBase Database · checked Sep 28, 2026
12	Eappsys	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	193 contacts →
	Partial evidence “eAppSys is a systems integrator that is focused exclusively on supporting the core enterprise application systems within Oracle On-Premise and Cloud Applications.” Source: RevenueBase Database · checked Sep 28, 2026
13	Absolutelabs	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	192 contacts →
	Indirect evidence “AbsoluteLabs is a Salesforce Summit Partner and partner of Microsoft Azure, Amazon Web Services, and Google Cloud Platform.” Source: RevenueBase Database · checked Sep 28, 2026
14	Maintel Azzurri Communications	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	501-1,000	186 contacts →
	Partial evidence “Maintel is a leading systems integrator and managed services provider, delivering effortless communications solutions to a broad spectrum of businesses in the UK and…” Source: RevenueBase Database · checked Sep 28, 2026
15	Interex Group	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	160 contacts →
	Indirect evidence “InterEx Group is becoming the strategic partner of choice for organizations undergoing digital, business, and technology transformation.” Source: RevenueBase Database · checked Sep 28, 2026
16	ORG	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	1,001-5,000	139 contacts →
	Indirect evidence “We believe that change is an opportunity to thrive.” Source: RevenueBase Database · checked Sep 28, 2026
17	Infosight Consulting	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	201-500	121 contacts →
	Indirect evidence “At Infosight, we architect the future of enterprises by engineering your digital core and activating the intelligence within.” Source: RevenueBase Database · checked Sep 28, 2026
18	Opticoreit	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	120 contacts →
	Partial evidence “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.” Source: RevenueBase Database · checked Sep 28, 2026
19	Glue Reply	Partial evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	118 contacts →
	Partial evidence “WHO WE ARE Glue Reply is a business consultancy that strives to help its clients achieve their future potential by developing solutions that often for the first time align IT…” Source: RevenueBase Database · checked Sep 28, 2026
20	Bedford Consulting	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	117 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 28, 2026
21	kpi.com	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	87 contacts →
	Indirect evidence “KPI is an all-in-one business solution providing: Accounting, Payroll, Sales, Human Resources, Project Management, Report and Document applications all in one platform according…” Source: RevenueBase Database · checked Sep 28, 2026
22	Growth HUB	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	85 contacts →
	Indirect evidence “Growth Hub embeds operational teams inside professional services firms.” Source: RevenueBase Database · checked Sep 28, 2026
23	Proservartner	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	51-200	84 contacts →
	Indirect evidence “Proservartner is an international consulting firm.” Source: RevenueBase Database · checked Sep 28, 2026
24	Intuition IT Intuitive Technology Recruitment	Indirect evidence	London, United KingdomHQ checked Sep 28, 2026	11-50	84 contacts →
	Indirect evidence “IT'S NOT RECRUITMENT.” Source: RevenueBase Database · checked Sep 28, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: business systems integration consultants. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names business systems integration consultants.
Partial evidence: Its own public description names part of business systems integration consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name business systems integration consultants. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 24 of 1,370 business systems integration consultants based in London, United Kingdom

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Business systems integration consultants based in London, United Kingdom at a glance

As of Sep 28, 2026

36.2%Verified-email coverage

12.4Average contacts per company

1-10Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

853

11-50

336

51-200

136

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,370 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among business systems integration consultants, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in London, United Kingdom whose own description of what they do matches “business systems integration consultants”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names business systems integration consultants), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among business systems integration consultants, and records with no verified work email. Companies headquartered outside London are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 6,151 across the full list. 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 28, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Business systems integration consultants by metro in the United Kingdom

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names business systems integration consultants, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

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

RevenueBase identified 1,370 business systems integration consultants headquartered in London, United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

K2 Partnering Solutions, headquartered in London, tops this list with the largest team on record.

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

London leads the United Kingdom with 1,370 headquartered companies, followed by Manchester (97) and Birmingham (58).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 6,151 verified decision-maker contacts tracked across these 1,370 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 28, 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 Smart Search, 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.