Company lists · Data refreshed September 2026

Top 25 Payments consulting firms based in London, United Kingdom

Name: Payments consulting firms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 110 companies tracked

RevenueBase identified 110 payments consulting firms headquartered in London, United Kingdom as of September 2026 and tracks 1,928 professional contacts across them, including 693 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers payments consulting firms 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 29, 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 29, 2026 86% judged on-target in blind review

110Companies

1,928Contacts tracked

693Verified emails

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The 25 largest payments consulting firms based in London, United Kingdom

Ranked by team size

Top 25 of 110 payments consulting firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to payments consulting firms: 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	Paymentsense	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	486 contacts →
	Partial evidence “Paymentsense, now Dojo!” Source: RevenueBase Database · checked Sep 29, 2026
2	Trust Payments	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	501-1,000	441 contacts →
	Partial evidence “Our mission is to help businesses to optimise their sales and customer experience through facilitating speedy and seamless payments, loyalty, and data management creating truly…” Source: RevenueBase Database · checked Sep 29, 2026
3	BE Shaping The Future UK	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	83 contacts →
	Partial evidence “We are a management consultancy based in London; working with our clients (predominantly global banks, payment providers and other financial institutions) to shape their future…” Source: RevenueBase Database · checked Sep 29, 2026
4	Financial House	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	77 contacts →
	Indirect evidence “Financial House, a trusted provider of financial services, offers merchant acquiring and card-issuing solutions.” Source: RevenueBase Database · checked Sep 29, 2026
5	ML	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	77 contacts →
	Partial evidence “Established in 2007, ML has developed deep roots within the payments and banking industry.” Source: RevenueBase Database · checked Sep 29, 2026
6	OPTAL	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	21 contacts →
	Partial evidence “Optimising payment processes means reducing the complex to the critical.” Source: RevenueBase Database · checked Sep 29, 2026
7	PSE Consulting	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	17 contacts →
	Strong evidence “PSE Consulting – PSE (Payment Systems Europe Limited), based in London, UK, was formed in 1991 as a specialist business and technology payment systems consulting company.” Source: RevenueBase Database · checked Sep 29, 2026
8	Digital Payments Group	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	15 contacts →
	Partial evidence “DPG is a card and account issuing processor which provides smart services for businesses built on payments.” Source: RevenueBase Database · checked Sep 29, 2026
9	Finstack Limited	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	15 contacts →
	Partial evidence “An advanced Fintech Organization with experienced and expertise employees in payments, high risk acquiring, crypto acquiring domain.” Source: RevenueBase Database · checked Sep 29, 2026
10	European Merchant Services EMS UK	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	12 contacts →
	Indirect evidence “EMS assists Global merchants to trade cross border within Europe.” Source: RevenueBase Database · checked Sep 29, 2026
11	Accourt Payments Specialists, An SRM Company	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	10 contacts →
	Partial evidence “Accourt is a leading provider of strategic and operational consultancy services to the payments industry worldwide.” Source: RevenueBase Database · checked Sep 29, 2026
12	Centpays	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	10 contacts →
	Partial evidence “Let’s be honest, in payments, promises are everywhere, but delivery isn’t.” Source: RevenueBase Database · checked Sep 29, 2026
13	Paymentap	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	10 contacts →
	Partial evidence “Welcome to Paymentap, a leading payment processing company headquartered in London, United Kingdom.” Source: RevenueBase Database · checked Sep 29, 2026
14	First2pay	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	10 contacts →
	Indirect evidence “First2pay, established in 2005, is a distinguished provider of top-level merchant services, recognized for its expertise and reliability as a business partner.” Source: RevenueBase Database · checked Sep 29, 2026
15	ELORN	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	6 contacts →
	Partial evidence “Founded in 2015, Elorn has dedicated itself to supporting businesses of all types and sizes with their payment needs.” Source: RevenueBase Database · checked Sep 29, 2026
16	Paymentwise Merchant Solutions Limited	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	6 contacts →
	Partial evidence “PAYMENTWISE MERCHANT SOLUTIONS LIMITED is a Payment Processing Service-based company of UNIT 310 EAST LONDON WORKS 65 WHITECHAPEL ROAD, LONDON, United Kingdom.” Source: RevenueBase Database · checked Sep 29, 2026
17	Pinnacle Payment Economics	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	5 contacts →
	Partial evidence “Pinnacle Payment Economics is a specialist payment economics analytics company providing SaaS tools and related services to card issuers, acquirers, BIN Sponsors and PayFacs…” Source: RevenueBase Database · checked Sep 29, 2026
18	Wisesystems Solutions	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	5 contacts →
	Partial evidence “Wisesystems is a UK based consulting firm, provider of technical and business expertise focused on the financial services industry.” Source: RevenueBase Database · checked Sep 29, 2026
19	Paypr.Work Peɪpəwə K	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	5 contacts →
	Indirect evidence “Well, you may be surprised to know that we did not start as Marketers.” Source: RevenueBase Database · checked Sep 29, 2026
20	Amma Payment Solutions	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	4 contacts →
	Partial evidence “Amma Payment Solutions: Spearheading Payment Innovation with Distinguished Partnerships At Amma Payment Solutions, we take pride in being a frontrunner in the payment solutions…” Source: RevenueBase Database · checked Sep 29, 2026
21	Payments Company	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	4 contacts →
	Partial evidence “Supporting payments enabling you to focus on building your business We provide solutions up to and including an outsourced payments team Payments Company recognises the three main…” Source: RevenueBase Database · checked Sep 29, 2026
22	Payvector	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	3 contacts →
	Indirect evidence “Simple.” Source: RevenueBase Database · checked Sep 29, 2026
23	Insight Consultancy Limited	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	3 contacts →
	Partial evidence “Insight Consultancy provides specialist diagnostic and advisory services to the payment cards industry on a worldwide basis.” Source: RevenueBase Database · checked Sep 29, 2026
24	E-Venture Business Solutions	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	3 contacts →
	Partial evidence “Driving Success in the Digital and Global Arena: E-Venture Business Solutions brings together expert-led services in Cybersecurity Governance, Digital Payment Solutions, and…” Source: RevenueBase Database · checked Sep 29, 2026
25	PAY Ladies	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	1-10	3 contacts →
	Partial evidence “Pay Ladies is a specialised payment consultancy firm within the high-risk industry.” Source: RevenueBase Database · checked Sep 29, 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: payments consulting firms. 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 payments consulting firms.
Partial evidence: Its own public description names part of payments consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name payments consulting firms. 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 25 of 110 payments consulting firms based in London, United Kingdom

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Payments consulting firms based in London, United Kingdom at a glance

As of Sep 29, 2026

35.9%Verified-email coverage

17.5Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

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 110 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 payments consulting firms, 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 “payments consulting firms”. 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 payments consulting firms), 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 payments consulting firms, 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, 693 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 29, 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.

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 payments consulting firms, 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 payments consulting firms are there based in London, United Kingdom?

RevenueBase identified 110 payments consulting firms 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?

Paymentsense, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most payments consulting firms?

London leads the United Kingdom with 110 headquartered companies, followed by Birmingham (4) and Manchester (4).

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 693 verified decision-maker contacts tracked across these 110 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 29, 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.