Company lists · Data refreshed September 2026

Top 25 Payment systems consulting firms based in the United Kingdom

Name: Payment systems consulting firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 274 companies tracked

RevenueBase identified 274 payment systems consulting firms headquartered in the United Kingdom as of September 2026 and tracks 4,000 professional contacts across them, including 1,445 with verified work emails and 217 with mobile numbers. London is the largest hub.

This list covers payment systems consulting firms headquartered in the 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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 HQ checked on every row Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

274Companies

4,000Contacts tracked

1,445Verified emails

217Mobile numbers

Explore all 274 companies → Free signup · no credit card · 500 free credits

The 25 largest payment systems consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 274 payment systems consulting firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names payment systems consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Paypoint PLCIndirect evidence	Welwyn Garden City, United KingdomHQ checked Sep 5, 2026	501-1,000	499
	“In thousands of retail locations, at home and on the move, we make life more convenient for everyone.” Source: company website · checked Sep 5, 2026
2	PaymentsensePartial evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	486
	“Paymentsense, now Dojo!” Source: company website · checked Sep 5, 2026
3	Trust PaymentsPartial evidence	London, United KingdomHQ checked Sep 5, 2026	501-1,000	441
	“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: company website · checked Sep 5, 2026
4	Barclaycard PaymentsPartial evidence	Canary Wharf, United KingdomHQ checked Sep 5, 2026	10001+	364
	“Welcome to Barclaycard Payments.” Source: company website · checked Sep 5, 2026
5	Takepayments LimitedPartial evidence	Stockport, United KingdomHQ checked Sep 5, 2026	201-500	311
	“Whichever way you want to get paid, we help you find the payment solution that best suits your needs and provide you with full support and assistance throughout your time with us.” Source: company website · checked Sep 5, 2026
6	Retail Merchant ServicesPartial evidence	Milton Keynes, United KingdomHQ checked Sep 5, 2026	201-500	169
	“Retail Merchant Services is a fast-growing payment services and software provider, combining our shared ambition to provide care and technology that can help small businesses…” Source: company website · checked Sep 5, 2026
7	Compass Plus TechnologiesPartial evidence	Nottingham, United KingdomHQ checked Sep 5, 2026	201-500	91
	“We are passionate about payments technology and architecting it properly for the needs of today and tomorrow.” Source: company website · checked Sep 5, 2026
8	Pinion ServicesPartial evidence	Wakefield, United KingdomHQ checked Sep 5, 2026	51-200	86
	“Pinion is a professional services firm focused primarily on payment-solutions technologies and information management.” Source: company website · checked Sep 5, 2026
9	Financial HouseIndirect evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	77
	“Financial House, a trusted provider of financial services, offers merchant acquiring and card-issuing solutions.” Source: company website · checked Sep 5, 2026
10	MLPartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	77
	“Established in 2007, ML has developed deep roots within the payments and banking industry.” Source: company website · checked Sep 5, 2026
11	BB Merchant ServicesIndirect evidence	Bishops Waltham, United KingdomHQ checked Sep 5, 2026	11-50	60
	“From our Nordic origins, where we first launched in Stockholm in 2008, we have built a strong international business headquartered in Oslo, with offices worldwide and clients in…” Source: company website · checked Sep 5, 2026
12	IPOSGPartial evidence	Milton Keynes, United KingdomHQ checked Sep 5, 2026	11-50	57
	“IPOSG is a UK-based technology and services company specialising in EPOS (Electronic Point of Sale) solutions and payment processing.” Source: company website · checked Sep 5, 2026
13	Yourcash UK & IrelandIndirect evidence	Milton Keynes, United KingdomHQ checked Sep 5, 2026	51-200	38
	“We have had an interesting journey over the last 17 years.” Source: company website · checked Sep 5, 2026
14	FibonatixPartial evidence	Manchester, United KingdomHQ checked Sep 5, 2026	11-50	36
	“Being able to receive payments is the lifeline of every business.” Source: company website · checked Sep 5, 2026
15	Yorkshire PaymentsPartial evidence	Brighouse, United KingdomHQ checked Sep 5, 2026	11-50	26
	“Yorkshire Payments Contact Details sales@yorkshirepayments.com 01422 323785 @YorkshirePay We are an independent company that specializes in payment processing.” Source: company website · checked Sep 5, 2026
16	Traderoot InternationalPartial evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	24
	“Traderoot is a strategic financial software development company that provides advanced global, PCI PA DSS certified and validated payments solutions which leverage the latest…” Source: company website · checked Sep 5, 2026
17	TectahIndirect evidence	Manchester, United KingdomHQ checked Sep 5, 2026	11-50	24
	“Building Businesses.” Source: company website · checked Sep 5, 2026
18	OPTALPartial evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	21
	“Optimising payment processes means reducing the complex to the critical.” Source: company website · checked Sep 5, 2026
19	Payx GroupPartial evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	19
	“PayX is a well known specialist global Payments Market Analyst, Consultancy & Nextgen (FinTech) portfolio firm.” Source: company website · checked Sep 5, 2026
20	Paya GroupIndirect evidence	Northampton, United KingdomHQ checked Sep 5, 2026	11-50	18
	“PAYA Group is a UK based award-winning independent provider of card processing solutions to businesses of all sizes, with a focus on leveraging technology.” Source: company website · checked Sep 5, 2026
21	PSE ConsultingStrong evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	17
	“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: company website · checked Sep 5, 2026
22	INQ HoldingsPartial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	17
	“INQ specialises in comprehensive consultancy services for Foreign Exchange, Banking, Payments, and Processing.” Source: company website · checked Sep 5, 2026
23	Flawless Money LTDPartial evidence	Surbiton, United KingdomHQ checked Sep 5, 2026	11-50	16
	“Flawless Money is a niche business consultancy focusing on payments and dealing with the financial regulation of electronic money, money remittance, and other payments.” Source: company website · checked Sep 5, 2026
24	Digital Payments GroupPartial evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	15
	“DPG is a card and account issuing processor which provides smart services for businesses built on payments.” Source: company website · checked Sep 5, 2026
25	PaygatePartial evidence	Stevenage, United KingdomHQ checked Sep 5, 2026	11-50	15
	“With nearly half a century of expertise in the payments industry, we are a leading provider of payments, credit and debit transaction solutions and services to the private and…” Source: company website · checked Sep 5, 2026

Showing 25 of 274 payment systems consulting firms based in the United Kingdom

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Payment systems consulting firms based in the United Kingdom at a glance

As of Sep 5, 2026

1-10Median size (employees)

LondonLargest hub · 121 HQs

217Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

153

11-50

51-200

201-500

501-1,000

10001+

Verified emails by last verification

0–30

1,350

31–60

61–90

90–180

180+

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 payment systems consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “payment systems consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among payment systems consulting firms, and records with no verified work email. Companies headquartered outside United Kingdom 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 an evidence 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, 1,445 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 5, 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.

Payment systems consulting firms by metro

Payment systems consulting firms in London121

Frequently asked

How many payment systems consulting firms are there based in the United Kingdom?

RevenueBase identified 274 payment systems consulting firms headquartered in the 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?

Paypoint PLC, headquartered in Welwyn Garden City, tops this list with the largest team on record.

Which city has the most payment systems consulting firms?

London leads with 121 headquartered companies, followed by Birmingham (6) and Milton Keynes (5).

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 1,445 verified decision-maker contacts tracked across these 274 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 5, 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.