Company lists · Data refreshed October 2026

Top 25 Transaction processing software companies worldwide

RevenueBase identified 578 company matches for transaction processing software companies worldwide as of October 2026 and tracks 61,194 professional contacts across them, including 20,416 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for transaction processing software companies worldwide, 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 October 20, 2026. Country and city lists for transaction processing software companies follow the table.

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 Oct 20, 2026 How this list was built
578Companies
61,194Contacts tracked
20,416Verified emails
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The 25 largest transaction processing software companies worldwide

Ranked by team size
Top 25 of 578 company matches for transaction processing software companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 20, 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 matchCincinnati, OH, United StatesHQ recorded Oct 20, 20265,001-10,0007,921 contacts →

Exact match

“Worldpay combined with Global Payments in January 2026 to create a leading payments technology and software company that powers commerce for businesses of all sizes worldwide.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
2Exact matchMumbai, IndiaHQ recorded Oct 20, 202610001+6,374 contacts →

Exact match

“Oracle helps banks simplify processes, innovate on demand, and drive predictive insight.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
3Exact matchElkhorn, NE, United StatesHQ recorded Oct 20, 20261,001-5,0004,758 contacts →

Exact match

“ACI Worldwide, an original innovator in global payments technology, delivers transformative software solutions that power intelligent payments orchestration in real time so banks…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
4Exact matchSan Juan, PR, United StatesHQ recorded Oct 20, 20265,001-10,0003,461 contacts →

Exact match

“EVERTEC, Inc.(NYSE: EVTC) is a leading full-service transaction processing business in Latin America, providing a broad range of merchant acquiring, payment processing and…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
5Exact matchAtlanta, GA, United StatesHQ recorded Oct 20, 20261,001-5,0002,931 contacts →

Exact match

“Elavon, a wholly owned subsidiary of U.S.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
6Exact matchNoida, IndiaHQ recorded Oct 20, 20261,001-5,0002,875 contacts →

Exact match

“Nucleus Software is the leading provider of lending and transaction banking solutions to the global financial services industry.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
7Exact matchCenter Valley, PA, United StatesHQ recorded Oct 20, 20261,001-5,0002,286 contacts →

Exact match

“Shift4 (NYSE: FOUR) powers the experience economy, enabling businesses to deliver the moments that matter.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
8Exact matchSão Paulo, BrazilHQ recorded Oct 20, 202610001+2,233 contacts →

Exact match

“A FIS é fornecedora líder de soluções de tecnologia para comerciantes, bancos e empresas de mercado de capitais em todo o mundo.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
9Exact matchPaducah, KY, United StatesHQ recorded Oct 20, 20261,001-5,0001,897 contacts →

Exact match

“As a forward-thinking financial technology and software partner, we help community and regional banks, as well as organizations worldwide, solve their customers’ needs through…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
10Exact matchMumbai, IndiaHQ recorded Oct 20, 20261,001-5,0001,430 contacts →

Exact match

“Mindgate Solutions, a globally recognized and leading player in digital payments since 2008, is headquartered in Mumbai, India, with regional hubs in the Middle East, Southeast…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
11Exact matchSão Paulo, BrazilHQ recorded Oct 20, 20261,001-5,0001,215 contacts →

Exact match

“At the forefront of the financial revolution, Topaz is a technological powerhouse specializing in digital financial solutions, standing out as the undisputed leader in the…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
12Exact matchFredericia, DenmarkHQ recorded Oct 20, 2026501-1,0001,122 contacts →

Exact match

“We are one of the most important tech companies in Denmark as we build critical financial software for millions of users.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
13Exact matchMilan, ItalyHQ recorded Oct 20, 2026501-1,000826 contacts →

Exact match

“TAS delivers advanced software solutions for digital payments, cards and financial markets.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
14Exact matchBaar, SwitzerlandHQ recorded Oct 20, 20261,001-5,000799 contacts →

Exact match

“Founded in 1996, BPC is a proven industry leader that is shaping the world of transactions with quick, safe and easy payment processing.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
15Exact matchUnited StatesHQ recorded Oct 20, 20265,001-10,000643 contacts →

Exact match

“Metavante Corporation is the principal subsidiary of Metavante Technologies, Inc.(NYSE: MV).”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
16Exact matchNairobi, KenyaHQ recorded Oct 20, 2026501-1,000555 contacts →

Exact match

“Craft Silicon is a proudly Kenyan software house that provides software solutions for Core Banking, Micro Finance, Switching and Electronic Payments.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
17Exact matchJohnston, IA, United StatesHQ recorded Oct 20, 2026501-1,000528 contacts →

Exact match

“SHAZAM Inc.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
18Exact matchHamburg, GermanyHQ recorded Oct 20, 2026501-1,000525 contacts →

Exact match

“PPI AG Consulting und Softwareentwicklung für Banken und Versicherungen Die PPI AG ist seit über 40 Jahren als Beratungs- und Softwarehaus erfolgreich für Banken, Versicherungen…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
19Exact matchMunich, GermanyHQ recorded Oct 20, 202651-200501 contacts →

Exact match

“KAL is a global software company operating at the forefront of the ATM industry.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
20Exact matchBerlin, GermanyHQ recorded Oct 20, 2026501-1,000460 contacts →

Exact match

“Unzer digitalizes commerce with payment and software solutions that cover the entire merchant value chain.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
21Exact matchWhite Plains, NY, United StatesHQ recorded Oct 20, 2026201-500411 contacts →

Exact match

“ECS Fin delivers integrated, end-to-end transaction processing solutions for banks, corporates and capital markets.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
22Exact matchAndheri, IndiaHQ recorded Oct 20, 202651-200347 contacts →

Exact match

“Finacus Solutions Pvt.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
23Exact matchHyderabad, IndiaHQ recorded Oct 20, 2026201-500335 contacts →

Exact match

“Olive Crypto Systems Pvt.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
24Exact matchVilnius, LithuaniaHQ recorded Oct 20, 2026201-500333 contacts →

Exact match

“Shift4 Payments is the leader in secure payment processing solutions.”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase
25Exact matchNanterre, FranceHQ recorded Oct 20, 2026201-500328 contacts →

Exact match

“An expert in payments and the management of real-time, high-volume payment systems, Transactis France offers you off-the-shelf or modular solutions for processing your…”

Recorded in the RevenueBase company graph · Oct 20, 2026 · View company records in RevenueBase

Showing 25 of 578 transaction processing software companies worldwide

See the full list, filter by size, metro and specialty, and access 20,416 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Transaction processing software companies worldwide at a glance

As of Oct 20, 2026
33.4%Verified-email coverage
105.9Average contacts per company
11-50Median size (employees)
2.1%Largest-city concentration · London
Oct 20, 2026Page data refreshed

Companies by employee count

1-10
180
11-50
202
51-200
115
201-500
39
501-1,000
10
1,001-5,000
20
5,001-10,000
4
10001+
6

Email recency is reported on each country list linked below.

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.
Coverage
Every country. Country and city lists for transaction processing software companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “transaction processing software companies” 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. 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 20,416 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 October 20, 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.

Transaction processing software companies by location

1 lists · largest first

Every Transaction processing software companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 “transaction processing software companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many transaction processing software companies are there worldwide?

RevenueBase identified 578 company matches for transaction processing software companies worldwide as of October 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?

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

Which country has the most transaction processing software companies?

The United States leads with 175 companies. Every transaction processing software companies list by country and city is linked on this page.

Which city has the most transaction processing software companies?

London leads with 12 company records, followed by Sao Paulo (8) and Tehran (7).

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 20,416 professional contacts with verified work emails tracked across these 578 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 October 20, 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.