Company lists · Data refreshed October 2026

Top 20 Transaction server software suppliers based in the United States

RevenueBase identified 38 company matches for transaction server software suppliers associated with the United States as of October 2026 and tracks 12,692 professional contacts across them, including 4,342 with verified work emails. Atlanta is the largest hub.

This list covers company matches for transaction server software suppliers associated with the United States, 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 19, 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 Oct 19, 2026 How this list was built
38Companies
12,692Contacts tracked
4,342Verified emails
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The 20 largest transaction server software suppliers based in the United States

Ranked by team size
Top 20 of 38 company matches for transaction server software suppliers based in the United States, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 19, 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 matchElkhorn, NE, United StatesHQ recorded Oct 19, 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 19, 2026 · View company records in RevenueBase
2Exact matchCenter Valley, PA, United StatesHQ recorded Oct 19, 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 19, 2026 · View company records in RevenueBase
3Exact matchWhite Plains, NY, United StatesHQ recorded Oct 19, 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 19, 2026 · View company records in RevenueBase
4Exact matchAtlanta, GA, United StatesHQ recorded Oct 19, 20261,001-5,000322 contacts →

Exact match

“VSoft is a leading provider of banking and payment solutions to financial institutions of all sizes worldwide.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
5Exact matchCleveland, OH, United StatesHQ recorded Oct 19, 2026201-500207 contacts →

Exact match

“Our mission is to be the industry leader in merchant services by providing an innovative suite of business solutions, a high level of quality service, and having professional…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
6Exact matchOrlando, FL, United StatesHQ recorded Oct 19, 202651-20038 contacts →

Exact match

“Paynuity provides a seamless, end to end, payment experience for merchants and banks alike - the nexus of payment processing.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
7Exact matchSarasota, FL, United StatesHQ recorded Oct 19, 202611-5029 contacts →

Exact match

“CSF International (CSFi) is a global provider of payment authorization and transaction switching solutions.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
8Exact matchLargo, FL, United StatesHQ recorded Oct 19, 202611-5028 contacts →

Exact match

“EFX is paving the way for transaction processing and capital flow management with new solutions and technology.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
9Exact matchIthaca, NY, United StatesHQ recorded Oct 19, 202611-5024 contacts →

Exact match

“RP Solutions delivers innovative technology solutions to businesses, third party processors and banks enabling them to streamline receivables processing, accelerate funds…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
10Exact matchLos Angeles, CA, United StatesHQ recorded Oct 19, 20261-1021 contacts →

Exact match

“Merchant Chimp services are the tools, solutions, and people that create a secure financial pipeline between your business, your customers, and your bank.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
11Exact matchHouston, TX, United StatesHQ recorded Oct 19, 202611-5018 contacts →

Exact match

“eProcessing Network (ePN) is a software development company specializing in secure, real-time transaction processing services, solutions and support for all small to mid-sized…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
12Exact matchAtlanta, GA, United StatesHQ recorded Oct 19, 202611-5015 contacts →

Exact match

“Pidgin is an innovative payments platform designed to provide financial institutions with secure and efficient transactions.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
13Exact matchCarrollton, TX, United StatesHQ recorded Oct 19, 202611-5012 contacts →

Exact match

“At Yoozy, our focus is on delivering reliable and secure payment solutions which will help your business to become more profitable.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
14Exact matchMiami Beach, FL, United StatesHQ recorded Oct 19, 202651-20010 contacts →

Exact match

“Merchant Hub is Your partner to Grow Revenues and Develop Customer Relationships with the Newest Payment Technologies Merchant Hub is a company like no other.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
15Exact matchMiami, FL, United StatesHQ recorded Oct 19, 202611-509 contacts →

Exact match

“Ocean Systems, Inc.(OSI) is a software development company specializing in Compliance and Electronic Funds Transfer (EFT) applications for the financial and banking industry.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
16Exact matchMiramar, FL, United StatesHQ recorded Oct 19, 202611-508 contacts →

Exact match

“At Croem Inc we are committed to offer reliable technological solutions, focused on the automatic processing of financial transactions carried out by our clients as part of their…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
17Exact matchManchester Center, VT, United StatesHQ recorded Oct 19, 202611-505 contacts →

Exact match

“Safeguarding Payments For over two decades, CONIX has been a world leader in providing payment software and related services to the financial industry.”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
18Exact matchBoise, ID, United StatesHQ recorded Oct 19, 20261-103 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
19Exact matchJohns Creek, GA, United StatesHQ recorded Oct 19, 202611-502 contacts →

Exact match

“With over 20 years of Experience in the Financial Services and Payments industry, Rova Payments specializes in delivering high-performance payment, security, and customer…”

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase
20Exact matchGrapevine, TX, United StatesHQ recorded Oct 19, 20261-101 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Oct 19, 2026 · View company records in RevenueBase

Showing 20 of 38 transaction server software suppliers based in the United States

See the full list, filter by size, metro and specialty, and access 4,342 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Transaction server software suppliers based in the United States at a glance

As of Oct 19, 2026
34.2%Verified-email coverage
334.0Average contacts per company
11-50Median size (employees)
5.3%Largest-city concentration · Atlanta
Oct 19, 2026Page data refreshed

Companies by employee count

1-10
10
11-50
13
51-200
7
201-500
3
1,001-5,000
3
10001+
2

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 38 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 the United States whose business descriptions match “transaction server software suppliers” 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 4,342 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 19, 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.

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 server software suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many transaction server software suppliers are there based in the United States?

RevenueBase identified 38 company matches for transaction server software suppliers associated with the United States 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?

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

Which city has the most transaction server software suppliers?

Atlanta leads with 2 company records, followed by Miami (2) and Wayne (2).

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 4,342 professional contacts with verified work emails tracked across these 38 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 19, 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.