Company lists · Data refreshed September 2026

Top 10 Financial transaction software companies based in New York, United States

RevenueBase identified 37 financial transaction software companies headquartered in New York, United States as of September 2026 and tracks 749 professional contacts across them, including 371 with verified work emails and 193 with mobile numbers. Across the United States, New York is the largest hub for this category.

This list covers financial transaction software companies headquartered in New York, United States, 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 12, 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 12, 2026 86% judged on-target in blind review
37Companies
749Contacts tracked
371Verified emails
193Mobile numbers
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The 10 largest financial transaction software companies based in New York, United States

Ranked by team size
Top 10 of 37 financial transaction software companies based in New York, United States, ranked by team size, largest first. Data refreshed Sep 12, 2026. RevenueBase Smart Search rates how each company's information relates to financial transaction software companies: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceNew York, NY, United StatesHQ checked Sep 12, 2026201-500210 contacts →

Indirect evidence

“At CheckAlt, we know checks-after all, it’s in our name.”

Source: RevenueBase Database · checked Sep 12, 2026
2Indirect evidenceNew York, NY, United StatesHQ checked Sep 12, 202651-20019 contacts →

Indirect evidence

“Who we are: Epay World is a full service payment processing company, specializing in processing services for Visa, MasterCard, American Express, Discover, Diners Club, EBT, and…”

Source: RevenueBase Database · checked Sep 12, 2026
3Partial evidenceNew York, NY, United StatesHQ checked Sep 12, 202611-5017 contacts →

Partial evidence

“Diameter provides embedded payments to banks and financial institutions, with a focus on stablecoin related payments.”

Source: RevenueBase Database · checked Sep 12, 2026
4Indirect evidenceNew York, United StatesHQ checked Sep 12, 202651-20010 contacts →

Indirect evidence

“Orange Pay is a credit card processing company who helps businesses prosper by providing effective business solutions, unmatched service and valuable advocacy.”

Source: RevenueBase Database · checked Sep 12, 2026
5Strong evidenceNew York, NY, United StatesHQ checked Sep 12, 20261-104 contacts →

Strong evidence

“Marrying the latest technologies with industry know-how, Operartis' software solutions boost your enterprise's level of transaction processing automation and control - saving your…”

Source: RevenueBase Database · checked Sep 12, 2026
6Indirect evidenceNew York, United StatesHQ checked Sep 12, 202611-503 contacts →

Indirect evidence

“We build payment processing tools for online and in-person merchants to accept instant bank-to-bank payments in real-time during customer checkouts.”

Source: RevenueBase Database · checked Sep 12, 2026
7Indirect evidenceNew York, NY, United StatesHQ checked Sep 12, 202611-503 contacts →

Indirect evidence

“At Equepay, we believe payments should be simple, so you can focus on what truly matters - your business.”

Source: RevenueBase Database · checked Sep 12, 2026
8Partial evidenceNew York, NY, United StatesHQ checked Sep 12, 20261-103 contacts →

Partial evidence

“At Press Pay, we are a team of seasoned payments professionals dedicated to empowering SMB's through tailored financial solutions.”

Source: RevenueBase Database · checked Sep 12, 2026
9Indirect evidenceNew York, NY, United StatesHQ checked Sep 12, 202651-2001 contacts →

Indirect evidence

“Zero Fees Processing is a leading merchant processing services company based in the vibrant heart of Manhattan, NY.”

Source: RevenueBase Database · checked Sep 12, 2026
10Partial evidenceNew York, United StatesHQ checked Sep 12, 20261-101 contacts →

Partial evidence

“For the last 25 years, the INDISCAN team have worked in the financial and financial technology industry; designing deploying, and supporting mission critical, industry leading…”

Source: RevenueBase Database · checked Sep 12, 2026

Showing 10 of 37 financial transaction software companies based in New York, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 371 reachable decision-makers.

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Financial transaction software companies based in New York, United States at a glance

As of Sep 12, 2026
49.5%Verified-email coverage
25.8%Mobile-number coverage
20.2Average contacts per company
11-50Median size (employees)
Sep 12, 2026Page data refreshed

Companies by employee count

1-10
10
11-50
12
51-200
13
201-500
2

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

Company record updated

Median 64.0d

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 financial transaction software companies, 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 New York, United States whose own description of what they do matches “financial transaction software companies”. 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 financial transaction software companies), 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 financial transaction software companies, and records with no verified work email. Companies headquartered outside New York 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, 371 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 12, 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.

Financial transaction software companies by metro in the United States

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 financial transaction software companies, 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 financial transaction software companies are there based in New York, United States?

RevenueBase identified 37 financial transaction software companies headquartered in New York, United States 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?

Checkalt, headquartered in New York, tops this list with the largest team on record.

Which city in the United States has the most financial transaction software companies?

New York leads the United States with 31 headquartered companies, followed by Atlanta (28) and Miami (25).

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 371 verified decision-maker contacts tracked across these 37 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 12, 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.