Company lists · Data refreshed September 2026

Top 25 Financial transaction software companies based in Australia

Name: Financial transaction software companies based in Australia
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 2, 2026 54 companies tracked

RevenueBase identified 54 financial transaction software companies headquartered in Australia as of September 2026 and tracks 42,280 professional contacts across them, including 19,241 with verified work emails and 10,643 with mobile numbers. Sydney is the largest hub.

This list covers financial transaction software companies headquartered in Australia, 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 2, 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 Match evidence on every row Refreshed Sep 2, 2026 86% judged on-target in blind review

54Companies

42,280Contacts tracked

19,241Verified emails

10,643Mobile numbers

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The 25 largest financial transaction software companies based in Australia

Ranked by team size

Top 25 of 54 financial transaction software companies based in Australia, ranked by team size, largest first. Data refreshed Sep 2, 2026. Evidence rates how directly each company's own description names financial transaction software companies: 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	FISPartial evidence	Sydney, Australia	10001+	39,431
	“Unlocking financial technology.” Source: company website · checked Sep 2, 2026
2	FlywirePartial evidence	Adelaide, Australia	1,001-5,000	1,186
	“Flywire Corporation (Nasdaq: FLYW) is a global payments enablement and software company.” Source: company website · checked Sep 2, 2026
3	Tyro PaymentsIndirect evidence	Sydney, Australia	501-1,000	576
	“In 2003, Tyro set out to change the way payments are made.” Source: company website · checked Sep 2, 2026
4	AsiapayIndirect evidence	Melbourne, Australia	51-200	134
	“AsiaPay is a global leading, award-winning digital payment and technology provider, trusted by thousands of banks and merchants in Asia for over two decades.” Source: company website · checked Sep 2, 2026
5	FAT ZebraIndirect evidence	Surry Hills, Australia	51-200	86
	“Fat Zebra is the payments partner for ambitious business.” Source: company website · checked Sep 2, 2026
6	Datamesh GroupIndirect evidence	Barangaroo, Australia	51-200	76
	“DMG is focused on revolutionising the payment systems available to merchants and retailers, delivering integrated payment capabilities and valuable customer insights through…” Source: company website · checked Sep 2, 2026
7	EONXPartial evidence	Camberwell, Australia	51-200	72
	“EonX is a financial technology company powering the next generation of eWallet, Payments & Loyalty platforms which enable business, consumers and employees to better engage and…” Source: company website · checked Sep 2, 2026
8	Zenith Payments PTY LTDIndirect evidence	Mascot, Australia	51-200	71
	“Zenith Payments offers multiple leading payment processing solutions, across various C2B and B2B industries.” Source: company website · checked Sep 2, 2026
9	Change FinancialPartial evidence	Brisbane, Australia	51-200	67
	“Change Financial (Change) is a global fintech, listed on the Australian Securities Exchange (ASX: CCA), providing payments solutions to banks and fintechs.” Source: company website · checked Sep 2, 2026
10	Novatti Group ASX NOVIndirect evidence	Melbourne, Australia	51-200	67
	“Empower your customers with flexible, seamless payment solutions.” Source: company website · checked Sep 2, 2026
11	Till PaymentsIndirect evidence	Macquarie Park, Australia	51-200	62
	“Till is the fast-moving, Aussie-born, global fintech disruptor opening up a world of possibilities for businesses seeking simple, seamless, all-in-one payments, we take the…” Source: company website · checked Sep 2, 2026
12	PaychoiceIndirect evidence	Melbourne, Australia	11-50	37
	“Convert more customers, get paid faster and streamline your business.” Source: company website · checked Sep 2, 2026
13	Hanasoft PTY LTDIndirect evidence	Sydney, Australia	51-200	31
	“At Hanasoft, we believe that anything is possible!” Source: company website · checked Sep 2, 2026
14	Flash PaymentsPartial evidence	Sydney, Australia	11-50	28
	“Flash Payments is a leading Australian payments provider for financial institutions, fintechs, financial advisers and digital asset service providers.” Source: company website · checked Sep 2, 2026
15	Fintech Services AustraliaPartial evidence	Perth, Australia	11-50	26
	“FinTech Services Australia is a cutting-edge financial and technology company that drives businesses to connect and grow their customers through ground-breaking finance solutions.” Source: company website · checked Sep 2, 2026
16	Zero PaymentsIndirect evidence	Perth, Australia	1-10	24
	“Merchant Payment Solutions (MPS) has now become Zero Payments.” Source: company website · checked Sep 2, 2026
17	DatalineStrong evidence	North Sydney, Australia	11-50	21
	“The Dataline Group, was founded in 1987, has been at the forefront of providing financial transaction processing solutions to clients in the Asia Pacific region.” Source: company website · checked Sep 2, 2026
18	Card Access ServicesIndirect evidence	Sydney, Australia	11-50	17
	“Secure 24/7 Payment Processing with Australia's most experienced Payment Gateway Provider With over 24 years in the payment processing industry, Card Access Services has been…” Source: company website · checked Sep 2, 2026
19	EftlabIndirect evidence	Brisbane, Australia	51-200	14
	“Experience the power of our comprehensive suite of next-gen payment solutions.” Source: company website · checked Sep 2, 2026
20	Merchant WarriorIndirect evidence	Brisbane, Australia	1-10	12
	“Merchant Warrior is an Australia based payment provider that offers a range of online payment solutions to merchants worldwide.” Source: company website · checked Sep 2, 2026
21	Flo2cashIndirect evidence	Sydney, Australia	11-50	11
	“Flo2Cash is a technology company that builds smart systems to help businesses accept payments.” Source: company website · checked Sep 2, 2026
22	IP VenturesStrong evidence	Perth, Australia	11-50	9
	“IP Ventures is a specialist in the financial services industry with a focus on the development of lending platforms, payment gateways, electronic transaction processing, and loan…” Source: company website · checked Sep 2, 2026
23	Cloud PAY AustraliaIndirect evidence	Sydney, Australia	11-50	8
	“Delivering a better payments solution to increase profitability CloudPay is an innovative payments disruptor for businesses across Australia.” Source: company website · checked Sep 2, 2026
24	Inpaytech Limited ASX Ip1Indirect evidence	Sydney, Australia	11-50	7
	“InPayTech (ASX Code IP1) In 2016 Integrated Payment Technologies Limited acquired the companies and patent rights of Payment Adviser Group (PAG) an Australian company which…” Source: company website · checked Sep 2, 2026
25	Touch2payIndirect evidence	South Brisbane, Australia	1-10	7
	“Touch2Pay was founded to address a gap in the payment industry, offering businesses of all sizes innovative, secure, and accessible solutions.” Source: company website · checked Sep 2, 2026

Showing 25 of 54 financial transaction software companies based in Australia

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Financial transaction software companies based in Australia at a glance

As of Sep 2, 2026

11-50Median size (employees)

SydneyLargest hub · 17 HQs

10,643Contacts with mobile numbers

Sep 2, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

501-1,000

1,001-5,000

10001+

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 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 Australia 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.
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 Australia 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, 19,241 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 2, 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

How many financial transaction software companies are there based in Australia?

RevenueBase identified 54 financial transaction software companies headquartered in Australia 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?

FIS, headquartered in Sydney, tops this list with the largest team on record.

Which city has the most financial transaction software companies?

Sydney leads with 17 headquartered companies, followed by Melbourne (8) and Brisbane (3).

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 19,241 verified decision-maker contacts tracked across these 54 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 2, 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.