Company lists · Data refreshed September 2026

Top 25 Api integration specialists fintech companies worldwide

RevenueBase identified 1,419 company matches for api integration specialists fintech companies worldwide as of September 2026 and tracks 99,813 professional contacts across them, including 38,824 with verified work emails. The United States is the largest market and London the largest hub.

This list covers company matches for api integration specialists fintech 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 September 27, 2026. Country and city lists for api integration specialists fintech 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 Sep 27, 2026 How this list was built
1,419Companies
99,813Contacts tracked
38,824Verified emails
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The 25 largest api integration specialists fintech companies worldwide

Ranked by team size
Top 25 of 1,419 company matches for api integration specialists fintech companies worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 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 matchJacksonville, FL, United StatesHQ recorded Sep 27, 202610001+38,885 contacts →

Exact match

“Unlocking financial technology.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchChennai, IndiaHQ recorded Sep 27, 20265,001-10,0007,843 contacts →

Exact match

“Intellect Design Arena Ltd is a global leader in enterprise-grade financial technology, delivering composable and intelligent solutions to forward-looking financial institutions…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchMonett, MO, United StatesHQ recorded Sep 27, 20265,001-10,0006,759 contacts →

Exact match

“Jack Henry (Nasdaq: JKHY) is a well-rounded financial technology company that strengthens the connections between people and their financial institutions through technology and…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchChennai, IndiaHQ recorded Sep 27, 20261,001-5,0002,968 contacts →

Exact match

“Maveric Systems is a banking-exclusive technology specialist with over 25 years of domain depth, partnering with global financial institutions to engineer trust in AI-first…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchSan Francisco, United StatesHQ recorded Sep 27, 20261,001-5,0002,075 contacts →

Exact match

“Headquartered in San Francisco, California, Zeta was named by Celent in 2023 as being among the likeliest partners for US banks and credit unions looking to modernize to a…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchIstanbul, TürkiyeHQ recorded Sep 27, 20261,001-5,0001,797 contacts →

Exact match

“Founded in 1987 to provide Information Technology services to the finance sector, Intertech has been operating within DenizBank Financial Services Group since 2002.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchChennai, IndiaHQ recorded Sep 27, 20261,001-5,0001,560 contacts →

Exact match

“Fintech happens here!”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchSandy, UT, United StatesHQ recorded Sep 27, 20261,001-5,000981 contacts →

Exact match

“Galileo, SoFi's Tech Platform, is a financial technology company that enables fintechs, banks, emerging and established brands to build differentiated financial solutions that…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchLondon, United KingdomHQ recorded Sep 27, 2026501-1,000758 contacts →

Exact match

“Build Bold.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchLondon, United KingdomHQ recorded Sep 27, 2026501-1,000661 contacts →

Exact match

“Leading brands – from fintechs and banks to digital asset platforms and large-scale corporates – use our API to benefit from our fully regulated banking infrastructure and…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchJakarta, IndonesiaHQ recorded Sep 27, 2026201-500504 contacts →

Exact match

“PT.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Sep 27, 2026501-1,000494 contacts →

Exact match

“PPRO is a fintech company that provides digital payment solutions to businesses and banks so that they can scale their local payment services through one connection.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchNew Delhi, IndiaHQ recorded Sep 27, 2026201-500459 contacts →

Exact match

“Transcorp International Limited is a 30-year-old, BSE-listed and RBI-regulated financial services company licensed for Prepaid Payment Instruments (wallets/cards) and as an…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchKuala Lumpur, MalaysiaHQ recorded Sep 27, 2026501-1,000428 contacts →

Exact match

“We’re a tech powerhouse with 500+ talents, serving over 100 banks, financial institutions, and fintechs across 10 ASEAN cities.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchTsentralny District, United KingdomHQ recorded Sep 27, 20261,001-5,000422 contacts →

Exact match

“OTR is a group of IT consultancy & software development companies founded in We have over 20 years of FinTech experience working with international banks, financial services…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchAtlanta, GA, United StatesHQ recorded Sep 27, 202651-200402 contacts →

Exact match

“Founded in 2018, Bakkt, Inc.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchBarueri, BrazilHQ recorded Sep 27, 2026201-500400 contacts →

Exact match

“Celcoin is a pioneer in financial and banking technology infrastructure.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchIstanbul, TürkiyeHQ recorded Sep 27, 2026201-500381 contacts →

Exact match

“GTech stands as a pioneering technology enterprise, delivering value-added services and solutions within the realm of digital transformation processes.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchThane, IndiaHQ recorded Sep 27, 2026201-500377 contacts →

Exact match

“Established in 2013, NPST, a Make in India company, is one of India’s leading fintech firms, listed on the NSE and BSE Exchange.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchMilan, ItalyHQ recorded Sep 27, 2026201-500367 contacts →

Exact match

“Since 2018, Fabrick has served as a focal point for continuous innovation for its clients, including banks, institutions, corporations, and startups.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchGilbert, AZ, United StatesHQ recorded Sep 27, 2026501-1,000355 contacts →

Exact match

“Kinective is leading the way to Intelligent Banking.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchBiella, ItalyHQ recorded Sep 27, 20261,001-5,000351 contacts →

Exact match

“We enable banks and fintechs to innovate thanks to our proven open banking system, that is easy to integrate, customize and minimizes time to market.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchDubai, United Arab EmiratesHQ recorded Sep 27, 2026201-500348 contacts →

Exact match

“B2BROKER is a global fintech solutions provider for financial institutions.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchNew York, NY, United StatesHQ recorded Sep 27, 2026201-500339 contacts →

Exact match

“DriveWealth is a global B2B financial technology platform.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchMumbai, IndiaHQ recorded Sep 27, 2026201-500330 contacts →

Exact match

“Knight FinTech is a new age banking technology company that provides full-stack banking tech solutions in the domain of Co-lending, Lending and Treasury.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 1,419 api integration specialists fintech companies worldwide

See the full list, filter by size, metro and specialty, and access 38,824 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Api integration specialists fintech companies worldwide at a glance

As of Sep 27, 2026
38.9%Verified-email coverage
70.3Average contacts per company
11-50Median size (employees)
7.7%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
484
11-50
595
51-200
250
201-500
55
501-1,000
17
1,001-5,000
12
5,001-10,000
2
10001+
3

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 api integration specialists fintech companies are linked below.
What qualifies
Company records worldwide whose business descriptions match “api integration specialists fintech 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 38,824 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 September 27, 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.

Api integration specialists fintech companies by location

8 lists · largest first

Every Api integration specialists fintech 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 “api integration specialists fintech companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many api integration specialists fintech companies are there worldwide?

RevenueBase identified 1,419 company matches for api integration specialists fintech companies worldwide as of September 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?

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

Which country has the most api integration specialists fintech companies?

The United States leads with 197 companies, followed by India (162) and the United Kingdom (141). Every api integration specialists fintech companies list by country and city is linked on this page.

Which city has the most api integration specialists fintech companies?

London leads with 109 company records, followed by Sao Paulo (27) and Singapore (26).

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 38,824 professional contacts with verified work emails tracked across these 1,419 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 September 27, 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.