Company lists · Data refreshed September 2026
Top 25 Api integration specialists fintech companies worldwide
RevenueBase identified 1,419 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 api integration specialists fintech companies worldwide, 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 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 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.
The 25 largest api integration specialists fintech companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 38,885 contacts → | ||||
Indirect evidence “Unlocking financial technology.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 2 | 7,843 contacts → | ||||
Indirect evidence “Intellect Design Arena Ltd is a global leader in enterprise-grade financial technology, delivering composable and intelligent solutions to forward-looking financial institutions…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 3 | 6,759 contacts → | ||||
Indirect evidence “Jack Henry (Nasdaq: JKHY) is a well-rounded financial technology company that strengthens the connections between people and their financial institutions through technology and…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 4 | 2,968 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 5 | 2,075 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 6 | 1,797 contacts → | ||||
Indirect evidence “Founded in 1987 to provide Information Technology services to the finance sector, Intertech has been operating within DenizBank Financial Services Group since 2002.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,560 contacts → | ||||
Partial evidence “Fintech happens here!” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 8 | 981 contacts → | ||||
Partial evidence “Galileo, SoFi's Tech Platform, is a financial technology company that enables fintechs, banks, emerging and established brands to build differentiated financial solutions that…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 9 | 758 contacts → | ||||
Indirect evidence “Build Bold.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 10 | 661 contacts → | ||||
Strong evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 11 | 504 contacts → | ||||
Indirect evidence “PT.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 12 | 494 contacts → | ||||
Partial evidence “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.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 13 | 459 contacts → | ||||
Indirect evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 14 | 428 contacts → | ||||
Partial evidence “We’re a tech powerhouse with 500+ talents, serving over 100 banks, financial institutions, and fintechs across 10 ASEAN cities.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 15 | 422 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 16 | 402 contacts → | ||||
Indirect evidence “Founded in 2018, Bakkt, Inc.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 17 | 400 contacts → | ||||
Indirect evidence “Celcoin is a pioneer in financial and banking technology infrastructure.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 18 | 381 contacts → | ||||
Indirect evidence “GTech stands as a pioneering technology enterprise, delivering value-added services and solutions within the realm of digital transformation processes.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 19 | 377 contacts → | ||||
Partial evidence “Established in 2013, NPST, a Make in India company, is one of India’s leading fintech firms, listed on the NSE and BSE Exchange.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 20 | 367 contacts → | ||||
Indirect evidence “Since 2018, Fabrick has served as a focal point for continuous innovation for its clients, including banks, institutions, corporations, and startups.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 21 | 355 contacts → | ||||
Indirect evidence “Kinective is leading the way to Intelligent Banking.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 22 | 351 contacts → | ||||
Partial evidence “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.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 23 | 348 contacts → | ||||
Partial evidence “B2BROKER is a global fintech solutions provider for financial institutions.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 24 | 339 contacts → | ||||
Indirect evidence “DriveWealth is a global B2B financial technology platform.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
| 25 | 330 contacts → | ||||
Partial evidence “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.” Source: RevenueBase Database · checked Sep 27, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: api integration specialists fintech companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names api integration specialists fintech companies.
- Partial evidence
- Its own public description names part of api integration specialists fintech companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name api integration specialists fintech companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 1,419 api integration specialists fintech companies worldwide
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Api integration specialists fintech companies worldwide at a glance
As of Sep 27, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 api integration specialists fintech 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.
- Coverage
- Every country. Country and city lists for api integration specialists fintech companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “api integration specialists fintech 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 api integration specialists fintech 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 api integration specialists fintech companies, and records with no verified work email.
- 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, 38,824 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 27, 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.
Api integration specialists fintech companies by location
8 lists · largest firstEvery 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
- Api integration specialists fintech companies based in the United States197
- Api integration specialists fintech companies based in India162
- Api integration specialists fintech companies based in the United Kingdom141
- Api integration specialists fintech companies based in Brazil58
- Api integration specialists fintech companies based in the United Arab Emirates36
- Api integration specialists fintech companies based in Türkiye28
- Api integration specialists fintech companies based in Australia25
- Api integration specialists fintech companies based in Germany25
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 api integration specialists fintech 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 api integration specialists fintech companies are there worldwide?
RevenueBase identified 1,419 api integration specialists fintech companies worldwide 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 Jacksonville, tops this list with the largest team on record.
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 headquartered companies, 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 the top results, verified emails and direct dials included. Upgrading unlocks all 38,824 verified decision-maker contacts tracked across these 1,419 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 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 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.