Company lists · Data refreshed September 2026
Top 25 Fintech api startups worldwide
RevenueBase identified 3,638 company matches for fintech api startups worldwide as of September 2026 and tracks 383,280 professional contacts across them, including 125,271 with verified work emails. The United States is the largest market and London the largest hub.
This list covers company matches for fintech api startups 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 28, 2026. Country and city lists for fintech api startups 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.
The 25 largest fintech api startups worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 80,732 contacts → | ||||
Exact match “At American Express, we know that with the right backing, people and businesses have the power to progress in incredible ways.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 2 | 38,885 contacts → | ||||
Exact match “Unlocking financial technology.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 3 | 16,636 contacts → | ||||
Exact match “People deserve more from their money.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 4 | 13,124 contacts → | ||||
Exact match “Stripe builds programmable financial services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 5 | 10,605 contacts → | ||||
Exact match “Nu is one of the largest digital financial services platforms in the world, serving 135 million customers across Brazil, Mexico, and Colombia.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 6 | 7,843 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 28, 2026 · View company records in RevenueBase | |||||
| 7 | 6,759 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 28, 2026 · View company records in RevenueBase | |||||
| 8 | 6,608 contacts → | ||||
Exact match “First Data is now Fiserv (NASDAQ:FISV).” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 9 | 6,194 contacts → | ||||
Exact match “Since we opened our doors in 2009, the world of commerce has evolved immensely, and so has Square.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 10 | 5,233 contacts → | ||||
Exact match “Adyen (AMS: ADYEN) is the financial technology platform of choice for leading companies.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 11 | 4,303 contacts → | ||||
Exact match “The world’s leading brands trust Verifone for global payments.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 12 | 3,834 contacts → | ||||
Exact match “Moniepoint Inc.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 13 | 3,813 contacts → | ||||
Exact match “SumUp is a leading global fintech company committed to levelling the playing field for small businesses.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 14 | 3,695 contacts → | ||||
Exact match “Deluxe, a trusted payments and data company, champions business so communities thrive.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 15 | 3,175 contacts → | ||||
Exact match “Global reach, local expertise: we combine the best of both worlds to reshape the future of payments and fintech to build a world of unlimited possibilities.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 16 | 3,070 contacts → | ||||
Exact match “Payoneer is the financial technology company empowering the world’s small and medium-sized businesses to transact, do business, and grow globally.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 17 | 2,884 contacts → | ||||
Exact match “A global leader in payments processing and cross-border transactions, Euronet moves money in all the ways consumers and businesses depend upon.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 18 | 2,548 contacts → | ||||
Exact match “At Bottomline, we help businesses pay and get paid.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 19 | 2,409 contacts → | ||||
Exact match “InComm Payments is an innovative global payments technology provider.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 20 | 2,294 contacts → | ||||
Exact match “Airwallex is a leading global payments and financial platform for modern businesses, offering trusted solutions to manage everything from business account, payments, treasury, and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 21 | 2,146 contacts → | ||||
Exact match “Riverty is a FinTech company that offers a new perspective on financial solutions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 22 | 2,075 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 28, 2026 · View company records in RevenueBase | |||||
| 23 | 2,055 contacts → | ||||
Exact match “Nexi has the scale, geographical reach, and capabilities to drive the evolution of digital payments across Europe.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 24 | 2,028 contacts → | ||||
Exact match “Nuvei is building the infrastructure for every payment, everywhere.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
| 25 | 1,821 contacts → | ||||
Exact match “An award-winning global financial technology innovator powering credit, debit, prepaid, core banking, and money movement solutions, i2c unifies banking and payments in an…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “fintech api startups”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 3,638 fintech api startups worldwide
See the full list, filter by size, metro and specialty, and access 125,271 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Fintech api startups worldwide at a glance
As of Sep 28, 2026Companies by employee count
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 fintech api startups are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “fintech api startups” 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 125,271 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 28, 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.
Fintech api startups by location
35 lists · largest firstEvery Fintech api startups list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Fintech api startups based in the United States559
- Fintech api startups based in India361
- Fintech api startups based in the United Kingdom245
- Fintech api startups based in Brazil215
- Fintech api startups based in Nigeria102
- Fintech api startups based in Canada78
- Fintech api startups based in Singapore74
- Fintech api startups based in Australia73
- Fintech api startups based in Türkiye73
- Fintech api startups based in the United Arab Emirates68
- Fintech api startups based in South Africa45
- Fintech api startups based in Germany42
- Fintech api startups based in Argentina41
- Fintech api startups based in Hong Kong41
- Fintech api startups based in Cyprus34
- Fintech api startups based in Mexico32
- Fintech api startups based in France30
- Fintech api startups based in Saudi Arabia30
- Fintech api startups based in Indonesia29
- Fintech api startups based in Spain29
- Fintech api startups based in Sweden27
- Fintech api startups based in Malaysia26
- Fintech api startups based in the Netherlands25
Cities
- Fintech api startups based in London, United Kingdom185
- Fintech api startups based in Sao Paulo, Brazil87
- Fintech api startups based in Singapore, Singapore69
- Fintech api startups based in New York, United States57
- Fintech api startups based in Dubai, United Arab Emirates50
- Fintech api startups based in San Francisco, United States42
- Fintech api startups based in Noida, India34
- Fintech api startups based in Mumbai, India32
- Fintech api startups based in Toronto, Canada32
- Fintech api startups based in Sydney, Australia27
- Fintech api startups based in Bangalore, India26
- Fintech api startups based in Miami, United States25
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 “fintech api startups”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many fintech api startups are there worldwide?
RevenueBase identified 3,638 company matches for fintech api startups 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?
American Express tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most fintech api startups?
The United States leads with 559 companies, followed by India (361) and the United Kingdom (245). Every fintech api startups list by country and city is linked on this page.
Which city has the most fintech api startups?
London leads with 186 company records, followed by Sao Paulo (87) and Singapore (69).
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 125,271 professional contacts with verified work emails tracked across these 3,638 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 28, 2026.
Ready to reach these companies? Verified emails and direct dials for all 3,638 fintech api startups worldwide. Start with a free account, no credit card.
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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.
More company lists
Company intelligence · public preview
Top 25 fintech api startups worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 3,638 matching company records for fintech api startups worldwide, with 383,280 tracked contacts and 125,271 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 28, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 fintech api startups worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  American Expressamericanexpress.comHQ: New York, NY, United StatesReported employees: 10001+ | New York, NY, United States | 10001+ | Exact match | 80,732 contacts → |
“At American Express, we know that with the right backing, people and businesses have the power to progress in incredible ways.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  FISfisglobal.comHQ: Jacksonville, FL, United StatesReported employees: 10001+ | Jacksonville, FL, United States | 10001+ | Exact match | 38,885 contacts → |
“Unlocking financial technology.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Revolutrevolut.comHQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 16,636 contacts → |
“People deserve more from their money.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Stripestripe.comHQ: South San Francisco, CA, United StatesReported employees: 5,001-10,000 | South San Francisco, CA, United States | 5,001-10,000 | Exact match | 13,124 contacts → |
“Stripe builds programmable financial services.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Nubankinternational.nubank.com.brHQ: São Paulo, BrazilReported employees: 5,001-10,000 | São Paulo, Brazil | 5,001-10,000 | Exact match | 10,605 contacts → |
“Nu is one of the largest digital financial services platforms in the world, serving 135 million customers across Brazil, Mexico, and Colombia.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Intellect Design Arena LTDintellectdesign.comHQ: Chennai, IndiaReported employees: 5,001-10,000 | Chennai, India | 5,001-10,000 | Exact match | 7,843 contacts → |
“Intellect Design Arena Ltd is a global leader in enterprise-grade financial technology, delivering composable and intelligent solutions to forward-looking financial institutions…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Jack Henryjackhenry.comHQ: Monett, MO, United StatesReported employees: 5,001-10,000 | Monett, MO, United States | 5,001-10,000 | Exact match | 6,759 contacts → |
“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 description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  First Data Corporationfiserv.comHQ: Brookfield, United StatesReported employees: 10001+ | Brookfield, United States | 10001+ | Exact match | 6,608 contacts → |
“First Data is now Fiserv (NASDAQ:FISV).” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Squaresquareup.comHQ: San Francisco, AZ, United StatesReported employees: 1,001-5,000 | San Francisco, AZ, United States | 1,001-5,000 | Exact match | 6,194 contacts → |
“Since we opened our doors in 2009, the world of commerce has evolved immensely, and so has Square.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  ADYENadyen.comHQ: Amsterdam, NetherlandsReported employees: 1,001-5,000 | Amsterdam, Netherlands | 1,001-5,000 | Exact match | 5,233 contacts → |
“Adyen (AMS: ADYEN) is the financial technology platform of choice for leading companies.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Verifoneverifone.comHQ: New York, GA, United StatesReported employees: 1,001-5,000 | New York, GA, United States | 1,001-5,000 | Exact match | 4,303 contacts → |
“The world’s leading brands trust Verifone for global payments.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Moniepoint Groupmoniepoint.comHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 3,834 contacts → |
“Moniepoint Inc.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  SUMUPsumup.co.ukHQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 3,813 contacts → |
“SumUp is a leading global fintech company committed to levelling the playing field for small businesses.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Deluxedeluxe.comHQ: Minneapolis, MN, United StatesReported employees: 5,001-10,000 | Minneapolis, MN, United States | 5,001-10,000 | Exact match | 3,695 contacts → |
“Deluxe, a trusted payments and data company, champions business so communities thrive.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  PAYUpayu.comHQ: Amsterdam, NetherlandsReported employees: 1,001-5,000 | Amsterdam, Netherlands | 1,001-5,000 | Exact match | 3,175 contacts → |
“Global reach, local expertise: we combine the best of both worlds to reshape the future of payments and fintech to build a world of unlimited possibilities.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Payoneerpayoneer.comHQ: New York, NY, United StatesReported employees: 1,001-5,000 | New York, NY, United States | 1,001-5,000 | Exact match | 3,070 contacts → |
“Payoneer is the financial technology company empowering the world’s small and medium-sized businesses to transact, do business, and grow globally.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Euroneteuronet.comHQ: Leawood, KS, United StatesReported employees: 10001+ | Leawood, KS, United States | 10001+ | Exact match | 2,884 contacts → |
“A global leader in payments processing and cross-border transactions, Euronet moves money in all the ways consumers and businesses depend upon.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Bottomlinebottomline.comHQ: Portsmouth, NH, United StatesReported employees: 1,001-5,000 | Portsmouth, NH, United States | 1,001-5,000 | Exact match | 2,548 contacts → |
“At Bottomline, we help businesses pay and get paid.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Incomm Paymentsincomm.comHQ: Atlanta, GA, United StatesReported employees: 1,001-5,000 | Atlanta, GA, United States | 1,001-5,000 | Exact match | 2,409 contacts → |
“InComm Payments is an innovative global payments technology provider.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Airwallexairwallex.comHQ: Hong KongReported employees: 1,001-5,000 | Hong Kong | 1,001-5,000 | Exact match | 2,294 contacts → |
“Airwallex is a leading global payments and financial platform for modern businesses, offering trusted solutions to manage everything from business account, payments, treasury, and…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Rivertyriverty.comHQ: Baden-baden, GermanyReported employees: 5,001-10,000 | Baden-baden, Germany | 5,001-10,000 | Exact match | 2,146 contacts → |
“Riverty is a FinTech company that offers a new perspective on financial solutions.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  ZETAzeta.techHQ: San Francisco, United StatesReported employees: 1,001-5,000 | San Francisco, United States | 1,001-5,000 | Exact match | 2,075 contacts → |
“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 description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  NETSnets.euHQ: Ballerup, DenmarkReported employees: 1,001-5,000 | Ballerup, Denmark | 1,001-5,000 | Exact match | 2,055 contacts → |
“Nexi has the scale, geographical reach, and capabilities to drive the evolution of digital payments across Europe.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  NUVEInuvei.comHQ: Montréal, QC, CanadaReported employees: 1,001-5,000 | Montréal, QC, Canada | 1,001-5,000 | Exact match | 2,028 contacts → |
“Nuvei is building the infrastructure for every payment, everywhere.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  I2c INCi2cinc.comHQ: Redwood City, CA, United StatesReported employees: 1,001-5,000 | Redwood City, CA, United States | 1,001-5,000 | Exact match | 1,821 contacts → |
“An award-winning global financial technology innovator powering credit, debit, prepaid, core banking, and money movement solutions, i2c unifies banking and payments in an…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,638 company matches
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Fintech api startups: dataset insights
September 28, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
3,635 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 3,638 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 28, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Fintech api startups by location
35 lists · largest firstEvery Fintech api startups list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Fintech api startups based in the United States559
- Fintech api startups based in India361
- Fintech api startups based in the United Kingdom245
- Fintech api startups based in Brazil215
- Fintech api startups based in Nigeria102
- Fintech api startups based in Canada78
- Fintech api startups based in Singapore74
- Fintech api startups based in Australia73
- Fintech api startups based in Türkiye73
- Fintech api startups based in the United Arab Emirates68
- Fintech api startups based in South Africa45
- Fintech api startups based in Germany42
- Fintech api startups based in Argentina41
- Fintech api startups based in Hong Kong41
- Fintech api startups based in Cyprus34
- Fintech api startups based in Mexico32
- Fintech api startups based in France30
- Fintech api startups based in Saudi Arabia30
- Fintech api startups based in Indonesia29
- Fintech api startups based in Spain29
- Fintech api startups based in Sweden27
- Fintech api startups based in Malaysia26
- Fintech api startups based in the Netherlands25
Cities
- Fintech api startups based in London, United Kingdom185
- Fintech api startups based in Sao Paulo, Brazil87
- Fintech api startups based in Singapore, Singapore69
- Fintech api startups based in New York, United States57
- Fintech api startups based in Dubai, United Arab Emirates50
- Fintech api startups based in San Francisco, United States42
- Fintech api startups based in Noida, India34
- Fintech api startups based in Mumbai, India32
- Fintech api startups based in Toronto, Canada32
- Fintech api startups based in Sydney, Australia27
- Fintech api startups based in Bangalore, India26
- Fintech api startups based in Miami, United States25
Questions about this company list
What does Exact match mean for fintech api startups?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many fintech api startups did RevenueBase find worldwide?
The saved snapshot records 3,638 matching company records, 383,280 tracked contacts and 125,271 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 28, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
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Cite this list
RevenueBase Data Team. Top 25 fintech api startups worldwide. Snapshot: September 28, 2026. https://revenuebase.ai/companies/browse/fintech-api-startups.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 fintech api startups worldwide
RevenueBase records 3,638 matching company records for fintech api startups worldwide, with 383,280 tracked contacts and 125,271 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 28, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 fintech api startups worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | American Expressamericanexpress.com HQ: New York, NY, United StatesReported employees: 10001+ | New York, NY, United States | 10001+ | Exact match | 80,732 contacts → |
“At American Express, we know that with the right backing, people and businesses have the power to progress in incredible ways.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | FISfisglobal.com HQ: Jacksonville, FL, United StatesReported employees: 10001+ | Jacksonville, FL, United States | 10001+ | Exact match | 38,885 contacts → |
“Unlocking financial technology.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Revolutrevolut.com HQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 16,636 contacts → |
“People deserve more from their money.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Stripestripe.com HQ: South San Francisco, CA, United StatesReported employees: 5,001-10,000 | South San Francisco, CA, United States | 5,001-10,000 | Exact match | 13,124 contacts → |
“Stripe builds programmable financial services.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Nubankinternational.nubank.com.br HQ: São Paulo, BrazilReported employees: 5,001-10,000 | São Paulo, Brazil | 5,001-10,000 | Exact match | 10,605 contacts → |
“Nu is one of the largest digital financial services platforms in the world, serving 135 million customers across Brazil, Mexico, and Colombia.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Intellect Design Arena LTDintellectdesign.com HQ: Chennai, IndiaReported employees: 5,001-10,000 | Chennai, India | 5,001-10,000 | Exact match | 7,843 contacts → |
“Intellect Design Arena Ltd is a global leader in enterprise-grade financial technology, delivering composable and intelligent solutions to forward-looking financial institutions…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Jack Henryjackhenry.com HQ: Monett, MO, United StatesReported employees: 5,001-10,000 | Monett, MO, United States | 5,001-10,000 | Exact match | 6,759 contacts → |
“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 description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | First Data Corporationfiserv.com HQ: Brookfield, United StatesReported employees: 10001+ | Brookfield, United States | 10001+ | Exact match | 6,608 contacts → |
“First Data is now Fiserv (NASDAQ:FISV).” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Squaresquareup.com HQ: San Francisco, AZ, United StatesReported employees: 1,001-5,000 | San Francisco, AZ, United States | 1,001-5,000 | Exact match | 6,194 contacts → |
“Since we opened our doors in 2009, the world of commerce has evolved immensely, and so has Square.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | ADYENadyen.com HQ: Amsterdam, NetherlandsReported employees: 1,001-5,000 | Amsterdam, Netherlands | 1,001-5,000 | Exact match | 5,233 contacts → |
“Adyen (AMS: ADYEN) is the financial technology platform of choice for leading companies.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Verifoneverifone.com HQ: New York, GA, United StatesReported employees: 1,001-5,000 | New York, GA, United States | 1,001-5,000 | Exact match | 4,303 contacts → |
“The world’s leading brands trust Verifone for global payments.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Moniepoint Groupmoniepoint.com HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 3,834 contacts → |
“Moniepoint Inc.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | SUMUPsumup.co.uk HQ: London, United KingdomReported employees: 1,001-5,000 | London, United Kingdom | 1,001-5,000 | Exact match | 3,813 contacts → |
“SumUp is a leading global fintech company committed to levelling the playing field for small businesses.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Deluxedeluxe.com HQ: Minneapolis, MN, United StatesReported employees: 5,001-10,000 | Minneapolis, MN, United States | 5,001-10,000 | Exact match | 3,695 contacts → |
“Deluxe, a trusted payments and data company, champions business so communities thrive.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | PAYUpayu.com HQ: Amsterdam, NetherlandsReported employees: 1,001-5,000 | Amsterdam, Netherlands | 1,001-5,000 | Exact match | 3,175 contacts → |
“Global reach, local expertise: we combine the best of both worlds to reshape the future of payments and fintech to build a world of unlimited possibilities.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Payoneerpayoneer.com HQ: New York, NY, United StatesReported employees: 1,001-5,000 | New York, NY, United States | 1,001-5,000 | Exact match | 3,070 contacts → |
“Payoneer is the financial technology company empowering the world’s small and medium-sized businesses to transact, do business, and grow globally.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Euroneteuronet.com HQ: Leawood, KS, United StatesReported employees: 10001+ | Leawood, KS, United States | 10001+ | Exact match | 2,884 contacts → |
“A global leader in payments processing and cross-border transactions, Euronet moves money in all the ways consumers and businesses depend upon.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Bottomlinebottomline.com HQ: Portsmouth, NH, United StatesReported employees: 1,001-5,000 | Portsmouth, NH, United States | 1,001-5,000 | Exact match | 2,548 contacts → |
“At Bottomline, we help businesses pay and get paid.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Incomm Paymentsincomm.com HQ: Atlanta, GA, United StatesReported employees: 1,001-5,000 | Atlanta, GA, United States | 1,001-5,000 | Exact match | 2,409 contacts → |
“InComm Payments is an innovative global payments technology provider.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Airwallexairwallex.com HQ: Hong KongReported employees: 1,001-5,000 | Hong Kong | 1,001-5,000 | Exact match | 2,294 contacts → |
“Airwallex is a leading global payments and financial platform for modern businesses, offering trusted solutions to manage everything from business account, payments, treasury, and…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Rivertyriverty.com HQ: Baden-baden, GermanyReported employees: 5,001-10,000 | Baden-baden, Germany | 5,001-10,000 | Exact match | 2,146 contacts → |
“Riverty is a FinTech company that offers a new perspective on financial solutions.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | ZETAzeta.tech HQ: San Francisco, United StatesReported employees: 1,001-5,000 | San Francisco, United States | 1,001-5,000 | Exact match | 2,075 contacts → |
“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 description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | NETSnets.eu HQ: Ballerup, DenmarkReported employees: 1,001-5,000 | Ballerup, Denmark | 1,001-5,000 | Exact match | 2,055 contacts → |
“Nexi has the scale, geographical reach, and capabilities to drive the evolution of digital payments across Europe.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | NUVEInuvei.com HQ: Montréal, QC, CanadaReported employees: 1,001-5,000 | Montréal, QC, Canada | 1,001-5,000 | Exact match | 2,028 contacts → |
“Nuvei is building the infrastructure for every payment, everywhere.” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | I2c INCi2cinc.com HQ: Redwood City, CA, United StatesReported employees: 1,001-5,000 | Redwood City, CA, United States | 1,001-5,000 | Exact match | 1,821 contacts → |
“An award-winning global financial technology innovator powering credit, debit, prepaid, core banking, and money movement solutions, i2c unifies banking and payments in an…” Recorded description excerpt · September 28, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 3,638 company matches
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Fintech api startups: dataset insights
September 28, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
3,635 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 3,638 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: September 28, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Fintech api startups by location
35 lists · largest firstEvery Fintech api startups list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Fintech api startups based in the United States559
- Fintech api startups based in India361
- Fintech api startups based in the United Kingdom245
- Fintech api startups based in Brazil215
- Fintech api startups based in Nigeria102
- Fintech api startups based in Canada78
- Fintech api startups based in Singapore74
- Fintech api startups based in Australia73
- Fintech api startups based in Türkiye73
- Fintech api startups based in the United Arab Emirates68
- Fintech api startups based in South Africa45
- Fintech api startups based in Germany42
- Fintech api startups based in Argentina41
- Fintech api startups based in Hong Kong41
- Fintech api startups based in Cyprus34
- Fintech api startups based in Mexico32
- Fintech api startups based in France30
- Fintech api startups based in Saudi Arabia30
- Fintech api startups based in Indonesia29
- Fintech api startups based in Spain29
- Fintech api startups based in Sweden27
- Fintech api startups based in Malaysia26
- Fintech api startups based in the Netherlands25
Cities
- Fintech api startups based in London, United Kingdom185
- Fintech api startups based in Sao Paulo, Brazil87
- Fintech api startups based in Singapore, Singapore69
- Fintech api startups based in New York, United States57
- Fintech api startups based in Dubai, United Arab Emirates50
- Fintech api startups based in San Francisco, United States42
- Fintech api startups based in Noida, India34
- Fintech api startups based in Mumbai, India32
- Fintech api startups based in Toronto, Canada32
- Fintech api startups based in Sydney, Australia27
- Fintech api startups based in Bangalore, India26
- Fintech api startups based in Miami, United States25
Questions about this company list
What does Exact match mean for fintech api startups?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many fintech api startups did RevenueBase find worldwide?
The saved snapshot records 3,638 matching company records, 383,280 tracked contacts and 125,271 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: September 28, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
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Cite this list
RevenueBase Data Team. Top 25 fintech api startups worldwide. Snapshot: September 28, 2026. https://revenuebase.ai/companies/browse/fintech-api-startups.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗