Company lists · Data refreshed September 2026

Top 25 Api integration specialists fintech companies based in the United States

RevenueBase identified 197 company matches for api integration specialists fintech companies associated with the United States as of September 2026 and tracks 52,493 professional contacts across them, including 24,048 with verified work emails. New York is the largest hub.

This list covers company matches for api integration specialists fintech companies associated with the United States, 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.

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
197Companies
52,493Contacts tracked
24,048Verified emails
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The 25 largest api integration specialists fintech companies based in the United States

Ranked by team size
Top 25 of 197 company matches for api integration specialists fintech companies based in the United States, 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 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
3Exact 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
4Exact 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
5Exact 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
6Exact 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
7Exact matchSan Mateo, CA, United StatesHQ recorded Sep 27, 2026201-500300 contacts →

Exact match

“Alpaca is a US-headquartered, self-clearing broker-dealer and a global leader in brokerage infrastructure APIs providing access to stocks, ETFs, options, fixed income, and crypto.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchSan Ramon, CA, United StatesHQ recorded Sep 27, 2026201-500263 contacts →

Exact match

“Kunai is now part of the PwC network: - Kunai was born from experience.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchJacksonville, FL, United StatesHQ recorded Sep 27, 202651-200190 contacts →

Exact match

“Finxact is the first enterprise-class 100 percent open API cloud-native innovation platform and transaction processing engine, agnostic to asset classes, currencies, and time…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchMiami, FL, United StatesHQ recorded Sep 27, 2026201-500161 contacts →

Exact match

“Inswitch, a TransNetwork Company, delivers embedded financial technology to help businesses scale, innovate, and streamline financial operations.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchNaples, FL, United StatesHQ recorded Sep 27, 202651-200143 contacts →

Exact match

“Founded in 2016, Mbanq stands as a pioneering force in the digital finance industry.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchSan Antonio, TX, United StatesHQ recorded Sep 27, 202651-200135 contacts →

Exact match

“SWIVEL Transactions, LLC, is a financial technology and services company providing specialized, integrated transaction enablement solutions that remove friction for account…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchSan Francisco, CA, United StatesHQ recorded Sep 27, 202651-200134 contacts →

Exact match

“Parafin’s infrastructure powers financial services for marketplaces, vertical SaaS, payment platforms, and more.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchSan Francisco, United StatesHQ recorded Sep 27, 202651-200124 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchNew York, NY, United StatesHQ recorded Sep 27, 202651-200120 contacts →

Exact match

“TrueNorth is one of the largest and most successful financial technology services companies in the world having built three fintech unicorns from scratch–Upgrade, LendingClub, and…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchBoston, MA, United StatesHQ recorded Sep 27, 202651-200116 contacts →

Exact match

“At BNT SOFT, we build the digital backbone of tomorrow’s banking and financial systems.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchMiami, FL, United StatesHQ recorded Sep 27, 202651-200105 contacts →

Exact match

“We are a Financial Technology company.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchSioux Falls, SD, United StatesHQ recorded Sep 27, 202651-20098 contacts →

Exact match

“At Central Payments, we are improving how financial services are delivered and experienced, turning bold vision into market-leading financial products.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchWilmington, DE, United StatesHQ recorded Sep 27, 202651-20095 contacts →

Exact match

“Go-Live Faster is a global fintech solutions firm dedicated to accelerating business transformation for financial institutions by over 40%.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchBoston, MA, United StatesHQ recorded Sep 27, 202651-20078 contacts →

Exact match

“Building elite fintech engineering teams shouldn’t be hard.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchEstero, FL, United StatesHQ recorded Sep 27, 202651-20074 contacts →

Exact match

“Armada Labs was established in 2002 and has since built a strong reputation for providing software development services to clients in the Fintech industry.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchMiami, FL, United StatesHQ recorded Sep 27, 202651-20074 contacts →

Exact match

“Crossmint is a one-stop-shop developer platform for building modern financial applications, from the next generation of fintechs to applications that leverage AI agent–driven…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchMercer Island, WA, United StatesHQ recorded Sep 27, 202651-20067 contacts →

Exact match

“PortX is a technology company focused on integration software for financial services.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchTinton Falls, NJ, United StatesHQ recorded Sep 27, 202651-20066 contacts →

Exact match

“Fintech Global Center is a center of excellence for all your technology needs, whether you are an established fintech firm, or an entrepreneur looking to disrupt the fintech…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchSummerlin, NV, United StatesHQ recorded Sep 27, 202651-20053 contacts →

Exact match

“Prime Trust provides financial infrastructure APIs that allow fintech and digital asset companies to innovate quickly, securely, and reliably.”

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

Showing 25 of 197 api integration specialists fintech companies based in the United States

See the full list, filter by size, metro and specialty, and access 24,048 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Api integration specialists fintech companies based in the United States at a glance

As of Sep 27, 2026
45.8%Verified-email coverage
266.5Average contacts per company
11-50Median size (employees)
9.6%Largest-city concentration · New York
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
68
11-50
70
51-200
42
201-500
9
501-1,000
2
1,001-5,000
3
5,001-10,000
1
10001+
2

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 197 companies.

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.
What qualifies
Company records associated with the United States 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. Where headquarters information is recorded, preview rows are also filtered to this page’s location. 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 24,048 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.

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 based in the United States?

RevenueBase identified 197 company matches for api integration specialists fintech companies associated with the United States 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 city has the most api integration specialists fintech companies?

New York leads with 19 company records, followed by San Francisco (13) and Miami (7).

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 24,048 professional contacts with verified work emails tracked across these 197 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.