Company lists · Data refreshed September 2026

Top 25 Fintech app development services based in the United States

Name: Fintech app development services based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 477 companies tracked

RevenueBase identified 477 fintech app development services headquartered in the United States as of September 2026 and tracks 61,484 professional contacts across them, including 26,719 with verified work emails. New York is the largest hub.

This list covers fintech app development services headquartered in the United States, 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 28, 2026.

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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review

477Companies

61,484Contacts tracked

26,719Verified emails

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The 25 largest fintech app development services based in the United States

Ranked by team size

Top 25 of 477 fintech app development services based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to fintech app development services: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	FIS	Indirect evidence	Jacksonville, FL, United StatesHQ checked Sep 28, 2026	10001+	38,885 contacts →
	Indirect evidence “Unlocking financial technology.” Source: RevenueBase Database · checked Sep 28, 2026
2	Jack Henry	Indirect evidence	Monett, MO, United StatesHQ checked Sep 28, 2026	5,001-10,000	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 28, 2026
3	Arcesium	Indirect evidence	New York City, NY, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,637 contacts →
	Indirect evidence “Arcesium is a global financial technology company delivering front-to-back technology solutions for some of the world’s most sophisticated financial institutions, including hedge…” Source: RevenueBase Database · checked Sep 28, 2026
4	Moneylion	Partial evidence	New York, NY, United StatesHQ checked Sep 28, 2026	501-1,000	553 contacts →
	Partial evidence “MoneyLion (part of Gen) is a leader in financial technology, powering the next generation of personalized products and content, with a top consumer finance super app, a premier…” Source: RevenueBase Database · checked Sep 28, 2026
5	BAKKT	Indirect evidence	Atlanta, GA, United StatesHQ checked Sep 28, 2026	51-200	402 contacts →
	Indirect evidence “Founded in 2018, Bakkt, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
6	Subsplash	Partial evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	201-500	330 contacts →
	Partial evidence “Subsplash is an innovation leader in Fintech and mobile SaaS.” Source: RevenueBase Database · checked Sep 28, 2026
7	Pharos Production	Indirect evidence	Las Vegas, NV, United StatesHQ checked Sep 28, 2026	n/a	273 contacts →
	Indirect evidence “Pharos Production Inc.” Source: RevenueBase Database · checked Sep 28, 2026
8	Kunai, Part Of The PWC Network	Indirect evidence	San Ramon, CA, United StatesHQ checked Sep 28, 2026	201-500	263 contacts →
	Indirect evidence “Kunai is now part of the PwC network: - Kunai was born from experience.” Source: RevenueBase Database · checked Sep 28, 2026
9	Access Softek	Indirect evidence	Berkeley, CA, United StatesHQ checked Sep 28, 2026	201-500	262 contacts →
	Indirect evidence “Access Softek’s innovative financial software solutions keep 400+ credit unions and banks ahead of the technological curve.” Source: RevenueBase Database · checked Sep 28, 2026
10	Lab49	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	231 contacts →
	Indirect evidence “Lab49 is a specialist consultancy that designs and develops bespoke and innovative technology solutions in partnership with key participants in financial markets.” Source: RevenueBase Database · checked Sep 28, 2026
11	Ionixx Technologies	Indirect evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	201-500	206 contacts →
	Indirect evidence “Ionixx Technologies is a boutique technology partner helping financial institutions maximize ROI from large Investment Management platforms (Charles River IMS, Blackrock's…” Source: RevenueBase Database · checked Sep 28, 2026
12	Finxact	Indirect evidence	Jacksonville, FL, United StatesHQ checked Sep 28, 2026	51-200	190 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
13	Datazoic INC	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	51-200	183 contacts →
	Indirect evidence “Datazoic is an AI-native product suite built for sell-side Capital Markets.” Source: RevenueBase Database · checked Sep 28, 2026
14	28stone	Indirect evidence	New York, NY, United StatesHQ checked Sep 28, 2026	201-500	167 contacts →
	Indirect evidence “28Stone was founded in 2011 to deliver software that brings out the best in every client we serve.” Source: RevenueBase Database · checked Sep 28, 2026
15	Investview, INC	Indirect evidence	Haverford, PA, United StatesHQ checked Sep 28, 2026	n/a	164 contacts →
	Indirect evidence “Investview Inc.” Source: RevenueBase Database · checked Sep 28, 2026
16	Praxent	Indirect evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	201-500	156 contacts →
	Indirect evidence “Praxent is an award-winning AI-native services firm built on 25+ years of financial services experience.” Source: RevenueBase Database · checked Sep 28, 2026
17	MBANQ	Indirect evidence	Naples, FL, United StatesHQ checked Sep 28, 2026	51-200	143 contacts →
	Indirect evidence “Founded in 2016, Mbanq stands as a pioneering force in the digital finance industry.” Source: RevenueBase Database · checked Sep 28, 2026
18	Dashdevs LLC	Partial evidence	Wilmington, DE, United StatesHQ checked Sep 28, 2026	51-200	128 contacts →
	Partial evidence “We are a fintech product engineering partner trusted by leading banks and financial innovators-including NatWest, RAKBANK, TBI Bank, Tarabut, Dozens, and Veriff-to design, build…” Source: RevenueBase Database · checked Sep 28, 2026
19	Truenorth	Partial evidence	New York City, NY, United StatesHQ checked Sep 28, 2026	51-200	120 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 28, 2026
20	Omnicommander	Indirect evidence	Miramar Beach, FL, United StatesHQ checked Sep 28, 2026	51-200	106 contacts →
	Indirect evidence “OMNICOMMANDER is a veteran-owned and operated financial technology, digital marketing, and cybersecurity company that provides a comprehensive suite of digital solutions for…” Source: RevenueBase Database · checked Sep 28, 2026
21	Go-Live Faster	Partial evidence	Wilmington, DE, United StatesHQ checked Sep 28, 2026	51-200	95 contacts →
	Partial evidence “Go-Live Faster is a global fintech solutions firm dedicated to accelerating business transformation for financial institutions by over 40%.” Source: RevenueBase Database · checked Sep 28, 2026
22	Affinipay	Indirect evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	201-500	95 contacts →
	Indirect evidence “At AffiniPay, we’re continuously tackling exciting and interesting problems to define the direction of the financial technology industry and transform the way professionals work.” Source: RevenueBase Database · checked Sep 28, 2026
23	Insart	Partial evidence	Boca Raton, FL, United StatesHQ checked Sep 28, 2026	51-200	93 contacts →
	Partial evidence “INSART is a Fintech Business Accelerator.” Source: RevenueBase Database · checked Sep 28, 2026
24	Ladonware	Indirect evidence	Boca Raton, FL, United StatesHQ checked Sep 28, 2026	51-200	90 contacts →
	Indirect evidence “Ladonware is a next generation cloud native suite of applications led by industry veterans who have built some of the most recognized brands in financial technology.” Source: RevenueBase Database · checked Sep 28, 2026
25	Strategic Link Consulting	Partial evidence	Kennesaw, GA, United StatesHQ checked Sep 28, 2026	51-200	81 contacts →
	Partial evidence “Strategic Link is a fintech innovator that responds rapidly to technological and economic trends with back-end solutions that maximize clients’ returns.” Source: RevenueBase Database · checked Sep 28, 2026

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: fintech app development services. 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 fintech app development services.
Partial evidence: Its own public description names part of fintech app development services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name fintech app development services. 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 477 fintech app development services based in the United States

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Fintech app development services based in the United States at a glance

As of Sep 28, 2026

43.5%Verified-email coverage

128.9Average contacts per company

11-50Median size (employees)

13.4%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

207

11-50

169

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 477 companies.

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 fintech app development services, 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.
What qualifies: Companies headquartered in the United States whose own description of what they do matches “fintech app development services”. 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 fintech app development services), 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 fintech app development services, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and 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, 26,719 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 28, 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.

Fintech app development services by metro

Fintech app development services in New York64

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 fintech app development services, 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 fintech app development services are there based in the United States?

RevenueBase identified 477 fintech app development services headquartered in the United States 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 city has the most fintech app development services?

New York leads with 64 headquartered companies, followed by San Francisco (23) and Miami (20).

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 26,719 verified decision-maker contacts tracked across these 477 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 28, 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.