Company lists · Data refreshed September 2026

Top 23 Know your customer software companies based in the United States

RevenueBase identified 330 know your customer software companies headquartered in the United States as of September 2026 and tracks 24,557 professional contacts across them, including 11,971 with verified work emails and 6,589 with mobile numbers. New York is the largest hub.

This list covers know your customer software companies 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, how directly it supports the match, and when it was last checked. Data refreshed September 4, 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 HQ checked on every row Match evidence on every row Refreshed Sep 4, 2026 86% judged on-target in blind review
330Companies
24,557Contacts tracked
11,971Verified emails
6,589Mobile numbers
Unlock all 330 companies Free signup · no credit card · 500 free credits

The 23 largest know your customer software companies based in the United States

Ranked by team size
Top 23 of 330 know your customer software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 4, 2026. Evidence rates how directly each company's own description names know your customer software companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#CompanyHeadquartersEmployeesContacts
1
First AdvantageStrong evidence
Atlanta, GA, United StatesHQ checked Sep 4, 20265,001-10,0004,969

“Our Brand Promise Know your people™ In a world shaped by digital transformation, AI, remote work, regulatory complexity, and rising risk, identity is no longer static.”

Source: company website · checked Sep 4, 2026
2
CLEARIndirect evidence
New York, DC, United StatesHQ checked Sep 4, 20261,001-5,0002,128

“CLEAR is a security identity company making experiences safer and easier-physically and digitally.”

Source: company website · checked Sep 4, 2026
3
Nice ActimizeIndirect evidence
Hoboken, NJ, United StatesHQ checked Sep 4, 2026501-1,0001,458

“NICE Actimize is the largest and broadest provider of financial crime, risk and compliance solutions for regional and global financial institutions, as well as government…”

Source: company website · checked Sep 4, 2026
4
id.meIndirect evidence
Mclean, VA, United StatesHQ checked Sep 4, 20261,001-5,000957

“ID.me is the next-generation digital identity wallet that simplifies how individuals securely prove their identity online.”

Source: company website · checked Sep 4, 2026
5
Mitek SystemsIndirect evidence
San Diego, CA, United StatesHQ checked Sep 4, 2026501-1,000909

“Mitek protects what’s real across digital interactions in a world of evolving threats.”

Source: company website · checked Sep 4, 2026
6
Accertify, INCIndirect evidence
Itasca, IL, United StatesHQ checked Sep 4, 20261,001-5,000785

“Accertify enables commerce by doing one thing extraordinarily well: pinpointing fraud.”

Source: company website · checked Sep 4, 2026
7
TelesignIndirect evidence
Marina Del Rey, CA, United StatesHQ checked Sep 4, 2026501-1,000568

“Telesign, a part of the Proximus Group, provides Continuous Trust™ to leading global enterprises by connecting, protecting, and defending their digital identities.”

Source: company website · checked Sep 4, 2026
8
PersonaIndirect evidence
San Francisco, CA, United StatesHQ checked Sep 4, 2026501-1,000534

“Persona helps businesses manage KYC/AML/KYB programs, fight fraud, and build trust by automating any identity-related use case with our flexible identity infrastructure.”

Source: company website · checked Sep 4, 2026
9
SocureIndirect evidence
Incline Village, NV, United StatesHQ checked Sep 4, 2026501-1,000488

“Socure is the leading platform for digital identity verification, compliance and fraud prevention solutions, trusted by the largest enterprises and government agencies to build…”

Source: company website · checked Sep 4, 2026
10
SignzyIndirect evidence
New York City, IL, United StatesHQ checked Sep 4, 2026201-500451

“At Signzy, we’re solving for lasting first impressions and seamless new beginnings.”

Source: company website · checked Sep 4, 2026
11
PROOFIndirect evidence
Boston, MA, United StatesHQ checked Sep 4, 2026201-500413

“Proof makes trust possible in a digital world.”

Source: company website · checked Sep 4, 2026
12
PROVEIndirect evidence
New York, NY, United StatesHQ checked Sep 4, 2026201-500408

“Prove modernizes how digital trust is established and maintained throughout the digital consumer journey, providing unparalleled accuracy in identity verification and…”

Source: company website · checked Sep 4, 2026
13
SEONIndirect evidence
Austin, TX, United StatesHQ checked Sep 4, 2026201-500387

“SEON is the AI command center for fraud prevention and AML compliance, empowering thousands of companies worldwide to stop fraud without slowing growth.”

Source: company website · checked Sep 4, 2026
14
ALLOYPartial evidence
New York, NY, United StatesHQ checked Sep 4, 2026201-500381

“Automate smarter risk decisions across the customer lifecycle with Alloy, the AI-powered identity and fraud prevention platform that accelerates onboarding, stops fraud, and…”

Source: company website · checked Sep 4, 2026
15
PindropIndirect evidence
Atlanta, GA, United StatesHQ checked Sep 4, 2026201-500336

“Pindrop is the Real Human + Right Human® Platform for the AI era.”

Source: company website · checked Sep 4, 2026
16
Idemia North AmericaIndirect evidence
Reston, VA, United StatesHQ checked Sep 4, 20261,001-5,000308

“As our world becomes increasingly digitally connected, personal identity and security only become more important.”

Source: company website · checked Sep 4, 2026
17
XactusIndirect evidence
Broomall, MD, United StatesHQ checked Sep 4, 2026501-1,000280

“Xactus – a leading fintech specializing in verification solutions for the mortgage and financial services industries – leverages advanced technology and industry expertise to…”

Source: company website · checked Sep 4, 2026
18
MetamapPartial evidence
San Francisco, United StatesHQ checked Sep 4, 2026201-500235

“MetaMap is a customer identity platform that helps merchants discover untapped potential by customizing to any data or work stream need.”

Source: company website · checked Sep 4, 2026
19
IncogniaIndirect evidence
Palo Alto, NY, United StatesHQ checked Sep 4, 202651-200231

“Incognia is the innovator of next-generation identity solutions that enable secure and seamless digital experiences.”

Source: company website · checked Sep 4, 2026
20
Verificient TechnologiesIndirect evidence
New York, United StatesHQ checked Sep 4, 2026201-500221

“At Verificient Technologies, we utilize artificial intelligence, machine learning, computer visioning and biometrics in forming our Trusted Identity-as-a-Service (TIaaS),a…”

Source: company website · checked Sep 4, 2026
21
Aware, INCIndirect evidence
Burlington, MA, United StatesHQ checked Sep 4, 202651-200205

“Aware, Inc.(NASDAQ: AWRE) is a proven global leader in biometric identity and authentication solutions.”

Source: company website · checked Sep 4, 2026
22
Kount, An Equifax CompanyPartial evidence
Boise, ID, United StatesHQ checked Sep 4, 202651-200188

Your business has unlimited growth potential.”

Source: company website · checked Sep 4, 2026
23
MicrobiltIndirect evidence
Kennesaw, GA, United StatesHQ checked Sep 4, 202651-200174

“Welcome to MicroBilt, a leading innovator in alternative credit data and risk management solutions for over 40 years.”

Source: company website · checked Sep 4, 2026

Showing 23 of 330 know your customer software companies based in the United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 11,971 reachable decision-makers.

Free signup · no credit card

See all 330 companies

Know your customer software companies based in the United States at a glance

As of Sep 4, 2026
11-50Median size (employees)
New YorkLargest hub · 37 HQs
6,589Contacts with mobile numbers
Sep 4, 2026Data refreshed

Companies by employee count

1-10
105
11-50
136
51-200
59
201-500
17
501-1,000
8
1,001-5,000
4
5,001-10,000
1

Verified emails by last verification

0–30
0
31–60
1,083
61–90
6,416
90–180
4,427
180+
45

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 know your customer software companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, 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 “know your customer software companies”. Matching reads each company's description, not its industry code or its name.
What we exclude
Companies whose own description does not clearly place them among know your customer software companies, 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 an evidence 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, 11,971 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 4, 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.

Know your customer software companies by metro

  • Know your customer software companies in New York37

Frequently asked

How many know your customer software companies are there based in the United States?

RevenueBase identified 330 know your customer software companies 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?

First Advantage, headquartered in Atlanta, tops this list with the largest team on record.

Which city has the most know your customer software companies?

New York leads with 37 headquartered companies, followed by San Francisco (21) and Austin (10).

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 11,971 verified decision-maker contacts tracked across these 330 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 4, 2026.

Ready to reach these companies? Verified emails and direct dials for all 330 know your customer software companies based in the United States. Start with a free account, no credit card.

Get the full list

Related lists

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.