⚡ Identity Resolution Software in the United States

Identity resolution software matches data from multiple sources to create a unified profile of a user or company across devices, websites, and platforms by linking identifiers such as email addresses, cookies, and device IDs.

The United States of America (USA) is a North American country with a population of over 341 million people.

According to our statistics, identity resolution software is used on 1.4% of websites from the United States.

Statistics based on 573K+ analyzed websites. About this data

⭐ Most Popular in 2026

The following chart shows the top identity resolution software in the United States in 2026, based on market share.

The most popular is ZoomInfo WebSights with an impressive share of 30.3%, followed by Lotame with 13.6% and Leadfeeder with 12.3%.

ZoomInfo WebSights 30.3%
Lotame 13.6%
Leadfeeder 12.3%
LiveRamp 11.9%
Epsilon 6.8%
Apollo 6.3%
Claritas 6.2%
Demandbase 4.8%
TruAudience 4.3%
ID5 4.1%
Wunderkind 3.8%
Listrak 3.6%
Lead Forensics 3.2%
Qualified 3.1%
Visitor Queue 2.1%

🚀 Highlights

Here is a list of the top solutions that is more popular in the United States than worldwide.
Differences between global and country rankings are shown in parentheses.

2. Lotame ^(-2)
5. Epsilon ^(-3)
6. Apollo ^(-1)
7. Claritas ^(-6)
8. Demandbase ^(-3)
9. TruAudience ^(-1)
11. Wunderkind ^(-1)
12. Listrak ^(-4)
14. Qualified ^(-3)
15. Visitor Queue ^(-4)

✨ Best Identity Resolution Software

Below is a more detailed list of the top 25 of the 32 identity resolution software solutions used on sites from the United States, ranked by their market share.

Rank	Name	Market share
1	ZoomInfo WebSights Vancouver, Washington, United States A B2B visitor identification platform that combines website behavioral analytics with prospecting and company intelligence data to reveal which businesses visit a website. Free$15,000+/year	30.3%
2	Lotame Columbia, Maryland, United States An end-to-end data collaboration platform that enables digital marketers to unify, analyze and activate data. $$$	13.6%
3	Leadfeeder Karlsruhe, Germany A B2B visitor identification software that tracks and identifies companies that visit your website - even if they don't leave their contact information. Free$1,188/year	12.3%
4	LiveRamp San Francisco, California, United States A data collaboration platform that provides identity resolution and data onboarding services to help organizations connect, match, and activate customer data across marketing and advertising systems. $5,000+/month	11.9%
5	Epsilon Irving, Texas, United States An enterprise marketing and advertising platform that uses AI and a proprietary identity database to deliver personalized, data-driven campaigns across digital and offline channels. $$$	6.8%
6	Apollo Covina, California, United States A sales intelligence and engagement platform designed to give sales teams and marketers the tools they need to efficiently find, engage, and convert prospects. Free$59+/month	6.3%
7	Claritas Cincinnati, Ohio, United States An omnichannel marketing and audience intelligence platform that helps organizations analyze consumer behavior and build targeted audiences for advertising and customer acquisition. $1,645+/year	6.2%
8	Demandbase San Francisco, California, United States A B2B marketing platform that combines data enrichment, account intelligence, and account-based marketing tools to help companies identify, target, and engage business accounts. $$$	4.8%
9	TruAudience Chicago, Illinois, United States A suite of solutions for privacy-first identity resolution, data enrichment, audience targeting and advanced analytics. $400,000/year	4.3%
10	ID5 London, United Kingdom An omnichannel identity platform that enables addressable advertising by helping publishers and advertisers recognize users across websites, mobile apps, and other digital properties. $$$	4.1%
11	Wunderkind New York, United States A performance marketing platform that uses identity data and AI decisioning to help brands, publishers, and advertisers recognize users and deliver personalized messages across digital channels. $$$	3.8%
12	Listrak Lititz, Pennsylvania, United States A cross-channel marketing automation platform designed for the retail industry. $$$	3.6%
13	Lead Forensics London, United Kingdom A B2B website visitor identification and lead generation platform that reveals the companies behind anonymous website traffic and converts them into actionable sales leads. $6,000+/year	3.2%
14	Qualified San Francisco, California, United States A conversational marketing platform designed to help B2B companies connect with qualified buyers in real time and engage with them instantly. $3,500+/month	3.1%
15	Visitor Queue London, Ontario, Canada A B2B online website visitor tracker that tells you the contact details of the businesses that visit your website. $39+/month	2.1%
16	Lytics Portland, Oregon, United States A customer data platform built on Google Cloud that helps companies collect, unify, and activate first-party customer data from multiple sources while maintaining control over security, privacy, and governance. Free$500+/month	1.4%
17	Warmly Houston, Texas, United States A solution that identifies individuals and businesses visiting your site and automates personalized outreach to them. $10,100+/year	1.3%
18	Customers.ai Boston, Massachusetts, United States A visitor identification and prospecting platform that provides B2C businesses and marketing agencies with tools to find and engage customers. $199+/month	1%
19	Leadinfo Capelle aan den IJssel, Netherlands A lead generation platform that identifies companies visiting a website to help B2B sales and marketing teams discover potential prospects. $107+/month	0.9%
20	Intent IQ Long Island City, New York, United States A cross-device identification service for cookieless audience activation. $$$	0.9%
21	Fingerprint Chicago, Illinois, United States A commercial browser fingerprinting solution that queries browser attributes and computes a hashed visitor identifier from them. FreeOpen source$99+/month	0.9%
⏳	Instantly.ai Sheridan, Wyoming, United States A sales engagement and lead intelligence platform that enables businesses to find prospects, automate outreach campaigns, and manage lead interactions with an integrated AI-powered CRM. $47+/month	0.6%
23	AtData Dedham, Massachusetts, United States An email address intelligence platform that provides email tools that help global marketers instantly verify, enrich and connect customer emails. $$$	0.5%
24	Cordial San Diego, California, United States An enterprise cross-channel messaging platform that supports batch and automated messaging across email, mobile, social media and SMS. $125,000+	0.3%
25	Happierleads London, United Kingdom An AI lead capture platform that identifies company and personal data and engages anonymous website visitors. Free$99+/month	0.3%

👉 See Also

🌎 Identity Resolution in other countries

🗃️ About This Data

We evaluate the popularity of technologies based on the number of websites where we detect their usage.
Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
This report is based on the analysis of 573,357 websites from the United States.
We currently track the presence of 34 identity resolution software solutions across the web.
Of these, 32 were detected on websites from the United States.
Statistics were last calculated on May 5, 2026.
For more details, see our methodology and disclaimer.