Company lists · Data refreshed September 2026
Top 25 Website visitor identification tools worldwide
RevenueBase identified 273 website visitor identification tools worldwide as of September 2026 and tracks 5,978 professional contacts across them, including 2,857 with verified work emails and 0 with mobile numbers. The United States is the largest market and London the largest hub.
This list covers website visitor identification tools worldwide, 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 14, 2026. Country and city lists for website visitor identification tools follow the table.
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.
The 25 largest website visitor identification tools worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 651 contacts → | ||||
Strong evidence “Lead Forensics is the software that reveals the identity of your anonymous website visitors, turning them into actionable sales-ready leads in real-time, at your fingertips.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 2 | 513 contacts → | ||||
Indirect evidence “Fullstory’s behavioral data platform helps technology leaders make better, more informed decisions.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| Try free | |||||
Not rated “RevenueBase is a B2B contact data platform. This directory is built from its company graph.” | |||||
| 3 | 456 contacts → | ||||
Indirect evidence “Quantum Metric is the customer-centered digital analytics platform for today’s leading organizations.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 4 | 404 contacts → | ||||
Partial evidence “Conviva transforms every digital interaction, across apps, websites, and AI agents, into outcome-based intelligence that reveals how experiences truly perform and drive results.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 5 | 273 contacts → | ||||
Partial evidence “Bluecore’s retail shopper identification and customer movement technology quickly generates incremental revenue for enterprise brands by turning more anonymous shoppers into known…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 6 | 172 contacts → | ||||
Indirect evidence “Dealfront announced it will unify under the Leadfeeder brand, repositioning the company as a lead generation platform built around the B2B marketer’s most strategic asset: the…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 7 | 104 contacts → | ||||
Indirect evidence “Stape delivers cleaner data through server-side tracking to fuel marketing growth.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 8 | 82 contacts → | ||||
Partial evidence “UXCam is a product analytics platform with integrated AI analyst, for mobile apps and websites.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 9 | 78 contacts → | ||||
Indirect evidence “Omniture, Inc.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 10 | 59 contacts → | ||||
Partial evidence “Make the Most of Every Visitor!” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 11 | 53 contacts → | ||||
Partial evidence “Leadfeeder turns the B2B website into the most reliable source of lead generation-so marketers can drive more qualified traffic, identify demand as it happens, prove campaign…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 12 | 52 contacts → | ||||
Partial evidence “Fanplayr is a global leader in eCommerce and websites behavioral data, using machine learning and AI to enable businesses to increase conversion rates and revenue, collect more…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 13 | 52 contacts → | ||||
Indirect evidence “Notifyvisitors is customer engagement and conversion optimization software and includes.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 14 | 47 contacts → | ||||
Partial evidence “Zartico is a technology company that delivers the clearest view of visitor behavior for the tourism industry.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 15 | 47 contacts → | ||||
Indirect evidence “Simple analytics that tracks human behavior to increase revenue Behavioral analytics and segmentation all in one place.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 16 | 43 contacts → | ||||
Partial evidence “Identify and convert every engaged visitor: Get the email, physical address, and device data for real-time retargeting.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 17 | 41 contacts → | ||||
Indirect evidence “Countly is a first-party digital analytics and customer engagement platform that gives organizations complete ownership of their data and product intelligence - across every…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 18 | 38 contacts → | ||||
Indirect evidence “ShareThis, a Predactiv Company has unlocked the power of global digital behavior by synthesizing social share, interest, and intent data since 2007.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 19 | 37 contacts → | ||||
Partial evidence “Never let a dead-end button sink conversion rates, lose visitors to slow page loads, or miss metrics that matter.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 20 | 34 contacts → | ||||
Partial evidence “The world's first agentic website.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 21 | 29 contacts → | ||||
Partial evidence “Ariadne is a high-tech company with a global presence, which provides physical organizations with comprehensive and detailed real-time customer and visitor analysis for the…” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 22 | 28 contacts → | ||||
Indirect evidence “Brenton Way is a digital marketing agency based in Los Angeles that uses data & user behavior to drive traffic.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 23 | 26 contacts → | ||||
Partial evidence “Uncover the hidden value of your anonymous visitors with our disruptive Cookie-agnostic AI that is proven with 300 million+ sessions every year.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 24 | 25 contacts → | ||||
Partial evidence “The Website Intelligence Platform.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
| 25 | 23 contacts → | ||||
Partial evidence “TargetClose is a website development and analytics agency.” Source: RevenueBase Database · checked Sep 14, 2026Thanks. The Data Team will review it. | |||||
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: website visitor identification tools. 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 website visitor identification tools.
- Partial evidence
- Its own public description names part of website visitor identification tools, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name website visitor identification tools. 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 273 website visitor identification tools worldwide
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Website visitor identification tools worldwide at a glance
As of Sep 14, 2026Companies by employee count
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 website visitor identification tools, 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.
- Coverage
- 4 countries, largest first: the United States, the United Kingdom, India, Germany. Country and city lists for website visitor identification tools are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “website visitor identification tools”. 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 website visitor identification tools), 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 website visitor identification tools, and records with no verified work email.
- 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, 2,857 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 14, 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.
Website visitor identification tools by location
4 lists · largest firstEvery Website visitor identification tools list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
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 website visitor identification tools, 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 website visitor identification tools are there worldwide?
RevenueBase identified 273 website visitor identification tools worldwide 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?
Lead Forensics, headquartered in London, tops this list with the largest team on record.
Which country has the most website visitor identification tools?
The United States leads with 153 companies, followed by the United Kingdom (54) and India (36). Every website visitor identification tools list by country and city is linked on this page.
Which city has the most website visitor identification tools?
London leads with 20 headquartered companies, followed by San Francisco (12) and New York (9).
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 2,857 verified decision-maker contacts tracked across these 273 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 14, 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.