Most B2B teams do not have an identification problem anymore. They have an action problem.
A decade ago, knowing which companies visited your site felt like a secret. Today, dozens of tools will hand you a list of visiting accounts by lunchtime. The harder question is what your team does with that list while those visitors are still on the site.
That shift is the whole point of this comparison. Visitor identification software has matured from a lookup (“who visited?”) into a workflow (“what do we do while they are still here?”). The best tool for your team depends less on raw match rate and more on fit: whether you need company-level or person-level identification, whether your bottleneck is data depth or response speed, how transparent the pricing is, and how much compliance risk you can carry.
This is a fair, scoped look at the main B2B options: Leadfeeder (formerly Dealfront), Albacross, RB2B, Clearbit by HubSpot, ZoomInfo, Leadinfo, and HeyZinc, which we build. The goal is not to crown a winner. It is to help you choose by fit, including where HeyZinc is genuinely the wrong choice.
If you have already started diagnosing why your traffic that never turns into customers is leaking, the identification layer is usually the next thing to get right.
What visitor identification software actually does
At its core, this software resolves anonymous website traffic into something you can act on. Two scopes matter, and they are not interchangeable.
Company-level identification maps a visitor’s IP address to an employer or business. You learn “someone from Acme browsed pricing for nine minutes,” not “Jane Doe at Acme did.” This is the dominant model. It is also the more privacy-defensible one, because no named individual is exposed.
Person-level identification goes further, attributing a visit to a named individual using an identity graph. It is powerful and rare, and it carries more compliance weight. In practice it is largely a US-only capability today, with explicit opt-out mechanics.
One trap to avoid: “identified” is not a standardized metric. Leadfeeder counts a unique company per month. Albacross tiers by “identified companies per month” bands. RB2B counts “resolutions.” When a vendor quotes a match rate, the denominator is theirs, not an industry standard. Treat every accuracy number as a marketing claim unless you have tested it on your own traffic.
There is also a second axis that gets blurred in most listicles: identification-plus-enrichment tools (big database, firmographics, contact reveal) versus identification-plus-action tools (alerts, live engagement, handoff). Some vendors do both. Most lean one way.
How to evaluate these tools
Before reading vendor pages, decide which of these axes actually matters to you:
- Identification scope. Company-level only, or person-level? Person-level is higher-coverage-risk and usually US-only.
- Data depth. Do you need firmographics, tech stack, intent topics, and verified contacts, or just “which company visited”?
- Action layer. Does the tool alert your team, start a conversation, or sync to a CRM, or does it stop at a list?
- Pricing transparency. Is pricing public, or contact-sales? Opaque pricing usually means enterprise sales motion.
- Compliance posture. EU-hosted and GDPR-first, or US person-data with CCPA opt-out?
- Integrations. Does it fit your CRM and Slack/Teams workflow?
- Team fit. Founder-led sales, revops, or enterprise ABM?
One more thing: vendor accuracy claims are marketing, not independently verified. “Identified” definitions differ. The fair move is to shortlist two or three, run them on your real traffic, and compare what they actually surface.
The comparison
Leadfeeder (formerly Dealfront)
Leadfeeder is the most established name in company-level visitor identification. Dealfront unified under the Leadfeeder brand, same product, same team, new name, so if you see “Dealfront” in older reviews, it is the same lineage.
What it does: reveals the B2B companies visiting your site, even when no form is filled, and pushes them to your CRM with alerts and automations.
Pricing (public, EUR, billed annually): Lite €0; Discover €79/mo; Activate €369/mo; Scale €599/mo; Enterprise custom. Monthly billing is higher. Identification itself is billed per “identified company per month”; credits are consumed only for enrichment and activation (contact reveal, CRM sync, ad campaigns).
Strengths: mature CRM integrations (HubSpot, Salesforce, Pipedrive, Zoho), unlimited users on every plan, real-time identification, EU-hosted and GDPR-compliant, a large company/contact database, display retargeting, and AI account shortlisting.
Weaknesses: identification is company-level only: no person-level reveal. Contact enrichment costs credits, and the feature set that most teams actually want (verified contacts, CRM automations, campaigns) lives on Activate and above, which is where price climbs.
Best fit: revops and marketing teams that want a database-first identification layer feeding an existing CRM. See Leadfeeder’s pricing page for current tiers.
Albacross
Albacross pairs company-level identification with built-in AI outreach, which makes it one of the more “end-to-end” options at the low end of the market.
What it does: identifies visiting companies, then runs AI-personalized email and LinkedIn sequences against them.
Pricing (public, EUR, billed yearly): Starter €59/mo (0–100 identified companies); Professional €149/mo (0–500); Organisation custom. Verified email and phone credits are sold separately (roughly €0.30 per email credit on annual plans). 14-day free trial.
Strengths: low entry price, bundled outreach (Auto-Engage), LinkedIn Ads integration, Slack/Teams plus HubSpot/Pipedrive/Salesforce integrations, GDPR-compliant.
Weaknesses: contact reveal is credit-based and separate from identification, so total cost depends on enrichment volume. The Organisation tier is opaque. Contact data strength skews European.
Best fit: small European-leaning teams that want identification and outreach in one product without stitching tools together. See Albacross pricing.
RB2B
RB2B is the notable name in person-level identification, and that distinction changes the entire conversation.
What it does: resolves website visits to named individuals (LinkedIn profiles, business emails), not just companies. Person-level identification is US-only; company-level identification is global.
Pricing (public, USD): Free $0 (150 resolutions, company-level only); Starter $79/mo (300 resolutions, LinkedIn URLs to Slack/Teams, no emails); Pro from $149/mo (business emails, all integrations); PRO+ from $199/mo (“Premium Resolution”). 7-day trial.
Accuracy posture: RB2B’s pricing page lists contact-level coverage at 15–20% on Starter/Pro and 35–45% on PRO+, with a Demandbase partnership claiming 70–80% combined resolution. These are vendor-stated figures, not independently verified, and the coverage is partial by design: person-level identification is never universal.
Strengths: rare person-level identification, generous free tier, fast setup, strong integration surface (Slack, Teams, Clay, Apollo, HubSpot, Salesforce, Zapier, webhooks).
Weaknesses: person-level is US-only and carries real compliance weight (CCPA opt-out is provided; GDPR-style jurisdictions are out of scope). There is no built-in conversation layer: you get identities, then act elsewhere.
Best fit: US-focused revenue teams that want named contacts and have the compliance posture to handle person-level data. See RB2B pricing.
Clearbit by HubSpot
Clearbit is now part of HubSpot, and that ownership shapes everything about how it fits.
What it does: uses IP intelligence to reveal the companies visiting your site (“Reveal Intent”), then enriches contact and company records with 100+ B2B attributes. It is built to live inside the HubSpot platform.
Pricing: not a standalone line item in the same way: it follows HubSpot tiers. The value compounds when your CRM, forms, and enrichment are all HubSpot.
Strengths: deep CRM-native enrichment, form shortening that lifts conversion, ICP targeting, and a very large dataset (250M+ decision-makers claimed).
Weaknesses: the value is maximized inside HubSpot; standalone reveal is being folded into the platform. Identification is company-level, not person-level. If you are not on HubSpot, much of the appeal disappears.
Best fit: teams already standardized on HubSpot that want identification and enrichment in one platform. If you are weighing the engagement-layer alternative, how HeyZinc compares to HubSpot is worth a separate look. See Clearbit by HubSpot.
ZoomInfo
ZoomInfo sits in a different category, sales intelligence platform, and its website-visitor tracking is part of broader bundles rather than a standalone self-serve product.
What it does: large contact and company database, intent data, and visitor tracking as part of its sales-intelligence and Copilot offerings.
Pricing: not public. ZoomInfo runs a contact-sales motion, and pricing depends on seats, modules, and volume.
Verification note: ZoomInfo’s public product and pricing pages returned HTTP 403 when checked for this article, so current feature and pricing claims could not be verified against the live surface. Treat any third-party summary accordingly and confirm capabilities on ZoomInfo’s site.
Strengths: enterprise-grade sales intelligence, deep contact data, intent signals, strong for large outbound orgs.
Weaknesses: opaque pricing, enterprise sales motion, heavier than what a founder-led team usually needs. Overkill if your question is simply “which companies visited today.”
Best fit: enterprise sales teams that already buy sales-intelligence bundles and want visitor tracking as one input among many.
Leadinfo (and the EU alternatives)
Leadinfo is worth naming for teams where EU hosting and GDPR posture are the deciding factor. It is a Dutch/EU visitor-identification tool with 70+ integrations, a 220M-company dataset, and a compliance-first framing. It is not as feature-broad as Leadfeeder or as outreach-focused as Albacross, but for European B2B teams it is a credible, GDPR-first alternative. Other regional tools (Visitor Queue, Lead Forensics) occupy similar niches; evaluate them on the same axes.
HeyZinc
HeyZinc is the product we build, so this section is the one to read most carefully for overclaiming.
What it does: HeyZinc is AI lead-capture software for founder-led teams. It identifies visitors in service of one thing: turning that signal into a live conversation before the visitor leaves. Visitor notifications, intent detection, an AI concierge across chat and voice, tracking links, auto-engagement, companion mobile/desktop apps, and human takeover are all built around that action loop.
Pricing (public, USD): Starter $19/mo (a limited offer; normally $39); Growth $99/mo; Enterprise custom. Intent detection and BYOK (bring your own keys) land on Growth and above. See HeyZinc’s pricing.
Where HeyZinc wins: when the bottleneck is not “we cannot identify visitors” but “we identify them and then do nothing fast enough.” If your team loses deals because a founder sees the visit in tomorrow’s report instead of while the buyer is still on pricing, that is exactly the gap HeyZinc closes. It can start conversations with visitors while they are still on the site rather than queueing them for follow-up.
Where HeyZinc is honest about not winning: HeyZinc is not a 200M+ company enrichment database. If your primary need is the largest possible firmographic and contact dataset to feed outbound lists, Leadfeeder, Clearbit/HubSpot, or ZoomInfo are stronger on that axis. Many teams will reasonably run HeyZinc as the action layer alongside a database-first tool; that is a fine, common stack, and we would rather you know it than oversell you.
Best fit: founder-led and small revenue teams whose real problem is response time on identified intent, not data volume.
A fit-based decision guide
Instead of a ranked podium, here is how to choose by bottleneck.
- If your bottleneck is acting on identified visitors in real time (founder-led sales, small team, visitors going cold), lean toward HeyZinc, optionally alongside a database tool.
- If your bottleneck is the largest enrichment database feeding an existing CRM: lean toward Leadfeeder or Clearbit by HubSpot.
- If you need person-level identification and you are US-focused: RB2B, with a real compliance review.
- If you want identification and outreach bundled cheaply, EU-friendly: Albacross, or Leadinfo for a stricter GDPR-first posture.
- If you are an enterprise sales org buying a sales-intelligence bundle: ZoomInfo, after confirming current capabilities.
The pattern: identification-plus-action tools and identification-plus-enrichment tools solve different problems. Most teams need both at some point; few need only one forever.
Accuracy, privacy, and compliance
A few things worth saying plainly.
Accuracy claims are vendor marketing. Match rates depend on each vendor’s definition of “identified,” their database, your audience, and your geographies. A 70% claim from one vendor and a 35% claim from another may not even be measuring the same thing. The only honest comparison is a side-by-side test on your own traffic.
Company-level identification is generally the more privacy-defensible model. Mapping an IP to a company, without naming a person, is what most GDPR-first vendors (Leadfeeder, Albacross, Leadinfo) build on. Person-level identification (RB2B) is higher-coverage and higher-risk; it is US-only for a reason, and it ships with CCPA opt-out for a reason.
This is not legal advice. Consent mode, cookie banners, data residency, and cross-border transfer all interact with how you can use these tools. If you operate in the EU or handle EU traffic, favor EU-hosted, GDPR-first vendors and get a real privacy review before deploying person-level tooling.
The bottom line
There is no single best visitor identification tool for B2B. There is the right tool for your bottleneck.
If you need a deep enrichment database and CRM sync, Leadfeeder and Clearbit by HubSpot are strong. If you need person-level US coverage, RB2B is the clear choice, with the compliance work that entails. If you want cheap bundled outreach in an EU-friendly package, Albacross and Leadinfo fit. If you are an enterprise buying sales intelligence, ZoomInfo belongs on your shortlist, pending your own verification.
And if your real problem is that identified visitors leave before anyone talks to them, HeyZinc exists to turn identified visitors into live conversations: chat, voice, and human takeover while intent is still hot. We will not pretend it is the biggest database. It is the fastest path from “someone visited” to “someone is talking to them.”
Choose by fit. Test on your own traffic. Keep the compliance review honest.
