Clearbit vs FullContact, short answer: Clearbit is now HubSpot Breeze Intelligence, a B2B enrichment layer that fills in contact and company records inside a paid HubSpot subscription. FullContact is a person-centric identity-resolution platform, owned by Ziff Davis since late 2024, that unifies fragmented customer identifiers through APIs. Choose Breeze Intelligence if you run HubSpot and want complete B2B records; choose FullContact if you are building identity resolution into your own data stack.
The two get compared because both "enrich" data, but they model identity differently. Clearbit was built around the company: given a work email or domain, return firmographics and the person's role. FullContact was built around the person: take emails, phones, device and online identifiers, resolve them into one persistent profile, then append attributes. That difference drives everything else, from who buys each product to how it is priced and deployed. For a wider field of options, our FullContact alternatives guide ranks the whole category; this post is the head-to-head.
Clearbit vs FullContact at a Glance
| Dimension | Clearbit (HubSpot Breeze Intelligence) | FullContact |
|---|---|---|
| Ownership and status | Acquired by HubSpot in December 2023; sold as Breeze Intelligence; legacy free Clearbit tools sunset in 2025; not purchasable standalone | Assets acquired by Ziff Davis in Q4 2024; operates as part of J2 Martech Corp., a Ziff Davis company |
| Identity model | Company-first B2B enrichment keyed on work email and domain | Person-centered identity graph that unifies fragmented records into one persistent profile |
| Products | Data enrichment, buyer intent, form shortening inside HubSpot | Resolve, Enrich, Acumen (anonymous B2B traffic), Identity Graph, Identity Streme, and an MCP offering for AI agents |
| Primary buyers | B2B marketing, sales, and RevOps teams on HubSpot | Martech and adtech platforms, consumer brands, publishers, and data teams; B2B lead identification via Acumen |
| Deployment | Native HubSpot feature, no integration project | APIs and data delivery into your own systems |
| Inputs | Contacts: first name, last name, business email. Companies: domain. Personal emails are not enriched | Multiple identifiers (emails, phones, online and device IDs) resolved to a person |
| Published pricing | Included with eligible paid HubSpot subscriptions; data enrichment does not consume HubSpot Credits | Not published; the pricing page routes to a sales conversation |
| B2C use | Not designed for consumer data | Core strength |
| CRM fit | HubSpot only | CRM-agnostic, via API and integrations |
Sources: HubSpot knowledge base articles on data enrichment; FullContact home and pricing pages; Ziff Davis Q4 2024 acquisition announcement. Checked October 2026.
How Clearbit Works Now: Breeze Intelligence
After HubSpot's acquisition, Clearbit's data became the backbone of Breeze Intelligence. Per HubSpot's knowledge base, data enrichment is available on Starter, Professional, and Enterprise tiers of Marketing Hub, Sales Hub, Service Hub, Data Hub, Content Hub, and Smart CRM, and data enrichment does not consume HubSpot Credits. HubSpot says enrichment is powered by its commercial dataset, third-party providers, and public web data.
Default enrichment covers 14 contact properties (job title, seniority, role and sub-role, LinkedIn URL, and location among them) and roughly two dozen company properties such as annual revenue, employee range, industry, total money raised, year founded, and web technologies. Records must have a business email or a company domain; Gmail and Yahoo addresses are not enriched.
Strengths: zero integration effort, continuous refresh inside the CRM, and no separate vendor contract. Limits: it only exists inside HubSpot, it enriches records you already have rather than discovering new ones at scale, and its visitor intelligence is company-level. Our HubSpot Breeze vs Clearbit explainer covers the transition in detail, and the Clearbit enrichment alternatives guide covers non-HubSpot options.
How FullContact Works
FullContact describes itself as a privacy-safe identity resolution company. Its product line, as listed on its site in October 2026:
- Resolve: unify fragmented records into one persistent profile.
- Enrich: append attributes to known prospects and customers.
- Acumen: identify anonymous B2B traffic to reveal high-intent leads.
- Identity Graph: its person-centered graph for real-time identity resolution.
- Identity Streme: manage, obfuscate, and store first-party data.
- Model Context Protocol: deliver enrichment data to AI agents over MCP.
Strengths: a genuinely person-level identity model, B2C and B2B coverage, CRM independence, and an MCP surface for teams building their own AI agents. Limits: it is infrastructure. You get matches and attributes through APIs, and your team builds what happens next. Pricing is not published, so expect a sales-led quote shaped by volume, products, and use case.
The Identity Model Is the Real Decision
Most comparison pages stop at features. The more useful question is what your "unit of identity" is.
If your unit is the B2B account
You run account-based programs, your CRM is the system of record, and the question you ask is "what company is this, how big is it, and who is this person there?" Clearbit's model fits, provided you are on HubSpot. If you are on Salesforce, Breeze Intelligence is not available standalone, and you will need a different enrichment source.
If your unit is the person across channels
You reconcile customers across email, phone, devices, and platforms, often including consumers, and you feed those profiles into a CDP, warehouse, or ad platform. FullContact's model fits. Expect engineering work to integrate the APIs and maintain the pipelines.
If your unit is the buying committee in motion
You want to know which target accounts are active right now, which individual people are researching on your site, and you want to act on that across the site, ads, outbound, and chat without a build. Neither enrichment nor an identity API alone gets you there; this is the job of a revenue platform. See how Abmatic AI handles it.
Skip the manual work
Abmatic AI runs targets, sequences, ads, meetings, and attribution autonomously. One platform replaces 9 tools.
See the demo →Which Should You Choose?
| Your situation | Better fit |
|---|---|
| B2B team on HubSpot that wants complete, auto-refreshed records | Clearbit (Breeze Intelligence) |
| B2B team on Salesforce | FullContact or another CRM-agnostic source; Breeze is HubSpot-only |
| Consumer brand, publisher, or adtech platform resolving identities across channels | FullContact |
| Data team building an identity layer in a warehouse or CDP | FullContact |
| Team that wants identity data delivered to its own AI agents | FullContact (MCP offering), or a platform with its own MCP server |
| Marketing team that wants to identify, personalize, and engage site visitors with no build | A revenue platform such as Abmatic AI |
Migration Notes: Moving Between Them
- Leaving legacy Clearbit APIs. If you built on Clearbit's standalone APIs before the HubSpot transition, map every field you consume to a Breeze Intelligence property or to a new provider before you cut over. Fields that disappear silently are the usual source of broken lead scoring.
- Moving from FullContact to Breeze. You trade a person graph for company-first B2B enrichment. Personal emails will no longer enrich, so check what share of your records rely on them.
- Moving from Breeze to FullContact. Plan the integration work, define match keys, and decide where resolved profiles live, because FullContact will not populate your CRM UI by default the way a native feature does.
- Either way, run both side by side on a sample of a few thousand records and measure match rate and field fill rate on your own data before committing.
Our FullContact vs Abmatic AI comparison goes deeper on the platform alternative. If you would rather skip the build entirely, book an Abmatic AI walkthrough.
Where Abmatic AI Fits
Abmatic AI is the most comprehensive AI-native revenue platform on the market. It collapses the 8 to 12 point tools B2B teams usually buy separately into one platform with a shared identity graph and a shared signal layer, then acts on that identity across every channel. Instead of enrichment in one tool and an identity API in another, Abmatic AI runs 15+ first-party modules:
- Account-level deanonymization: identifies the companies behind anonymous site traffic.
- Contact-level deanonymization: identifies the individual people behind that traffic natively, the job teams otherwise buy RB2B or Vector for.
- Account list and contact list building from a first-party database, with firmographic, technographic, and intent filters.
- Technology scraper: detects a prospect's tech stack for targeting and personalization.
- First-party intent across web, LinkedIn, paid ads, and email, plus third-party intent, on the same graph.
- Web personalization and A/B testing: change the site experience by account, persona, and stage.
- Agentic Workflows: "if an identified buyer from a tier-1 account returns to pricing, enroll them in a sequence, show a tailored banner, and alert the AE in Slack."
- Agentic Outbound with signal-adaptive multichannel sequences.
- Agentic Chat and an AI SDR that know who the visitor is, then qualify, route, and book meetings.
- Advertising: native Google DSP, Google Search, LinkedIn Ads, and Meta Ads with retargeting.
- Built-in analytics for pipeline, attribution, and account journeys.
It syncs bi-directionally with Salesforce and HubSpot, integrates with Google Ads, LinkedIn Ads, Meta Ads, Slack, Gmail, Outlook, Marketo, Pardot, Snowflake, BigQuery, and Redshift, and offers a remote MCP server with read-only tools for teams connecting AI clients. Abmatic AI serves mid-market and enterprise B2B teams, scales from 50 to 50,000+ target accounts, goes live in days, and starts at $36,000 per year with enterprise tiers available.
| Capability | Breeze Intelligence | FullContact | Abmatic AI |
|---|---|---|---|
| B2B record enrichment | Core product | Enrich | Native |
| Person-level identity resolution | Business-email contacts | Core product | Native identity graph |
| Account-level deanonymization | Company-level buyer intent | Acumen | Native |
| Contact-level deanonymization | Not offered | Positioned within Acumen; confirm resolution level with FullContact | Native |
| Intent | Buyer intent topics | Behavioral insights | First-party and third-party, one graph |
| Web personalization and A/B testing | Via HubSpot content tools | Build your own | Native |
| Outbound sequences | Via HubSpot Sales Hub | Build your own | Native Agentic Outbound |
| Chat and meeting routing | Via HubSpot | Build your own | Native Agentic Chat and AI SDR |
| Advertising | Via HubSpot ads tools | Data feeds to ad platforms | Native Google DSP, Search, LinkedIn, Meta |
| AI agents and MCP | HubSpot Breeze agents | MCP offering for AI agents | Agentic Workflows, Outbound, Chat; read-only MCP server |
| CRM | HubSpot only | CRM-agnostic | Bi-directional Salesforce and HubSpot |
| Pricing | Within paid HubSpot plans | Not published | Starting at $36,000 / year |
Want identity and activation on one graph? Request an Abmatic AI demo. Teams specifically replacing Clearbit's old visitor-reveal feature should also read our Clearbit Reveal alternatives.
Frequently Asked Questions
What is the main difference between Clearbit and FullContact?
Clearbit, now HubSpot Breeze Intelligence, is company-first B2B enrichment that runs inside HubSpot. FullContact is a person-centered identity-resolution platform that unifies emails, phones, and online identifiers into one profile through APIs, and serves both B2B and consumer use cases.
Is Clearbit still a separate company?
No. HubSpot acquired Clearbit in December 2023, and its data now powers HubSpot Breeze Intelligence, available with eligible paid HubSpot subscriptions. Legacy free Clearbit tools were sunset in 2025.
Who owns FullContact?
Ziff Davis completed its acquisition of FullContact's assets in the fourth quarter of 2024. FullContact's site describes it as owned by J2 Martech Corp., a Ziff Davis company.
How much do Clearbit and FullContact cost?
Breeze Intelligence data enrichment is included with eligible Starter, Professional, and Enterprise HubSpot subscriptions and does not consume HubSpot Credits, though some Breeze features are metered by credits. FullContact does not publish pricing; its pricing page routes to sales.
Can I use Clearbit if I use Salesforce?
Not as a standalone product. Breeze Intelligence lives inside HubSpot. Salesforce teams typically use a CRM-agnostic source such as FullContact or a platform like Abmatic AI, which syncs bi-directionally with both Salesforce and HubSpot.
What is the best alternative to Clearbit and FullContact for B2B marketing?
If you want to identify accounts and individual visitors and act on them across your website, ads, outbound, and chat without an engineering build, Abmatic AI runs all of it on one identity graph. See it on your own traffic.
Bottom Line
Clearbit and FullContact solve different identity problems. Breeze Intelligence is the right call for HubSpot teams that want complete B2B records with zero setup. FullContact is the right call for teams building person-level identity resolution into their own stack. If the goal is pipeline rather than cleaner data, put identity and activation on the same graph. Book a demo with Abmatic AI.
