6sense vs Clearbit: What Actually Changed and Which One Fits Your Team
Clearbit isn't Clearbit anymore. HubSpot acquired it in late 2023, rebranded the whole thing as Breeze Intelligence at INBOUND 2024, and then sunset every free tool that made Clearbit popular - the free platform, Weekly Visitor Report, TAM Calculator, and Connect all went dark on April 30, 2025. The Logo API followed on December 1, 2025. If you're still evaluating these two products based on old blog posts and comparison pages from 2023, you're comparing a tool that no longer exists.
30-Second Verdict
Pick 6sense if you're an enterprise ABM team with $50K+ in annual budget and a dedicated admin who can stomach a multi-week implementation. The intent data is genuinely useful for account prioritization - just don't expect perfect contact accuracy.
Pick Breeze Intelligence if you're already on HubSpot and need enrichment baked into your CRM without a heavy lift. Setup takes minutes. But you're locked into the HubSpot ecosystem, and credits add up fast.
What Each Tool Actually Does
6sense: Enterprise ABM and Intent
6sense is an ABM orchestration platform built around intent signals. It ingests first-party, second-party, and third-party intent data (including Bombora), identifies anonymous website visitors via web tagging, runs predictive analytics to score accounts by buying stage, and offers a Sales Intelligence Chrome extension with a free tier that includes 50 data credits per month.
The platform skews mid-market and enterprise - 52.5% of G2 reviewers are mid-market companies. It holds a 4.0/5 rating across 882 reviews. The core value proposition is identifying which accounts are in-market before they ever fill out a form, using intent signals and predictive scoring to surface buying committees early. That's powerful when it works. The catch is implementation complexity and persistent data accuracy complaints - G2's most-mentioned con is "Inaccurate Data" at 133 mentions, which tells you something about what happens when reps try to act on the signals without verifying the underlying contact records.
Clearbit: Now Breeze Intelligence
Clearbit is now a HubSpot-native enrichment add-on. Clearbit's own comparison page claims 50M+ companies and 250+ data sources, while a HubSpot spokesperson told CMSWire the platform draws from 200M+ company and buyer profiles. That discrepancy reflects different eras of the product.
On G2, Clearbit holds a 4.4/5 rating across 628 reviews, with 49.6% from small businesses. Ease-of-use scores are notably higher than 6sense's. But Clearbit's comparison page still mentions free tools - the Weekly Visitor Report, TAM Calculator, Connect - that were sunset in April 2025. If you're not on HubSpot, Breeze Intelligence simply isn't an option anymore.
Pricing Breakdown
| 6sense | Clearbit (Breeze Intelligence) | Prospeo | |
|---|---|---|---|
| Free tier | 50 credits/mo + Chrome ext | None (sunset Apr 2025) | 75 emails + 100 Chrome credits/mo |
| Entry paid | ~$50K-$80K/yr | $45/mo for 100 credits | ~$0.01/email, no contract |
| Full stack | $100K-$200K+/yr | $1,200-$4,100+/mo | Self-serve, scales with usage |
| Median contract | $58,310/yr | Depends on HubSpot tier | No contracts |
| Credit rollover | No | No (credits reset monthly) | No expiry on paid credits |
6sense pricing is custom, driven by TAM size, modules, and contract length. Vendr's dataset shows a median of $58,310/year, with a reported range from $10,621 to $137,984. Enterprise implementations can push past $300K/year.
Breeze Intelligence starts at $45/mo for 100 credits on annual billing, bundled with HubSpot's Starter Customer Platform. One credit equals one enriched record. Credits reset monthly with no rollover, and exceeding your limit can trigger automatic upgrades for the remainder of your contract. You can't downgrade mid-term. Layer in the HubSpot platform cost and total spend lands between $1,184 and $4,135 per month.
6sense's median contract is $58K/yr and 1 in 5 contact records need manual verification. Breeze Intelligence resets your credits monthly and locks you into HubSpot. Prospeo delivers 98% verified emails at ~$0.01 each with a 7-day data refresh - no platform tax, no annual contracts.
Stop paying enterprise prices for data your reps still have to verify.
Implementation and Time-to-Value
6sense requires a Primary Administrator handling user provisioning, WebTag installation, CRM/MAP/SEP integration, field mapping, SSO configuration, and credit allocation across separate modules for Revenue Marketing, Sales Intelligence, and AI Email. Based on the scope of tasks in 6sense's onboarding documentation, expect 4-12 weeks for a mid-market deployment.
Breeze Intelligence is an add-on inside HubSpot. Already running HubSpot? Activation takes minutes.
We've seen teams buy 6sense expecting quick wins and then spend two months just getting the WebTag and CRM integration right. We've also watched Breeze Intelligence credit costs catch teams off guard within the first quarter when enrichment volumes spike beyond the initial plan. Breeze wins on speed-to-value, but only if you've already made the HubSpot bet.
What Users Actually Say
The G2 comparison page tells a clear story: Clearbit scores 9.1/10 on Ease of Use versus 6sense's 7.9/10. That gap reflects the implementation difference we just described.
For 6sense, the top positive themes are Lead Generation (181 mentions) and Intent Data (178 mentions). The top negative is Inaccurate Data at 133 mentions. Reviewers cite 80-90% accuracy for contact and lead information - which means 1 in 5 to 1 in 10 records are wrong. In our testing, 6sense contact data required manual verification before running outbound sequences at any real volume. That's a real problem when your reps are supposed to be acting on intent signals quickly.
Clearbit gets praised for its UI and company-level data quality. The complaints center on post-acquisition changes: pricing complexity, lost free tools, and HubSpot lock-in. The consensus on r/sales threads tends to echo this - people liked the old Clearbit, and they're frustrated that the free tools disappeared without a comparable replacement.
Who Should Pick What
Enterprise ABM team, 50+ employees, $50K+ budget, dedicated RevOps admin - 6sense. The intent data and account scoring are genuinely differentiated. Just budget for the implementation timeline and plan to verify contact data separately.
HubSpot-centric growth team, need enrichment and form shortening, under 200 employees - Breeze Intelligence. Skip this if you're not already committed to HubSpot, though. Buying HubSpot just to get Breeze doesn't make financial sense.
Outbound-first team, any size, need verified emails and direct dials without platform tax - neither of the above. Keep reading.
When Neither Tool Fits
Let's be honest: if your real need is verified contact data for outbound sequences - not ABM orchestration or HubSpot enrichment - both 6sense and Breeze are overkill. Most outbound teams are paying platform prices for what is fundamentally a data problem (and B2B contact data decay is why it keeps happening).
Prospeo's proprietary email-finding infrastructure refreshes data every 7 days (the industry average is 6 weeks) and covers 125M+ verified mobile numbers with a 30% pickup rate. Paid plans run roughly $0.01 per email with no contracts. For teams that need accurate contact data without the platform overhead, it's the straightforward choice - and it integrates natively with HubSpot, Salesforce, Smartlead, Instantly, and more.
If you're building a deliverability-first outbound motion, pair any data source with an email verification layer and a CRM hygiene process so bad records don't keep recycling into sequences.
6sense reviewers cite 133 mentions of inaccurate data on G2. Prospeo runs every record through 5-step verification with catch-all handling, spam-trap removal, and honeypot filtering - delivering 98% email accuracy across 300M+ profiles. Intent data means nothing if the contact info bounces.
Act on intent signals with emails that actually land.
FAQ
Is Clearbit still available as a standalone product?
No. HubSpot acquired Clearbit in late 2023 and rebranded it as Breeze Intelligence - now exclusively a HubSpot add-on. All free Clearbit tools were sunset by April 2025, with the Logo API following in December 2025. You need a paid HubSpot plan to access any enrichment features.
Does 6sense have a free plan?
Yes - 50 credits per month, a Chrome extension, company and people search, and basic sales alerts. It's useful for light prospecting but limited. Paid plans start around $50K/year and scale to $200K+ for full ABM orchestration.
What's a good alternative if I just need verified emails?
Prospeo gives you 75 free emails and 100 Chrome credits per month with 98% email accuracy - no annual contract or platform commitment. For teams spending under $30K annually on data, it delivers higher accuracy than either 6sense (80-90% reported on G2) or Breeze Intelligence while costing roughly $0.01 per verified email.