Clearbit vs Seamless.AI: Data Enrichment Tool Comparison

Clearbit vs Seamless.AI: Data Enrichment Tool Comparison

One of these two cannot be bought any more. Clearbit's own site now opens by saying that Clearbit has joined HubSpot, and the enrichment capability ships inside HubSpot's Breeze Intelligence rather than as a standalone subscription. That changes what this comparison is for: it is a question about which platform to standardise on rather than which product to put in a basket.

The Quick Answer

Seamless.AI is the only one of the two a team can still sign up for on its own. Its pricing page lists a free plan of 1 user and 50 credits and routes Pro and Enterprise to sales. Clearbit is now part of HubSpot, so the practical question is whether the CRM is already HubSpot. If it is, the enrichment is already in reach and the comparison is about topping it up. If it is not, Clearbit is not a purchase decision at all.

Understanding the Core Difference

Clearbit is a B2B data enrichment platform (now Breeze Intelligence by HubSpot) with real-time enrichment and visitor identification.

Seamless.AI is an AI-powered sales lead platform with real-time contact search engine, pitch intelligence, and data enrichment for B2B prospecting.

Clearbit was built as an enrichment service that other systems called, which is exactly the shape that made it a natural acquisition for a CRM vendor. Seamless.AI is a search engine a person uses, with the intent and job change capabilities sold as add-ons. So the two differ first in who operates them: one runs quietly against records, the other is a surface a rep works in.

Pricing Comparison

No current planClearbit entry plan

Standalone product retired

FreeSeamless.AI entry plan

Free plan, 1 user and 50 credits

Clearbit Pricing

Clearbit no longer sells a standalone plan. The site now states that Clearbit has joined HubSpot, and the data capability now ships inside HubSpot's Breeze Intelligence rather than as a separate subscription. The tiers below were the last published standalone ladder, recorded in an earlier pass, and are listed for historical reference only. There is no current purchase path for them.

Source: Clearbit

Seamless.AI Pricing

The pricing page fetched for this comparison shows no rate on either paid tier. The page describes what each plan includes and routes both to a sales conversation, so the only published number on it is the 50 credit free allowance.

Source: Seamless.AI Pricing

How these figures were checked

The statement that Clearbit has joined HubSpot was read from a dated snapshot of clearbit.com taken for this comparison; the retired tier figures come from the pricing dataset behind this site and are historical rather than current. Seamless.AI's pricing page was fetched for this comparison and carries no rate for either paid tier, which is what the statement above rests on rather than an inference from silence.

Two habits sit behind those sentences and both are worth borrowing when you check a vendor price yourself. A figure belongs to a page rather than to a company, because vendors contradict themselves across their own surfaces, so the page is part of the fact. And a pricing page that renders a monthly and an annual state into the same document will hand a careless reader a rate no visitor is shown, which is why the billing basis is named beside every number above rather than left implied.

What the two cost at a realistic volume

The arithmetic below is illustrative and uses list prices, and one half of it is historical rather than current.

The retired Clearbit ladder recorded in the pricing dataset behind this site opened at $45 a month for 100 credits and ran to a Business rung at $1667 a month. Those figures are useful only as a sense of the shape, which was per record enrichment at a low unit cost with an enterprise step above it. There is no current purchase path for either rung, so no comparison rests on them.

Seamless.AI at any volume cannot be costed from its page either, since the only published number is the free tier's 50 credits. That leaves a comparison with no live figures on either side, which is unusual and worth saying plainly rather than working around.

What is actually costable is the alternative. If the CRM is HubSpot, the enrichment credits sit inside a subscription the team already pays for, and the marginal cost of trying them is zero. That is the number worth checking first.

Reading the price ladders against each other

There is no ladder to read on either side of this pair, and pretending otherwise is the mistake to avoid. Clearbit's tiers are retired and Seamless.AI's are quoted, so a spreadsheet comparison cannot be built from published pages.

What can be compared is exposure. Enrichment that lives inside a CRM subscription is a capability whose cost is already sunk and whose scope is set by that vendor's roadmap. Enrichment bought as a separate subscription is a line item that can be cancelled. Teams tend to underrate the second property until the first vendor changes what is included.

Features Breakdown

Clearbit lists

• Global data coverage
• Lead, contact, and account enrichment
• Real-time lead scoring and routing
• IP intelligence for visitor identification
• Dynamic form shortening
• Corporate hierarchy mapping
• and 2 more listed below

Seamless.AI lists

• Real-time B2B contact search engine
• Email and cell phone lookups
• Pitch intelligence
• Data enrichment
• Buyer intent data (add-on)
• Job changes tracking (add-on)
• and 4 more listed below

Clearbit key features

• Global data coverage
• Lead, contact, and account enrichment
• Real-time lead scoring and routing
• IP intelligence for visitor identification
• Dynamic form shortening
• Corporate hierarchy mapping
• Industry categorization
• Buyer intent signals

Seamless.AI key features

• Real-time B2B contact search engine
• Email and cell phone lookups
• Pitch intelligence
• Data enrichment
• Buyer intent data (add-on)
• Job changes tracking (add-on)
• Autopilot list building (add-on)
• AI writing assistant
• Chrome extension
• Enterprise security and compliance

Clearbit's list runs toward automatic enrichment of records and visitor identification, which are capabilities that fire without anyone asking. Seamless.AI's runs toward search, lookups and pitch intelligence, which are capabilities a rep invokes. Both lists mention enrichment, and the live version of this page implied each was missing it from the other, which was wrong in both directions.

The distinction that survives is automatic against manual. A team whose problem is that inbound records arrive thin wants the automatic kind. A team whose problem is that nobody can find the right contact at a target account wants the manual kind. Those are different problems and they are frequently confused because both are called enrichment.

Integration Ecosystem

Clearbit connects with: HubSpot, Segment, Marketo, Salesforce.

Seamless.AI connects with: Salesforce, HubSpot, Outreach, SalesLoft, Pipedrive, Microsoft Dynamics 365, Zapier.

Both tools integrate with: HubSpot, Salesforce.

Clearbit's integration story is now largely HubSpot's, which simplifies the comparison and narrows it. Seamless.AI reaches Salesforce, HubSpot, Outreach, SalesLoft, Pipedrive, Microsoft Dynamics 365 and Zapier, which is a conventional set with the useful escape hatch on the end.

For a team on Salesforce this is close to decisive. The enrichment capability that now lives inside a competing CRM is awkward to depend on, whatever its quality, and a standalone tool with a direct connector is the lower risk answer.

Who Should Pick Which

Pick the HubSpot route when HubSpot is already the CRM. The enrichment arrives where the records live, nobody has to move data between systems, and the cost sits inside a subscription that is not going away. That is a strong position and it is available to exactly one kind of team.

Pick Seamless.AI when the CRM is anything else, or when the job is finding people rather than filling in records. A search surface is a different product from a record enricher, and no amount of CRM integration turns one into the other.

There is a third case worth naming: a team that used Clearbit standalone and now needs a replacement. That team should compare Seamless.AI against the record enrichment tools rather than against search tools, because the workflow being replaced is automatic rather than manual, and a rep driven lookup surface will not fill records nobody is looking at.

Where Each One Sits in a Cold Outbound Stack

1. Step 1Build the list

   Decide who belongs on it at all. Clearbit is an enrichment service that now lives inside HubSpot.

2. Step 2Resolve or load the contact

   Turn a name into an address you can send to. Seamless.AI is a search engine plus an engagement layer sold together.

3. Step 3Verify before sending

   Check the address separately from whoever supplied it, because a bounce costs sending reputation.

4. Step 4Send one message

   One message per campaign, no bumps and no thread replies, so each address gets a single attempt.

Record enrichment and contact search occupy different boxes in a wave. Enrichment fills fields on rows that already exist, which is upstream of targeting; search produces rows that did not exist, which is the build step itself. A team that buys the wrong one solves a problem it did not have.

Both feed the same downstream constraint. Whatever fills the address field, put it through a dedicated verifier before a send, because a bounce costs sending reputation shared across every campaign on those domains. Then one message per campaign, no bumps and no thread replies.

Switching Between Them

Coming off Clearbit is the live version of this question for most readers, and it has an unusual property: the destination may already be paid for. Before evaluating anything external, check what enrichment the current CRM subscription already includes, because the answer has moved recently and a replacement bought without checking is a duplicated cost.

Moving to Seamless.AI from a record enricher means changing who does the work. Automatic enrichment happens whether or not anyone thinks about it; a search surface only produces data when a rep uses it. That is a process change rather than a tooling change, and it is the part teams underestimate.

Export whatever is exportable before any subscription lapses, and re-verify addresses carried across. Enriched records age at the same rate as any others.

Feature Comparison Summary

Getting Started Checklist

1. Check what enrichment the current CRM subscription already includes before evaluating anything external.
2. Decide whether the job is filling existing records or finding new contacts, because those are different products.
3. If the CRM is not HubSpot, treat Clearbit as unavailable rather than as an option to price.
4. Run Seamless.AI's 50 free credits over target contacts you have failed to find elsewhere, which is the fair test of a search surface.
5. Ask Seamless.AI in writing which add-on capabilities a quote covers.
6. Put verification downstream of whichever tool wins, and keep it independent of the vendor that supplied the address.

Final Thoughts

This pair has an unusual answer because one side of it is no longer for sale separately. For a HubSpot team the enrichment question is largely settled and the remaining decision is whether a search surface is worth adding. For everyone else, Clearbit is context rather than a candidate, and Seamless.AI is being compared against the rest of the market instead.

Start by reading the current CRM subscription. It is the cheapest step and it changes the shortlist more often than teams expect.

Related Reading

• Best Clearbit Alternatives in 2026
• Best Seamless.AI Alternatives in 2026
• Apollo vs Clearbit: Comparing B2B Data Platforms for Sales and Marketing
• Clearbit vs ZoomInfo: Data Enrichment Tool Comparison
• Apollo.io vs Seamless.AI: Data Enrichment Tool Comparison

If you would rather have this run for you, RevenueFlow books qualified meetings on a pay-per-meeting basis and publishes client results.

Pricing and features are taken from the vendors' own pages. Verify current terms with the vendor before relying on them.