The 10 best B2B data enrichment tools

A data enrichment tool takes an incomplete list, a name, a company, sometimes just a domain, and fills in a work email, a mobile number and company information. The market splits in two. On one side proprietary databases, which sell access to a stock of already-collected contacts. On the other orchestrators, which query several providers in sequence until something comes back.

This comparison covers ten tools, with prices checked on vendor pages in November 2026. Tandem runs Clay and FullEnrich in production, on its own campaigns and on client campaigns. The other eight are assessed on their documentation, their public pricing and the reviews posted on software marketplaces. Each entry says explicitly which case applies.

How this comparison was built

Four criteria ranked these tools, and they are stated before the names so you can argue with the ranking.

1. The real find rate. A single provider tops out around four contacts in ten on a French list. That number is the starting point for everything else.
2. The data model. A database bought once grows stale. On-demand generation costs more but stores nothing.
3. The legal frame. Hosting, the legal basis for collection and the ability to answer an access request involve your liability, not only the vendor's.
4. The price per usable contact. A cheap subscription that finds nothing costs more than a waterfall billed on results.

Why one provider is never enough

Every provider has blind spots. One covers large American technology companies well, another French small businesses, a third mobile numbers but not emails. Querying a single provider on a thousand-row list leaves six hundred rows empty. A waterfall solves that by stacking sources, and by billing only the rows actually completed.

That ordering is the single setting that really changes the outcome. On a French list I put FullEnrich at the top of the waterfall, because it is a French vendor and it finds more on that market, even though the call burns more credits. American providers run next, to pick up the remaining rows. The same logic applies to mobile numbers, with a validation step at the end of the chain.

1. Clay, the orchestrator that replaces the spreadsheet

Clay looks like a spreadsheet where every column triggers a call. You import companies from filters, a CRM export, map data or a webhook, then add enrichment columns. The platform gives access to more than 150 data providers and lets you chain them into a waterfall without writing code.

Key features

• Built-in sources generate company or people lists from industry filters, headcount or a map search.
• Enrichment waterfalls query several providers in sequence, for emails as well as mobiles.
• Artificial intelligence columns run a web search then write a variable, a company summary or a personalised opener.
• Scoring weighs qualitative and quantitative variables together, instead of adding points.
• Sync pushes qualified rows into a CRM or into a multichannel sequencing tool.

Underlying model and limits. Clay owns no data of its own, it resells access to its providers and bills data credits plus platform actions. The learning curve is real, and a badly built table burns credits without producing anything. Hosting is American.

Pricing. A free tier gives a hundred data credits and five hundred actions a month. The Launch plan starts around 150 euros a month and Growth around 400 euros, checked on Clay's pricing page in November 2026. Data credits start around five cents each and drop with volume.

What users say. Public scores rest on a review count that is still small for a tool of this profile, around two hundred on software marketplaces, which makes the rating weakly significant. The recurring complaint is credit consumption that is hard to anticipate, the recurring praise is assembly freedom.

My take on Clay. It is the tool I use for the whole lead generation and enrichment stage, and I wrote a full tutorial about it. Others handle enrichment just as well. What makes it irreplaceable is chaining the source, the waterfall, the scoring and the handoff inside one table. The trap is over-enriching. Every column has a cost, and you should stop as soon as the row is qualifiable.

2. FullEnrich, the strongest waterfall on French data

FullEnrich is a French vendor that does one thing, contact waterfalls. You send a name and a domain, it queries more than twenty-five providers in sequence and returns the work email and the mobile number. The tool works on its own, in a browser, or as a provider inside another platform.

Key features

• The waterfall queries up to eighteen sources for a mobile and thirteen for a work email.
• Credits are only spent when verified data comes back.
• Bulk enrichment takes a file and returns the completed columns.
• A connection interface plugs the waterfall into a third-party tool or a workflow.

Underlying model and limits. FullEnrich holds no database of its own, it aggregates those of its providers. Quality therefore depends on the target market, excellent in France and Western Europe, more uneven elsewhere. It does neither sourcing nor sequencing, so it needs company.

Pricing. A trial gives fifty credits. The Pro plan starts around 55 euros a month for a thousand credits, checked on its pricing page in November 2026. A work email costs one credit, a mobile costs ten, which puts a mobile around fifty cents.

What users say. The public review volume stays low, since the tool is recent and sold largely through other platforms. The feedback that comes back most often is a find rate above single providers, and a high cost per mobile.

My take on FullEnrich. It is the first stage of our waterfalls on French lists, and I deliberately put it ahead of American providers. It burns more credits per call, but it finds where others return an empty column, which makes it cheaper per contact obtained. I never use it alone though, because it does not build the starting list.

3. Dropcontact, enrichment that stores nothing

Dropcontact is a French vendor that owns no contact database. The tool rebuilds every email on demand, algorithmically, then verifies it against mail servers. That makes it the easiest option to defend in front of a data protection officer, since there is no stock of personal data to justify.

Key features

• Work email generation happens in real time, without reading a pre-existing database.
• CRM cleaning detects duplicates, fixes name formatting and updates companies.
• Native connectors sync directly with the main CRMs on the market.
• Processing runs on servers located in the European Union.

Underlying model and limits. Without a proprietary database, Dropcontact returns no mobile number, and its email find rate depends on how regular the target company's naming conventions are. On a company using non-deducible addresses it returns an empty column where a database would hold a record.

Pricing. The Starter plan starts at 79 euros a month and Growth at 120 euros, checked on Dropcontact's pricing page in November 2026, with a discount on annual commitment. Credit volume is set inside each tier.

What users say. The public score sits around 4.6 out of 5 on software marketplaces, over a few dozen reviews only, checked in November 2026. The recurring praise is the cleanliness of the data returned, the recurring complaint is the absence of phone numbers.

My take on Dropcontact. I have not deployed it on its own for a client, so I stick to what documentation and reviews allow me to verify. What I do observe is that it shows up constantly as a provider inside French waterfalls and sourcing platforms, which says a lot about the reliability of what it returns.

4. Kaspr, mobiles straight from LinkedIn

Kaspr is a browser extension that shows a LinkedIn profile's contact details while you view it. The vendor claims more than 200 million European profiles, and it remains the reflex of sales reps who prospect profile by profile. It is also the only tool in this selection fined by the French regulator.

Key features

• The extension reveals email and mobile directly on a profile page or a list.
• Bulk enrichment processes a list of profiles in one pass.
• CRM connectors push the revealed contact without copy and paste.
• The free tier lets you test the find rate on your own target before paying.

Underlying model and limits. Kaspr runs a proprietary database built partly from the contributions of extension users. That is precisely the model behind the fine detailed below. Coverage is good in Western Europe and thin elsewhere.

Pricing. The free tier gives fifteen emails and five numbers a month. The Starter plan starts around 45 euros per user per month and Business around 79 euros, checked on Kaspr's pricing page in November 2026.

What users say. The score sits around 4.4 out of 5 across more than 750 reviews on software marketplaces, a figure the vendor displays itself in November 2026. The praise is fast access to a mobile, the complaint is numbers that are sometimes out of date, and credit management.

My take on Kaspr. I have not deployed it on an engagement, so I stick to what is verifiable. What I do tell the teams we work with is that the 2024 fine does not ban the tool, it forces one extra question. Knowing where a number came from is now part of the choice, just like its price.

5. Lusha, volume outside Europe

Lusha is an Israeli contact database, delivered through a browser extension and a web interface. It targets teams prospecting outside Europe that need volume more than precision. The vendor claims more than 280,000 teams as users.

Key features

• The extension shows contact details on a profile, a company page or a CRM record.
• Bulk enrichment processes a whole list from the web interface.
• Technographic data shows which tools the target company uses.
• Unused credits roll over, up to twice the monthly quota.

Underlying model and limits. Lusha runs a proprietary database, with the same provenance questions as its competitors. French coverage is decent without matching local vendors. The credit system penalises mobile lookups heavily, billed at five times the price of an email.

Pricing. A free tier gives forty credits a month. The Starter plan sits around 45 euros a month and Pro around 65 euros, converted from the dollar figures shown on Lusha's pricing page in November 2026.

What users say. The score sits around 4.3 out of 5 across roughly 1,600 reviews on software marketplaces, checked in November 2026. The praise is the simplicity of the extension, the complaint is data accuracy outside North America, and the credit policy.

My take on Lusha. I have not deployed it on an engagement, and it would be dishonest to rule in its place. The marker I give is simple. If your target is French, a local vendor will find more, for less per contact obtained. If it is global, a database of this size becomes hard to avoid.

6. Cognism, the premium database for structured teams

Cognism is a British vendor selling a B2B database to structured sales organisations. Its main argument is a category of mobile numbers verified by a human call rather than deduced. The tool also screens against several European do-not-call registers.

Key features

• Manually verified mobiles deliver a connect rate above deduced numbers.
• Do-not-call screening reduces regulatory exposure on calling campaigns.
• Intent signals flag companies actively researching your category.
• CRM and sequencer integrations are built for team use, with rights management.

Underlying model and limits. Cognism sells an annual contract, with a platform fee plus per-user licences. The entry price effectively rules out small teams. Access to verified mobiles is billed on top of the platform fee, and it is the main reason to pick this tool in the first place.

Pricing. No figure is published on Cognism's pricing page in November 2026, and the vendor works from a quote. Buyer reports shared publicly put the annual platform fee in the tens of thousands of euros, which remains an estimate to confirm with the vendor.

What users say. The score sits around 4.5 out of 5 across nearly 1,400 reviews on software marketplaces, checked in November 2026. The praise is mobile quality, the complaint is price and the rigidity of the annual commitment.

My take on Cognism. I have not deployed it on an engagement. What I see at the companies Tandem works with is that this budget level makes sense once a team of reps spends its days on the phone. Below that, a waterfall billed on results delivers the same service for a fraction of the cost.

7. Apollo, database and sequencing in one tool

Apollo combines a contact database with a sequencing tool. The vendor claims 240 million contacts and 30 million companies. It is often the first tool a small team adopts, because it covers targeting, enrichment and outreach without assembly.

Key features

• Search filters cover job title, headcount, technology used and growth signals.
• Enrichment returns email and mobile from the same interface as targeting.
• The sequencer handles sends, follow-ups and reply tracking.
• A free tier lets you validate coverage on your target before committing.

Underlying model and limits. The database is proprietary and markedly richer in North America than in France. Credits are pooled across the team and do not roll over between cycles. The built-in sequencer stays basic next to specialist tools.

Pricing. A free tier exists with no time limit. The Basic plan sits around 45 euros per user per month on annual billing and Professional around 75 euros, converted from the dollar figures reported in November 2026. Apollo's pricing page does not display the amounts directly.

What users say. The score sits around 4.7 out of 5 across more than 9,000 reviews on software marketplaces, checked in November 2026, by far the largest review volume in this selection. The praise is the feature-to-price ratio, the complaint is European data quality.

My take on Apollo. I have not deployed it on an engagement, but I regularly find it already in place at the companies that call us. The pattern is always the same. Apollo gets you moving very fast, then French coverage becomes the limiting factor, and a waterfall has to go on top.

8. Pharow, sourcing French companies

Pharow is a French vendor that attacks the problem upstream. Rather than selling contacts, it helps build the list of companies to target, from French legal data and activity signals. Enrichment comes afterwards, leaning on third-party providers.

Key features

• Sourcing covers around 3.4 million French companies, filtered by headcount, revenue, industry code or technology used.
• Signals flag active hiring and recent funding rounds.
• The people database holds around 10 million profiles, with org chart reconstruction.
• Work emails are included in the subscription, through third-party enrichment providers.

Underlying model and limits. Pharow relies on French legal data and on external providers for the contact layer, including Dropcontact and FullEnrich. The tool is useless outside France. Phone numbers are paid in credits, at ten credits per number found.

Pricing. The Essentiel plan starts at 139 euros a month for a thousand credits and Avancé at 229 euros, checked on Pharow's pricing page in November 2026. Annual commitment brings Essentiel down to around 105 euros.

What users say. Public review volume stays low, since the tool is sold on the French market only. The feedback that comes back is the precision of industry targeting, and an entry price that is steep for a two-person team.

My take on Pharow. I have not deployed it on an engagement. What I take away from the French market is that the hard part is almost never finding an email, it is building the right company list. A tool that starts from French legal data solves the real problem, provided your target sits entirely in France.

9. Societeinfo, matching a file to legal company IDs

Societeinfo solves a problem contact databases ignore, attaching every row of a file to the company's official legal identifier. The platform covers more than 11 million French companies and is used mostly to clean and qualify an existing database.

Key features

• Legal ID matching links an approximate company name to its registration number and its establishment.
• Enrichment adds the address, industry code, VAT number, website and social profiles.
• Financial data from published accounts helps qualify a prospect's real size.
• The programming interface exposes the same data for automated use.

Underlying model and limits. Societeinfo builds on French public records, enriched by its own web processing. Native CRM connectors are more limited than at international competitors. The tool returns no executive mobile number.

Pricing. The vendor advertises pay-as-you-go or an adjustable subscription, without a full published grid on its website in November 2026. The budget is therefore built from a quote, based on the volume processed.

What users say. Public review volume is low, the product being aimed mostly at technical teams and marketing departments. The praise is matching quality, the complaint is the interface.

My take on Societeinfo. I have not deployed it on an engagement. The need it answers, however, turns up in almost every sales data project we run. A French customer file without official company identifiers produces duplicates nobody can arbitrate, and that is the kind of debt that costs later.

10. Pappers, checking a company for free

Pappers makes French company legal data accessible, collected from official registers and refreshed daily. Consultation is free, and the programming interface allows automated enrichment of a file. Its purpose is verification, upstream of any prospecting.

Key features

• The company record gives the legal identifier, the directors, published accounts and official notices.
• The search engine accepts a name, an identifier or a director's name.
• The programming interface returns the same data in bulk, for automated enrichment.
• Data comes straight from public registers, which removes any provenance question.

Underlying model and limits. Pappers holds only public data about legal entities, so no contact email and no mobile number. Free consultation does not grant automated reuse rights, and going through the programming interface is billed.

Pricing. Online consultation is free. The programming interface is sold in monthly token tiers, with a credit option for occasional use, checked in November 2026.

What users say. The product is widely used in France and does not attract a review volume comparable to commercial tools. The praise is that it is free and fresh, the complaint is interface limits at high volumes.

My take on Pappers. It is the first reflex before qualifying a French prospect, and it costs nothing. What I advise the teams we work with is to use it as a guardrail rather than a source. Checking that a company still exists and has the size claimed avoids enriching dead rows, so it avoids paying for nothing.

How to choose for your situation

The right tool depends on three parameters, your market, your volume and how demanding you are about data provenance. Four cases cover almost every situation we meet at client sites.

• French target, small team. Pharow to build the list, FullEnrich for the waterfall, Pappers to verify. Budget around 200 euros a month.
• International target, high volume. Apollo to start, then Clay as soon as coverage becomes the limit. Credits replace the subscription as the main cost line.
• A team of reps on the phone. Cognism earns its price on verified mobile quality, provided you accept an annual commitment.
• Strong compliance requirements. Dropcontact, because there is no personal database to justify, paired with public company data.

These tools never live alone. The enriched list then feeds a multichannel sequence, and after that the phone. I covered the rest of the chain in our sales tools overview and in the comparison of B2B sales dialers.

What the fine against Kaspr changes for you

This is the point enrichment comparisons carefully avoid. In December 2024, the French data protection authority fined Kaspr 240,000 euros. The main grievance was the absence of a legal basis, the vendor having collected the contact details of LinkedIn users who had restricted the visibility of their profile. The database held around 160 million contacts at the time of the inspection.

Three further breaches were held against it in the regulator's decision, a retention period renewed for five years on every update, late notice to the people concerned written in English, and incomplete answers to access requests. The vendor was given six months to comply.

The technical ease of collection, which I walked through in this carousel on scraping, is exactly what makes the provenance question unavoidable. A publicly reachable email is not a freely reusable email, and the end user carries part of the risk.

In practice, B2B prospecting remains lawful in France under legitimate interest, provided the message relates to the person's professional role and they can object easily. The fine does not target prospecting, it targets how a database was built.

Which data enrichment tool to choose in 2026

If your market is French, the answer comes down to two tools. Pharow or Societeinfo to build and qualify the list, FullEnrich for the contact waterfall. You will clear eight contacts in ten for a few hundred euros a month, with data hosted in Europe.

If you prospect internationally or process several thousand rows a month, Clay becomes the control room. It replaces no provider, it commands them all, and that is exactly what you need when no single source covers your target. Allow one to two weeks to get comfortable with it.

In every case, measure the cost per usable contact rather than the subscription price. It is the only number that matters, and I already made that point in my newsletter edition on sales. Over-enriching costs a lot without improving the reply rate. Stop as soon as the row is qualifiable.