Sales intelligence software finds, verifies and enriches the contact and company data a B2B sales team prospects from: names, job titles, email addresses, direct-dial phone numbers, firmographic details and, increasingly, buying-intent signals, either pulled from one searchable database or surfaced automatically from your own website traffic.
This guide ranks the platforms on what actually separates them once the demo is over: whether the tool searches a global database or only identifies anonymous visitors to your own site, whether pricing is published or quoted per organisation, and whose courts and disclosure laws actually apply once you have signed and handed over a list of real people’s contact details.
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In short
What sales intelligence software does
Sales intelligence software builds and maintains a searchable database of B2B contacts and companies, or, in the website-visitor-identification variant, matches anonymous site traffic back to real company names, so a sales team can find, verify and reach the right person without building that list by hand.
In this order: setup effort, what it really costs, how your data comes back out, whether
you can leave, and who each sales intelligence tool is built for. One rule sits on top of those tests:
Places 1 to 3 go to challengers, vendors outside the best-known brands in a category, wherever the category has them; the established names follow from place 4 in their ranked order. Why those five, and why there is no
score out of ten, is on the how we work page.
Free plan (15 B2B email, 5 phone and 5 direct-email credits a month); Starter EUR 45/user/month billed annually or EUR 59 monthly; Business EUR 79/user/month billed annually or EUR 99 monthly; Enterprise custom, published
Yes
A Paris-built LinkedIn prospecting extension with 500m+ phone numbers and emails, owned by Cognism
Starter €69/month (annual) or €99 monthly; Scale €159/month (annual); Pro €359/month (annual), tiered by identified-company volume; 14-day free trial, published
—
Dutch website-visitor identification with a 300M+ decision-maker database, part of the teamblue group
Lite free forever (up to 100 identified companies/month); Discover from €79/month; Activate from €369/month; Scale from €599/month; Enterprise custom, published
Yes
German-Finnish website-visitor identification, free at the entry tier, from the Dealfront/Leadfeeder merger
German website-visitor identification only, not a searchable contact database like the rest of this list
—
Country is where the vendor is headquartered or contracts from, which is a
different question from where your data is hosted. Where the two tell different stories, the
entry says so.
A Paris-built LinkedIn prospecting extension with 500m+ phone numbers and emails, owned by Cognism
Ranked #1 of 11 in Best Sales Intelligence Software in 2026.
Free tierPublished pricingElsewhere
Kaspr's product, a LinkedIn Chrome extension paired with a B2B contact database of 500m+ verified phone numbers and email addresses covering 200m+ profiles, is built in Paris. But it isn't independent: Kaspr joined the Cognism Group in 2022, and its own About page says the two are on one mission together.
That makes its real corporate home the UK, where parent Cognism is headquartered, even though the product itself is French. It claims GDPR and CCPA alignment. Pricing is published per user, with a free plan of a few credits a month and Starter from EUR 45 a month billed annually.
What stands out
LinkedIn Chrome extension
500m+ phone numbers and emails
Part of Cognism Group
France (product HQ); part of Cognism Group, UKFree plan (15 B2B email, 5 phone and 5 direct-email credits a month); Starter EUR 45/user/month billed annually or EUR 59 monthly; Business EUR 79/user/month billed annually or EUR 99 monthly; Enterprise custom, published
Dutch website-visitor identification with a 300M+ decision-maker database, part of the teamblue group
Ranked #2 of 11 in Best Sales Intelligence Software in 2026.
Published pricingEurope
Leadinfo, like Leadfeeder, identifies anonymous companies visiting your site rather than letting you search cold, and layers a 300M+ decision-maker database on top to find the right contact once a company is identified.
It is headquartered in the Rotterdam area of the Netherlands, in Capelle aan den IJssel, confirmed on its own contact page, and is part of the Dutch/Belgian teamblue SaaS group. Pricing is tiered by identified-company volume, with a 14-day free trial.
What stands out
300M+ decision-maker database
Website-visitor identification
Part of teamblue
NetherlandsStarter €69/month (annual) or €99 monthly; Scale €159/month (annual); Pro €359/month (annual), tiered by identified-company volume; 14-day free trial, published
A Helsinki-built B2B data platform focused specifically on the Nordic region
Ranked #3 of 11 in Best Sales Intelligence Software in 2026.
Published pricingEurope
Vainu is the only tool on this list built specifically for one region: its company and contact data platform focuses on the Nordics, Denmark, Finland, Norway and Sweden, rather than chasing the global coverage ZoomInfo or Cognism aim for.
It is headquartered in Helsinki, Finland, with an additional office in Stockholm, Sweden. Pricing starts well above the entry-level tools here, positioning it as a considered, Nordic-enterprise buy rather than a self-serve one.
What stands out
Nordic-region focus
Company + contact data
Helsinki headquartered
FinlandVainu for Prospecting from €3,500/year + €200 onboarding; Vainu for CRM from €4,200/year + €750 onboarding; Vainu for Data custom-priced, published
A B2B contact database and sales engagement platform combined into one tool, with a free plan and listed prices
Ranked #4 of 11 in Best Sales Intelligence Software in 2026.
Free tierPublished pricingNorth America
Apollo.io folds a prospecting database and outbound email sequencing into a single platform, so you don't need a second tool to actually contact the people you found; ZoomInfo and Lusha now offer outreach too, but Apollo.io was built around it and adds a parallel dialer.
It states 240M contacts and 30M companies, and its pricing page lists a free plan, Basic at USD 49 and Professional at USD 99 a month on monthly billing, with credits pooled across the team and expiring each cycle. Its terms name ZenLeads Inc., trading as Apollo.io, with an address in Covina, California, and its privacy policy cites ISO 27001 and SOC 2 certification.
What stands out
Database + outreach in one tool
240M contacts stated
Free plan
United StatesFree plan; Basic USD 49/month and Professional USD 99/month on monthly billing, published
290M+ contacts across 29M+ companies with listed prices and a free plan, run through a dual US/Israel corporate structure
Ranked #5 of 11 in Best Sales Intelligence Software in 2026.
Free tierPublished pricingElsewhere
Lusha operates through two registered entities acting as joint data controllers per its own privacy policy: Lusha Systems Inc., incorporated in Delaware with an address in Boston, Massachusetts, and Lusha Systems Ltd., incorporated in Israel with an address in Tel Aviv. That makes its jurisdiction the least straightforward answer on this list.
It claims a database of 290M+ contacts and 29M+ companies, lists ISO 27701 and SOC 2 Type II among its certifications, and publishes its prices: a free plan with 40 credits a month and Starter at USD 49.90 a month for 400 credits, where an email costs 1 credit and a phone number 5. Email sequencing through Lusha Engage is included at no extra charge.
What stands out
290M+ verified contacts
29M+ companies
Dual US/Israel entity
United States / Israel (dual entity)Free plan (40 credits/month); Starter USD 49.90/month or USD 37.45/month billed annually, published
A global B2B data company headquartered in London, with offices in five more countries
Ranked #6 of 11 in Best Sales Intelligence Software in 2026.
Pricing on requestEurope
Cognism describes itself as a global B2B data company built for modern revenue teams, and its own footprint backs that up: its contact page names The Shard in London as headquarters, alongside offices in Boston, Cologne, Paris, Skopje and Zadar.
That spread sets it apart from the single-country competitors further down this list, like Vainu or SalesViewer. Its pricing page names two plans, Standard and Pro, without figures: the price is a tailored quote, and unlike ZoomInfo, Apollo.io or Lusha it offers nothing to try at no cost beyond a data sample, so you are negotiating before you are comparing.
What stands out
Global B2B data company
Offices in 6 countries
UK headquartered
United KingdomQuoted per organisation; Standard and Pro plans, no figures listed
A long-established B2B contact and company database that states 500M contacts and 100M companies, with outreach tools attached
Ranked #7 of 11 in Best Sales Intelligence Software in 2026.
Free tierPublished pricingNorth America
ZoomInfo is the default reference point in this category: its about page states 500M contacts and 100M companies, more than Apollo.io or Lusha claim, with coverage that spans markets the smaller, regionally-focused tools further down this list don't try to reach. It is no longer a database alone: the sales product lists cadences through a dialer and email tool, conversation intelligence and buyer intent.
Its legal entity, ZoomInfo Technologies LLC, is headquartered in Vancouver, Washington. There is a permanent free plan, ZoomInfo Lite, but paid pricing runs on usage-based credits and no figures are published, so you cannot compare paid cost against the rest of this list without a sales call first.
What stands out
500M contacts stated
Global coverage
Free Lite plan
United StatesFree plan (ZoomInfo Lite); paid plans on usage-based credits, quoted
Enrichment, lead scoring and buying-intent signals, now built for HubSpot customers as Clearbit by HubSpot
Ranked #8 of 11 in Best Sales Intelligence Software in 2026.
Pricing on requestNorth America
Clearbit was a San Francisco-founded enrichment company before HubSpot acquired it; it now operates as Clearbit by HubSpot, with HubSpot's own headquarters in Cambridge, Massachusetts, standing behind it.
The product enriches lead, contact and account records in real time, scores and routes leads, and layers in buying-intent signals from IP intelligence, a different job from a cold-outbound database like ZoomInfo or Apollo.io. It is the most useful to a team already inside the HubSpot ecosystem rather than as a standalone buy.
German-Finnish website-visitor identification, free at the entry tier, from the Dealfront/Leadfeeder merger
Ranked #9 of 11 in Best Sales Intelligence Software in 2026.
Free tierPublished pricingEurope
Leadfeeder identifies the companies visiting your website rather than letting you search a database for cold prospects, which puts it in a different use case from ZoomInfo, Apollo.io or Cognism.
Its legal entity, Dealfront Group GmbH, is headquartered in Karlsruhe, Germany, with an additional office in Helsinki, Finland, a 2022 merger of Germany's Echobot and Finland's Leadfeeder backed by €180M from US private equity firm Great Hill Partners, and rebranded from Dealfront to Leadfeeder as the primary brand in 2025. Its Lite tier is free with no time limit, which among the visitor-identification tools here is unique; Apollo.io, Lusha and ZoomInfo also offer free plans on the database side.
What stands out
Website-visitor identification
Free tier forever
German-Finnish merger
GermanyLite free forever (up to 100 identified companies/month); Discover from €79/month; Activate from €369/month; Scale from €599/month; Enterprise custom, published
A Brussels-built contact database of 450M+ professionals combined with AI-powered multichannel outreach
Ranked #10 of 11 in Best Sales Intelligence Software in 2026.
Published pricingEurope
Overloop pairs a 450M+-professional contact database with AI-powered outreach across email and LinkedIn, closer in shape to Apollo.io's database-plus-engagement model than to a data-only tool.
Legal entity Overloop SRL is headquartered in Brussels, Belgium, confirmed on its own about page; the product started life in 2015 as a Chrome extension called Prospect.io, and Overloop has since been acquired by Sortlist, a Brussels marketplace that matches companies with agencies. Pricing is published, though oddly in USD for a Belgian company.
German website-visitor identification only, not a searchable contact database like the rest of this list
Ranked #11 of 11 in Best Sales Intelligence Software in 2026.
Published pricingEurope
SalesViewer is a genuinely different product from the other ten: it identifies anonymous companies visiting a customer's website and does not offer a searchable outbound contact database the way ZoomInfo, Apollo.io, Cognism, Lusha or Kaspr do.
Legal entity SalesViewer GmbH is headquartered in Bochum, Germany, confirmed on its own Impressum, and it says unnamed international data privacy experts have certified it as GDPR and CCPA compliant. Pricing, excl. VAT, is tiered by monthly detection volume, with a 14-day free trial you can cancel anytime.
Sales intelligence software builds and maintains a searchable database of B2B contacts and companies, or, in the website-visitor-identification variant, matches anonymous site traffic back to real company names, so a sales team can find, verify and reach the right person without building that list by hand. The differences that matter are rarely in the feature list, so this is
the order we would work through them.
01
Decide whether you need a published price
9 of the 11 tools here publish what they cost; the other 2 quote per organisation. The ones you can compare without a sales call: Kaspr, Leadinfo, Vainu, Apollo.io, Lusha, ZoomInfo, Leadfeeder, Overloop, SalesViewer.
02
Decide how much the jurisdiction matters
These 11 vendors are established in 8 countries across 3 regions (Europe 6, North America 3, Elsewhere 2). That decides whose disclosure law applies to what the vendor holds, wherever the servers are.
Searching a database and unmasking your own visitors are separate purchases
ZoomInfo, Cognism, Lusha and Kaspr let you look up people you have never met. Leadfeeder, Leadinfo and SalesViewer instead name the companies already on your website, and SalesViewer offers no searchable contact database at all.
Leadinfo layers a decision-maker database over the visits. The first group feeds cold outbound; the second is only as good as the traffic you already attract.
Count monthly visits from business networks before paying for visitor identification.
Ask whether an identified company arrives with named contacts or only a firm name.
Decide whether the gap is finding new accounts or prioritising ones already looking at you.
Coverage is regional, whatever the record count says
Lusha claims 290M contacts, Kaspr 500m phone numbers and emails, Overloop 450M professionals; none of those figures says how many are accurate in your territory.
Vainu covers only the Nordics and does so on purpose, while ZoomInfo and Cognism aim at global reach. The test that counts is a sample of your own target accounts, checked for direct dials that actually connect.
Send each vendor the same 50 target accounts and compare what comes back.
Dial ten of the mobile numbers returned.
Ask how often a record is re-verified and how a job change is picked up.
Data alone, or data with the outreach tool attached
Apollo.io and Overloop combine the database with sequencing, so the people you find can be contacted without a second product, and the larger vendors have followed: ZoomInfo now lists cadences with a dialer and email tool, and Lusha includes email sequencing through Lusha Engage.
Clearbit is different again: it enriches, scores and routes records in real time and is most useful to a team already inside HubSpot. Kaspr works as a Chrome extension on LinkedIn, which suits reps prospecting profile by profile.
If you already own a sequencing tool, test the export or sync instead of paying for a second one.
Ask which CRM fields enrichment overwrites and whether you can lock them.
Ask what a revealed phone number or email costs on the plan you are quoted.
You become answerable for personal data somebody else collected
These products hold contact details of people who never signed up to them, and once you import a list the privacy obligations are yours too. Lusha runs two entities, in Delaware and Israel, as joint data controllers and claims ISO 27701 and SOC 2 Type II.
SalesViewer says unnamed privacy experts certified it as GDPR and CCPA compliant; Kaspr claims alignment with both. Ask what stands behind each claim.
Ask how opt-outs and do-not-call registers are applied to numbers before you dial.
Find out whether a record deleted at the vendor is flagged in data you already exported.
Identify which legal entity signs the data processing agreement.
What goes wrong most often when buying sales intelligence software
Buying visitor identification for a site with too little business traffic to identify.
Choosing on total database size instead of match rate against your own account list.
Paying for the sequencing inside Apollo.io, Overloop or ZoomInfo while running a separate engagement tool.
Importing purchased contacts into the CRM with no record of where each came from or how to honour an opt-out.
07
Frequently asked questions
6 answers
What is the best sales intelligence software in 2026?
Kaspr leads our ranking of 11. Kaspr's product, a LinkedIn Chrome extension paired with a B2B contact database of 500m+ verified phone numbers and email addresses covering 200m+ profiles, is built in Paris. But it isn't independent: Kaspr joined the Cognism Group in 2022, and its own About page says the two are on one mission together.
That makes its real corporate home the UK, where parent Cognism is headquartered, even though the product itself is French. It claims GDPR and CCPA alignment. Pricing is published per user, with a free plan of a few credits a month and Starter from EUR 45 a month billed annually.
Which sales intelligence tools publish their pricing?
9 of the 11, with the pricing model each one publishes:
Kaspr: Free plan (15 B2B email, 5 phone and 5 direct-email credits a month); Starter EUR 45/user/month billed annually or EUR 59 monthly; Business EUR 79/user/month billed annually or EUR 99 monthly; Enterprise custom, published.
Leadinfo: Starter €69/month (annual) or €99 monthly; Scale €159/month (annual); Pro €359/month (annual), tiered by identified-company volume; 14-day free trial, published.
Vainu: Vainu for Prospecting from €3,500/year + €200 onboarding; Vainu for CRM from €4,200/year + €750 onboarding; Vainu for Data custom-priced, published.
Apollo.io: Free plan; Basic USD 49/month and Professional USD 99/month on monthly billing, published.
Lusha: Free plan (40 credits/month); Starter USD 49.90/month or USD 37.45/month billed annually, published.
ZoomInfo: Free plan (ZoomInfo Lite); paid plans on usage-based credits, quoted.
Leadfeeder: Lite free forever (up to 100 identified companies/month); Discover from €79/month; Activate from €369/month; Scale from €599/month; Enterprise custom, published.
Kaspr, Apollo.io, Lusha, ZoomInfo, Leadfeeder offer a free tier or a free self-hosted edition.
Where are these sales intelligence software vendors established?
In 8 countries across 3 regions: Europe 6, North America 3, Elsewhere 2.
Kaspr: France (product HQ); part of Cognism Group, UK.
Leadinfo: Netherlands.
Vainu: Finland.
Apollo.io: United States.
Lusha: United States / Israel (dual entity).
Cognism: United Kingdom.
ZoomInfo: United States.
Clearbit: United States.
Leadfeeder: Germany.
Overloop: Belgium.
SalesViewer: Germany.
What should you use instead of Kaspr?
Leadinfo and Vainu are the next two on this page. Leadinfo is for Dutch website-visitor identification with a 300M+ decision-maker database, part of the teamblue group; Vainu is for a Helsinki-built B2B data platform focused specifically on the Nordic region.
Who should not buy Kaspr?
Kaspr's product, a LinkedIn Chrome extension paired with a B2B contact database of 500m+ verified phone numbers and email addresses covering 200m+ profiles, is built in Paris. But it isn't independent: Kaspr joined the Cognism Group in 2022, and its own About page says the two are on one mission together.
That makes its real corporate home the UK, where parent Cognism is headquartered, even though the product itself is French. It claims GDPR and CCPA alignment. Pricing is published per user, with a free plan of a few credits a month and Starter from EUR 45 a month billed annually.
If your sales intelligence software product belongs among these 11, tell us what it does and who it is for. Inclusion is an editorial call; what a listing is and is not is set out under software advice.
