TL;DR: If you want a Cognism alternative because some of your European mobiles miss, swapping tools rarely fixes it. Every provider struggles with personal mobiles, shared wholesaler data and numbers that age after export. Keep Cognism, add one or two providers in a waterfall for the countries where it is thin, and check every number before your team dials.
Forty percent.
That is how many Belgian mobiles from one provider in our own CRM, not Cognism, passed our basic checks. The others failed on the basics: wrong country, a landline, or a known bad number. Your rep dials them anyway. A stranger answers. Or a prospect picks up on their private phone and asks where you got the number.
So you search for a Cognism alternative. Most comparison pages come from Cognism's competitors. Everyone is selling.
Keep Cognism and fill the gaps around it.
What does Cognism do, and why do teams look for a Cognism alternative?
Cognism is a B2B data provider built around Europe. Its homepage calls it "Europe's most trusted B2B data for growing pipeline" (as of October 2026). Teams look for alternatives when mobiles miss in certain countries or when the price does not fit.
A few facts from Cognism's own pages, as of October 2026:
- Phone-verified mobiles. Cognism says it has "a routine process in place that calls the numbers" and confirms the right person picks up. Its Diamond Data page claims "over 10m+ phone-verified contacts globally."
- Compliance. Its compliance page says its data follows GDPR and CCPA, and it screens against Do Not Call lists in several countries, including the UK and France.
- Pricing. Cognism does not publish prices. Its pricing page offers a "personalised quote," with Standard and Pro plans, 5 seats included, and "1 credit = 1 revealed contact."
We will be straight with you. We have not run Cognism on our own campaigns, so we have no numbers of our own for it. Its reputation for European data is strong. None of our figures below come from it.
Will a Cognism alternative find more European mobiles?
Sometimes, in a few countries. Rarely across the board. Every provider faces the same three problems in Europe: personal mobiles, data bought from the same wholesalers, and numbers that age after you export them. A new tool gives you the same problems with a different logo.
Look at what Cognism itself publishes. Its Diamond Data page cites an independent study of 1,000 mobiles. The right person picked up on 45% of its phone-verified mobiles, against 18% for standard mobiles. That is a big lift. It also means the wrong person or nobody answered more than half the time, on data a European specialist works hard to verify.
Buyers who measure other tools report the same kind of gap. One buyer in recruitment on Reddit, calling the UK and Europe, ran 1,100 profiles through another provider and got 110 numbers. That is a 10% hit rate. Of those 110, about 40% "wouldn't connect."
The three problems no provider escapes
- Personal mobiles. This is the biggest problem in Europe right now. In our own campaigns, providers have returned numbers from a different country than the person. A Luxembourg contact on a Belgian or French mobile is almost always a cross-border worker's private phone. We take those out before anyone dials.
- Shared wholesaler data. Several providers can hold the same numbers because they buy from the same wholesaler. So when you switch, part of your "new" data is the data you already had.
- Numbers age after export. People change jobs and keep their phone. Carriers recycle lines. We have called people who retired 10 or 15 years ago. We once reached a head of department's wife on what we thought was his mobile.
Here is what that looks like from one provider in our own CRM (not Cognism). Of 2,626 mobiles, 75.6% passed our basic checks: right country, a real mobile, not a known bad number. Of those our teams dialled, 38.9% were answered, and 17.8% reached the person we wanted. Most failures were wrong-country numbers and landlines.
The weak spots were by country. Belgium passed 40% of the time, Ireland 45% and Switzerland 51%. Every provider we have used has countries like that. They are rarely the same countries. That is why one tool is never enough.
Should you replace Cognism or add to it?
Add to it. Keep Cognism for the countries and roles where it works for you. Then add one or two providers for the countries where it is thin, and run them in a waterfall. A waterfall asks provider one, and only sends the misses to provider two, then three. You pay for each number once and you fill the gaps.
You can buy a waterfall from tools like FullEnrich, or build your own in Claude Code. We cover the setup in our post on waterfall enrichment for phone numbers.
One source alone leaves most of a list empty. A BDR in IT services on Capterra counted it for one provider: out of 100 people, contact details for 10, and 8 of those accurate.
Here is why we stack. A waterfall of eight providers on 461 senior IT and security contacts in the Netherlands, Belgium and Luxembourg found a usable mobile for 85% of them (392 of 461). Twenty of the misses only had a mobile from a neighbouring country. That means a personal phone, so we took them out.
Then two warnings.
The fifth provider adds less than you think. Because providers share wholesalers, each new one finds fewer new numbers than the last. Watch what each layer adds and drop the ones that only return duplicates.
Cheap layers do little on senior European contacts. A tier of five low-cost providers found usable numbers for 3 of 71 senior security contacts in Germany, Austria and Switzerland, about 4%. Most of what they returned were US numbers for US-based people. On the same Benelux list, one provider billed us for 27 hits that held 1 usable own-country mobile, about $20 per usable number. Most hits were foreign mobiles and direct lines.
The flip side is real too. One specialist waterfall provider found 14 of 15 senior Dutch and Belgian security mobiles after a seven-provider cheap tier had found 3 of 19. Pick your layers by country and seniority, and judge them on usable numbers.
Which providers can you add next to Cognism?
Pick providers that cover your weak countries, then test each one on 100 of your own contacts. Here are providers teams add to a European stack. Each line says what the vendor says about itself, as of October 2026. We do not rank them.
- Kaspr: a LinkedIn extension that headlines "accurate European contact data."
- Eficia: a provider we have used to fill gaps on hard-to-cover markets in our own campaigns.
- FullEnrich: a ready-made waterfall that says it queries "20+ premium vendors."
- Tomba: says it finds and verifies B2B emails and phone numbers.
- Forager: says it holds "200M+ verified mobile numbers" and contact data.
- Wiza: a Chrome extension that says it finds anyone's email and phone number across the web.
- Lusha: a B2B data and prospecting platform for sales teams.
Once your coverage is high, are the numbers right?
Not always. High coverage means you hold a number for most contacts. Whether that number reaches the person is a separate question. A waterfall fills gaps with whatever each provider has, including personal mobiles, recycled lines and numbers of people who left. Check every number before your team dials it.
This is the step that moves pickup. On bad days we have seen 200+ dials for about 3 people on the phone. Another day, 110 dials gave 3 real pitches. The rest were bad numbers, personal numbers, or no engagement. We have dialled a spa while trying to reach an executive.
Buyers hit the same ceiling. One buyer on Reddit found that from 100 numbers, they could not get more than 20 to 30 connects. Every provider has gaps like these. Keep the one you use, and check its numbers.
The wrong number also carries a legal risk. The UK regulator's guide to the accuracy principle says personal data must be "accurate and, where necessary, kept up to date." It adds that if you find data is wrong, "you must take reasonable steps" to fix or erase it. The same principle sits in Article 5 of the EU GDPR.
We hear it on the phone. People reached on a private number get angry about GDPR, most of all in France and Switzerland.
Checking numbers is what Answrd does. You upload the numbers you already have, from Cognism or anywhere else. You get back numbers that pick up, with wrong and dead numbers flagged. You pay €0.75 per verified number, with credits that never expire. We never sell data.
The results on our own campaigns:
- Engineering services campaign: real pickup went from 6% to 17% after verified numbers.
- Security software campaign: 12.8% real pickup, against a history of 2% to 5%.
- One recent list: of 131 numbers checked, 13 were bad. Of the good ones, most reached the right person and the rest a named voicemail.
Want to see what bad numbers cost you today? The pickup rate calculator shows your cost per real conversation.
Frequently Asked Questions
What does Cognism do?
Cognism sells B2B company and contact data, with a focus on Europe. It offers phone-verified mobiles, emails and Do Not Call screening. It sells plans with seats and credits, and does not publish prices (as of October 2026).
What is the best Cognism alternative for Europe?
No single tool covers every European country well. The better move is to keep the tools you have and add one or two providers in a waterfall for your weak countries. Then check every number before you dial, because high coverage still includes personal and outdated mobiles.
Who are Cognism's competitors?
Teams often compare Cognism with ZoomInfo, Apollo, Lusha and Kaspr. Waterfall tools like FullEnrich also compete for the same budget. For European mobiles, test any of them on 100 of your own contacts and count the numbers that reach the right person.
Is Cognism worth it for European phone numbers?
Its reputation for European data is strong. We have not run it ourselves, so we have no numbers of our own. Judge it the way you judge any provider: by cost per number that reaches the right person, country by country.
Cognism vs Lusha: which is better for mobiles?
Both publish their own claims, and both face the same European problems with personal and aging mobiles. Test both on the same 100 contacts in your target countries. Our Lusha post shows how to compare providers on price per number that reaches the right person.
Why do my Cognism numbers reach the wrong person?
The same reasons that hit every provider: personal mobiles, people who left and kept the phone, and recycled lines. Numbers age once you export them, so check them before each campaign.
Looking for a Cognism alternative? Add a layer and check the numbers
A Cognism alternative will not fix European mobiles on its own. Keep Cognism, add one or two providers for the countries where it is thin, and check every number before your team dials.
Start with your own list. Test 100 numbers free, no card needed, and see how many of your mobiles reach the right person. If you would rather talk it through, book a 15-minute call.