Cognism vs Apollo vs Lusha: Best for European Outbound
TL;DR
Cognism is the safest and most complete choice for European outbound teams that need GDPR-compliant mobile numbers at scale. Apollo wins on price and global breadth for teams prospecting into the US alongside Europe. Lusha is a solid LinkedIn enrichment layer but not a primary data source for serious European outbound.
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If you are running outbound into Germany, the Nordics, Benelux, or the UK and sourcing data from a US-centric provider, you are probably burning budget on bounced emails and phantom mobile numbers while quietly accumulating GDPR liability. I have set up outbound infrastructure for European SaaS teams at Homegrown Growth Co., and the data provider decision is consistently where the most money leaks. This post cuts through the vendor marketing and tells you which of the three dominant options actually works when your prospect is a VP of Engineering in Amsterdam, not Austin.
What actually separates these three for European teams
The US analyst view of this space focuses almost entirely on database size and CRM integrations. For European outbound, neither of those is the deciding factor. What matters: verified mobile numbers (because cold email open rates in Europe are suppressed by stricter spam filtering), GDPR-defensible data sourcing, and European-specific TAM coverage in your actual verticals.
Cognism built its entire product narrative around this axis. Its Diamond Data tier puts a human agent on the phone to verify a mobile number before surfacing it. That sounds slow, and it is. Match rates are lower than Apollo’s because of it. But when a number rings and connects, the conversion math changes entirely. For DACH markets specifically, where cold email conversion is notoriously low, this matters more than anywhere else. I have watched teams switch from Apollo to Cognism for German outbound and cut their calls-per-meeting number almost in half.
Apollo is the dominant global player for a reason: it has the richest intent data layer, the best native sequencing builder, and pricing that lets early-stage teams get in without a procurement conversation. But its European mobile data is crowdsourced and community-verified. Accuracy degrades significantly outside the UK and major Western European hubs. I have pulled Apollo lists for Scandinavian prospects and seen mobile bounce rates above 60%. That is not a rounding error.
Lusha carved its identity as the LinkedIn enrichment tool of choice before Clay made waterfall enrichment mainstream (see our breakdown of waterfall enrichment tools for context on how that changes the calculus). Its European database is smaller than both competitors and its GDPR compliance documentation, while present, is thinner than Cognism’s. Lusha is useful in the right context. It is not a primary source.
Which B2B data provider fits your European outbound motion?
Choose Cognism if
- Your primary market is DACH, Nordics, Benelux, or UK and mobile outreach is core to your sequence
- Your legal team has flagged GDPR compliance as a hard requirement, not a nice-to-have
- You are running phone-first or blended (email + call) sequences where mobile connect rate drives pipeline
Choose Apollo if
- You prospect both US and European markets and need a single platform with sequencing built in
- Email-first outbound is your primary motion and mobile is supplementary
- Budget is a constraint and you need the most contacts per dollar with intent data layered in
Choose Lusha if
- You need a fast LinkedIn enrichment overlay for SDRs doing research in the browser
- You already have a primary data provider and want a secondary source to fill gaps
- Your outbound volume is low enough that per-credit pricing stays manageable
How to choose
This decision hinges on two variables: how much of your TAM is in Europe specifically (not just English-speaking global), and whether cold calling is part of your outbound motion at all.
If your SDRs are running a pure email sequence into European contacts, Apollo is a defensible choice at its price point, especially if you pair it with a dedicated email verification step through Bouncer or ZeroBounce before any send. You do not need to pay Cognism’s premium for email-only sequences. Full stop. But if you are running a blended motion where an SDR sends an email and then calls within 48 hours, and your targets are in Germany or the Netherlands, Cognism’s Diamond Data is not optional. The difference in connect rate between a verified mobile and an unverified one in those markets is the difference between a functioning outbound program and a volume game you cannot win.
The GDPR angle deserves a direct statement too. All three providers process data under legitimate interest as the legal basis per GDPR Article 6(1)(f). The difference is that Cognism publishes its legitimate interest assessments publicly and maintains a dedicated compliance team. Apollo and Lusha treat this more as a checkbox. Your legal team will notice. In regulated verticals like fintech, healthcare, or legal services, it becomes a procurement blocker faster than most sales leaders expect.
For teams enriching LinkedIn data as part of a Clay-based workflow, the calculus shifts again. Neither Cognism nor Apollo is the right primary enrichment layer inside Clay. For that motion, check our guide on LinkedIn enrichment tools.
The split stack is the right answer for most scaling teams
The framing of this comparison as a straight head-to-head assumes you pick one provider and live with its tradeoffs. That is rarely how the best-run teams operate. The teams I see running the most efficient European outbound use Cognism as their European contact source (particularly for mobile numbers), Apollo as the sequencing layer and the source for US and UK email-first campaigns, and a Clay enrichment workflow to hydrate both into a clean CRM record before anything touches Salesforce or HubSpot. That is not over-engineering. It is using each tool for what it is actually good at. We rebuilt exactly this stack last quarter for a 40-person B2B SaaS team selling into DACH and Benelux, and their SDR connect rate on cold calls went from 4% to just over 9% inside 60 days.
Sources
Frequently asked questions
Is Apollo GDPR compliant for European outbound?
Apollo self-certifies GDPR compliance and relies on legitimate interest as its legal basis, but its European mobile number coverage is meaningfully thinner than Cognism's, which limits real-world reach. European legal teams often view Apollo's compliance posture as higher risk than Cognism's.
Does Cognism have better European data than Apollo?
Yes. Cognism's Diamond Data mobile verification and its dedicated European data team give it materially better verified mobile coverage in DACH, Nordics, Benelux, and UK markets than Apollo's crowdsourced dataset.
Is Lusha good for European B2B prospecting?
Lusha is useful as a LinkedIn enrichment overlay but its European database is smaller than both Cognism and Apollo, and its GDPR documentation is less detailed than Cognism's. I would not use it as a primary data source for European outbound at scale.
What is Cognism Diamond Data?
Diamond Data is Cognism's phone-verified mobile number tier where a human agent actually calls the number to confirm it is active before it is returned in the platform. Match rates are lower but connect rates are significantly higher.
Can I use Apollo and Cognism together?
Yes, many teams I work with use Cognism for European contacts requiring verified mobiles, and Apollo for global email sequencing and US prospecting, pushing both into Salesforce or HubSpot via their native integrations.
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