Best B2B Data Providers in the UK (2026)

Best B2B Data Providers in the UK (2026)

You've tried Experian - overpriced. You've tried CorpData - the data was stale before it hit your CRM. And somewhere between the bounced emails and the GDPR panic, you started wondering if anyone actually sells accurate UK business data anymore. The frustration in this r/smallbusinessuk thread captures the problem perfectly.

Here's what makes it worse: the top-ranking pages for this topic are written by Cognism and Kaspr, both conveniently concluding that their own product is best. We've tested most of these tools firsthand, and this guide exists to give you what vendor-authored listicles won't - real pricing, honest trade-offs, and actual recommendations based on how the data performs once it hits your outbound workflows.

Our Top Picks

Prospeo delivers 98% email accuracy on a 7-day refresh cycle, starting free. Cognism is the gold standard for human-verified UK mobile numbers, but you'll need £15K+ annually to get in the door. Kaspr gives solo reps a free tier and a simple Chrome-first workflow for UK and European prospecting.

The Best UK B2B Data Providers

Prospeo

Prospeo's database covers 300M+ professional profiles, 143M+ verified emails, and 125M+ verified mobile numbers - all refreshed every 7 days. That refresh cycle is the real differentiator here. The industry average sits around 6 weeks, which means by the time you're emailing a list from most providers, a meaningful chunk of contacts have already changed roles or companies. Data decay is the silent killer of outbound campaigns.

The 5-step email verification process handles catch-all domains, spam traps, and honeypots, resulting in 98% email accuracy. Real-world proof: Snyk's outbound team went from a 35-40% bounce rate to under 5% after switching. Stack Optimize built to $1M ARR with zero domain flags across all clients. Those aren't cherry-picked case studies - they're what happens when your data source actually verifies records before handing them over.

If you’re comparing options across categories, it’s also worth scanning the broader landscape of B2B databases and B2B list providers to sanity-check pricing and refresh expectations.

Search filters go deep: buyer intent across 15,000 topics powered by Bombora, technographics, job changes, headcount growth, funding signals, and department-level headcount. The Chrome extension has 40K+ users and works across company websites and professional profiles. Native integrations cover Salesforce, HubSpot, Smartlead, Instantly, Lemlist, Clay, Zapier, and Make.

Pricing is transparent and self-serve. The free tier includes 75 verified emails and 100 Chrome extension credits per month. Paid plans run roughly $0.01 per email with no contracts.

Use it if: you need verified UK emails and mobiles without a £15K contract.

Skip it if: you specifically need Cognism's Diamond Data - human-verified mobile numbers where someone has physically called each contact to confirm it.

Cognism

Cognism is a UK-based provider that built its reputation on European data quality, particularly mobile numbers. Their Diamond Data offering is the differentiator: human-verified mobile numbers where someone has actually called the number to confirm it reaches the right person. For enterprise teams running phone-heavy outbound into UK decision-makers, nothing else matches this.

If your team is doing a lot of calling, pair your data choice with tighter phone sales skills and a repeatable outbound call script so reps can actually convert the connects you’re paying for.

The platform includes intent data via Bombora, a Chrome extension, and Salesforce/HubSpot integrations. Where Cognism wins over ZoomInfo: EMEA mobile coverage and GDPR-first design. Where ZoomInfo still wins: US database depth and workflow breadth.

Pricing runs on a platform fee plus per-seat model. The Grow tier starts at a £15,000 platform fee plus ~£1,500/user/year. The higher tier jumps to £25,000 platform plus ~£2,500/user/year. A typical 5-user Grow team pays around £22,500/year; the premium tier runs closer to £37,500. Expect onboarding fees of £500-£1,500 and 10-15% annual renewal increases. Enrich Credits for CRM enrichment are sold separately in 1,000-credit increments, and many teams land in the 3,000-8,000 credits/year range depending on CRM size. Intent topics run £200-£400/topic/year, though bundling can bring that down.

Use it if: you're an enterprise team with budget for £15K+/year and need phone-verified UK mobiles.

Skip it if: you're an SMB or solo SDR. The minimum commitment prices you out.

ZoomInfo

£15,000 minimum. And that's before add-ons.

Professional tier starts at £15,000+/year for up to 3 users with 5,000 credits. Advanced runs £24,000+. Elite hits £40,000+. The real cost comes from add-ons: NeverBounce email verification (~£3,000), Global Data (~£9,995), and extra credit packs (~£3,000 per 5,000). Some teams report paying close to £50,000/year once everything's stacked. Contracts are annual-only with 60-90 day auto-renewal windows and 10-20% renewal increases.

ZoomInfo has the largest database in the space, and it's genuinely massive. But here's the uncomfortable truth for UK buyers: ZoomInfo's strength is North America. UK coverage exists, but it's secondary to their US data, and you're paying for the full global platform regardless. The ICO's enforcement tracker is worth bookmarking if you're evaluating any US-headquartered provider for UK outreach - GDPR compliance posture varies widely.

Use it if: you're enterprise with global plus UK needs and the budget to match.

Skip it if: you're UK-focused only - you're paying for North American data you won't use.

Lusha

The credit math is what catches people. One credit reveals an email. Ten credits reveal a phone number. So Lusha's free tier of 70 credits per month gives you either 70 emails or 7 phone numbers - not both at full volume. Unused credits roll over up to 2x your plan limit on monthly plans, which softens the blow slightly.

Paid plans start at $29.90/month (Pro) and $69.90/month (Premium). The Chrome extension works well, and CRM integrations are solid. Compared to ZoomInfo, Lusha is dramatically cheaper for small teams who just need contact data without the full GTM platform. But if you need mobiles at scale, the 10-credits-per-phone-number model gets expensive fast. We ran the numbers for a 3-person team pulling 200 phone numbers per month - you'd burn through a Premium plan's credits in under two weeks.

If you’re trying to reduce bounces, add a dedicated email verifier (or at least follow a basic check bounce workflow) before you scale volume.

Use it if: you want a free tier to test UK business contact data before committing any budget.

Skip it if: you need phone number volume. Credit costs compound quickly.

Kaspr

If you're a solo SDR prospecting into UK and European markets, Kaspr was built for you. Part of the Cognism Group, it's a lightweight prospecting tool with a strong Europe-first focus. The free plan includes 5 phone credits, 5 email credits, and 10 export credits per month - enough to test, not enough to run campaigns.

Paid plans run $49/user/month (Starter) and $99/user/month (Business). The workflow is Chrome extension-centric: find contacts while browsing professional profiles, export to your CRM or sequencer. Simple. It works.

Where Kaspr falls short: bulk data operations, API access, and CRM enrichment at scale aren't its strength. It's a prospecting tool, not a data platform. For teams that outgrow it, the natural upgrade path is Cognism - which is by design, since they're the same company.

Use it if: you're a solo SDR or freelancer needing affordable European contacts.

Skip it if: you need bulk data, API access, or CRM enrichment at scale.

Dealfront

Dealfront is actually two merged products - Echobot (sales intelligence) and Leadfeeder (website visitor identification) - and they're still sold as separate packages. This creates genuine confusion for buyers. The database covers 34M+ companies and 106M+ contacts with a European orientation.

Leadfeeder has a free plan identifying up to 100 companies per month. The paid tier runs EUR165/month monthly or EUR99/month annually for up to 50 identified companies per month, scaling up from there. The sales intelligence suite is custom-priced - expect £20,000-£40,000/year based on team size and usage.

If you want a deeper breakdown of packaging and true cost, see our Dealfront pricing guide.

Use it if: you want website visitor identification plus European sales intelligence from one vendor.

Skip it if: you only need contact data - you're paying for visitor ID you won't use.

BetterContact

BetterContact takes a waterfall enrichment approach, cascading your searches across multiple data sources to maximise match rates. Starter runs $15/month for 200 email credits, Pro is $49/month for 1,000 email credits, and Enterprise hits $799/month for 50,000+ credits. It's best as an enrichment layer on top of an existing database rather than a standalone prospecting tool. If you're already running Clay or a similar orchestration workflow, BetterContact slots in nicely.

If you’re building an enrichment stack, compare it against other data enrichment tools and the broader benefits of data enrichment before you commit.

Lead411

Lead411 offers something unusual at its price point: intent data powered by Bombora, bundled into a $99/month plan with 200 exports. That's significantly cheaper than getting intent signals through Cognism or ZoomInfo. The catch is coverage - Lead411 skews heavily US-focused. UK data exists but isn't its strength. Worth a look if you're prospecting both markets and want intent signals without a £15K commitment. They offer a 7-day free trial.

DataGardener

DataGardener is a UK-native specialist: 17.2M+ UK companies, 2.05M+ verified emails, and 1.3M+ validated phone numbers. As a dedicated UK contact database provider, it offers depth that global platforms struggle to match at the company level. CRM integrations for HubSpot and Salesforce are available as add-ons.

The downsides are real, though. Pricing is quote-based with no public rates. Trustpilot sits at 3.2/5 - reviewers praise the bespoke UK focus but some flag concerns around unsolicited outreach and data sourcing transparency. Good for one-off UK list builds; less suited to ongoing outbound operations if you want a self-serve workflow and frequent refresh.

Market Location

UK-native list broker with 1.7M active businesses and 750K+ decision-maker emails. They run 300K monthly update calls for data validation - an old-school approach that still has value for certain use cases. Pricing requires direct contact. No API, no real-time verification, no CRM sync. Traditional list broker model through and through.

If you’re considering them, our Market Location review breaks down the trade-offs.

Marketscan

UK-native provider covering 7M decision-makers with monthly validation cycles. Contact required for pricing - expect traditional list broker rates in the £2,000-£5,000 range for bespoke lists. No self-serve platform.

Corpdata

UK-native list broker. Contact required for pricing. A Reddit poster specifically called out outdated records - one of the providers that prompted the "data was quite old" complaint that likely brought you to this article in the first place.

UK B2B Data Pricing Compared

Let's be honest: the biggest frustration with business data providers in the UK is that half of them won't tell you what they charge. Every tool below has either a published price or our best estimate based on community discussions and comparable tools.

Watch for hidden costs: renewal uplifts of 10-20% annually at ZoomInfo and Cognism, add-on modules that double the sticker price, and credit systems where phone numbers cost 10x what emails cost.

Is Buying UK B2B Data Legal?

Buying B2B data is legal in the UK. Full stop. The question isn't legality - it's compliance, and the rules are more nuanced than most providers will tell you.

UK GDPR applies whenever you're processing personal data about business contacts. A company name and postcode alone? Not personal data. But the moment you add a named contact, job title, or firstname.lastname@ email address, you're handling personal data and need a lawful basis for processing it.

Legitimate interest is the most common basis for B2B outreach, but it requires a genuine business reason and a balancing test. PECR (Privacy and Electronic Communications Regulations) adds another layer specifically for marketing communications. The good news for B2B: you can email corporate subscribers without prior consent, as long as you clearly identify yourself and provide an opt-out mechanism. The catch: sole traders and some partnerships are treated as individual subscribers under PECR, meaning stricter consent rules apply - closer to B2C than B2B.

For phone outreach, you must screen against TPS (Telephone Preference Service) for individual subscribers and CTPS (Corporate TPS) for corporate numbers. Automated calls require prior consent regardless of subscriber type. The ICO is the regulator, and fines for non-compliance are real - they issued over £2M in penalties for unsolicited marketing in 2025 alone.

A practical compliance checklist: verify your data source is lawful, ensure role relevance (don't email the CEO about office supplies), provide clear opt-out in every communication, respect suppression lists and unsubscribes immediately, and document your legitimate interest assessment. We've seen teams skip this documentation step and regret it when an ICO inquiry lands.

For a deeper framework, see our guide to B2B compliance and what a GDPR compliant database should look like in practice.

How to Choose the Right Provider

Here's the thing: if your average contract value is under £10K, you probably don't need ZoomInfo-level data. Over 90% of UK businesses are SMBs, and most of them are better served by a self-serve tool with accurate data than an enterprise platform with features they'll never touch.

You don't need 12 providers. You need one good one and a verification layer.

Solo SDR or freelancer: Start with Kaspr's free tier for a Chrome-first workflow into UK and European contacts. It's enough to test your messaging and build initial pipeline without spending a penny.

SMB team (5-15 seats): Self-serve onboarding, no contracts, 7-day data refresh, and pricing that scales with usage rather than locking you into a platform fee - that's the sweet spot for most growing teams. Pair it with Lusha's Pro plan at $29.90/month as a second data source for cross-verification. In our experience, teams that cross-verify with two sources see 15-20% fewer bounces.

If you’re scaling sequences, it also helps to standardise your outbound email automation and keep a few high-performing drip campaign templates on hand.

Enterprise (50+ seats): Cognism or ZoomInfo, depending on geography. UK and EMEA-heavy? Cognism's Diamond Data for phone-verified mobiles is unmatched. Global with US emphasis? ZoomInfo's depth wins despite the price tag. Either way, budget £25K-£50K+ annually. Both have strong UK presence - Cognism is headquartered in London - so support and compliance alignment tend to be solid for EMEA buyers.

Among the B2B data providers in the UK we tested, the biggest differentiator wasn't database size. It was data freshness. A 300M-record database refreshed weekly outperforms a billion-record database refreshed every six weeks, every single time.

FAQ

Is buying B2B data legal in the UK?

Yes, purchasing B2B contact data is legal under UK law. UK GDPR applies when processing personal data like named contacts and business email addresses - you need a lawful basis such as legitimate interest. Company-level data alone isn't personal data. You must provide opt-out mechanisms and screen calls against TPS/CTPS registers.

Which provider has the best UK coverage?

DataGardener covers 17.2M+ UK companies - the deepest UK-native specialist by company count. For verified contact data with strong UK mobile numbers, Cognism offers human-verified Diamond Data. Prospeo covers 300M+ global profiles with a 7-day refresh cycle, making it strongest for ongoing UK prospecting where data freshness matters most.

How often should B2B data be refreshed?

Weekly refresh is the gold standard - people change roles, companies dissolve, and emails go stale constantly. The industry average is around 6 weeks, and by the time you email a 6-week-old list, 15-20% of contacts have already moved. Stale data doesn't just miss contacts - it damages your sender reputation through bounces.

Do I need consent to email UK business contacts?

Under PECR, you can email corporate subscribers without prior consent as long as you identify yourself and provide an opt-out. Sole traders and some partnerships are treated as individual subscribers, meaning stricter consent or soft opt-in rules apply. Always include an unsubscribe mechanism and honour suppression requests immediately.