Best B2B Data Providers in the UK for 2026

Best B2B Data Providers in the UK for 2026

Your SDR team just ran a campaign to 2,000 UK contacts and 400 bounced. That's a 20% bounce rate, a torched sender domain, and a week of pipeline generation wasted. The problem isn't your messaging or your ICP - it's your data.

Choosing the right B2B data provider for UK teams matters more than any other decision in your outbound stack. An independent benchmark testing 9 phone data providers found accuracy ranging from just 63% to 91% across 307 verified contacts. Vendor claims of "95%+ accuracy" don't survive contact with reality.

The UK market makes this worse. Around 250,000 UK companies cease trading every year, and many data providers refresh their records every 30-90 days. That gap between reality and your database is where bounces, wrong numbers, and wasted rep time live. A Reddit thread on UK B2B data providers summed it up bluntly: Experian was described as "very over-priced," and CorpData as "quite old."

Picking the right provider isn't about who has the biggest global database. It's about who has accurate, fresh UK data, transparent pricing, and a compliance posture that won't get you fined under PECR - the regulation that actually gets enforced in the UK. Hint: it's not GDPR.

Our Picks (TL;DR)

Here's the thing: if your average deal size sits below £10k, you almost certainly don't need Cognism or ZoomInfo-level data. A self-serve tool at £500-£3,000/year will cover a 3-5 person outbound team and deliver better UK accuracy than most enterprise platforms charging 10x more.

Best UK B2B Data Providers

Prospeo

Prospeo's database covers 300M+ professional profiles with 143M+ verified emails and 125M+ verified mobile numbers. The standout stat is 98% email accuracy, backed by a proprietary 5-step verification process that includes catch-all handling, spam-trap removal, and honeypot filtering. At roughly $0.01 per email versus ZoomInfo's ~$1 per lead, the cost-accuracy ratio isn't close.

What makes Prospeo the strongest pick for UK teams is the 7-day data refresh cycle - the industry average is six weeks. When hundreds of thousands of UK companies fold annually, that difference is the gap between a 5% bounce rate and a 20% bounce rate.

For RevOps teams running automated enrichment workflows, the APIs deliver a 92% match rate and return 50+ data points per contact. On enrichment, 83% of leads come back with contact data. The platform includes 30+ search filters covering buyer intent powered by 15,000 Bombora topics, technographics, job changes, and funding signals. The Chrome extension with 40,000+ users lets you prospect directly from company websites and professional profiles.

Two proof points worth calling out. Snyk deployed Prospeo across 50 AEs and dropped their bounce rate from 35-40% to under 5%, with AE-sourced pipeline jumping 180%. Stack Optimize built from $0 to $1M ARR using Prospeo data, maintaining 94%+ deliverability and sub-3% bounce rates across all clients.

Pricing is fully transparent: around £0.01 per email, 10 credits per mobile number. The free tier gives you 75 emails and 100 Chrome extension credits monthly. No contracts, no sales calls, no annual lock-in. If you need a built-in dialer or sequencing tool, pair it with outbound email automation tools like Instantly or Lemlist.

Cognism

If your outbound strategy depends on phone-verified mobile numbers at scale, Cognism is the provider to evaluate. Their Diamond Data programme uses human researchers to verify direct dials, and their EMEA coverage is genuinely strong. The platform includes Bombora intent data and integrates with major CRMs and sequencers.

The price tag matches the enterprise positioning. A 5-user Grow plan runs ~$22,500/year, and Elevate jumps to ~$37,500/year. Add onboarding fees of $2k-$5k and enrichment credits, and you're looking at $25k-$45k annually. The "unlimited" exports are governed by fair-use caps - expect around 2,000 records per user per month in practice. Annual contracts are the norm.

Skip Cognism if you're a team of 2-3 reps with a sub-£15k annual data budget. The minimum commitment is steep for small teams, and you won't use enough of the platform to justify the spend.

ZoomInfo

ZoomInfo is the default enterprise data platform, and for US contacts, the database depth is hard to beat. But for UK teams, user sentiment consistently points to weaker European data quality compared to US coverage.

The pricing tells the story. Professional starts at $15k-$18k/year, Advanced typically runs $22k-$28k, and Elite hits $35k-$45k+. Then add Global Data at $9,995, NeverBounce at $3,000, and extra credits at ~$3,000 per 5,000. Some teams report paying close to $50,000 annually once everything's included. Renewal increases of 10-20% are common, and G2 reviews frequently mention surprise cost jumps at renewal.

The Credit Math Trap: Lusha

Most people discover Lusha's pricing gotcha after they've signed up. The free plan gives you 70 credits per month, and the Chrome extension makes one-off lookups fast. Sounds generous - until you learn that 1 credit reveals an email, but a phone number costs 10 credits. So your 70 free credits get you either 70 emails or 7 phone numbers. Not both.

Paid plans - Pro at ~$30/mo, Premium at ~$70/mo - add more credits, and unused credits roll over up to 2x your limit. Lusha works well as a lightweight lookup tool for individual contributors doing targeted research, not bulk list building. A team of 5 reps burning through phone credits will outgrow Lusha's pricing model within a quarter.

Kaspr: GBP Pricing, No Guesswork

For UK teams tired of converting USD prices and guessing at exchange rates, Kaspr is refreshingly straightforward. The Starter plan runs £39/user/month on annual billing with unlimited B2B emails and 1,200 phone credits per year. Business is £69/user/month with 2,400 phone credits. Add-on phone credits scale from £0.29 each for 250 credits down to £0.17 each for 10,000 credits.

The free tier is modest - 15 B2B email and 5 phone credits monthly - but enough to test data quality. Kaspr is EU-focused and strong for professional-profile-based prospecting. Skip it if you need deep intent data or advanced enrichment workflows; it's a prospecting tool, not a full data platform.

Dealfront (Leadfeeder)

Dealfront is a different category entirely. It identifies companies visiting your website, not individual contacts. If you're running ABM and want to know which accounts are showing buying signals on your site, it's useful. If you need outbound contact lists, look elsewhere.

The free tier tracks 100 companies with 7 days of data storage. Paid plans run €99-€1,199/month based on identified companies. Watch the per-domain pricing - if you run multiple websites, costs multiply fast.

Apollo.io: Big Database, US-First

Apollo's 275M contacts and 73M accounts make it one of the largest databases available, and the free tier is genuinely generous. Paid plans start at ~$49/user/month on annual billing. The all-in-one approach - database, sequencing, dialer - appeals to US-focused teams who want everything in one place.

For UK data specifically, expect gaps. Email accuracy benchmarks put Apollo at 79%, which is a meaningful gap versus providers built for European markets. We've seen UK-focused teams pilot Apollo and end up supplementing it with a second provider within a few months, which defeats the cost savings.

BetterContact

BetterContact takes a waterfall enrichment approach, cascading through multiple data sources to maximize coverage for each contact. Pricing is accessible: Starter at $15/month for 200 email credits, Pro at $49/month for 1,000 credits, Enterprise at $799/month. They claim >99.5% accuracy, but no independent benchmark backs that up. Test their UK coverage depth with a pilot list before going all-in.

DataGardener

A UK-specific company intelligence platform built on Companies House data. Best for teams needing UK company financials and firmographics rather than contact details reps can dial or email directly. Pricing isn't public, but expect £2,000-£10,000/year based on similar UK data platforms.

Corpdata

A traditional UK list broker. Reddit threads have flagged their data as "quite old." No public pricing, but traditional list brokers typically charge £0.10-£0.50 per contact record. If you're considering Corpdata, request a sample file and verify freshness before buying.

UK B2B Data Pricing Compared

Finance flagged your £25,000 ZoomInfo renewal - and your team only exported 3,000 contacts last quarter. That's ~£8.33 per contact. Here's how the market actually stacks up:

The credit math trap is real. Lusha's 70 free credits sound generous until you realize that's 7 phone numbers. Cognism's "unlimited" exports cap at roughly 2,000 records per user per month. ZoomInfo's Professional tier includes just 5,000 annual credits - additional blocks cost ~$3,000 per 5,000.

Prospeo and Kaspr are the two UK-relevant options that are fully self-serve and transparent end-to-end, with no "talk to sales" gate to get started. If you're comparing broader options beyond the UK, start with this list of B2B databases.

How Accurate Is UK B2B Data?

When a vendor tells you their data is "95% accurate," ask how they measured it. Most don't have an answer.

The Cold Call Benchmarks report tested 9 phone data providers across 307 verified contacts and found accuracy ranging from 63% to 91%. Coverage - the percentage of contacts returned with a valid number - ranged from 26% to 92%. That's an enormous spread, and it means your choice of provider can literally double your connect rates.

Email accuracy follows a similar pattern. The difference is verification depth: multi-step verification including catch-all handling, spam-trap removal, and honeypot filtering is what pushes accuracy to 98% and keeps your sender domain healthy.

Data freshness is the other half of the equation. A database refreshed every 6 weeks is already stale by the time you export. Weekly refresh cycles are the gold standard - that cadence is the difference between a 5% bounce rate and a 20% bounce rate. In our experience testing providers for UK campaigns, teams that switch from a 30-day refresh provider to a weekly one see bounce rates drop by 60-70% within the first month.

Don't trust any vendor's accuracy claims at face value. Run a pilot with 200-500 contacts from your actual ICP before signing an annual contract. It's the cheapest insurance you'll ever buy.

UK Compliance: What "GDPR-Compliant" Actually Means

Look, every B2B data provider says they're "GDPR-compliant." Most of them are glossing over the regulation that actually bites: PECR.

The Privacy and Electronic Communications Regulations govern how you contact people - email, phone, text. GDPR governs the data itself. You need to comply with both, and they have different rules.

The critical distinction is between corporate subscribers and individual subscribers. If you're emailing someone at a Ltd company, LLP, or Scottish partnership, PECR's electronic mail rules don't apply - you can send unsolicited B2B email to corporate subscribers without consent. But sole traders and some partnerships are treated as individuals. Email them without consent and you're in breach.

For phone calls, you must screen against the TPS and CTPS registers regardless of whether you're calling a corporate or individual subscriber. Identify yourself, display your number, and respect opt-outs.

The enforcement numbers are sobering. Between 2019 and September 2025, the ICO issued 119 PECR fines totaling ~£10.5m - compared to roughly 16 UK GDPR fines in the same period. PECR has a lower enforcement threshold and gets enforced far more frequently. As of 19 June 2025, the Data (Use and Access) Act made things stricter: communications now count as marketing even if they don't reach the recipient, and PECR penalties have been aligned with UK GDPR maximums - up to £17.5m or 4% of global turnover.

5 Compliance Questions to Ask Any Provider

1. Do you screen contacts against TPS/CTPS before including phone numbers?
2. Can you distinguish corporate subscribers from sole traders in your data?
3. What's your lawful basis for processing named contact data under UK GDPR?
4. How do you handle opt-out requests, and what's your suppression turnaround?
5. Do you provide a Data Processing Agreement, and is it UK GDPR-specific?

If a provider can't answer these clearly on a demo call, walk away.

How to Evaluate a UK B2B Data Provider

Before you sign anything, run every provider through this five-point framework. Frame these as questions for your demo call.

UK coverage depth. Ask for UK-specific record counts, not global totals. A provider with 275M global contacts might have 3M UK records - or 30M. The global number tells you nothing. Ask for a breakdown by country, industry, and seniority level.

Data freshness. Ask about their refresh cycle in days, not vague language like "regularly updated." If they can't give you a number, assume it's 30+ days. Weekly refresh is the gold standard; anything over 6 weeks is a red flag for UK data given the rate of company turnover.

Pricing transparency. If they won't show pricing on their website, expect a long sales cycle, contract lock-in, and renewal increases. The providers with public pricing tend to be the ones that don't need to trap you in a contract.

Compliance posture. Do they screen against TPS/CTPS? Can they explain their lawful basis for processing UK personal data? Do they distinguish corporate from individual subscribers? These aren't nice-to-haves - they're legal requirements. For a deeper framework, see our guide to B2B compliance.

Integration fit. Check CRM connectors for Salesforce and HubSpot, sequencer integrations with tools like Lemlist, Instantly, and Outreach, plus API access and export formats. The best data in the world is useless if it takes 45 minutes to get it into your workflow. If you're building automated workflows, start with CRM automation software and a dedicated data enrichment layer.

FAQ

Is it legal to buy B2B data in the UK?

Yes, with conditions. B2B email to corporate subscribers (Ltd, LLP, Scottish partnerships) doesn't require consent under PECR. Sole traders are treated as individuals and do require consent. You always need a lawful basis under UK GDPR - legitimate interest is most common, but you must document it.

How much does a UK B2B data provider cost?

It ranges from free - Prospeo, Lusha, and Kaspr all offer free tiers - to £40,000+/year for enterprise platforms like ZoomInfo and Cognism. Most SMB teams spend £500-£3,000/year on self-serve tools, which comfortably covers a 3-5 person outbound team.

Why is my B2B data bouncing so much?

Almost certainly stale data. UK company turnover is high - hundreds of thousands fold each year - and many providers refresh every 6+ weeks. Look for weekly refresh cycles and real-time email verification. Run a pilot with 200-500 contacts before committing to any annual contract.

What's the difference between GDPR and PECR?

GDPR governs personal data processing - how you collect, store, and use contact information. PECR governs the communication channel - email, phone, text. You can be fully GDPR-compliant but still breach PECR by emailing a sole trader without consent or calling someone on the TPS register.

What's a good free alternative to ZoomInfo for UK prospecting?

Prospeo's free tier (75 emails + 100 Chrome extension credits/month) offers the best accuracy-to-cost ratio at 98% email verification. Kaspr's free plan gives 15 email and 5 phone credits. Apollo also has a generous free tier, but UK email accuracy benchmarks at 79% - test before scaling.