Who are the best B2B data providers in the UK?

For UK teams we rank Cognism first for its phone-verified mobiles and GDPR-first compliance, followed by Lusha and Kaspr for affordable self-serve access, then Apollo and ZoomInfo for depth and all-in-one features, though both are US-anchored with weaker UK accuracy.

What's the most GDPR-compliant B2B data provider?

Cognism markets itself as the most compliant: it processes data under legitimate interest, notifies contacts under Article 14, screens against Do-Not-Call lists across 15+ jurisdictions (including UK TPS/CTPS), and holds ISO 27001/27701 and SOC 2. Always confirm your own lawful basis before outreach.

What's the cheapest way into B2B data in the UK?

Self-serve tools are the cheapest entry: Lusha, Kaspr and Apollo all offer free plans and published pricing from around £40–£50 per user per month, so you can test data quality before paying. Sales-led tools like Cognism and ZoomInfo start in the five figures a year.

Who are the best B2B data providers in the UK?

For UK teams we rank Cognism first for its phone-verified mobiles and GDPR-first compliance, followed by Lusha and Kaspr for affordable self-serve access, then Apollo and ZoomInfo for depth and all-in-one features, though both are US-anchored with weaker UK accuracy.

What's the most GDPR-compliant B2B data provider?

Cognism markets itself as the most compliant: it processes data under legitimate interest, notifies contacts under Article 14, screens against Do-Not-Call lists across 15+ jurisdictions (including UK TPS/CTPS), and holds ISO 27001/27701 and SOC 2. Always confirm your own lawful basis before outreach.

What's the cheapest way into B2B data in the UK?

Self-serve tools are the cheapest entry: Lusha, Kaspr and Apollo all offer free plans and published pricing from around £40–£50 per user per month, so you can test data quality before paying. Sales-led tools like Cognism and ZoomInfo start in the five figures a year.

Ranked · UK · Updated June 2026

The best B2B data providers in the UK

In short

For UK teams, Cognism leads on phone-verified mobiles and GDPR compliance, while Lusha and Kaspr are the cheaper, self-serve ways in. Apollo and ZoomInfo bring depth and all-in-one features but are US-anchored, with weaker UK accuracy and higher cost. Here's how the five compare on our rubric.

1

Cognism

GDPR-first sales intelligence with phone-verified mobile numbers, strongest across the UK & EMEA.

8.1 /10

The strongest UK and EMEA option: phone-verified "Diamond" mobiles, the deepest UK coverage, and a compliance-first posture. The catch is sales-led, annual-only pricing, fine for funded teams, steep for small ones.
- Entry price ~£12,000/yr
- Pricing Demo-gated
- Free plan No
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2

Lusha

Self-serve B2B contact data with a one-click Chrome extension and transparent, published pricing.

7.3 /10

The easiest self-serve way into UK contact data: a one-click Chrome extension, transparent published pricing and a free plan. Reliable UK email and direct dials; just watch the 10-credits-per-phone model.
- Entry price from $449/yr
- Pricing Published
- Free plan Yes
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3

Apollo

All-in-one prospecting (database, sequencer and dialer) at a fraction of the enterprise price, strongest in the US.

7.4 /10

The best value if you want a database, sequencer and dialer in one tool. It's strongest in the US, though; UK data accuracy is the weak spot independent tests flag, so verify before high-volume outreach.
- Entry price from $588/yr
- Pricing Published
- Free plan Yes
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4

Kaspr

LinkedIn prospecting with one-click mobile and email reveals, strongest across Europe, backed by Cognism.

7.0 /10

A budget, LinkedIn-first prospecting tool with strong European mobile data and a genuine free plan. Note the €240k CNIL fine over its data sourcing, a real compliance caveat for regulated UK teams.
- Entry price from £468/yr
- Pricing Published
- Free plan Yes
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5

ZoomInfo

The deepest US B2B database, with intent, visitor-ID and enrichment in one platform, at an enterprise price.

7.3 /10

The deepest database of the five, with intent and visitor-ID built in, but US-anchored, the most expensive, and demo-gated. Best for UK enterprises with budget; overkill for most SMB teams.
- Entry price ~$14,995/yr
- Pricing Demo-gated
- Free plan No
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Every score comes from the same rubric, applied identically. See the consolidated pricing table for all providers side by side , or check whether buying B2B data is legal in the UK .

Frequently asked questions

Who are the best B2B data providers in the UK?: For UK teams we rank Cognism first for its phone-verified mobiles and GDPR-first compliance, followed by Lusha and Kaspr for affordable self-serve access, then Apollo and ZoomInfo for depth and all-in-one features, though both are US-anchored with weaker UK accuracy.
What's the most GDPR-compliant B2B data provider?: Cognism markets itself as the most compliant: it processes data under legitimate interest, notifies contacts under Article 14, screens against Do-Not-Call lists across 15+ jurisdictions (including UK TPS/CTPS), and holds ISO 27001/27701 and SOC 2. Always confirm your own lawful basis before outreach.
What's the cheapest way into B2B data in the UK?: Self-serve tools are the cheapest entry: Lusha, Kaspr and Apollo all offer free plans and published pricing from around £40–£50 per user per month, so you can test data quality before paying. Sales-led tools like Cognism and ZoomInfo start in the five figures a year.