B2B Data Providers in the UK: Platforms, List Suppliers and Compliance

UK teams buying B2B data face a choice: subscribe to a platform that keeps contacts current, or buy a licensed list for one campaign. Both can work, but they carry different costs, license terms and compliance checks, and the right B2B data provider in the UK depends on which one fits how you sell.

Below are 8 UK B2B data providers, grouped by how you buy from them: five platforms and three UK list suppliers. Each profile covers where the data comes from, how it's screened for UK rules, and what it costs. If you sell beyond the UK, our guide to B2B data providers in EMEA covers coverage across Europe, the Middle East and Africa.

UK B2B Data Providers Compared

A one-off list starts ageing the day it arrives, because UK contacts change jobs and businesses stop trading. ZoomInfo works from a live record instead: the GTM Context Graph joins your CRM with ZoomInfo's data into one record per account, agents keep working on it, and your team picks up the results in one workspace. Teams that would rather build can reach the same foundation through GTM.AI.

Here's how the 8 providers compare on type, fit, UK screening and how you buy.

We took prices from each provider's pricing page or checkout in November 2026, billed annually unless stated.

1. ZoomInfo

A UK list bought for one campaign shows who worked at a company on the day it was built. ZoomInfo keeps that picture current. It's the all-in-one AI GTM platform and the GTM data layer trusted by over half the Fortune 500, with 100M+ companies and 500M+ contacts, including 34M+ company profiles, 200M+ professional profiles and 45M+ mobile numbers outside North America. ZoomInfo has a UK office, with a local team to support UK customers.

Every record is validated against 40+ sources and verified by a multi-source pipeline and 300+ researchers. ZoomInfo is GDPR and CCPA compliant and holds ISO/IEC 42001 alongside its ISO 27001, ISO 27701, SOC 2 Type II and TRUSTe certifications, and ZoomInfo data sources explains how records are collected.

Three layers work as one system underneath. In the data foundation, the GTM Context Graph resolves your records and the world's into one: your CRM records, calls and emails joined with ZoomInfo's intelligence in one current record per account. The UK account your marketing team mailed last quarter and your SDRs are calling this week is the same record in both places.

Agents carry that context through the work you define, from account research and summaries to audience enrichment and custom signal routing. Their output lands in GTM Workspace with its sources attached, for a rep to review, edit and approve, while RevOps and marketing build audiences and Agent Teams in GTM Studio. It's one continuous workflow running through one system, rather than three disconnected systems passing information between each other. Developers and GTM engineers can build on the same foundation headless through GTM.AI, with MCP, API and CLI access.

For UK teams used to buying contacts in bulk, the difference is what happens after the campaign: 20+ native integrations keep enriched records current in your CRM, so the data doesn’t need buying again.

ZoomInfo is a Leader in Forrester's Marketing & Sales Data Providers evaluation and a Gartner Leader for Account Based Marketing Platforms, and it's rated 4.5 on G2. Don't just take our word for it. Test us. Run the UK accounts you already know through ZoomInfo and compare what comes back.

"We're qualifying leads faster than ever. We have all the information we need up front, including fields like job titles and company size which are not included on our webforms."

Rick Collins, Senior Marketing Systems Analyst, ConnectWise

Job titles added to94%of the 455,000 contacts ZoomInfo matched across ConnectWise's CRM

Read case study

Key features

Here's what a UK sales and marketing team gets in ZoomInfo:

• Company and contact data. 100M+ companies and 500M+ contacts, connected by 16 patented AI GTM-linkages.

• Data beyond North America. 34M+ company profiles, 200M+ professional profiles and 45M+ mobile numbers outside North America.

• Intent in search. Intent built into Advanced Search, with intent topics returned as columns.

• Signals. Billions of signals, including website visitor identification.

• Agent Teams. Agents for account research, account summaries, audience enrichment and custom signal routing.

• CRM sync. 20+ native integrations that keep enriched records current in your CRM and other systems.

• Security and compliance. GDPR and CCPA compliance, SOC 2, enterprise-grade encryption, SCIM, data access controls, a data processing agreement and role-based access controls.

Strengths

• Records stay current in your CRM, so a UK campaign never starts from an old list

• Works from each account's current state, with your CRM, calls and emails joined to ZoomInfo's data

• An Agent Team can take on a complete GTM motion, from research to CRM updates

• Headless access through GTM.AI for teams that build their own tools

Limitations

• AI credits need scoping against your real volume

• Built for teams vs. solo reps (but GTM.AI is a good option for them too)

Pricing

ZoomInfo pricing is consumption-based if you start with GTM.AI, or tailored to the package you need, and you can start with a free trial. Find out more on the ZoomInfo pricing page.

Best for: UK sales and marketing teams that want verified data kept current in their CRM, and room to grow into Europe.

2. Cognism

Cognism is a UK-headquartered sales intelligence platform, and its compliance page reads like a checklist for UK calling. It says it screens its phone data against the UK's TPS and CTPS as part of its wider Do Not Call screening, processes data under legitimate interest, and tells business contacts they're in its database within GDPR timeframes.

Cognism is ISO 27001 and ISO 27701 certified and attested for SOC 2 Type II, and says it makes millions of database updates a day. Its mobile numbers are phone-verified through Diamond Data.

Key features

Cognism's own pages describe these capabilities:

• AI search, an AI persona builder and AI company research

• Hiring, funding, M&A and job change signals

• Diamond Data phone-verified mobiles, with on-demand verification on Pro

• Integrations with Salesforce, HubSpot, Salesloft and Outreach, plus MCP and API access

Strengths

• TPS and CTPS screening on its phone data, built for UK calling

• A free data sample to check UK coverage before you buy

Limitations

• Prices sit behind a quote

• Bombora intent and on-demand mobile verification need the Pro package

Pricing

Cognism quotes two packages, Standard and Pro, each with 5 seats. Every seat gets credits: revealing a contact uses 1 credit, and viewing it again is free. CRM Enrichment is an add-on.

Best for: UK SDR teams that call mobiles every day and want TPS and CTPS screening built into the data.

Compared with ZoomInfo: Cognism is strong at phone-verified mobiles for UK and European calling. Like Cognism, ZoomInfo has a UK office and a team supporting UK customers, and it pairs global scale with European depth: 200M+ professional profiles and 45M+ mobile numbers outside North America, with every record validated against 40+ sources. See Cognism vs ZoomInfo.

3. Lusha

Lusha starts in the browser. On a LinkedIn profile, a company website or a CRM record, its extension returns the email and phone number it holds for that person, and the web app adds prospect search and list building when a rep needs a list as well as single lookups.

Lusha's trust centre lists ISO 27001, ISO 27701 and SOC 2 Type II, documented legitimate interest assessments and Article 14 notification mechanisms, and says customer personal data is mainly stored in EU regions. In our Seamless.AI alternatives test, UK and EU contacts were where Lusha performed best.

Key features

Lusha's own pages describe these capabilities:

• Lookups from LinkedIn, company websites and CRM records

• Deep Intel, which ranks accounts using your ICP, CRM history and pipeline

• Weekly buying signals on your accounts

• MCP connectors for Claude and ChatGPT, plus API access

Strengths

• Self-serve plans, so a UK rep can start free and upgrade without a sales call

• Credits are only charged when a match comes back

Limitations

• There's no built-in dialer, so callers need a separate tool

• A phone reveal uses 5 credits, against 1 for an email

Pricing

The free plan includes 40 credits a month. On 29 October 2026, Starter was $37.45 a month on yearly billing, or $49.90 monthly, with Pro, Premium and Scale above it.

Best for: UK reps who want single lookups inside LinkedIn and their CRM, on a plan they can buy themselves.

Compared with ZoomInfo: Lusha is strong at quick lookups from a browser extension. ZoomInfo checks every record against 40+ sources, and the GTM Context Graph resolves your records and the world's into one. See Lusha vs ZoomInfo.

4. Kaspr

Kaspr is a LinkedIn Chrome extension that's part of Cognism, and it publishes its prices in pounds. Open a LinkedIn or Sales Navigator profile, group or event, and Kaspr shows the emails and phone numbers it holds, ready to save to a lead list or send to your CRM.

Every plan is listed as GDPR and CCPA aligned, with a setting to hide direct emails for compliance reasons. In our test, UK mobiles came back for several contacts, and numbers on Do Not Call lists stayed hidden until we chose to reveal them.

Key features

Kaspr's own pages describe these capabilities:

• Contact details on LinkedIn profiles, groups and events, with Sales Navigator support from Starter

• Integrations with HubSpot, Salesforce, Pipedrive, Lemlist, Brevo and Zoho, plus Zapier from Starter

• CSV enrichment and enrichment automations

• Recruiter Lite support and custom member permissions on Business

Strengths

• Unlimited B2B email credits from Starter, under a fair use policy

• Business includes 200 direct email credits a month alongside 200 phone credits

Limitations

• Searches start from LinkedIn, so plan your workflow around it

• Phone credits are capped at 100 a month on Starter and 200 on Business

Pricing

The free plan gives you 15 B2B email, 5 phone and 5 direct email credits a month. Starter is £39 to £51 per user a month depending on billing, Business is £69 to £85, and Enterprise is custom. An Organization plan covers teams of 5 or more on annual billing.

Best for: UK reps and recruiters who work in LinkedIn every day and want to budget in pounds.

Compared with ZoomInfo: Kaspr is strong at revealing mobiles on LinkedIn profiles. ZoomInfo is built for European data too, with 45M+ mobile numbers and 200M+ professional profiles outside North America. See Kaspr vs ZoomInfo.

5. Apollo

Apollo combines a database of 240M+ contacts and 30M+ companies with sequences, a parallel dialer and deal tracking, so a small UK team can build a list, email it and call it without buying three tools. Apollo's own guide to European sales platforms includes the UK among its strongest fits, alongside DACH, Benelux and the Nordics.

On compliance, Apollo is SOC 2 and ISO 27001 certified and says it's GDPR compliant as a data processor and a data controller. In our test, it returned every UK phone number we requested.

Key features

Apollo's own pages describe these capabilities:

• Waterfall enrichment across 20+ vendors to fill gaps in contact data

• A parallel dialer and call recording for calling teams

• Job-change alerts, website visitor tracking and Bombora intent

• Two-way sync with Salesforce, HubSpot and Pipedrive, plus API and MCP access

Strengths

• A free plan with 75 credits a month, and per-seat prices on its site

• Find, email and call prospects from one login

Limitations

• In our test, a phone reveal used 8 credits, against 1 for an email

• Per-seat pricing adds up as a team grows

Pricing

Apollo prices each seat and adds credits on top. At checkout on 29 October 2026, Basic was $49 per seat a month on annual billing, or $65 monthly, with Professional and Custom plans above it.

Best for: UK SMBs that want prospecting data and outreach in one tool.

Compared with ZoomInfo: Apollo is strong at bundling a free plan, sequences and a dialer. ZoomInfo covers 100M+ companies and 500M+ contacts, with agents and CRM sync on the same platform. See Apollo vs ZoomInfo.

6. Market Location

Market Location is a UK data supplier that has been building business data since the 1970s and is part of the 118 Group. It starts from a known gap in UK company data. As Market Location points out, Companies House lists over 5 million registered UK organisations, and many are dormant shells, dissolved entities or holding companies. Market Location says it makes over 2 million verification calls a year from a 70-seat UK call centre to find the businesses that actually trade.

It sells two contact sets on top of that: Precision Contacts, 1.5 million senior decision-makers each validated by phone, and Reach Contacts, 3.5 million contacts across a wider range of roles, filtered for corporate email use under PECR and GDPR.

Key features

Market Location's own pages describe these capabilities:

• Telemarketing selections screened against the TPS and CTPS, and postal records with validated addresses

• BiziReach for list building with 130+ filters, and LeadsStream for website visitor identification

• CRM matching and enrichment against its verified business universe, done by a specialist team

• Specialist datasets for fast-growing businesses, brand new businesses, technology users and importers and exporters

Strengths

• Every business is contacted at least once every 12 months, with changes applied within 24 hours

• ISO 27001, ISO 27701 and Cyber Essentials certified, ICO registered and a DMA member

Limitations

• Its data is built around UK businesses, so check coverage if you also sell abroad

• Pricing is by quote after a count

Pricing

Market Location gives a free data count, then prices each selection by quote. Data is available as a one-off dataset or a subscription.

Best for: UK telemarketing and direct mail teams that want decision-makers confirmed by a real person.

Compared with ZoomInfo: Market Location is strong at telephone-verified UK decision-makers. ZoomInfo validates every record against 40+ sources and verifies it with a multi-source pipeline and 300+ researchers.

7. Marketscan

Marketscan is a UK B2B data supplier with over 40 years of experience. Its Megabase blends three UK data sources into one file, taking in over 8 million records a month and keeping the most recent version where records overlap.

Every record goes through 40 quality checks a month, including Royal Mail PAF address checks and SIC coding, and the whole database is checked against the TPS and CTPS registers daily.

Key features

Marketscan's own pages describe these capabilities:

• Postal, email and telephone data lists from the Megabase

• Marketscan Edge, an email platform for sending campaigns to the lists you licence, with set-up help from its team

• Data cleansing, analytics and consultancy

• Its own business classification code alongside SIC codes

Strengths

• A 98% deliverability warranty on postal data and 90% on email data

• Daily TPS and CTPS checks across the whole database

Limitations

• It's built around licensed campaign lists, so plan regular cleansing to keep records current

• Its database covers British businesses, so check coverage if you also sell abroad

Pricing

Marketscan sells lists online and through its account team, which runs counts for your selection before you buy.

Best for: UK marketing teams running postal and email campaigns to multi-sourced lists.

Compared with ZoomInfo: Marketscan is strong at multi-sourced lists for postal and email campaigns. ZoomInfo keeps records current in your CRM, so you don’t buy the same list again for the next campaign.

8. Prospect360

Prospect360 is a UK list broker with more than 6 million verified business, consumer and public sector contacts. It works with a select group of list owners and builds each list around your sector, with 73 business sector lists and 15 public sector datasets covering the NHS, education, local government and housing associations.

Its records are refreshed several times a month through telephone and desk research. Postal records are screened against the MPS, phone numbers against the TPS, and email records are verified before delivery, in line with GDPR and PECR.

Key features

Prospect360's own pages describe these capabilities:

• Email, telephone and postal data for named decision-makers across UK sectors

• Nearly 50 financial fields, plus fleet, energy and premises data

• Public sector lists for the NHS, schools, councils and housing associations

• TPS cleansing, data cleansing and data appending services

Strengths

• Every B2B list comes with a 12-month multiple-use licence

• A free count and a sample before you buy, with an accuracy guarantee shown on each list's page

Limitations

• Lists are campaign files, so records need refreshing once the licence ends

• Prices are by quote

Pricing

Prospect360 runs a free count and quote for each list, and you pay only for the fields and volume you need.

Best for: UK teams selling into specific sectors or the public sector that want a ready-made list.

Compared with ZoomInfo: Prospect360 is strong at sector and public sector lists. ZoomInfo's Advanced Search filters across company, contact and signal data, with intent topics returned as columns.

Buying a UK Data List vs. Subscribing to a Platform

UK B2B data is sold in two very different ways, and the choice shapes your costs and compliance work.

Licensed lists

List suppliers such as Market Location, Marketscan and Prospect360 sell a selection built for one channel, whether that's email, telemarketing or post. You get a free count, pay for the records and fields you choose, and use them under a licence. Prospect360's B2B lists, for example, come with a 12-month multiple-use licence. Lists suit one-off campaigns, sector mailings and public sector targeting.

Platforms

Platforms such as ZoomInfo, Cognism, Lusha, Kaspr and Apollo give your team ongoing access, so reps search, reveal and sync contacts as they work. Records stay connected to your CRM, which matters because B2B data decays as people change roles. Platforms suit teams that prospect every day.

Some teams combine them, using a platform for daily prospecting and enrichment and a licensed list for a specific direct mail or sector campaign.

UK Rules for B2B Data, Channel by Channel

Named business contacts are personal data under UK GDPR, so any provider you use should explain where its data comes from and its legal basis. PECR adds rules for electronic marketing, and preference services cover phone and post:

• Email. You can usually email employees at limited companies and other corporate bodies without prior consent, as long as you identify yourself and offer an opt-out. Sole traders and some partnerships are treated like individuals, so they need consent unless the soft opt-in applies.

• Phone. Before cold calling, screen numbers against the Telephone Preference Service (TPS) for individuals, sole traders and partnerships, and the Corporate Telephone Preference Service (CTPS) for companies.

• Post. PECR doesn't cover post, but UK GDPR still applies, and suppliers screen consumer addresses against the Mailing Preference Service (MPS).

The ICO enforces these rules, so check that your provider is registered and can show how it screens each channel. Our guide to UK B2B data privacy compliance and our GDPR compliance guide cover the wider rules. This isn't legal advice, so check your plans with your legal team.

How to Choose a UK B2B Data Provider

Use these checks to compare providers on the same terms:

• Ask for a count and a sample. Market Location and Prospect360 offer a free count, and Prospect360 offers a sample. Run any sample against accounts you already know to check accuracy.

• Check how records are verified. Ask whether contacts are confirmed by phone, by software or both, and how often each record is rechecked.

• Confirm the screening. Telemarketing data should be checked against the TPS and CTPS, and email data should separate corporate addresses from sole traders.

• Read the licence. Check how long you can use the data, how many times, and what happens when the licence ends.

• Plan for your CRM. If the data needs to stay current, check how it syncs with your CRM and how enriched records are updated.

Our compliance questions for data vendors go deeper, and for a wider shortlist, see the best B2B data platforms and our ZoomInfo alternatives comparison.

Want to test ZoomInfo against the UK accounts you sell to? Book a demo.

Frequently Asked Questions

Who provides compliant B2B data in the UK?

Platforms such as ZoomInfo, Cognism, Lusha, Kaspr and Apollo, and list suppliers such as Market Location, Marketscan and Prospect360, all sell UK B2B data. Credit reference agencies sell prospect data too, such as Experian's Business Prospect Profile and Creditsafe's Lead Generator, which add company financials and credit risk. Compliance depends on how each one sources and screens its data, so ask about its legal basis, TPS and CTPS screening and ICO registration before you buy.

Are UK B2B data providers compliant with GDPR?

Reputable UK B2B data providers process business contact data under UK GDPR, usually relying on legitimate interest, and explain how they source it. Check each provider's privacy information, how it handles opt-outs and how it screens phone numbers, because you're also responsible for how you use the data.

Is buying B2B email data legal in the UK?

Buying B2B email data can be lawful in the UK. Under PECR, you can usually email employees at limited companies and other corporate bodies without prior consent if you identify yourself and offer an opt-out, while sole traders and some partnerships need consent unless the soft opt-in applies. Use a provider that separates the two, and check your plans with your legal team.

What should I look for in a UK B2B data provider?

Look for a clear explanation of data sources, verification by phone or research, TPS and CTPS screening, ICO registration and a free count or sample. Then check the licence terms, and whether the data stays current in your CRM or needs buying again for each campaign.

Who supplies B2B email data for UK SMEs?

UK SMEs can buy B2B email data from list suppliers such as Market Location, Marketscan and Prospect360, or use self-serve platforms with free plans such as Lusha, Kaspr and Apollo. For a team that prospects every day, a platform such as ZoomInfo keeps records current in your CRM, and you can start with a free trial.

Where can I buy accurate UK B2B contact data?

Start by asking each provider for a free count or sample, then test it against accounts you already know. Market Location says it verifies businesses by phone at least once every 12 months, Marketscan offers deliverability warranties, and ZoomInfo validates every record against 40+ sources and verifies it with a multi-source pipeline and 300+ researchers.