UK B2B data built for reachability, not just record count.
Access UK business and contact data, human-verified direct dials, custom ICP research and enrichment built around the prospects your sales team actually needs to reach.
A UK B2B data provider built around usable data
Cloudlead is a UK B2B data provider that starts with your ICP, then sources, verifies and delivers the data around it. It reports 40M+ UK business and contact records and 3M+ company records, applies human quality checks and call verification where needed, and returns structured, CRM-ready data for outbound sales teams.
A large database is only useful if it contains the companies, people and contact information your team can actually use. Cloudlead starts with the ICP, then sources, verifies and delivers the data around it.
The UK is a large B2B market, but it is overwhelmingly an SME market.
The UK is a large B2B market dominated by SMEs: there were approximately 5.7 million private-sector businesses at the beginning of 2025, most of them small. Addressable markets therefore differ sharply by ICP, so the useful question is not how much UK data a provider has, but how much usable data it has for your exact UK ICP.
There were approximately 5.7 million private-sector businesses in the UK at the beginning of 2025, with the vast majority classified as small businesses.
That means a payroll platform selling to companies with 20–200 employees and an enterprise cybersecurity vendor targeting FTSE-scale organisations are working with completely different addressable markets.
Target beyond standard filters
Cloudlead can segment UK business data around criteria such as:
- Company size, industry and geography
- Job title, department and seniority
- Professional and firmographic information
- Target-account lists and known profiles
- Custom attributes that do not exist as standard database fields
Example brief:
Phone number found does not mean prospect reachable.
A phone number in a database does not mean the prospect is reachable. Cloudlead's human-verification workflows can include physically dialling numbers and using call outcomes, such as live pickups, confirmed voicemail and current-role checks, to classify contact data. That shifts rep time away from disconnected lines, switchboards and people who have moved companies.
Most databases answer one question: “Do we have a phone number?”
Cloudlead is interested in the next question: “What happens when somebody actually dials it?”
Human-verification workflows can include physically dialling numbers and using call outcomes to help classify contact data rather than treating every populated phone field equally.
- Live pickup activity
- Confirmed voicemail information
- Current-role and contact checks
- Call outcome signals
- Human verification where extra confidence is required
Your real inventory is reachable prospects
A list of 5,000 phone numbers does not give your sales team 5,000 opportunities to speak with buyers.
Weak data forces reps to spend time on disconnected lines, switchboards, people who have moved companies and irrelevant numbers.
Better data shifts more of that time back towards actual conversations.
Read a customer case study →dial-to-connect rate
Oliver Knowles shared several days of calling performance using Cloudlead for data enrichment and human verification.
Measure what happens after the data leaves the spreadsheet.
Measure B2B data by what happens when your team dials it. UK customer Oliver Knowles shared a 19.2% dial-to-connect rate across 604 dials using Cloudlead data enrichment and human verification. Cloudlead reports 15% to 30% connect rates for verified direct dials and more than 500,000 connected conversations, though results vary by audience and campaign.
Oliver called the broader dataset, including records categorised as possible connections, rather than only numbers that had previously been confirmed as pickups.
Oliver Knowles · Shared publicly on LinkedIn
Cloudlead currently reports 15% to 30% connect rates for verified direct-dial data depending on campaign conditions and segment, and has delivered more than 500,000 connected conversations through verification and outbound-data programmes.
Connect rates vary by audience, timing, dialling method, geography and campaign. They should be evaluated on a sample of your own ICP rather than treated as a universal guarantee.
British business culture tends to reward specificity over unnecessary hype.
UK B2B outreach tends to work better when it is specific, relevant and restrained rather than hyped. Effective UK outreach shows clear relevance, credible evidence and concise messaging that gives prospects a straightforward reason to respond. A message tied to real business context feels more natural than exaggerated claims of a revolutionary solution guaranteed to transform a sales organisation.
There is no single “British buyer”, but outreach should not be completely geography-agnostic. UK professional communication often benefits from restraint, relevance and a clear reason for contacting someone.
“We're the world's most revolutionary AI-powered solution guaranteed to transform your sales organisation.”
“Noticed you're building the outbound team. We help sales teams improve the percentage of dials that actually reach the intended prospect. Worth comparing against what you're using?”
Clear relevance
Know why the company and contact belong in the campaign before the sequence starts.
Credible evidence
Use useful proof and clear business context instead of exaggerated positioning.
Concise outreach
Give prospects a straightforward reason to respond without overloading the message.
UK business data, contact sourcing and enrichment for multiple outbound use cases.
Cloudlead provides UK business data across eight categories: contact data such as work emails, direct dials and mobile numbers; company and firmographic data; professional information; verified outbound phone data with call verification; data enrichment; bespoke ICP research; TAM research identifying UK companies and contacts in a defined market; and CRM enrichment for incomplete or outdated records.
| Data category | Examples |
|---|---|
| Contact data | Name, role, seniority, work email, direct dial and mobile number |
| Company data | Company name, industry, employee range, location and firmographic information |
| Professional information | Current role, department, seniority and professional profiles |
| Outbound data | Verified phone data, call verification and contact bucketing |
| Data enrichment | Missing emails, phone numbers, company information and contact updates |
| ICP research | Bespoke criteria that cannot easily be selected using standard database filters |
| TAM research | Identifying UK companies and contacts matching a defined market |
| CRM enrichment | Updating incomplete, inaccurate or outdated CRM records |
You may not need another database.
Many UK teams do not need another database; they need to enrich the one they already own. CRM records in Salesforce, HubSpot or elsewhere decay as prospects change companies, roles change, numbers go missing and emails stop validating. Cloudlead can add or refresh work emails, direct dials, current roles, firmographics and custom company attributes.
You may already have thousands or millions of records inside Salesforce, HubSpot or another CRM. The problem is that those records do not remain static.
- A prospect changes companies
- A Sales Director becomes CRO
- A mobile number is missing or changes
- An email no longer validates
- A company grows into, or out of, your ICP
Enrich the data you already own
Cloudlead can add or refresh:
When five database filters are not enough.
When standard database filters cannot describe your market, custom ICP and TAM research fills the gap. Cloudlead can identify companies by business model or customer structure, research organisations with niche qualitative characteristics that are not available as dropdown filters, and combine company, persona and research criteria to build the audience you actually want.
Standard databases work well when your market can be described with standard fields. Real ICPs are often more complicated.
Business-model criteria
Identify companies operating with a particular commercial model or customer structure.
Niche market signals
Research organisations fitting qualitative characteristics that are not available as dropdown filters.
Complex combinations
Combine company, persona and research criteria to build the audience you actually want.
Compliance deserves more than a “GDPR compliant” badge.
UK B2B outbound must consider both UK GDPR and PECR. PECR can treat corporate subscribers differently from sole traders and some partnerships, but UK GDPR can still apply where data identifies an individual. Telephone outreach also involves previous objections and TPS and CTPS screening where applicable. Buying data does not outsource your compliance responsibilities.
UK organisations conducting B2B outbound need to consider both UK GDPR and the Privacy and Electronic Communications Regulations (PECR).
PECR can treat corporate subscribers differently from sole traders and some partnerships. Where personal data identifies an individual, UK GDPR can still apply.
Telephone outreach also has separate considerations, including previous objections and relevant screening requirements such as TPS and CTPS where applicable.
Buying data does not outsource compliance.
Your privacy or legal team should understand:
- Where the data came from
- What information is being processed
- How it will be used
- Which communication channel will be used
- Which rules apply to your outreach
- How objections and opt-outs are managed
This page provides general information and does not constitute legal advice.
Cloudlead's relationship with the UK goes back years.
Cloudlead's UK relationship goes back to 2018, when it attended the Sales Innovation Expo at ExCeL London. It has continued working with customers and outbound teams across the United Kingdom, offering custom UK ICP targeting and prospect research, human-assisted direct-dial verification and the option for customers to work directly with its researchers.
Cloudlead attended the Sales Innovation Expo at ExCeL London in 2018 and has continued working with customers and outbound teams operating across the United Kingdom.
What to look for in B2B data providers in the UK.
When choosing a UK B2B data provider, test your actual ICP, separate company coverage from contact coverage, ask how phone data is verified, measure connect rates, check that roles are current and calculate cost per usable record. A bigger database does not automatically make a better provider; what matters is what happens after export.
A bigger database does not automatically make a better provider. Evaluate what happens after the record is purchased or exported.
Test your actual ICP
Give providers real target accounts or personas and compare what they return.
Separate company and contact coverage
Ten contacts at one company should not be described as ten companies.
Ask how phone data is verified
Sourced, inferred, validated and live-dialled numbers are not equivalent.
Measure connect rates
If calling matters, evaluate how many dials lead to real conversations.
Check current roles
A valid number for somebody who has changed companies is still bad sales data.
Measure cost per usable record
Cheap data becomes expensive when SDRs spend hours cleaning it.
More than another UK contact database.
Cloudlead differs from a typical self-service UK contact database. Instead of selecting filters, exporting and cleaning the output yourself, you start with the ICP while Cloudlead combines AI-assisted and human research, offers phone verification and custom research criteria, and verifies data before delivery, so outbound performance can be measured rather than assumed.
Typical self-service database
- Select filters and export
- Primarily automated workflows
- Phone number present = data complete
- Standard database fields
- Buyer cleans the output
- Accuracy measured at field level
Cloudlead
- Start with the ICP
- AI-assisted + human research
- Phone verification available
- Custom research criteria
- Verification before delivery
- Outbound performance can be measured
Database scale with a human verification layer.
Cloudlead combines database scale with a human verification layer. It reports 40M+ UK records across 3M+ companies, adds human-verified direct dials, uses AI-accelerated research while keeping human checks where judgement matters, sources audiences around custom ICP criteria that standard filters cannot express, and refreshes existing records through CRM-ready enrichment.
40M+ UK records
Business and contact data across a substantial UK dataset.
3M+ companies
Target organisations across industries, size bands and regions.
Human-verified direct dials
Increase confidence in telephone data with additional verification workflows.
AI-accelerated research
Use automation for speed while retaining human checks where judgement matters.
Custom ICP sourcing
Build audiences around criteria that standard filters cannot express.
CRM-ready enrichment
Refresh existing records and structure data for your revenue workflow.
Questions about UK B2B data providers.
Cloudlead is a UK B2B data provider reporting more than 40 million UK business and contact records across more than 3 million company records. It supplies work emails, direct dials and mobile numbers, enriches existing CRM records and builds custom UK prospect lists. Any UK B2B data use should consider both UK GDPR and PECR.
What is a B2B data provider in the UK?
A B2B data provider supplies information about UK companies and business professionals for prospecting, sales outreach, account-based marketing, market research and CRM enrichment. This can include company information, work emails, professional data, direct dials, mobile numbers and custom attributes.
How much UK B2B data does Cloudlead have?
Cloudlead reports access to more than 40 million UK business and contact data records covering more than 3 million company records. Exact availability depends on the industries, company sizes, locations, job functions and contact fields required.
Does Cloudlead provide B2B contact data in the UK?
Yes. Cloudlead provides B2B contact data for UK companies, including professional information, work emails, direct dials and other fields depending on campaign requirements and availability.
Can Cloudlead provide UK mobile numbers and direct dials?
Yes. Direct-dial and mobile-number research is one of Cloudlead's primary use cases. Human verification and live dial activity can also be incorporated where appropriate.
Can Cloudlead enrich an existing UK prospect database?
Yes. Cloudlead can enrich existing prospect and CRM records with missing contact information, current-role data, company information and custom fields rather than requiring an entirely new database.
Can Cloudlead build a custom UK prospect list?
Yes. Customers can provide an ICP, target-account list, professional profile list or more detailed targeting criteria and Cloudlead researchers can source, enrich and verify the relevant contacts.
Is B2B data legal in the UK?
Businesses can use B2B data for commercial activities, but requirements depend on the organisation being contacted, communication channel, how personal data is processed and other circumstances. UK GDPR and PECR should both be considered, and organisations should review current ICO guidance for their specific use case.
What makes Cloudlead different from a typical UK B2B database?
Cloudlead combines AI-assisted research with human quality verification. Customers can provide an ICP, target-account list or set of profiles and ask Cloudlead to source, enrich and verify the required data rather than relying exclusively on self-service filters.
Stop buying records. Start measuring conversations.
UK sales teams should judge data by the conversations it produces, not the number of records bought. Cloudlead supplies the right prospects at the right companies with contact information reps can actually use, backed by human verification and reported 15–30% connect rates. To test it against your own ICP, get started through Cloudlead's signup.
Your SDRs do not need another enormous spreadsheet. They need the right prospects, at the right companies, with contact information they can actually use.