The B2B data provider UK sales teams actually trust
Most UK B2B data providers sell you volume. Long spreadsheets, vague job titles, contacts who left two years ago - and no way of knowing which records still matter.
TAMI works the other way round. Our AI scans the UK market in real time for companies that are growing, hiring, switching platforms or actively buying, then matches those signals to verified contacts with emails, direct dials and clean firmographics you can push straight into your CRM.
95% deliverability. Under 5% bounce. 36m UK contacts.
No credit card required. See our UK B2B data contacts before you commit.
Every contact, verified. Every change, flagged.
When a decision-maker changes job, gets promoted or joins a target account, TAMI tells you - and updates the record in your CRM automatically. No more emailing people who left eighteen months ago.
What is a B2B data provider?
A B2B data provider is a company that supplies verified business contact and company data - names, job titles, work emails, direct dials and firmographics - so sales and marketing teams can identify, reach and qualify potential buyers.
UK B2B data providers are held to a stricter standard than most, because any data used for UK outreach must comply with UK GDPR and PECR, and must be sourced and maintained lawfully rather than scraped or resold.
What separates a good UK B2B data provider from a bad one
- Verification, not volume. A 100m-record database is worthless if 20% of the emails bounce. Ask for the bounce rate before you ask for the record count.
- Signals, not static lists. Knowing a company exists is not useful. Knowing it just hired a VP of Sales, switched CRM, or opened a second office is.
- Freshness cycle. UK B2B contact data decays at roughly 2.5% per month - around 30% a year. Anything refreshed quarterly is already stale.
- UK-specific depth. Global providers typically hold around 10m UK contacts. UK-focused coverage runs three times deeper.
- Demonstrable compliance. Lawful basis, source transparency, and a documented suppression and opt-out process.
- CRM-native delivery. If your reps have to clean a CSV, you bought a spreadsheet, not a data provider.
TAMI is a UK B2B data provider built around all six. 36m UK contacts, refreshed in real time, under 5% bounce, full UK GDPR compliance.
WHAT OUR CLIENTS THINK OF TAMI AI
DATA THAT’S MADE FOR ACTION, NOT JUST INFORMATION
It’s not about how many records you get. It’s about whether any of them turn into pipeline.
You’ll know who’s worth contacting, when to reach out, and what message will land. No bloated lists. No manual cleanups. Just sales-ready data.
WHAT MAKES US DIFFERENT FROM OTHER B2B DATA PROVIDERS
We don’t resell databases. Every company record is mapped by AI based on live website signals, not NAICS codes. Every contact is verified. Every export is clean. And everything connects directly to your CRM, so your reps can start outreach without delays or headaches. This is what it means to be a modern UK B2B data provider.
458M+
CONTACTS
REAL TIME
REFRESH
How much of the UK does TAMI actually cover?
Ask any B2B data supplier the same question and the answer tends to get vague. Ours doesn't.
36m UK contacts
3.6x what ZoomInfo or Cognism hold for the UK.
1.6 milion UK companies
Mapped from live website signals rather than static SIC or NAICS codes.
Coverage across the UK
England, Scotland, Wales and Northern Ireland, broken down by region, headcount band and revenue band.
Industry coverage
SaaS, Financial Services, Manufacturing, Logistics, Professional Services and Recruitment.
Verified contact data
Verified emails and direct dials — not guessed patterns.
Real-time buying signals
Track hiring activity, tech-stack changes and vendor switches across the UK.
Is TAMI's UK B2B data GDPR compliant?
Yes. All UK and EU records are processed under UK GDPR and PECR, with documented lawful basis, source transparency, and a managed suppression and opt-out process. TAMI is ICO-registered and FSQS-registered.
B2B data provider vs data supplier vs enrichment tool - what's the difference?
The terms get used interchangeably, and vendors are not always in a hurry to clarify them.
B2B Data Supplier
Sells you records. You buy a list, export it, own it, and it starts decaying the moment it lands. Transactional, one-off, and usually the cheapest option on paper.
B2B Data Provider
Provides continuous access to a maintained database together with buying signals that identify which companies actually matter right now. It is a platform relationship rather than a one-time purchase.
Data Enrichment Tool
Doesn't source new companies. Instead it improves the CRM records you already have by filling missing information and keeping data accurate over time.
TAMI combines all three.
You get the UK database, real-time buying signals and continuous enrichment of your existing CRM records - instead of buying three separate tools.
How TAMI compares to other B2B data providers in the UK
Most buyers evaluating B2B data suppliers in the UK shortlist ZoomInfo, Cognism and TAMI. Here's the honest comparison, updated July 2026.
ZoomInfo
|
Cognism | TAMI | |
|---|---|---|---|
| Total contacts | 115m | 184m | 458m |
| Company records | 35m | 13m | 71m |
| UK contacts | 10m | 10m | 36m |
| EU contacts | 26m | 43m | 108m |
| North America contacts | 63m | 6m | 268m |
| Email bounce rate | >20% | >20% | <5% |
| UK GDPR / PECR compliance | Limited | Limited | Full |
| Data refresh | Periodic | Periodic | Real time |
| Buying-signal tracking | Partial | Partial | Included |
| Free trial | No | No | Yes |
7 things to look for in a UK B2B data provider
UK depth, not global breadth
A global provider with 180m contacts might hold only 10m in the UK - and those will skew towards large enterprises with a US presence. If your ICP is UK mid-market, headline totals tell you nothing. Ask every provider on your shortlist for their UK-only contact count. (TAMI: 36m UK contacts.)
A bounce rate they'll put in writing
Deliverability is the only data-quality metric that survives contact with reality. Most B2B data suppliers run above 20% bounce. Anything over 5% will damage your sending domain reputation within a quarter. Ask for the number, in writing, before you sign. (TAMI: under 5%.)
Real-time refresh, not quarterly rebuilds
UK B2B contact data decays at around 2.5% per month. A provider that rebuilds quarterly is handing you data that is, on average, six weeks out of date on the day it arrives. (TAMI refreshes continuously and pushes contact-change alerts straight into your CRM.)
Buying signals, not just records
A list tells you who exists. A signal tells you who is in market. Hiring surges, tech-stack changes, vendor switches, funding rounds and office expansions are what turn a contact into a conversation. If a provider sells records without signals, you are paying for a phone book.
Demonstrable UK GDPR and PECR compliance
This is where most B2B data companies quietly fail. Ask: what is your lawful basis? Where was this record sourced? How do you handle suppression and opt-outs? Can you evidence it to our DPO? "We're GDPR compliant" on a homepage is not an answer.
CRM-native delivery
If the output is a CSV your SDRs have to dedupe and clean, you haven't bought data - you've bought admin. Direct integration into your CRM and sales engagement stack is table stakes.
Try before you buy
Any provider confident in their data will let you check your own ICP against it before you commit. If they won't show you contacts pre-purchase, ask yourself why.
Record count is a vanity metric. Bounce rate, refresh cycle, UK depth and signal coverage are the four that decide whether the data turns into pipeline.
TAMI holds 3.6x more UK contacts than ZoomInfo or Cognism, at a quarter of their bounce rate. Don't take our word for it - open a free account and check your own ICP against the database before you spend anything.
BOOST REVENUE AND HIRE MORE SALESPEOPLE
Build campaign list- Build lists of your competitor customers
- Build lists based on what technologies a website is using
- Size your market by country, by merchant size & industry
- Get confirmed email addresses with under 5% bounce rate
- See contact data before you buy
- Get accurate contact data of preferred decision makers
- Get overviews of a company’s competitors
- SQL your list before you export leads to your CRM
- Find companies similar to your best customers
PREMIUM COMPETITOR MARKET ANALYSIS
Want to generate a list of your competitors’ clients and get detailed market analysis reports?
- TAMI AI uses revolutionary technology to monitor the entire web, uncovering your competitors’ customers and delivering detailed, real-time market reports.
- Trusted by leading global companies such as Stripe, United States Postal Service, Trustpilot, and DHL. TAMI provides powerful market insights that transform the way businesses plan and execute their go-to-market strategies.
NO CUSTOM DEVS. JUST PLUG IN
With TAMI, building a verified UK contact list takes minutes, not weeks. Setup is instant. Data starts flowing straight away. Here's what TAMI integrates with:
ENGAGE PROSPECTS FASTER WITH TAMI’S BROWSER COMPANION
Get verified contacts and company insights as you browse any site or social page.
- Website
- Facebook
- Twitter
Whether you're building a lead list, enriching your CRM, or launching a campaign, TAMI helps you start with better data. Spend less time cleaning and more time converting.
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