--- title: "Many sources. One maintained business." url: "https://www.wren-data.co.uk/business-data/how-we-build-it" description: "See how Wren turns UK business sources into one maintained record for each business through matching, consolidation, validation and ongoing maintenance." --- HOW WE BUILD OUR DATA # Many sources. One maintained business. We bring together official registers, licensed datasets and public business information, then match and validate every detail to create one maintained record for each UK business. [See how we build it](#sources) [Explore 350+ fields](/business-data/our-fields/) Raw source fields - company\_name - reg\_number - address\_1 - address\_2 - postcode - sic\_code - employee\_count - turnover - accounts\_date - director\_name - email - phone - website ... Verified Wren record ![](/assets/wren-mark-white.svg) One UK business - Maintained - Active - Company - Contacts - Financial - Geographic - Compliance - 350+ fields 6.3M+ UK businesses 20M+ Updates per month 50M Historic records 350+ Available fields AI-assisted Validation & matching WHERE THE INFORMATION COMES FROM ## Built from multiple UK business sources See more of every business. Wren brings company identity, trading details, contacts and specialist information together, ready to be connected to the right company. - ### Official foundations Registered identity, company status, directors, filings and classifications from authoritative UK records. - ### Current business signals Websites and public profiles show how a company trades, where it operates and how it can be contacted. - ### Specialist coverage Licensed datasets add financial, operational and sector-specific information to the company record. Source data - REG Official registers Identity and legal status - Company no. - Status - Directors - Filings - Registered office - SIC code - WEB Public web & profiles Trading details and contacts - Domain - Telephone - Contacts - Email - Trading name - Locations - LIC Licensed datasets Financial and specialist data - Employees - Turnover - Property & premises - International trade - Fleet size - VAT status IDENTITY RESOLUTION ## Connecting every detail to the right business Business information varies in quality and format across sources. Wren combines identifiers, similarity checks and AI-assisted interpretation to find reliable matches, holding back uncertain records. Key identifiers Company numbers, domains and other strong identifiers provide the clearest links between records. Context-aware matching Names, addresses, postcodes and related details are considered together when an exact match is not available. Variations and history Abbreviations, spelling differences, trading names and previous details help identify businesses as their records change. Wren matching engine Key identifiers - Company number - Domain Similarity signals - Business name - Address Context & history - Abbreviations - Previous details AI-assisted identity resolution Signals interpreted, compared and weighted together - Matched - Held for review - Not connected VALIDATION ## Information must pass our checks before it is shown Company and contact details change over time. Wren continually validates records to identify updates, correct inaccurate information and remove details that are no longer active. - ### Company checks Trading status, company identity and address changes are checked against official records. - ### Contact checks Names, roles and employment signals help confirm whether someone is still connected to the business. - AI-assisted calls ### Email and telephone checks Emails are checked for validity and delivery, while telephone screening and verification calls confirm numbers reach the right business. - ### Suppression checks Opt-outs, TPS and CTPS indicators, and internal suppression records are applied so restricted information is held back. Validation and maintenance Check Example result 1. Company status Checking Active 2. Registered address Checking Updated 3. Contact connection Checking Current 4. Contact email Checking Deliverable 5. Telephone number Checking AI-call confirmed 6. TPS / CTPS Checking Screened 7. Opt-out Checking Held back WHAT YOU GET ## One maintained view of each business The result is one structured business record combining company details, decision-makers, financial information, locations and specialist data. - ### Everything connected Company information, contacts and specialist fields are organised around the same business. - ### Consistent and searchable Fields are normalised so businesses can be compared, filtered and exported cleanly. - ### Clear status signals Trading status, validation, TPS, CTPS and suppression indicators are included alongside the data. [Explore all 350+ fields](/business-data/our-fields/) - Company Status · Sector · Employees - Contacts Names · Roles · Emails - Financial Turnover · Credit · Accounts - Geographic Postcodes · Coordinates · Regions - Compliance TPS · CTPS · Trading status - Specialist EPC · Food hygiene · Fleet WHAT CAN YOU USE IT FOR? ## Put business data to work Help sales and marketing teams identify better opportunities, reach the right decision-makers and avoid wasting time and budget on poorly targeted activity. - ### [Build targeted prospect lists](/marketplace/) Create relevant audiences based on the businesses and roles that matter. - Email marketing - Telemarketing - Direct mail - Lead generation ![](/assets/card-art/usecase-prospect-lists.svg) ![](/assets/card-art/usecase-prospect-lists-panel.svg) - ### [Enrich your CRM](/pulse/) Fill gaps with company and contact data, giving your teams more complete and useful records. - Complete records - Add contacts - Improve targeting - Account profiling ![](/assets/card-art/usecase-crm-enrichment.svg) ![](/assets/card-art/usecase-crm-enrichment-panel.svg) - ### [Analyse and segment markets](/business-data/our-fields/) Size markets, compare sectors and locations, and uncover opportunities using detailed business data. - Size markets - Compare sectors - Compare regions - Segment audiences ![](/assets/card-art/usecase-market-analysis.svg) ![](/assets/card-art/usecase-market-analysis-panel.svg) [Explore the data for free](/business-data/) SECURITY & TRUST ## Responsible data. Secure platform. From encryption and private AI to UK-hosted infrastructure and responsible data handling, security and compliance are built into the platform. [Security by default Your data is protected from upload to export, with AES-256 encryption at rest and TLS encryption in transit. Encrypted at rest AES-256 on all stored data Encrypted in transit TLS on every connection Secure uploads Controlled, access-checked ingest Our data protection practices are guided by the ICO accountability framework.](/security-and-compliance/)[Private, controlled AI AI processing runs privately within our own environment, keeping customer data away from public AI services and model training.](/security-and-compliance/)[UK-hosted infrastructure Built, hosted and maintained in the UK, with data sourced from official registers, public web data and licensed partners, then matched and validated in-house.](/security-and-compliance/)[Built-in security controls Multi-factor authentication Continuous monitoring Audit-logged access Automated backups Defined retention controls Role-based access](/security-and-compliance/) [PECR Responsible outreach](/security-and-compliance/) [UK GDPR Data protection by design](/security-and-compliance/) [ICO Registered controller · ZC241278](/security-and-compliance/) [See how we protect your data →](/security-and-compliance/) QUESTIONS ## What buyers usually want to know next - ### Where does Wren’s business data come from? Wren combines official registers, licensed datasets, public business information, business websites and its own validation signals. Different sources contribute different parts of each business record. - ### How does Wren match information to the correct business? We compare company numbers, names, addresses, postcodes, domains and other identifiers. These signals are considered together before information is connected to a business. - ### How often is the database updated? Wren processes around 20 million source updates each month. Maintained records are refreshed as new company, contact and source information becomes available. - ### What happens when information fails validation? Invalid, suppressed, duplicated or unreliable information can be removed from customer-facing records or held back for further review. - ### Does every business have all 350+ fields? No. Coverage varies according to the business, the source information available and the field itself. The 350+ figure describes the range of fields available across Wren. GET STARTED ## Build an audience from connected UK business data Search businesses and decision-makers, review live audience counts and choose the fields you need before exporting. [Create free account](https://app.wren-data.co.uk/register) Free to sign up · Instant access · No credit card required ### Buy with confidence - No sales call needed Sign up, search and buy online whenever you are ready. - Price match guarantee Found comparable business data for less? We’ll match the price. - Refund guarantee If eligible data does not meet our promised standard, we’ll refund it. - Help from real data experts Speak directly to our UK data team whenever you need support. Want to see every field first? [Browse all fields →](/business-data/our-fields/)