Melissa Data Quality Platforms
Melissa's Full Spectrum DQ Approach. Learn MoreMelissa Data Quality Tools
Verify, correct & cleanse contact data in 240+ countries.Melissa Identity Verification
Increase compliance, reduce fraud and improve onboarding. Visit Identity Verification SolutionsMelissa E-Commerce / CRM
Improve customer onboarding, marketing & fulfillment.Melissa Enrich
Gain insight into who and where your customers are.Melissa Industries
See how Melissa's solutions work across industries.Data Hygiene
Keep your mailing list up-to-date, qualify for postal discounts & reduce UAA mail.Data Enhancement
Enrich your consumer or business records for greater insight & omni-channel marketing success.SaaS
Clean and update your data in the cloud, no software to maintain.Verify & enrich your records with multi-sourced, authoritative reference datasets.

Autocompletes and/or verifies a postal address at point of entry so bad data never enters your system.
Uses proprietary lexicons & rules to parse an address into its component parts.
Conforms an address to Royal Mail standards or local country format.
Uses authoritative, in-country reference datasets to check the validity & deliverability of a physical address.
Transforms foreign languages into Latin characters so an address can easily be validated.
A clean, deliverable postal address checked & ready for mailing, order fulfilment, or analytics.
Verify UK & international addresses. Output includes latitude/longitude coordinates.
Utilise Melissa for fast, accurate address capture at the point of entry. Our Express Entry solution powers your web forms and CRM with type-ahead address autocomplete, helping users complete address fields quickly and correctly with minimal effort.
Melissa combines 40+ years of address intelligence with official postal reference data from trusted global authorities, ensuring your address data is accurate, deliverable and compliant worldwide.
Our UK & Ireland reference sets include:
Melissa’s address verification service enables you to verify and correct addresses across 240+ countries through a single interface. Our platform combines global address reference data with advanced parsing and validation to return accurate, standardised address records in real time.
Transliterating address data improves deliverability & reduces costly errors by ensuring international mail pieces arrive at the correct address.
We support multiple language scripts, including:
Managing international address data is complex, with over 130 address formats across 240+ countries, thousands of languages and multiple character scripts.
Melissa’s address verification platform automatically applies the correct formatting rules for each country — ensuring your address data is accurate, standardised and deliverable worldwide.
Address verification is the process of checking whether a physical mailing address is accurate, valid and deliverable. It confirms that the address exists and matches official postal reference data, ensuring mail, shipments and communications reach the correct destination.
Businesses use address verification to prevent returned mail, reduce shipping errors, improve data quality and ensure customer records contain accurate address information.
An address can be verified by checking it against official postal reference data to confirm it exists and is deliverable. Address verification software automatically standardises, validates and corrects address information in real time, ensuring it matches recognised postal formats and databases.
With Melissa’s address verification solutions, addresses can be verified instantly at the point of entry or in batch using global postal data sources and advanced parsing technology.
An address may not be verified if the information provided is incomplete, incorrect or not recognised by official postal reference data. Address verification systems rely on trusted postal databases to confirm that an address exists and is deliverable.
Common reasons an address cannot be verified include:
• Missing or incorrect address details (e.g. street name, house number or postcode)
• Newly built or recently updated properties not yet in postal databases
• Non-standard or informal addresses not recognised by postal authorities
• Data entry errors such as typos or incorrect formatting
Using address verification software at the point of entry helps prevent these issues by validating and correcting address data in real time.
Yes, but it increases the risk of delivery issues such as lost packages, returned shipments or delayed deliveries. Unverified addresses may contain errors, missing information or formatting issues that prevent successful delivery.
Using address verification helps ensure addresses are accurate and recognised by postal authorities before shipping, reducing failed deliveries, additional shipping costs and customer service issues.
Address verification is necessary for several reasons:
Address verification serves as a proactive measure to ensure the reliability, efficiency and effectiveness of various business processes including shipping, customer service, database management, compliance and marketing. It helps streamline operations, enhance customer experiences, and reduce costs associated with incorrect or undeliverable addresses.
Start today with Melissa's wide range of Data Quality Solutions, Tools, and Support.