Data Cleansing Services

Keep your data accurate, compliant, and ready to drive results with our expert cleansing solutions.

  • Remove duplicates, errors, and outdated records
  • GDPR-compliant cleansing for email, phone, and postal data
  • Business and consumer data solutions tailored to your needs
  • Optional API integration for seamless, automated updates

From TPS checks to deceased record screening, we ensure your data stays clean, reliable, and campaign-ready.

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Data Cleansing Services


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Database Cleansing Services

At Prospect360, we offer data cleansing services to help businesses maintain clean, accurate, and reliable data. 

Ensuring the accuracy of contact information is essential to improving marketing ROI, reducing costs, and staying compliant with GDPR.

Our comprehensive Data Cleansing Services remove errors, duplicates, and outdated information from your datasets, providing you with actionable insights and enhanced customer engagement.

We offer specialised solutions for email, telephone, and postal data, as well as tailored services for both business-to-business (b2) and consumer-to-consumer (B2C).

Contact us for data cleansing today by calling or filling in the form and one of our team will get back to you immediately.

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How Our Data Cleansing Service Works

With processes like Mail Preference Service (MPS), Telephone Preference (TPS) checks, HLR validation, email validation (for business data only), gone aways, and The National Deceased Register (NDR), we make sure your data is always up-to-date, ensuring better decisions and improved performance from day one.

We start by identifying inaccuracies and incomplete records, then remove duplicates and obsolete information. This process helps businesses like yours maintain high-quality data for marketing, billing, and customer engagement. With automated options available through our API, we can integrate seamlessly into your existing workflows, ensuring your data is consistently reliable.

Key steps in our process include:

  • Identifying and correcting errors in your dataset
  • Removing duplicates and outdated information
  • Ensuring compliance with GDPR and other regulations
  • Offering automated data cleansing through API or CRM integration

Data Cleansing Services

Email Data Cleansing
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Telephone Data Cleansing
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Postal Data Cleansing
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B2C Data Cleansing
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B2B Data Cleansing
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Public Sector Data
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CRM Data Cleansing
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TPS Checking
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HLR Checking
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📨 Email Data Cleansing Service

Our service includes:

Maintaining clean and accurate email data is critical to the success of your marketing campaigns. Our Email Data Cleansing Service ensures that your email lists are up-to-date, removing invalid, duplicate, and inactive email addresses to reduce bounce rates and increase engagement.

  • Validating email addresses to ensure deliverability
  • Identifying and removing duplicates
  • Flagging disposable and temporary email addresses
  • Ensuring compliance with GDPR for email communications

By using our email data cleansing service, you can improve your email marketing ROI and reduce the risk of damaging your sender reputation.

📞 Telephone Data Cleansing Service

Having accurate phone numbers is crucial for effective communication, especially for telemarketing and customer service operations. Our Telephone Data Cleansing Service ensures that your phone numbers are up-to-date and valid, reducing call handling time and improving contact rates.

What we offer:

  • Validation of mobile and landline numbers
  • Removal of invalid, inactive, or duplicate numbers
  • Identification of numbers listed on the Telephone Preference Service (TPS)
  • Integration with CRM systems to automate phone number updates

With our telephone cleansing service, you can reach more customers with less wasted effort, improving both efficiency and results.

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📬 Postal Data Cleansing Service

Accurate postal addresses are essential for effective direct mail campaigns and billing processes. Our Postal Data Cleansing Service ensures that your address data is current, complete, and formatted correctly, helping to reduce return mail and improve customer satisfaction.

Our service includes:

  • Address validation and standardisation based on Royal Mail’s PAF (Postal Address File)
  • Removal of ‘goneaway’ and deceased records
  • Identification of home movers with updated address data
  • Formatting addresses for mail readiness and billing purposes

By ensuring your postal addresses are accurate, you’ll save on mailing costs, increase delivery success rates, and maintain better customer relationships.

B2C Data Cleansing Service

For businesses targeting individual consumers, maintaining clean B2C data is essential. Our B2C Data Cleansing Service helps you keep your customer records accurate and compliant, improving the efficiency of your marketing efforts and reducing costs associated with incorrect data.

Features of our B2C service include:

  • Validation and updating of contact details, including email, phone, and postal addresses
  • Suppression of deceased and ‘goneaway’ individuals
  • GDPR compliance checks to ensure your data is legally compliant
  • Enhanced customer profiling for better targeting and segmentation

With clean B2C data, you can personalise your marketing campaigns, improve customer retention, and achieve higher response rates.

B2B Data Cleansing Service

Our B2B Data Cleansing Service ensures that your business contact data remains accurate and up-to-date, enhancing your ability to engage with potential clients and partners. We understand the importance of having reliable business data for sales and marketing efforts.

Key aspects of our B2B data cleansing include:

  • Validating business contact details, including emails, phone numbers, and addresses
  • Updating records with new contact information for key decision-makers
  • Removing duplicates and correcting outdated company information
  • Enhancing data with industry-specific insights and SIC codes

With clean B2B data, you can streamline your sales outreach, improve lead quality, and enhance business relationships.

📵TPS Checking Service

Compliance with the Telephone Preference Service (TPS) is a legal requirement for businesses engaging in telemarketing. Our TPS Checking Service helps you ensure that your phone numbers are compliant with TPS regulations, reducing the risk of fines and improving the success of your outreach.

Our TPS service offers:

  • Real-time screening of phone numbers against the TPS and CTPS databases
  • Removal of numbers listed on the TPS, preventing non-compliant calls
  • Integration with CRM systems for seamless updates
  • Regular checks to maintain compliance over time

With our TPS Checking Service, you can confidently run telemarketing campaigns while staying compliant with UK regulations.

📱HLR Checking Service

Our HLR Checking Service helps you identify the status of mobile numbers, determining whether they are active, inactive, or disconnected. This service is essential for businesses conducting SMS marketing, customer notifications, or telemarketing.

HLR Checking include:

  • Identifying active mobile numbers for SMS and voice campaigns
  • Reducing costs by avoiding sending messages to inactive or invalid numbers
  • Improving the accuracy of your mobile number database
  • Real-time HLR lookups to maintain data accuracy

By using HLR checking, you can improve the efficiency of your data and improve business outcomes.

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Marketing Data Lists

Prospect360’s offerings extend beyond Data Cleansing services. We are also one of the UKs top data brokers. We provide some of the most comprehensive contact data lists available in the B2C, B2B and Public Sectors.

Additional Services

Alongside our comprehensive marketing databases, Prospect360 offers the expertise of an experienced in-house marketing team. With over two decades of industry-specific knowledge, our professionals are equipped to either support or fully manage your promotional campaigns. We provide a range of tailored marketing solutions, each designed to align with your business objectives and address your unique needs.

Finance Managers

Sales Managers

HR Managers

Procurement Managers

IT Decision Makers

Facilities Managers

Dentists Data

Events Managers

UK Engineers

UK Tradesmen

Europe

Scotland

Wales

Northern Ireland

Ireland

London

North England

Yorkshire

Midlands

South England

Financial Services

Sales & Marketing

Hospitality

Operations

Human Resources

Public Sector

Transport & Logistics

Health Care

Manufacturing

IT & Communications

Data Cleansing Service FAQs

What is data cleansing?

Data cleansing is the process of identifying and correcting inaccuracies, inconsistencies, and incomplete information in your data. This process ensures that your data is accurate, up-to-date, and ready to support business decisions.

Why is data cleansing important?

Clean data improves decision-making, enhances customer communication, reduces errors, and ensures compliance with legal requirements like GDPR. It also prevents wasted time and resources on incorrect or outdated information.

How often should I cleanse my data?

Data should be cleansed regularly to maintain accuracy. The frequency will depend on your business needs, but generally, it’s recommended to cleanse data quarterly or biannually.

What types of data can be cleansed?

We can cleanse a variety of data types, including customer contact information, mailing addresses, email addresses, and transactional data. Our services also support both B2B and B2C data.

Can data cleansing improve my marketing campaign’s performance?

Yes, by removing inaccurate or outdated information, data cleansing ensures that your marketing campaigns reach the right audience, reducing costs and improving return on investment (ROI).

Is data cleansing compliant with GDPR?

Yes, our data cleansing services are designed to help businesses stay compliant with GDPR by ensuring accurate, up-to-date data that respects customer consent and privacy.

What is the difference between data cleansing and data appending?

Data cleansing focuses on correcting errors and inconsistencies in your existing dataset, ensuring that the information you have is accurate, complete, and reliable. Data appending involves adding new, supplementary information to your existing data, click here for our Data Appending Service

Where can I learn more about data cleansing?

For a broader understanding of data cleansing, you can explore the detailed Wikipedia article on Data Cleansing, which covers the topic in-depth.

How do I get started with data cleansing?

To get started, simply reach out to us. We offer a variety of service options, including self-service online tools, automated solutions, and bespoke services tailored to your business.

What is the cost of data cleansing services?

The cost of data cleansing can vary depending on the size of your dataset and the specific services required. Contact us for a tailored quote based on your business needs.