Data Appending Services | Add Missing Information to Your Database

Need to add missing pieces of information to your database? Our data appending service is the answer.

If you are planning marketing activity but missing vital pieces of information such as contacts name, address or email address, then Data Appending is the service for you. We specialize in providing you with up-to-date and accurate data for your campaigns through email address appending and data verification.

Data appending is a service where we match your contact database against our multiple sources of information and fill in missing gaps. For example, you may have names and phone numbers, but won’t have postal addresses for your contacts. That’s where we can help.


Data Appending Services with USMM

At USMM, we understand the critical importance of having complete and accurate data for your business needs. We prioritize data accuracy through rigorous verification processes, ensuring that appended information meets the highest quality standards. Our access to diverse data sources enables efficient matching and appending of missing details across a wide range of industries and demographics. Tailored to meet specific requirements, our data appending services are flexible and scalable, accommodating both small businesses and large enterprises seamlessly.


Our Data Appending Solutions:

  • Email Address Appending: Enhance your contact lists with verified email addresses, allowing you to reach your audience effectively through targeted email marketing campaigns.
  • Postal Address Appending: Complete customer profiles with accurate postal addresses, facilitating direct mail marketing initiatives and enhancing your CRM capabilities.
  • Phone Number Appending: Ensure your database includes valid phone numbers, enabling seamless communication and outreach efforts.

How Our Data Appending Service Works:

  1. Database Assessment: We analyze your existing database to identify missing data fields and areas requiring enhancement.
  2. Matching Process: Using advanced matching algorithms, we compare your records against our extensive data repositories to find accurate matches.
  3. Appending and Verification: Validated information is appended to your database, undergoing thorough verification to ensure reliability and compliance with data protection regulations.

B2B Data Appending

Typical match rates are 35% to 65%


B2C Data Appending

Typical match rates are 15% to 20%.

Transform your data

Data appending is so powerful. It can transform an inaccurate old legacy database, missing vital information and tired after years of neglect, into a powerful tool for multi-channel marketing. It is cheaper and more efficient than trying to cleanse and populate the data yourself.


Our Data Appending Process

  1. Send us your list of postal addresses and names. These can be B2B or B2C.
  2. We will clean and standardize your data ready for matching using USPS CASS certification. This produces higher match rates.
  3. We then match this data against national postal and email files containing hundreds of millions of records.
  4. We find matches.
  5. We then send your data through the Permission Pass Opt-in confirmation process which confirms deliverability of the email addresses.
  6. Opt-outs are taken off the file and hard and soft bounces are removed.
    We add the emails to your list and deliver back to you.

Data Appending FAQ

What is the minimum order level for data appending?

B2B data is $300 B2C data is 5000 records

What B2C fields can be appended to my data?

First name, Last name, Postal address, Telephone number, Cell number, Householder Income range, Number of cars, Number of Children and many more. Please let us know what you would like appended and we can come back to you with the options.

What B2B fields can be appended to my data?

  • Company Name
  • Company URL
  • Full name for salutation
  • First name
  • Last name
  • Job Title
  • Personal Business Email Address (not generics)
  • Mailing Address with City, State, Zip Code, Country
  • Phone Numbers
  • Fax Numbers
  • Industry
  • Revenue size indicator
  • Employee size indicator
  • Sometimes software/hardware/SAP usage can be appended

Will my existing data be secure with you?

We treat our clients data with the utmost respect. Before taking delivery of your data we will sign a Non-Disclosure Agreement with you. This will give you peace of mind that your data will be handled in a secure way by USMM, and its third party partners. The data is always transferred to and from our partners and yourself via a secure server. After the project is complete we will delete the data.

What is your average Match Rate for Appending?

On B2B data we can achieve a match rate of between 35% and 65% which is much higher than the 15% industry average.
On B2C data we can achieve a match rate of between 15% and 20% which is higher than the 10% industry average.”