What Is Data Appending?

Data appending is the act of adding data. A big challenge for many businesses is keeping up with the transactions of their customers. It is important to know everything possible about customers to market the brand effectively. Businesses collect a great deal of information. The big concern is if their information is correct. Both email and data appending have their proper place in the world and can lead to more robust leads lists and data lists.

Email Appending

Email appending seeks to add valid email and contact information to a database. Contact discrepancies include having an email address without a first and last name, or physical address. This also includes outdated or old email addresses, email addresses now dormant, and contacts that do not respond to an email address on file.

Data Appending Services

With data appending, you can add new information about a subscriber based on their correct and current email address. Your company will also be able to design marketing programs that reach customers at relevant times. You can also increase the power of your marketing campaign engagements, and improve your data’s value and relevancy. Finally, companies that rely on data appending stand an excellent chance of reducing management costs because of an increase in the quality of their data lists and leads lists.

At Marc Publishing, we offer data append and customer cloning services for clients that already have a reservoir of existing sales data. We can take that data and turn it into gold. Data can be utilized best when it offers a complete picture. We can also clone your ideal customer and find thousand more just like them. We can also append mobile phone numbers so that your company gets a complete picture of its landscape.

Companies already possess valuable information like internal customer and leads lists. As mentioned, the problem with this data is that it can become inaccurate over time. People move and change email address and telephone numbers. They, literally, can drop off the grid with respect to their information on file. At Marc Publishing, we live data and we focus on weeding out conflicting, unorganized, and incorrect data from our client’s business. Companies can live or die by the data held in their system.

We serve Bucks County, Montgomery County, and Philadelphia. Partner with us today to learn more about our data appending services and how we can help you make sense of your data lists and leverage them in the most beneficial ways possible.


2 Billion +

Lists and Leads Provided

20% to 30%

Increase in Weekly Sales

24+ Years

in this Industry.


Satisfied Clients
Small to Enterprise Level

default image

My telemarketing business just opened a new branch near Lafayette Hill and we were in need of leads to get off to a good start.  We called John at MarcPub and he was able to get us a good list of leads very quickly.  Couldn't be happier with the results!

Janet Thompson May 23, 2017

default image

John was great to speak with over the phone and really knows his stuff!  He was able to get our list to us faster than estimated, and we have since turned a large number of those leads into sales!  If anybody is in the Lafayette Hill that needs a list, give MarcPub a call!

Andrew Prow February 2, 2017

Contact us

Fill out & SUBMIT or call John Lamason 800-432-5478