Impacting the information industry since 2002
Thousands of happy customers
Your database will thank you

National Change of Address

Amazing fully-automated USPS NCOA processing. Largest USPS dataset available. Individual, Family & Business moves. Full 4-year dataset. Updated weekly. Fast: 98.5% of jobs done within 1 hour.

Email Append

Matches consumer or business email addresses to your data. Kick-start your targeted, multi-channel marketing campaign by utilizing the email addresses of your customers.

Reverse Email Append

Fact: Behind any given email address is a real person. Let us match names & addresses to your email data. Includes our Top Ten Demographics. Fresh, accurate & cost-effective. 7.5 cents/match.

Proprietary Change of Address

The complete address updating solution. 10-year PCOA dataset privately sourced from utility companies, magazines, credit grantors & third-party credit card processors. Includes full NCOA.

Cell Phone Append

Vetted by many, equaled by few. Highest match rate & accuracy. Our Cell Phone Append is one of our most popular services. Matches cell phone numbers to your list. From 3.5 cents per match.

Phone Append Landline

Append your lists with the most reliable phone data available. Our sophisticated multi-sourced national files detect, identify, and append phone numbers to your list. 3.5 cents per match.

NCOA Deluxe

Includes phone numbers! Most files done within minutes. Adds phone #s at just 3.5 cents per match to your NCOA Processing. Fresh, accurate & cost-effective. A very complete NCOA solution.

Reverse Phone Append

You've got the phone numbers, we've got the names & addresses. Make your data complete with this amazing solution. Need demographics too? We can append home value, rent/own flag, etc.

Email Lists

Your needs are covered: Growing Businesses, New Movers, Registered Voters by party, Physicians & Surgeons, Religious Groups, Affluent Households, Bankruptcy Filers, Psychographic segments, etc.

Business Lists

Direct mail works. Imagine your perfect customer. Define criteria by geo, zip, state as well as SIC code, company size, annual revenue, # of employees, etc. Add any other demographics & we'll get back to you with a free pre-count.

Voter Lists. Target-Ready.

20 state coverage. Kick-start your targeted, multi-channel political campaign by utilizing the email address & mailing address of your target voter. Conduct campaigns that reach the right people.

CASS Certification

Robust dual-engine hygiene & standardization included with our NCOA & PCOA processing. CASS (Coding Accuracy Support System) is a USPS system that improves accuracy of carrier route, 5-digit ZIP, ZIP+4 & delivery point codes.

On-Demand access to critical information tools:
From full-service NCOA to Proprietary Change of Address. Email Append, Nationwide Phone Append, Reverse Email Append, Cell Phone Append, PCOA, Target-ready Voter Lists, Business Lists, Email Lists, robut dual-engine CASS certification, and rich Demographics

Best Data Privacy in the Industry

  • Other information providers track you
  • We don't track you at all
  • Zero use of social media tracking
  • Zero use of 3rd-party data analytics
  • Zero location-based or geo-based tracking
  • Zero use of tracking cookies to track page visits
  • We do not track page referrals or what link you clicked on to visit us
  • Zero use of 3rd-party advertising or pixel tracking
  • Zero utilization of web beacons or "clear gifs"
  • No tracking APIs or LSO's (local shared objects)
  • No persistent cookies, "Facebook pixels", or DOM storage
  • We do not even collect visitor IP address (except, for security reasons, where our code requires it, i.e. when submitting payment info)
  • We never sell, rent or lease your info to anyone. Period.

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Pricing is important.
Simply put, we treat our users as we like to be treated.
Just another reason we consistently have the lowest overall fees in the industry.


Not all information providers are created equal.

We've had great success with your NCOA processing.


Went great. We had over 90K updates so that was totally unexpected.

Portland Trailblazers

Thanks for your speed and competence. I've recommended you several times.

Politics Online

My list submitted this AM is ready. That was fast.

Marketing By Mail

I have to send along a huge thank you from all of us. Being able to set up our account over a weekend and have a file processed early Monday morning saved a client for us that we were in serious danger of disappointing. The responsiveness of NCOAsource and ease of using the service almost made me think I was doing something wrong! Hopefully the next time we need your services it won't be so much of an emergency!


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We are the web's best high-performance information processor

Get Started Today

Obtaining an assigned UserID is fast & free

  • Quick setup with minimal friction
  • No upfront costs, deposits, or setup fees
  • Free, friendly Support Team
  • Super fast turnaround | Rush jobs at no extra charge
  • No contract, no risk | Fully On-demand processing
Services backed by expert-level support staff.
100% US-based.

Contact us

Open a chat session, or use the form below. If you have layout questions, file uploading questions, pricing questions, etc., we want to hear from you!