About Cornerstone Services
Delivering results through direct mail since 1998.
Our Story
Sean H. Griffin
Founded in 1998 by Sean Griffin, Cornerstone Services has grown from a small mailing operation in New Paltz, New York, into the Hudson Valley's most trusted full-service direct mail company. For over 25+ years, we've helped businesses, non-profits, municipalities, and political organizations reach their audiences through targeted, high-quality direct mail campaigns.
We've mailed over 2.3M+ pieces for clients across 47 municipalities in Ulster, Dutchess, and Orange Counties — and beyond. Every campaign is handled in-house from data targeting through postal delivery, with a 98% on-time delivery rate.
Cornerstone isn't just a printer or a mail house. We're a full-service marketing partner. We help you identify the right audience, design a mail piece that gets noticed, print it at commercial quality, and deliver it to the USPS at the lowest possible postage rate. That's the Cornerstone difference.
What We Do
Cornerstone Services provides end-to-end direct mail marketing, commercial printing, data list management, and graphic design. We specialize in EDDM (Every Door Direct Mail), non-profit mailing, political mailers, and municipal notifications. Whether you need 500 postcards or 500,000, we deliver.
Memberships & Ratings
Cornerstone Services maintains a BBB A+ rating and is a member of several industry organizations. Our commitment to quality and customer service has earned us the trust of hundreds of clients across the Hudson Valley.
Ready to Start Your Next Mailing?
Get a free estimate from Hudson Valley's most trusted direct mail team. 2.3M+ pieces mailed and counting.