Headquarters
Authentidate Holding Corp.
Connell Corporate Center
300 Connell Drive, Fifth Floor
Berkeley Heights, N.J. 07922 USA
Phone: +1-908-787-1700
Fax: +1-908-673-9920

To contact Authentidate® click here.

Authentidate Customer Support
Phone: +1-877-467-2792
Email: This e-mail address is being protected from spam bots, you need JavaScript enabled to view it

To view or download directions to Authentidate headquarters click here.




Germany Office
Rethelstraße 47
40237 Düsseldorf GERMANY
Phone: +49 211-43 69 89 0
Fax: +49 211-43 69 89 19

To view or download directions to our Germany Office click here.

Inscrybe® Healthcare
Healthcare Sales and Customer Support
Phone: +1-877-467-2792 OR +1-877-INSCRYBE
Email: This e-mail address is being protected from spam bots, you need JavaScript enabled to view it

Inscrybe® Office
Customer Support
Phone: +1-800-870-5348 (8:30 AM - 6 PM ET weekdays)
Email: This e-mail address is being protected from spam bots, you need JavaScript enabled to view it

Authentidate's Electronic Postmark Service
Customer Support for EPM® Service
Phone: +1-800-870-5348 (8:30 AM - 6 PM ET weekdays)
Email: This e-mail address is being protected from spam bots, you need JavaScript enabled to view it

United States Postal Service®
Attn: USPS EPM Program Manager
475 L'Enfant Plaza, SW Suite 3300
Washington, DC 20260

Investor Relations
Authentidate Holding Corporation is a public company listed in the United States on NASDAQ as: ADAT