Contact Us

Mailing Address: Meeting Registration
6900 Grove Road
Thorofare, NJ 08086-9447
Toll-Free Phone: 877-307-5225, ext. 219 or 476
International Phone: +(1) 856-848-1000, ext. 219 or 476
Fax: 856-251-0278
E-mail: meetingregistration@slackinc.com
Office Hours:  9:00 AM - 5:00 PM (EST), Monday - Friday