Associate Members Filter Members list by Letter. Click the “View All” button to return to full list. View All Go back to directory. Add to Address Book. OTC MARKETS GROUP OTC MARKETS GROUP Contact: Joe Oltmanns, Vice President – Corporate Services Work 304 Hudson Street New York NY 10013 work Work Phone: (212) 896-4447work Work Email: firstname.lastname@example.orgINTERNET Website: www.otcmarkets.com Categories: Uncategorized Updated 1 year ago.