CommercePath - Production fax product at end-of-life, still supported.
Copia International - Windows software including fax server. Compatible with Microsoft Exchange and supports custom scripts, IVR, voice and e-mail broadcast.
ElectraSoft - Send and receive fax software from a single computer and modem to a network.
Esker - Electronic delivery format via web, email, fax, archive, mail-on-demand, wireless message, or print-all with no modifications to the source application.
Fax2000 - Fax2000 allows the user to print to fax or Email, fax to Email and Email to fax documents.
FaxBack - Provider of fax server and fax-on-demand solutions as well as fax development technology.
Fenestrae - Fax server software for Microsoft Exchange
Gold-Fax - Gold-Fax is enterprise fax server software for Windows NT, Windows 2000, and OpenVMS. Send faxes from Windows applications, Microsoft Exchange and Outlook and SMTP e-mail.
Imecom Group, Inc. - Send, receive, and manage faxes from the desktop, e-mail client, and most business applications including Exchange, Lotus Notes, GroupWise, and SMTP.
INTERCOPE - Fax and Telex solutions with focus on medium to large size enterprises
Interstar Technologies Inc. - LightningFAX enterprise fax server. A scalable cross-platform fax messaging solution. XMedius T.38 fax over IP Server.
RunFAX - Web server based fax server; Send and receive color faxes; Inbound routing by barcode, OCR, DID, DTMF; Long distance relaying over the Interne