Biscom
   Fax server and fax software solutions
   http://www.biscom.com/

Castelle
   Hardware-and-software network Fax server
   http://www.castelle.com

ClearFax
   Desktop fax application
   http://www.clearfax.com

CommercePath
   Production fax product at end-of-life, still supported.
   http://www.commercepath.com

Copia International
   Windows software including fax server. Compatible with Microsoft Exchange and supports custom scripts, IVR, voice and e-mail broadcast.
   http://www.copia.com

ElectraSoft
   Send and receive fax software from a single computer and modem to a network.
   http://www.electrasoft.com/threefax.htm

Equisys - ZetaFax
   Network fax software for Windows.
   http://www.equisys.com/products/zetafax

Esker
   Electronic delivery format via web, email, fax, archive, mail-on-demand, wireless message, or print-all with no modifications to the source application.
   http://www.esker.com/

Extracomm Inc.
   Fax Server for Lotus Notes/Domino.
   http://www.extracomm.com

Fax2000
   Fax2000 allows the user to print to fax or Email, fax to Email and Email to fax documents.
   http://www.fax2000.com

FaxBack
   Provider of fax server and fax-on-demand solutions as well as fax development technology.
   http://www.faxback.com/

Fenestrae
   Fax server software for Microsoft Exchange
   http://www.fenestrae.com/Products/Faxination_Server.asp

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.
   http://www.goldfax.com

HylaFAX
   Open-Source fax server
   http://www.hylafax.org

INTERCOPE
   Fax and Telex solutions with focus on medium to large size enterprises
   http://www.intercope.com

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.
   http://www.imecominc.com/

Interstar Technologies Inc.
   LightningFAX enterprise fax server. A scalable cross-platform fax messaging solution. XMedius T.38 fax over IP Server.
   http://www.faxserver.com/

Omtool Ltd
   Designs, develops, markets and supports open, client/server facsimile software.
   http://www.omtool.com/

Quadrant Software
   FastFax - iSeries (AS400) Fax & Email server
   http://www.quadrantsoftware.com/solution/fax/ffx.htm

Rainbow Software
   Fax server and E-mail broadcasting solution
   http://www.broadfax.com

RelayFax
   fax software to automate the process of sending, receiving and managing of network fax traffic
   http://www.relayfax.com/

RightFax
   Enterprise fax software, fax servers and electronic document delivery.
   http://www.rightfax.com

RunFAX
   Web server based fax server; Send and receive color faxes; Inbound routing by barcode, OCR, DID, DTMF; Long distance relaying over the Interne
   http://www.runfax.com

SEPE, Inc.
   Plug N' Play Fax Server by Fax*Star.
   http://www.faxstar.com/

V*Channel
   FAXLink. Interactive Voice & Fax Server software. Supports fax-on-demand, fax serving, fax broadcasting, and webfax solutions.
   http://www.vchannel.com

Vogler Software
   ActFax, Server software for Fax and email for Windows and UNIX systems.
   http://www.actfax.com/

WHFC Windows HylaFAX client
   A windows client for the HylaFAX fax server.
   http://whfc.uli-eckhardt.de/