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

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

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/

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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/

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

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

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