Genesys VoiceGenie
- The NeXusPoint platform includes VXML and CC interpreters along with the associated speech resources.
- http://www.genesyslab.com/voicegenie/

Nuance Voice Platform
- VXML 2.0 implementation which also exposes Nuance-proprietary elements through the object tag. Integrates with Nuance vocalizer and recognizer.
- http://www.nuance.com/voiceplatform/

PublicVoiceXML
- An open-source implementation of VXML 2.0 in C hosted by sourceforge. Runs on Windows and Linux
- http://publicvoicexml.sourceforge.net

Visibridge
- Provides VoiceXML platforms running on Windows/Intel platform. Ranges from low-cost sound-card and personal edition to server edition supporting E1s. Uses Microsoft TTS and ASR by default and also integrates with other SAPI providers such as AT&T, Neo
- http://www.visibridge.com

OptimTalk - VoiceXML Platform
- Modular and scalable platform including VoiceXML 2.0 and CCXML compliant interpreters, a SRGS and SISR implementation and an SDK. Runs on Windows and Linux.
- http://www.optimtalk.cz

Envox: Communications Server
- Provides a VXML implementation platform supporting from 4 ports to 240 ports per server. Operates on Windows and natively uses Intel Communications' telephony boards. Integrates with SpeechWorks, Nuance and Phonetic ASR/TTS engines.
- http://www.envox.com/

VoiceXML 2.0 Implementation Report
- The VXML test suite provided by the W3C to demonstrate that the VXML standard can be implemented. This test suite is then used by the VoiceXML Forum as the basis for conformance activities.
- http://www.w3.org/Voice/2004/vxml-ir/

Idylic - Phonic Telecom
- VXML and CCXML implementations running on Windows.
- http://www.idylic.com/

Intervoice - Omvia Voice Server
- Omvia Voice Server is a VXML implementation using MRCP to connect to TTS and ASR engines.
- http://www.intervoice.com

Motorola VXML VoxGateway
- A Java-based implementation licensed with sources for integration with various hardware platforms.
- http://www.motlabs.com/voicexml/

SandCherry AppRun VXML platform
- Provides VXML development tools and VXML gateways running on Windows and Solaris.
- http://www.sandcherry.com/

Verascape
- Provides rackeable high-capacity, high-availability VoiceXML speech and DTMF-processing platforms.
- http://www.verascape.com/

ScanSoft's OpenVXI 3.0 hosted at CMU
- The ScanSoft's OpenVXI 3.0 interpreter which C++ source is provided for free. Last 3.0 release is from Oct 2003. Not clear whether it is still maintained.
- http://fife.speech.cs.cmu.edu/openvxi/

VoxPilot Open Media Platform
- Acquired in 2004 by EurekaSoft, VoxPilot provides VXML platforms.
- http://www.voxpilot.com

HP Open Call SpeechWeb
- HP provides VXML gateways integrated in Open Call Media Platform. Version 2.4 is based on the SpeechWeb browser from Pipebeach which HP acquired in July 2003.
- http://devresource.hp.com/drc/topics/vxml.jsp

Voxeo VoiceXML VoiceCenter Platform
- The Voxeo VoiceCenter IVR Platform is a VoiceXML and CCXML plaforms that is completed with addons for conference, CTI, and shrink-wrapped applications.
- http://www.voxeo.com/products/voicexml-ivr-platform.jsp

IBM WebSphere Voice product familly
- The family of IBM products related to VXML. Includes VXML server, IDEs, and VXML applications.
- http://www-306.ibm.com/software/pervasive/ws_vaa/