First Hop
First Hop's carrier-grade messaging and wireless connectivity products include MMS Gateway and SMS Gateway type of products for messaging routing and management, GPRS acceleration and optimisation as WAP Gateway 2.0 with J2ME support.
http://www.firsthop.com/

Great Gateway Generator
features of our website promotion software
http://www.gatewaygenerator.com

Codeflux Internet Tools Gateway
A gateway for: finger, nslookup, WHOIS, SSL, traceroute, ping, and dig.
http://codeflux.com/exec/tools/

TFS Gateway
Internet Gateway for Exchange, Notes and Groupwise including anti-virus hooks
http://www.tfstech.com

Santera Systems
Provides multi-service network switching on a single platform delivering a media gateway controller, signaling gateway and application server.
http://www.santera.com/

Z1 SecureMail Gateway
Digitale Signatur und Verschlüsselung für den Email-Verkehr des gesamten Unternehmens
http://www.zertificon.de/z1_secure_mail_gateway.php

Exomi
Provides gateway solutions including SMS Gateway, WAP Gateways (method and push proxies) and Wireless Email Solutions.
http://www.exomi.com

Nordic Messaging
SMS/MMS gateway and fax software
http://www.nordicmessaging.se

Bhumika
Telecom Solutions: E1 Voice Data Multiplexers, STM-1 SDH Multiplexers, GSM Gateways, Intelligent E1 Channel Banks, PRI ISDN (Q.931), echo canceller solutions, TDM over IP, Voice over IP, VoIP Gateways, E1 over IP, T1 over IP; Test and Measurement: Power Analyzers, LAN testing, Optical Power Meters, Light Sources, Multimeters, Digital Multimeters, Earth Tester, Resistance Tester, GPIB IEEE 488, PXI, Power Quality Analyzers.
http://www.bhumika.ca/

Gateway Computers
Gateway makes quality notebooks, laptops, computer desktops, all-in-ones, displays, monitors and computer accessories, backed by industry-leading support and sold through leading general and technology retailers in the United States and Canada.
http://www.gateway.com/