Oracle is the world's leading supplier of software for information management, and the world's second largest independent software company. Oracle technology can be found in nearly every industry around the world and in the offices of 98 of the Fortune 100 companies. Clickatell has worked with Oracle for a number of years as both a partner and customer.

BT is the world's oldest communications company, with a direct line of descent from the first commercial telecommunications undertaking in Europe. Today the company is the world's leading providers of communications solutions and services operating in 170 countries. Clickatell has entered into a number of strategic partnerships in the US with BT with the need to address various enterprise messaging requirements.

O2 is a leading provider of mobile services to consumers and businesses in the UK. It is the leader in non-voice services, including text, media messaging, games, music and video, as well as data connections via GPRS, 3G and WLAN. Clickatell has an excellent relationship with O2 leveraging their vast experience and infrastructure within the UK enterprise messaging market.

Vodafone is one of the world's leading providers of communications solutions and services operating in 170 countries. Mobile is always at the heart of what Vodafone does, but more recently the company is moving into integrated mobile and PC communication services. Vodafone and Clickatell have forged strong ties and Vodafone remains one of Clickatell's strategic partners of choice in the UK messaging market.