Altitun developed and manufactured tunable semiconductor lasers for use in optical networking applications. The company was acquired in May 2000 by ADC Telecommunications Inc (Nasdaq:ADCT) for $872 million.

Cramer Systems is a leading provider of operations and support systems software (OSS) to the global telecommunications industry. Cramer was acquired in August 2006 by Amdocs (NYSE: DOX) for $375 million cash consideration. See Case Study and Interview with founder Jon Craton.

Orchestream provided software to manage Internet protocol (IP) services across carrier and enterprise networks. The company went public in June 2000 on the LSE and NASDAQ and was subsequently acquired by Metasolv in January 2003, which is now part of Oracle (Nasdaq:ORCL).

Paragon Software developed software to synchronize data between wireless devices and PCs over the Internet. The company was acquired in March 2000 for $540 million by Phone.com, which is now Openwave Systems (Nasdaq:OPWV).

Consul Risk Management is a developer of security auditing and administration software for the enterprise and managed security services markets. The company was acquired by IBM (NYSE:IBM)in January 2007.

Oxygen Solutions implemented market-leading customer relationship management and business intelligence software in the pharmaceutical and financial services industries. The company was acquired in September 2000 by Aspective Ltd, which is now part of Vodafone UK.