William Michael SIEFERT

Total number of appointments 1

• Date of birth: November 1949

COLUBRIS NETWORKS LIMITED (04088906)

• Company status: Dissolved
• Correspondence address: 128 Dover Road, Wellesley, Massachusetts, 02482-7328, Usa
• Role (Resigned): Director
• Appointed on: 6 September 2006
• Resigned on: 9 April 2007
• Nationality: American
• Occupation: Partner Prism Ventures