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Computerworld - Technology vendors and data center suppliers were also invited to participate in Computerworld's search for the Top Green-IT Organizations. These companies completed the same survey as the end-user organizations and were judged on the same criteria -- most notably, on their IT departments' efforts to reduce energy consumption in their IT equipment, and to use technology to conserve energy and lower carbon emissions. Here are the top 12, in ranked order:

1. IBM, Armonk, N.Y., www.ibm.com (last year, No. 1)

2. Hewlett-Packard Co., Palo Alto, Calif., www.hp.com (last year, No. 7)

3. Fujitsu America Inc., Sunnyvale, Calif., www.fujitsu.com/us (last year, No. 5)

4. Microsoft Corp., Redmond, Wash., www.microsoft.com (last year, No. 6)

5. Qualcomm Inc., San Diego, www.qualcomm.com (last year, No. 3)

6. Dell Inc., Round Rock, Texas, www.dell.com

7. Aplicor Inc., Boca Raton, Fla., www.aplicor.com (last year, No. 4)

8. BT Group PLC, London, www.btplc.com (last year, No. 2)

9. Applied Materials Inc., Santa Clara, Calif., www.appliedmaterials.com

10. Entrust Inc., Dallas, www.entrust.com

11. Compellent Technologies Inc., Eden Prairie, Minn., www.compellent.com

12. Terremark Worldwide Inc., Miami, www.terremark.com

Next: How we chose the winners

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