According to Fortune Magazine's survey to find the most admired companies in the world IBM, Accenture and Cognizant are the three most andmired IT services companies in the world.
IBM and Accenture even make it into the overall to 50 at number 12 and 49 respectively. See the top IT services list here.
But when it comes to IT companies the pace setters are Apple and Google who are number one and two in the overall best companies in the world. See the list here.
This link lets you chose a sector and see who are the most admired companies. Have a play.
Click on this preview article and then click on the download button for a free independent white paper about Accenture on Computer Weekly.
See this blog post for more information about Cognizant.
See IBM's Western European performance in this blog post.