You can view the relationships of a company and see which other projects they are working on by clicking the 'Relationships' button in the options buttons in the top right hand corner of a company profile. 

This screen then allows you to see those companies connected to this particular company and the relationship they have. Click further in the relationships screen to see the number of projects that connected company is mutually working on. Click on the number and it will take you to a new screen where you can see the individual project details.

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