Depends on what country you're in and your target audience.

A key buzz in procurement at the moment is collaborative procurement, ie hubs setting up frameworks.

You could try finding out who these are to start with, for example in UK government you have OGC, in the health service you have PASA, and theres one for the police force, fire service etc etc.

Try some internet searches for goverment frameworks etc.

If you are interested in supplying to europe you can view the OJEU notices and sign up with companies that alert you to new contract opportunities in your catagory.

HTH.

ComSec