Monitoring news and media of your customer base


Does anyone have any experience or recommendations of tools/software for tracking media and news updates of your customer base? I am looking to track updates on approx. 200 companies in our customer base in order to keep CSMs up to date on their portfolio's key events.

Google alerts is too noisy and tedious to set up for so many companies but we would not have a very large budget to implement a big tool either. Any advice or experiences would be welcome:)