The platform, which has been around since March 2012, allows users to receive real-time alerts when certain keywords or phrases are mentioned on the web and social networks.
It also scans blogs, forums, videos and images, making it a valuable tool for monitoring niche topics or tracking a particular business, place or person.
However, the new feature, launched today, will make it even easier for journalists to work together to monitor breaking news or content around certain topics, even if they are not based in the same office or even in the same country.
"Mention is Google Alerts on turbo-charge," said Edouard de La Jonquière, co-founder and chief executive of Mention.
"We realised that our users tend to collaborate within the platform. So we developed this new feature in order to for teams to use Mention in a more collaborative way."
Screenshot from mention.net
Using Mention's Business plan, each user can receive a feed of information around the keywords or topics they wish to track. Feeds can also be shared and curated with others, allowing users to assign tasks to co-workers and, for example, see when another group-user has replied to a tweet.
For community managers, Mention could also help to streamline online communications, Edouard notes, by making sure you are not responding to a tweet or alert that a co-worker has already picked up.
Mention is available on desktop (PC, Mac or Linux) or as an app on iPhone and Android. There is also a Chrome app for searching straight from your browser.
The new Business plan is priced at $29 (£17.80) for the first user and then $19 (£11.70) for additional users. The standard version of Mention is also available on a free 30-day trial, with payment plans start at $6.99 [£4.30].
Mention is a Paris-based company with has 150,000 users in 95 countries, 50 per cent of which are in the US.