To find out who the established authors are in your field, you can search the Web of Science Core Collection for your topic of interest and use the Analyze Results tool.
You'll find the Analyze Results tool when you're looking at any result set in Web of Science, including the Marked List.
When you run Analyze Results, you can choose to show the top 10, 25, 50, etc. authors for your result set.
This will provide you with insight into who are the most prolific authors writing on your topic.
To view an author's papers, including their institutional affiliation, mark the box for the author name and click the View Records button.
To identify an author's institutional affiliation, open the full record for any paper published after 2007* and go to the Author Information section of the record.
* All authors and their affiliations are captured for every publication in Web of Science Core Collection. Starting in 2008, each author is also linked to his/her affiliation(s).