Most Active Organisations wrt Ministerial Meetings?

A quick follow on to the previous post on UK Ministers’ meetings… I resolved the differences between organisation names, calculated the weighted degree of each node (which takes into account edge weights, rather than just the degree), and plotted the organisations with greatest weighted degree (node size; the colour ranges blue-red and indicates the actual degree. So a large red node has a high degree (=lots of meetings with different Ministers), and a large blue node has a low degree (few different meetings, but presumably repeated ones).

Active lobbiests

So are these the most active organisations in terms of arranging formal meetings with Ministers?