I'd do a different model entirely.
I'd say to companies, you can have exclusive control of your own page for 0.1 cents per page view.
that way they can edit it to make themselves look great (they do anyway, big companies bombard the wiki page for positive spin and challenge everything requesting citations and putting anything they don't like into drawn out debates).
Just charge them to maintain their own pages. No bugger really takes something like the IBM page seriously anyway. Then the rest of the service stays as is and is paid for.