Someone started a IMDb account I think for our organization over 10 years ago and I just discovered it. How do I access it and link it to to new information? It is listed as Clark Planetarium Productions.
No individual controls any company page; all those pages are controlled only by IMDb.
However, anyone with an IMDbPro account may submit update requests for any company. The IMDb data managers will review the information and if they are persuaded it is accurate will accept it. Therefore there is no need to 'take it over.'
Companies is one of the few sections on the database that is not fully accessible and updateable via a basic subscription (Contacts is another one - and it is related to companies) .
If you or someone at your company has a Pro Account you may use this to submit updates; otherwise you will need to pay to upgrade your account to Pro.