The National Association of Insurance Commissioners maintains a website with information about companies who have entered receivership. NAIC has upgraded the Global Receivership Information Database (GRID) website to include additional information regarding companies in receivership and historical data regarding closed receiverships.
If you click on the following link (https://i-site.naic.org/grid/gridDisc.jsp) you will be taken directly to the GRID terms of use page.
Click "I agree" and you will get a screen that looks like this:
Select "Colorado" to see a list of companies with a history of receivership in the state.
Select this link to see
How Colorado Insurance Companies Are Regulated For Financial Strenght