We've created an easy online tool to look up the number of complaints against insurance companies.
We're the insurance regulator in Washington state, so the data's only for our state. But it can provide some insight into who we hear a lot of complaints about, and who we don't.
Since the market share of these companies varies widely, we also calculate what we call the "complaint index." That's simply the ratio of complaints divided by market share, to make the results easy to compare.