Who’s Grading Your Insurance Company? Why Carrier Ratings Matter

I received a request to explain carrier ratings, so that is our next topic! (I love requests, so reach out to me at michelle.mcarthur@hubinternational.com if there’s an insurance term you would like me to explain here!)
So, carrier ratings. The simplest comparison would be that a carrier rating is like a credit score for an insurance company. It’s not something most of us would likely think about, but a carrier’s financial strength is critical to ensure that policies are worth the premium paid for them!
There are several organizations that evaluate and assign carrier ratings. A.M. Best is the most commonly used. You may also see references to Demotech and S&P (Standard and Poor’s).
Some of our commercial lenders set minimum carrier ratings for an acceptable insurance policy. You might see something like this:
- Carrier must be rated by A.M. Best
- B+ or better / Financial Size Category V for admitted carriers
- A- or better / Financial Size Category XII for non-admitted carriers
Sidebar: What is an admitted carrier vs non-admitted?
- Admitted carriers are insurers licensed by the state and backed by the state’s insurance guaranty fund.
- Non-admitted carriers (also called surplus lines carriers) write specialized or hard-to-place coverage but are not licensed by the state, although they must still be eligible/approved to write business through licensed surplus lines brokers.
Back to our example: the letter grade (A, A+, B, etc.) reflects the insurer’s financial strength and the Roman numeral (V, XII) reflects its financial size category. In general, insurers with A-range carrier ratings are considered to have excellent financial strength while lower ratings indicate greater financial risk.
Why does this matter?
A financially strong insurer is better positioned to pay claims, even in the event of catastrophic losses when thousands of claims could be filed at once. This makes the carrier rating just another piece of the puzzle in building an insurance program that protects our clients’ interests!
For a deeper dive, read our article Insurance Company Ratings: What They Are & How They Work
Until next time! MM
About the Author
Michelle McArthur
Senior Program Executive, Complex Commercial

Michelle is a licensed agent and has a wealth of experience spanning over two decades. She began her career in the outsourced tracking space, where she worked from 2001 to 2019, including a notable tenure with HUB in 2015 and 2016. She then transitioned to the commercial retail insurance sector for several years, serving as an Account Executive at Lockton then Gallager, specializing in real estate clients.
In her current role as Senior Program Executive, Michelle oversees complex commercial accounts and services with a focus on account management, commercial products, and supporting operations. Her diverse background enables her to effectively navigate the intricacies of the commercial insurance landscape.