Auto Insurance Comparison
Quick verdict
NJM comes out clearly ahead Sentry in our overall scoring — but each carrier wins on different dimensions. See the breakdown below before deciding.
Head-to-head
Overall scores, key facts, and what each is known for.
| NJM | Sentry | |
|---|---|---|
| Overall score | 4.35 /5 ★★★★★ Highest overall | 3.75 /5 ★★★★★ |
| Best for | NJM is a mutual carrier with one of the strongest customer-satisfaction reputations in the industry | Sentry Insurance is a major Wisconsin-based mutual whose primary business is commercial insurance — fleet, business owners, group programs |
| Read full review | NJM review → | Sentry review → |
Rating breakdown
How each carrier scores on the dimensions we weight.
| Category | NJM | Sentry |
|---|---|---|
| Customer experience | 4.80 | 3.80 |
| Coverage breadth | 4.20 | 3.90 |
| Affordability | 4.00 | 3.60 |
Pros and cons, side by side
What each carrier wins on, and where each one falls short.
NJM
Full review →Pros
- Industry-leading customer satisfaction in independent surveys year after year
- Mutual structure means dividends to policyholders, not shareholders
- Strong claims-handling reputation with very low complaint volumes
- Competitive pricing for clean records and mature drivers in its footprint
Cons
- Only available in NJ, PA, OH, MD, and CT — no national availability
- Limited brand presence and ad spend means fewer people know it exists
- Less aggressive on telematics and usage-based programs than digital natives
Sentry
Full review →Pros
- Strong financial strength and Wisconsin-mutual heritage
- Solid claims-handling reputation across all lines
- Group programs and affiliations can produce competitive rates
- Multi-line bundling when combined with business or other Sentry products
Cons
- Personal auto is a smaller focus than commercial lines
- Limited geographic availability for personal auto
- Less brand recognition in personal lines than national carriers
Coverage at a glance
What each carrier offers in standard policies.
NJM
Sentry
The bottom line
NJM
If you're in NJ, PA, OH, MD, or CT, get a quote. NJM is one of the carriers most likely to actually deliver on what every insurance ad promises.
Read the full NJM reviewSentry
Sentry's personal auto makes sense primarily if you already have a relationship through commercial or group programs. As a standalone personal-auto carrier, mainstream options will typically fit better.
Read the full Sentry reviewBefore you decide
Rankings are a starting point — your profile decides the rest.
These scores reflect our editorial research across cost, coverage, and customer experience. The right carrier for you still depends on your record, location, and vehicle, so read the full reviews before you commit.