Compare
Auto-Owners Insurance vs Erie Insurance
Auto-Owners is the bigger mutual, in 26 states with broad niche programs; ERIE is a 12-state reciprocal that tops J.D. Power small commercial rankings.
Verdict
Auto-Owners Insurance and Erie Insurance are policyholder-owned, agent-only carriers that win the same Main Street accounts. Auto-Owners ranked No. 16 among U.S. business insurers by 2025 commercial lines direct premiums written, at $7.64 billion (NAIC), sixth in commercial multiple peril, eighth in commercial auto and eighth in fire. ERIE ranked No. 30 at $3.96 billion, ninth in commercial multiple peril. Both are mostly personal lines companies by total premium; commercial was 29% of the ERIE Exchange's 2025 written premium.
Structure differs. Auto-Owners is a Michigan mutual that writes in 26 states itself, with about 50,000 agents, and extends through affiliates (Concord, Capital Insurance Group) and Atlantic Casualty, which writes E&S through managing general agencies. ERIE is a reciprocal managed by Erie Indemnity for a fee of up to 25% of premiums; it has more than 14,000 agents in 12 states and D.C. and no E&S arm.
Service scores and ratings pull apart. ERIE ranked No. 1 in J.D. Power's small commercial study in 2025 (723) and 2026 (760). Auto-Owners finished last of 15 in 2024 (665) and climbed to fourth in 2026 (726). On ratings, AM Best cut Auto-Owners to A+ (Superior) from A++ in October 2024, because of personal auto losses, and cut ERIE to A (Excellent) from A+ in September 2025. Which is better depends on your state, trade and agent, so have the agent quote both.
Choose Auto-Owners if
- You are in one of its 26 states and outside ERIE's footprint, such as Florida, Georgia, Michigan, Minnesota, Missouri or Colorado.
- You need a niche program: garage and garagekeepers, restaurant, contractors with OCP liability, or a narrow professional E&O form.
- Commercial auto or motor carrier cover matters; commercial auto is its second-largest line at $2.19 billion.
- You want an agent-first claim model with more than 100 local claim offices.
Choose ERIE if
- You are in Illinois, Indiana, Kentucky, Maryland, New York, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia, Wisconsin or D.C.
- You have 50 or fewer employees and rank service highest; ERIE led J.D. Power in 2025 and 2026.
- You want the ErieSecure Business package with Guaranteed Replacement Cost options, plus Cyber Suite, EPLI and key person life.
- You value claims texting and app-based claim tracking.
Key differences
| Auto-Owners | ERIE | |
|---|---|---|
| 2025 commercial premiums (NAIC) | $7.64 billion, No. 16 | $3.96 billion, No. 30 |
| Structure | Mutual | Reciprocal managed by Erie Indemnity |
| Footprint | 26 states; affiliates add more; E&S in all 50 | 12 states and D.C. |
| Buying | Independent agents only; no online quoting | Independent agents only; online form routes to an agent |
| J.D. Power small commercial | Fourth, 726 (2026); last, 665 (2024) | First, 760 (2026) |
| AM Best | A+ (Superior), October 2024 | A (Excellent), September 2025 |
Before choosing, ask which company issues the policy, particularly with Auto-Owners affiliates and Atlantic Casualty, which is non-admitted. Compare replacement cost terms, the auto and workers' comp forms, and how claims are handled in your trade. Neither offers direct online purchase. See independent agent, how to judge a business insurance company, AM Best rating and the business insurance quote comparison worksheet.
Side by side
| Auto-Owners Insurance | Erie Insurance | |
|---|---|---|
| Type | Regional carriers | Regional carriers |
| Business customer service | 800-346-0346 | 800-458-0811 |
| Report a claim | 888-252-4626 | 800-367-3743 |
| Website | auto-owners.com | erieinsurance.com |
| Small business quotes | auto-owners.com/insurance/business-insur… | erieinsurance.com/business-insurance |
| NAIC group | AUTO OWNERS GRP | ERIE INS GRP |
| Headquarters | Lansing, Michigan | Erie, Pennsylvania |
| Founded | 1916 | 1925 |
| Ownership | Mutual insurance company (owned by its policyholders) | Reciprocal insurer owned by its policyholders (Erie Insurance Exchange), managed for a fee by Erie Indemnity Company (Nasdaq: ERIE) |
| Stock ticker | — | Nasdaq: ERIE (Erie Indemnity Company) |
| Where it writes business insurance | 26 states for Auto-Owners itself (AL, AZ, AR, CO, FL, GA, ID, IL, IN, IA, KS, KY, MI, MN, MO, NE, NC, ND, OH, PA, SC, SD, TN, UT, VA, WI); affiliates add northern New England and five Western states, and Atlantic Casualty writes E&S in all 50 states and D.C. | Illinois, Indiana, Kentucky, Maryland, New York, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, West Virginia, Wisconsin and D.C. |
| How it sells | Independent agents only (about 50,000 agents); Atlantic Casualty sells only through managing general agencies | Independent agents only (more than 14,000); online quote requests are routed to a local agent |
| Markets it serves | Small and midsize businesses, farms, plus personal lines and life insurance | Small and midsize businesses, plus personal auto, home and life insurance |
| Online service | Policyholder online access and mobile app for bills, policy documents, proof of insurance and claim tracking; no online quoting. | Online account and ERIE app for claim status and payments, plus a claims texting platform; Business Auto 2.0 processes most policy changes instantly; business quotes come through agents, not online. |
| U.S. business insurance rank (2025) | 16 | 30 |
| Commercial lines premiums written (2025) | $7.64 billion | $3.96 billion |
| Share of U.S. commercial lines (2025) | 1.57% | 0.82% |
| Combined ratio (2025, as reported) | 90.1% (Auto-Owners Insurance Group (all affiliates); basis not stated) | 104.9% (Erie Insurance Exchange and P&C subsidiaries; basis not stated) |
| Largest commercial lines (2025) | commercial multiple peril $2.75 billion; commercial auto $2.19 billion; other liability $1.09 billion; fire $918.8 million | commercial multiple peril $1.92 billion; commercial auto $1.15 billion; workers' compensation $444.7 million; other liability $401.8 million |
| National top-10 rankings by line (2025) | #6 in commercial multiple peril; #8 in commercial auto; #8 in fire | #9 in commercial multiple peril |
| AM Best financial strength | A+ (Superior) | A (Excellent) |
| J.D. Power | Ranked fourth (score 726) in J.D. Power's 2026 U.S. Small Commercial Insurance Study, after finishing last of 15 ranked insurers (665) in the 2024 study. | Ranked No. 1 in J.D. Power's 2026 U.S. Small Commercial Insurance Study (760 points) and No. 1 in the 2025 study (723 points). |
| Best suited to | Small and midsize businesses in its 26 states that want a package policy, commercial auto and workers' comp placed through a local independent agent with local claims service. | Small and midsize businesses in ERIE's 12 states and D.C., such as contractors, restaurants, retailers and offices, that want a local agent and strong claims service. |
| Business insurance lines |
|
|
| Industries it targets |
|
|
Facts come from each insurer's profile, where every figure carries its source and review date. Premiums are personal: compare quotes for the same coverage, not just companies.
Last reviewed October 10, 2026