# Shelter Mut Ins Co · Indiana · Auto · 2025 — State Insurance Department Complaint Index by Company For Shelter Mut Ins Co · Indiana · Auto · 2025, complaint index is 0.56; complaint count is 1; premium written is 36,679,533; index basis is 2025 Auto Complaint Index; naic company number is 23388, verified against its source on 2026-09-14. - **company name:** Shelter Mut Ins Co _(verified: appears in the quote below)_ - **jurisdiction:** Indiana _(our reading, not quoted from the source)_ - **line of business:** Auto _(our reading, not quoted from the source)_ - **year:** 2025 _(verified: appears in the quote below)_ - **naic company number:** 23388 _(verified: appears in the quote below)_ - **complaint count:** 1 _(verified: appears in the quote below)_ - **premium written:** 36,679,533 _(verified: appears in the quote below)_ - **complaint index:** 0.56 _(verified: appears in the quote below)_ - **index basis:** 2025 Auto Complaint Index _(verified: appears in the quote below)_ ## What the source says > 23388 Shelter Mut Ins Co 36,679,533 1 0.56 ## Source - https://www.in.gov/idoi/files/Auto-Complaint-Index-2025.pdf Last verified: 2026-09-14. Review by: 2027-08-26. Part of [State Insurance Department Complaint Index by Company](https://referencesource.org/state-insurance-complaint-index-by-company/).