Homeowners
- State Farm Group · 20.2%
- United Serv Automobile Assn Group · 9.2%
- Allstate Insurance Group · 8.4%
- Travelers Group · 6.1%
- American Family Insurance Group · 4.4%

Every property and casualty insurer admitted in South Carolina and every eligible surplus lines insurer, with NAIC numbers, the lines each is licensed for, who writes the most of each line, and the market of last resort when nobody else will.
1,387 property and casualty insurers are on South Carolina's regulator lists: 1,387 licensed (admitted) companies and 0 eligible surplus lines insurers for risks the standard market turns down.
By Sam Alishahi, independent insurance broker · All states
Companies on the U.S. Treasury's Circular 570 (acceptable sureties on federal bonds) that list a South Carolina license, with each one's federal underwriting limit.
Source: the South Carolina insurance regulator company list, read 2026-10-18 and the surplus lines list. SC DOI 'List of Insurance Companies Authorized to Transact Business in South Carolina' as of April 2026; one PDF for every company type, so 'admitted' holds all 2509 rows with the Company Type column kept (filter type in Property & Casualty / Casualty / Property / Surety for P&C admitted). The list has no lines of authority, no domicile and no license date: domicile is blank, mail_state is the mailing-address state. surplus_lines = rows typed 'Eligible Surplus Lines Insurer'; alien=true when the NAIC code is blank or the mailing state is outside the US. NAIC codes blank for RPGs, intermediaries, advisory orgs and alien insurers.
Source: the South Carolina insurance regulator company list, read 2026-10-18 and the surplus lines list. SC DOI 'List of Insurance Companies Authorized to Transact Business in South Carolina' as of April 2026; one PDF for every company type, so 'admitted' holds all 2509 rows with the Company Type column kept (filter type in Property & Casualty / Casualty / Property / Surety for P&C admitted). The list has no lines of authority, no domicile and no license date: domicile is blank, mail_state is the mailing-address state. surplus_lines = rows typed 'Eligible Surplus Lines Insurer'; alien=true when the NAIC code is blank or the mailing state is outside the US. NAIC codes blank for RPGs, intermediaries, advisory orgs and alien insurers. Lines are the regulator's licensed lines grouped into common names; a license to write a line doesn't mean a company sells it to every kind of customer. "Admitted" means licensed by the state and backed by its guaranty fund; "surplus lines" means eligible to take risks the admitted market declines, without rate or form approval and without guaranty fund protection.
Open to use. Cite "Alishahi Insurance insurance company directory" and link to this page. Download every company: CSV · JSON.
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