Who writes warranty in New Jersey
Top insurer groups from the NAIC market share report; the state's list carries no lines of authority.
Zurich Insurance Group wrote the most warranty in New Jersey in 2025, $15.7M and 38.2% of the state's premium; the top five groups hold 93%. New Jersey's company list doesn't say which lines each company is licensed for, so the ranking below is the NAIC's top 10 groups; every licensed company is on the New Jersey page.
By Sam Alishahi, independent insurance broker · All lines in New Jersey
Method and source
Source: the New Jersey insurance regulator company list, read 2026-10-18 and the surplus lines list. Admitted list 'Licensed Insurance Carriers' (Last-Modified: Sat, 17 Oct 2026 15:16:06 GMT) covers every licensed carrier of every kind (P&C, life, health, title, fraternal, HMO...). It gives name, address, phone, NAIC number only: no company type, no lines, no domicile, no license date, so everything is kept and type/lines/domicile/since are empty; filter P&C by NAIC code against another source. Extra fields addr_state/address/phone are the mailing address on the list, not the state of domicile. 25 rows show 'NAIC No. 0' on the list (managed-care / medical-review vendors and purchasing alliances, not insurers) and are kept with naic=''. 6 exact repeats (same NAIC + name, second address) were collapsed to one row. White list prints the same NAIC code for more than one company (kept as printed, verify before matching): 13064 = Tudor Insurance Co. / United National Insurance Co.. Surplus Lines White List dated 2026-09-16: 219 foreign/domestic eligible insurers with 5-digit NAIC codes (domicile NJ set only for the domestic section; foreign rows have no domicile on the list) and 95 alien insurers carried with naic='' and their NAIC IID/AIN number in the extra 'ain' field. 'eligible' is filled only where a footnote gives an approval effective date (this release's additions); other rows have no date on the list. Footnote markers like (A-3)/(NC-3) are stripped from names. "Premium" is direct premium written in the state for the year shown; "share" is that company's part of the state total for the line. A company can be licensed for a line and write none of it, and a surplus lines insurer can write a line without a state license for it.
Open to use. Cite "Alishahi Insurance insurance company directory" and link here. CSV · JSON.
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