第一生命保険

Wiki route

This entry sits under life-insurers INDEX (its domain route). It is the licensed operating company beneath the listed holding page Dai Ichi Life. Read it against Daiichi Frontier Life Insurance and Dai Ichi Neo Life for the in-group peer / contrast, and against the FSA plus Seiho Kyokai for the supervisory / industry-body boundary. As one of the big-four domestic carriers it appears in Japan life-insurance big four.

TL;DR

The Dai-ichi Life Insurance Company, Limited holds a life-insurance company license under the Insurance Business Act and is listed on the FSA’s list of life-insurance company licenses; it is the core domestic life-insurance operating company of Dai Ichi Life (formerly Dai-ichi Life Holdings). Even after the holding company changed its trade name to “株式会社第一ライフグループ” in 2026 年 4 月 and the group brand became “Daiichi Life”, the listed holding company / group strategy page (Dai Ichi Life) and the licensed insurance underwriter with a sales-rep channel (this page) are treated separately. It is one corner of the domestic big four alongside Nippon Life, Sumitomo Life, and Meiji Yasuda Life.

1. License / group boundary

Item	Notes
Legal name	第一生命保険株式会社 / The Dai-ichi Life Insurance Company, Limited
License route	Life-insurance company license under the Insurance Business Act; FSA life-insurance company license list
Supervisor	[[financial-regulators/fsa
Industry body	[[financial-regulators/seiho-kyokai
Group boundary	[[life-insurers/dai-ichi-life
Wiki role	Daiichi Life Group’s domestic life-insurance underwriter (big four)

2. Operating model

Dai-ichi Life Insurance is a major mutual-company-derived listed group life insurer that deploys the standard life-insurance model—premium underwriting, accumulation of policy reserves, asset management matched to long-term liabilities (ALM), and benefit payments—centered on a nationwide sales-rep channel. It provides flagship products such as death protection, medical/cancer protection, and annuities primarily through face-to-face sales, and within the group it divides channels with Daiichi Frontier Life Insurance, specialized in over-the-counter bank sales, and Dai Ichi Neo Life, specialized in agency / specific channels. For the structural difference between mutual-company and stock-company types see mutual vs stock life insurer; for asset-liability management see Japan life-insurance ALM overview.

3. Why this page matters

It separates the listed holding company Dai Ichi Life (capital policy / group strategy) from the licensed insurance underwriter equivalent to a bank license (this page, at the insurance-business level).
It establishes the exact-name operating-company anchor on the FSA’s list of life-insurance company licenses.
It provides a comparison baseline for the in-group channel division of Daiichi Frontier Life Insurance / Dai Ichi Neo Life.

Sources

FSA: 生命保険会社免許一覧 (life-insurance company license list).
Life Insurance Association of Japan (生命保険協会): member-company list.
第一生命保険 official company profile (Daiichi Life Group core domestic underwriter; 2026-04 group rebrand to 第一ライフグループ / “Daiichi Life”).