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 Daiichi Life Group / formerly Dai-ichi Life HD. 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 Daiichi Life Group / formerly Dai-ichi Life HD (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 (Daiichi Life Group / formerly Dai-ichi Life HD) 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

The following table is scoped to public primary sources (fsa.go.jp, seiho.or.jp, dai-ichi-life.co.jp). It restates licence / structure / product boundaries from those materials and does not invent market share, ranking, or unstated numerical claims. ^↗

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 Daiichi Life Group / formerly Dai-ichi Life HD (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.

Related

• life-insurers INDEX
• Daiichi Life Group / formerly Dai-ichi Life HD
• Daiichi Frontier Life Insurance
• Dai Ichi Neo Life
• FSA
• Japan life-insurance big four
• FinWiki index

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”).