---
title: "大光銀行"
aliases: ["Taiko Bank", "The Taiko Bank", "株式会社大光銀行"]
domain: regional-banks
created: 2026-05-21
last_updated: 2026-07-30
last_tended: 2026-07-30
review_by: 2026-11-21
confidence: likely
tags: [JapanFG, banking, second-regional-bank, niigata, kanto, operating-company]
status: active
sources:
  - "https://www.fsa.go.jp/menkyo/menkyoj/ginkou.xlsx"
  - "https://www.taikobank.jp/company/profile.php"
---

# 大光銀行


## Wiki route

This entry sits under [[regional-banks/INDEX|regional-banks INDEX]]. Read it with [[banking/INDEX|banking index]] for adjacent context and [[financial-licenses/INDEX|JapanFG index]] for the broader system boundary.

## TL;DR

株式会社大光銀行は、金融庁の銀行免許一覧に掲載される新潟県長岡市本店の第二地方銀行。FSA workbook では関東財務局管内の second-regional-bank list に含まれ、wiki では Niigata / Kanto-adjacent second-regional-bank operating-company page として扱う。

## 1. License / group boundary

The following table is scoped to public primary sources (fsa.go.jp, taikobank.jp). It restates licence / structure / product boundaries from those materials and does not invent market share, ranking, or unstated numerical claims. ^[source:fsa.go.jp; taikobank.jp]

| Item | Notes |
|---|---|
| Legal name | 株式会社大光銀行 |
| License route | Banking Act second regional bank; FSA bank license list |
| Group boundary | Independent second-regional bank; SBI alliance context should be read with [[megabanks/sbi-regional-bank-hd]] |
| Home market | Niigata / Nagaoka |
| Wiki role | Niigata second-regional-bank operating-company page |

## 2. Operating model

大光銀行は、新潟県長岡市を本店に retail deposits, SME finance, local consulting, leasing / card-adjacent group services, and regional development support を担う second regional bank。[[megabanks/sbi-regional-bank-hd]] page may reference alliance context, but the bank license and operating footprint sit here. Niigata regional-bank peers は [[regional-banks/daishi-hokuetsu-bank]] と [[regional-banks/dai-shi-hokuetsu-fg]] を参照。

## 3. Why this page matters

- Closes the FSA second-regional-bank exact-name gap for 大光銀行.
- Distinguishes the bank from unrelated companies named 大光.
- Provides a bank-level anchor for Niigata / Kanto-adjacent regional-bank coverage.

## Related

- [[megabanks/sbi-regional-bank-hd]]
- [[banking/regional-bank-consolidation-pattern]]
- [[banking/INDEX]]

## Sources

- FSA: bank license list, second regional banks, as of 2026-05-02.
- Taiko Bank official company profile.