| --- |
| license: other |
| language: |
| - ja |
| tags: |
| - japan |
| - company-data |
| - corporate-registry |
| - open-data |
| - b2b-leads |
| --- |
| |
| # RegBase — Japan New-Company Sales List · Free Sample (2026-11-06, 679 companies) |
|
|
| Japan's National Tax Agency (国税庁) publishes the national corporate registry as |
| open data. Every day it announces new corporate-number assignments — but a large |
| share of those announcements are **late publications of companies that were |
| actually designated months or years earlier**. A raw "new registrations" file |
| therefore mixes genuinely new companies with old ones. |
|
|
| **RegBase's enriched list** keeps only the companies whose designation date is |
| the publication date itself, and only the two standard operating forms |
| (株式会社 / 合同会社). This dataset is the **complete free sample** of that |
| product: the full one-day file for the 2026-11-06 publication — all 679 |
| companies, not a truncated extract. |
|
|
| ## How this sample was made (exclusion arithmetic, from the source data) |
|
|
| The 2026-11-06 publication announced **1,404** new designations |
| (処理区分 01). The filter removed: |
|
|
| | Step | Records | |
| | --- | --- | |
| | New designations announced on 2026-11-06 | 1,404 | |
| | Removed: designation date earlier than the publication date (late publications of older companies) | −673 | |
| | Designated on the publication date itself | 731 | |
| | Removed: entity types other than 株式会社 (301) / 合同会社 (305) | −52 | |
| | **This sample (genuinely new companies)** | **679** | |
|
|
| Kept by entity type: 株式会社 468, 合同会社 211. The full disclosure, |
| including per-prefecture counts, is in `summary.md`. |
|
|
| ## Per-field fill counts (measured on the 679 records) |
|
|
| | Field | Filled | |
| | --- | --- | |
| | Corporate number （法人番号） | 679 | |
| | Company name （商号） | 679 | |
| | Company name, kana （商号カナ） | 673 | |
| | Entity type （法人種別） | 679 | |
| | Designation date （指定年月日） | 679 | |
| | Prefecture （都道府県） | 679 | |
| | City / municipality （市区町村） | 679 | |
| | Postal code （郵便番号） | 679 | |
| | Street address （丁目・番地等） | 679 | |
|
|
| The kana name is the only incomplete field: 6 companies have no kana reading |
| in the source publication. |
|
|
| ## Files |
|
|
| | File | Contents | |
| | --- | --- | |
| | `data/enriched_20261106.csv` | All 679 records. UTF-8, **no header row**, 9 columns (schema below). Byte-identical to the product file for 2026-11-06. | |
| | `summary.md` | The product's own summary: filter conditions, the exclusion counts above, per-prefecture counts, column definitions (Japanese). | |
| | `manifest.json` | Verification file with a digital stamp (Ed25519) covering the CSV and summary — see "Verify it yourself" below. | |
| | `regbase-enriched-sample-2026-11-06.zip` | The sample package as a single download: CSV + summary + manifest + Japanese README. | |
|
|
| ## Schema (9 columns, in order) |
|
|
| 1. `corporate_number` — 13-digit corporate number （法人番号）; import as text to keep leading zeros |
| 2. `name` — company name （商号） |
| 3. `name_kana` — company name in katakana |
| 4. `entity_type` — entity type label （株式会社 / 合同会社） |
| 5. `assignment_date` — designation date (equals the publication date for every row) |
| 6. `prefecture` — prefecture of the registered address |
| 7. `city` — city / municipality |
| 8. `postal_code` — postal code |
| 9. `street_address` — street address （丁目・番地等） |
|
|
| ## Verify it yourself |
|
|
| `manifest.json` carries a digital stamp (an Ed25519 signature; format `regbase-manifest/1`). |
| It lists the SHA-256 hash, byte size and record count of each file, so you can |
| confirm the files are byte-for-byte what RegBase produced. The signature proves |
| the files have not changed since signing and were signed with the RegBase key; |
| it does not vouch for the accuracy of the underlying registry data, which |
| follows the source publication. |
|
|
| ## The product |
|
|
| This sample is one day. The product sells the same file per day (BOOTH) and as |
| a monthly bundle (Coconala / note): |
|
|
| - BOOTH (single day): https://regbase.booth.pm/items/9114539 |
| - Coconala (monthly bundle): https://coconala.com/services/4493766 |
|
|
| ## Source and limits |
|
|
| - Source: National Tax Agency corporate-number publication site |
| (https://www.houjin-bangou.nta.go.jp/), daily diff data for 2026-11-06. |
| - No telephone numbers or email addresses: the source publication does not |
| contain them. |
| - No industry/sector column exists in the source data; records cannot be |
| filtered by industry. |
|
|
