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Sigma Seven

company
Organization Business Q850588

Facts

9 properties

Identity

Instance of
business, enterprise, talent agency[4][5]
Official website
www.sigma7.co.jp[9]
Legal form
kabushiki gaisha[10]

Status and dates

Inception
1988[8]

Location

Headquarters location
Tokyo[6]
Country
Japan[3]

Industry and activity

Field of work
seiyū[2]
Industry
tertiary sector of the economy[7]

Relations

Owner of
シグマ・セブンe[11]
🏷️ Also known as
en Sigma Seven en Σ7 ja Σ7 ja シグマ7 ja シグマ・セブン ja シグマセブン ko 시그마 세븐
🔖 Identifiers · 7
Corporate Number (Japan)
4010401013042
Freebase ID
/m/051xccj
OpenCorporates organization ID
jp/4010401013042
Pixiv Encyclopedia ID
シグマ・セブン
Topic's main category
Wikidata item
Visual Novel Database ID
s35622
X (Twitter) username
sigma7face

Report an error or request removal Lineage (PROV-JSON)

🔗 Connections
Instance of 3
business, enterprise, talent agency
Country 1
Japan
Employees / affiliates 1
Norio Wakamoto
Field of work 1
seiyū
Headquarters location 1
Tokyo
Industry 1
tertiary sector of the economy
Legal form 1
kabushiki gaisha
← Affiliation 1
Asuka Ōgame
← Represented by 1
Nana Mizuki
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Summary

Sigma Seven is a business[1].

Related Entities

business Japan Nana Mizuki

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [2] ↑ . Retrieved . wikidata.org.
  5. [6] ↑ . wikidata.org.
  6. [7] ↑ . wikidata.org.
  7. [8] ↑ . wikidata.org.
  8. [9] ↑ . wikidata.org.
  9. [10] ↑ . wikidata.org.
  10. [11] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Sigma Seven. Retrieved November 10, 2026, from https://4ort.xyz/entity/sigma-seven
MLA “Sigma Seven.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Nov. 2026, https://4ort.xyz/entity/sigma-seven.
BibTeX @misc{4ortxyz_sigma-seven_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Sigma Seven}}, year = {2026}, url = {https://4ort.xyz/entity/sigma-seven}, note = {Accessed: 2026-11-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Sigma Seven — https://4ort.xyz/entity/sigma-seven (retrieved 2026-11-10)

Canonical URL: https://4ort.xyz/entity/sigma-seven · Last refreshed:

Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 18w ago · Yirba · 2026-07-02 view diff on Wikidata ↗
    Visual Novel Database ID → s35622
    "Created claim: Visual Novel Database ID: s35622, batch #259958"
  2. 20w ago · Nabbegat · 2026-06-18 view diff on Wikidata ↗
    Legal form → kabushiki gaisha
    Headquarters location → Tokyo
    Topic's main category → Wikidata item
    Owner of → シグマ・セブンe
    + 6 other properties edited (see Wikidata diff for full list)
    "Changed [tr] labels, descriptions or aliases: QuickStatements 3.0 batch #37157"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.