Taiwan Business Registry (MOEA GCIS Taiwan) & Open Business Companies Data: 8-digit Unified Business Number (GUI / BAN), Official Portals & Master Data

What You Need to Know at a Glance: Taiwan Business Registry & Company Master Data (MOEA GCIS Taiwan)

Official business registration in Taiwan is governed through Ministry of Economic Affairs (MOEA) Department of Commerce — GCIS Company Registration Portal, which maintains core legal-entity records indexed by 8-digit Unified Business Number (GUI / BAN). To build a complete institutional picture in Taiwan, analysts cross-reference 13 verified official portals administered by Administration of Commerce, Ministry of Economic Affairs, Administration of Commerce / MOEA, MOEA company registration service, Ministry of Digital Affairs / data.gov.tw. Primary legal-entity lookup routes include Company registration public data digital application (Administration of Commerce / MOEA) and Company registration enquiry (MOEA company registration service).

Complementing the primary register at MOEA GCIS Taiwan, Taiwan maintains specialized public portals for fiscal and taxpayer registration via National Business Tax Registration Information Dataset (Fiscal Information Agency, Ministry of Finance); open data catalogues and statistical business frames through Basic Company Registration Information – Application Two (Administration of Commerce, Ministry of Economic Affairs) and Basic Company Registration Information – Application One (Administration of Commerce, Ministry of Economic Affairs); financial supervision, capital-market disclosures, and LEI records from MOPS/TWSE (Taiwan Stock Exchange / regulator disclosure) and Financial Supervisory Commission (official financial regulator); public procurement notices, official gazettes, and intellectual-property registers such as Procurement notice dataset (Public Construction Commission, Executive Yuan) and Taiwan Intellectual Property Office (official IP).

How the Official Taiwan Business Registry (MOEA GCIS Taiwan) & Public Data Ecosystem Work

Taiwan is one of the clearest open-company-data opportunities in Asia because its official ecosystem combines data.gov.tw company-registration API datasets, the GCIS open-data platform, Swagger/OpenAPI documentation, an official Open Government Data License, Ministry of Finance business tax registration data, procurement notice datasets, listed-company disclosures, IP sources, financial regulator context and GLEIF legal-entity identifiers. That does not make every business use automatic. The correct editorial view is to separate company registration, business registration, tax registration, procurement participation, listed-company disclosure, IP ownership, LEI coverage and contact-data use.

Business vs company registration: Taiwan source names can mix company registration, business registration and tax registration concepts. A normalized dataset should preserve the source category for each field instead of collapsing every identifier into one generic company table.

Licence scope: Open Government Data License v1.0 is strong evidence for reuse where it applies, but users still need attribution, no-misrepresentation handling, source-owner acknowledgement and privacy review. A licence page is not a shortcut around personal-data or sector-specific constraints.

Tax-registration layer: the Ministry of Finance business tax registration dataset is valuable for status and business-tax context, but it is an enrichment layer. It should be reconciled to company-registration records using stable identifiers and update timestamps.

Procurement scope: data.gov.tw procurement notice data supports tender and agency pipeline analysis. It does not prove every supplier, contract, beneficial owner or current legal status.

Official Taiwan Business Registry, Company Data API & Master Data Portals (13 Verified Sources)

Core Corporate Registry, Entity Lookup & Statutory Filings

Company registration public data digital application — Administration of Commerce / MOEA

Data & Access: application workflow / downloadable delivery

Terms & Operational Scope: MOEA application and reuse terms. Application workflow; not the same as an unrestricted anonymous bulk endpoint.

Company registration enquiry — MOEA company registration service

Data & Access: search / enquiry workflow

Terms & Operational Scope: MOEA website and service terms. Search workflow, not a bulk download; may be session or form dependent.

Tax Authority, Fiscal Registration & Customs Identifiers

National Business Tax Registration Information Dataset — Fiscal Information Agency, Ministry of Finance

Data & Access: dataset page / CSV / OAS API documentation

Terms & Operational Scope: Open Government Data License v1.0. Tax registration scope; must be normalized against company registration and not treated as lead-list permission.

National Open Data Portals, Bulk Feeds & Statistical Agencies

Basic Company Registration Information – Application Two — Administration of Commerce, Ministry of Economic Affairs

Data & Access: JSON/XML API via data.gov.tw and GCIS OAS documentation

Terms & Operational Scope: Open Government Data License v1.0. API route, not a full corporate filing archive or marketing-contact permission.

Basic Company Registration Information – Application One — Administration of Commerce, Ministry of Economic Affairs

Data & Access: API / structured data

Terms & Operational Scope: Open Government Data License v1.0. Chinese-first dataset page and endpoint-specific field coverage.

GCIS open data platform — Administration of Commerce / MOEA

Data & Access: API / datasets / documentation

Terms & Operational Scope: Open-data and dataset-specific terms. Dataset-level terms and field coverage must be checked before reuse.

GCIS Swagger API docs — Administration of Commerce / MOEA

Data & Access: Swagger / OpenAPI documentation

Terms & Operational Scope: Open-data API terms. Swagger docs prove endpoints, not legal completeness of every field.

Taiwan Open Government Data License — Ministry of Digital Affairs / data.gov.tw

Data & Access: license page

Terms & Operational Scope: Open Government Data License v1.0. License applies where the dataset explicitly uses it; privacy and source-specific constraints still matter.

Central Bank, Financial Supervision, Capital Markets & LEI

MOPS/TWSE — Taiwan Stock Exchange / regulator disclosure

Data & Access: filings / search

Terms & Operational Scope: MOPS/TWSE terms. Listed-company scope only.

Financial Supervisory Commission — official financial regulator

Data & Access: registers / publications / supervision

Terms & Operational Scope: FSC website and publication terms. Sector-specific, not general company-register coverage.

GLEIF LEI records for Taiwan — global official LEI system

Data & Access: public API

Terms & Operational Scope: GLEIF open data licence with attribution and no-endorsement conditions. LEI coverage is partial and skewed toward financial/cross-border entities.

Public Procurement & Intellectual Property Registers

Procurement notice dataset — Public Construction Commission, Executive Yuan

Data & Access: XML / daily open dataset

Terms & Operational Scope: Open Government Data License v1.0. Procurement notice layer only; not all suppliers or registered companies.

Taiwan Intellectual Property Office — official IP

Data & Access: search / services / publications

Terms & Operational Scope: TIPO terms. IP layer only, not company-register coverage.

Complete Comparison Matrix: Taiwan Business Registry (MOEA GCIS Taiwan), Company Master Data & Open Data APIs

Official Source	Issuing Authority	Access & Data Provided	Reuse & Licensing	Operational Scope & Boundaries
Basic Company Registration Information – Application Two	Administration of Commerce, Ministry of Economic Affairs	JSON/XML API via data.gov.tw and GCIS OAS documentation	Open Government Data License v1.0	API route, not a full corporate filing archive or marketing-contact permission.
Basic Company Registration Information – Application One	Administration of Commerce, Ministry of Economic Affairs	API / structured data	Open Government Data License v1.0	Chinese-first dataset page and endpoint-specific field coverage.
GCIS open data platform	Administration of Commerce / MOEA	API / datasets / documentation	Open-data and dataset-specific terms	Dataset-level terms and field coverage must be checked before reuse.
GCIS Swagger API docs	Administration of Commerce / MOEA	Swagger / OpenAPI documentation	Open-data API terms	Swagger docs prove endpoints, not legal completeness of every field.
Company registration public data digital application	Administration of Commerce / MOEA	application workflow / downloadable delivery	MOEA application and reuse terms	Application workflow; not the same as an unrestricted anonymous bulk endpoint.
Company registration enquiry	MOEA company registration service	search / enquiry workflow	MOEA website and service terms	Search workflow, not a bulk download; may be session or form dependent.
Taiwan Open Government Data License	Ministry of Digital Affairs / data.gov.tw	license page	Open Government Data License v1.0	License applies where the dataset explicitly uses it; privacy and source-specific constraints still matter.
National Business Tax Registration Information Dataset	Fiscal Information Agency, Ministry of Finance	dataset page / CSV / OAS API documentation	Open Government Data License v1.0	Tax registration scope; must be normalized against company registration and not treated as lead-list permission.
Procurement notice dataset	Public Construction Commission, Executive Yuan	XML / daily open dataset	Open Government Data License v1.0	Procurement notice layer only; not all suppliers or registered companies.
MOPS/TWSE	Taiwan Stock Exchange / regulator disclosure	filings / search	MOPS/TWSE terms	Listed-company scope only.
Taiwan Intellectual Property Office	official IP	search / services / publications	TIPO terms	IP layer only, not company-register coverage.
Financial Supervisory Commission	official financial regulator	registers / publications / supervision	FSC website and publication terms	Sector-specific, not general company-register coverage.
GLEIF LEI records for Taiwan	global official LEI system	public API	GLEIF open data licence with attribution and no-endorsement conditions	LEI coverage is partial and skewed toward financial/cross-border entities.

Operational Scope, Access Workflows & What Is Missing from Public Taiwan Registry Records

Listed-company and regulator scope: MOPS/TWSE and FSC sources are strong for regulated and listed subsets. They should carry subset flags because they do not cover the full Taiwan business universe.

IP and LEI scope: TIPO and GLEIF improve matching confidence where entities hold IP rights or LEIs. Coverage is partial and should be joined as enrichment, not projected onto every company.

Start with the data.gov.tw company-registration API datasets and follow the documented GCIS OAS/Swagger routes. Store the exact dataset id, endpoint documentation URL, update frequency, licence and source-owner details before building any downstream table.

The official public-data application page is useful evidence that company registration data can also be requested in digital form. Treat it as an application workflow, not as proof of anonymous unrestricted bulk access.

Use the Ministry of Finance business tax registration dataset for daily-updated business-tax context. Join it with company-registration data using stable identifiers and keep tax-registration status separate from legal-company status.

Use procurement notice data, MOPS/TWSE, TIPO, FSC and GLEIF as enrichment layers. Each source adds a useful business signal, but each one has partial coverage and should carry a subset flag in the CompaniesData model.

• Best core source: data.gov.tw company-registration API datasets and GCIS documentation are the strongest official evidence for Taiwan company data.
• Best reuse frame: Taiwan’s Open Government Data License v1.0 supports broad reuse where a dataset uses it, but attribution, no-misrepresentation and dataset-specific terms still matter.
• Best enrichment stack: Ministry of Finance tax registration, procurement notice data, MOPS/TWSE, TIPO, FSC and GLEIF add useful layers around the registry core.
• Best caution: company, business and tax registration data are not sales-prospecting permission and should not be sold as email or phone consent.
• CompaniesData value: Taiwan is source-rich, but production users still need normalization, source provenance, update tracking, field matching and lawful-use separation.
• Beneficial ownership: do not claim complete public beneficial-ownership coverage from the clean source set.
• Corporate acts: registration APIs and enquiry routes do not necessarily expose every historical act or document image.
• Real-time status: datasets with hourly or daily updates still need source timestamps and local ingestion timestamps.

Frequently Asked Questions: Taiwan Business Registry (MOEA GCIS Taiwan) & Company Data

Is Taiwan a strong open company data country?

Yes. Taiwan is one of the strongest Asia candidates because official company-registration API datasets, GCIS documentation and the Open Government Data License create a clear open-data foundation.

What is the best first source for Taiwan company data?

Start with data.gov.tw company-registration API datasets and GCIS Swagger/OpenAPI documentation, then use MOEA enquiry routes for manual checks where appropriate.

Does Taiwan have a reusable open-data licence?

Yes, many official datasets use Open Government Data License v1.0. Users still need attribution, no-misrepresentation handling, privacy review and dataset-specific source checks.

Is the Ministry of Finance tax dataset a company register?

No. It is an official business tax registration dataset and a useful enrichment layer, but it should be normalized against company-registration data rather than treated as the same source.

Can procurement data identify all Taiwan companies?

No. Procurement notice data supports tender and public-procurement context, but it only covers procurement activity and related public-sector events.

Can open Taiwan registry data be used for cold outreach?

No. Public company, business or tax registration data is not sales-prospecting permission. Contact-data enrichment needs separate lawful basis, suppression and opt-out controls.

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