WoT
990 systems live

The Global Classification Knowledge Graph

A unified graph connecting industry, geography, trade, occupations, health, patents, and more - spanning every major classification standard worldwide.

Global Coverage

Countries colored by taxonomy coverage depth

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Colored by primary classification systemGlobal standards only (ISIC / UN)No data

0countries covered ยท click any country to explore its taxonomy profile

Classification Galaxy

Each orb is a classification system - size reflects node count, edges show crosswalk connections

Click any bubble to drill into its systems

Click any system to explore its hierarchy. Drag to rearrange.

System Crosswalks

228,561 connections linking 169 classification systems

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Explore crosswalks

Browse by Category

16 categories spanning every classification domain

Education

Academic programs, credentials, and educational standards

6 systems3,024 nodes
Environmental & Earth Sciences

Conservation, biodiversity, climate data, and earth science classifications

19 systems336 nodes
Financial / Investment

Capital markets, financial instruments, ESG, and government finance

26 systems711 nodes
Geographic

Country, subdivision, and regional classification systems

8 systems6,090 nodes
Life Sciences

Pharmaceuticals, clinical coding, diagnostics, medical devices, biotechnology, and health informatics

101 systems8,573 nodes
Industry

National and international industry classification standards

185 systems99,765 nodes
International Treaties

Global conventions, treaties, and multilateral frameworks

20 systems414 nodes
ISO Standards

ISO management system standards for quality, safety, and sustainability

25 systems665 nodes
Occupational

Skills, roles, occupational frameworks, and professional standards

33 systems5,183 nodes
Product / Trade

Harmonized trade codes and product classification hierarchies

21 systems12,398 nodes
Regulatory & Governance

Regulatory frameworks, compliance standards, and governance codes

99 systems2,897 nodes
Research & Knowledge

Academic disciplines, library classification, and knowledge organization

22 systems1,062 nodes
Scales & Reference

Measurement scales, physical constants, and reference classification systems

21 systems273 nodes
Technology Standards

Networking, hardware, software, and digital infrastructure standards

19 systems305 nodes
Transport & Logistics

Aviation, maritime, rail, and freight classification codes

10 systems174 nodes
Domain Deep-Dives

Sector vocabularies for traditional industries and emerging technologies

375 systems7,071 nodes

Browse by Industry Sector

Jump directly into a sector across all classification systems

Explore by Industry

Pick an industry to discover its classification codes across all global standards

Accommodation
Admin & Support
Advanced Materials
Advertising
Agriculture
AI & Data
Arts & Recreation
Automotive & EV
Biotechnology
Chemical Industry
Climate Tech
Construction
Cyber & Security
Cybersecurity
Defence
Digital Assets
Education
Energy
Environment
Finance
Forestry & Fishing
Gaming & Sports
Healthcare
HR & Labor
Information & Tech
Insurance
International
IT & Software
Legal
Manufacturing
Maritime
Mining
Nuclear & Hydrogen
Other Services
Professional Services
Public Admin
Quantum Computing
Real Estate
Retail & Trade
Robotics & Autonomy
Semiconductors
Space & Satellite
Sustainability
Synthetic Biology
Telecom
Tourism
Transport
Utilities
Water & Environment
XR & Metaverse