IT Services & Security

Company	Region	Sector	AI layer	Listing	Revenue	Index rank
NTT NTT A Japanese telecommunications and technology holding company providing the data centers, fiber networks, and enterprise IT integration that support AI workloads.	Japan	Telecom & Networking	Power & Infrastructure, Cloud & AI Platforms, Enterprise Applications	TSE: 9432 (Prime Market)	14.4091 trillion yen	#13
Hitachi 日立 A diversified Japanese industrial and digital group supplying critical power-grid infrastructure for AI data centres, semiconductor manufacturing tools, and enterprise AI software services.	Japan	Industrial Automation & Robotics	Power & Infrastructure, Equipment & Materials, Enterprise Applications	TSE: 6501 (Prime Market)	US$70.1B	#26
Lenovo 联想 A global technology group supplying AI PCs, GPU servers, liquid-cooled infrastructure, and enterprise deployment services, acting as a major channel to market for AI hardware.	China	Servers, PCs & ODMs	AI Server Hardware, Edge AI & Devices, Enterprise Applications	HKEX: 0992 (Hong Kong dollar counter)	US$83.1B	#44
Fujitsu 富士通 A major Japanese enterprise IT-services and systems-integration provider, embedding AI into legacy, public-sector, and mission-critical operations through partnerships with global technology and cloud leaders.	Japan	IT Services & Security	Enterprise Applications, Cloud & AI Platforms, Power & Infrastructure	TSE: 6702	3.503 trillion yen	#51
NEC 日本電気 A major Japanese IT services and network infrastructure provider that integrates proprietary generative AI and biometrics into public-sector and enterprise systems.	Japan	IT Services & Security	Enterprise Applications, Cloud & AI Platforms, Model Developers	TSE: 6701 (Prime Market)	Japanese yen 3.5827 trillion	#80
Kingsoft Cloud 金山云 A Chinese cloud provider supplying the compute capacity, model-training platforms, and private-deployment tools that enterprises need to build and run generative AI workloads.	China	Internet Platforms & Cloud	Cloud & AI Platforms, Power & Infrastructure	NASDAQ: KC (ADS)	US$1.4B	#85
Hanwha Systems 한화시스템 A South Korean defense-electronics and ICT provider integrating AI into military radar, satellite imagery, tactical communications, and command systems for national defense programs.	South Korea	Electronic Components	Edge AI & Devices, Model Developers	KRX: 272210 (KOSPI)	3.6642 trillion Korean won	#87
KT 케이티 South Korea's second-largest telecommunications operator, providing the national network infrastructure, data centers, and sovereign-cloud environments required for domestic AI deployments.	South Korea	Telecom & Networking	Power & Infrastructure, Cloud & AI Platforms, Enterprise Applications	KRX: 030200 (KOSPI)	28.244 trillion Korean won	#91
Taiwan AI Cloud 台智雲 A Taiwan-based AI infrastructure and services company that integrates AI compute centers, operates GPU capacity, and deploys sovereign AI models for enterprise and public-sector customers.	Taiwan	IT Services & Security	Power & Infrastructure, Cloud & AI Platforms, Enterprise Applications	TPEx: 7735 (Emerging Stock Board)	NT$2.583 billion	#94
OMRON オムロン An independent Japanese automation and electronics group that supplies the controllers, sensors, and machine-vision systems used to manufacture AI hardware and semiconductors.	Japan	Industrial Automation & Robotics	Equipment & Materials, Edge AI & Devices	TSE: 6645 (Prime Market)	JPY 767.4 billion	#99
Hyundai AutoEver 현대오토에버 A mobility-software and enterprise-IT affiliate of Hyundai Motor Group, providing software-defined-vehicle platforms, digital maps, and smart-factory systems.	South Korea	IT Services & Security	Enterprise Applications, Edge AI & Devices	KRX: 307950 (KOSPI)	US$3.1B	#102
LG Uplus LG유플러스 A South Korean mobile operator providing the data-center colocation, network infrastructure, and enterprise software required for domestic AI deployments.	South Korea	Telecom & Networking	Power & Infrastructure, Enterprise Applications	KRX: 032640 (KOSPI)	15.45 trillion Korean won	#104
iKala 愛卡拉 A Taiwanese enterprise-AI and cloud-services company that provides AI implementation, data integration, and marketing-intelligence software to help businesses operationalize artificial intelligence.	Taiwan	AI Software & Models	Enterprise Applications, Cloud & AI Platforms	Private company		—

Revenue is the latest full fiscal year in each profile. Companies without a US-dollar figure show their reporting currency and sort last.

Bold: the company's main layer. Regular: a layer it also works in.

Equipment & Materials

Tools, chemicals, wafers, and test gear used to make chips

• Hitachi Japan
• OMRON Japan

AI Server Hardware

Servers, boards, components, cooling, and racks

• Lenovo China

Power & Infrastructure

Energy, batteries, networks, and data-center facilities

• NTT Japan
• Hitachi Japan
• Fujitsu Japan
• Kingsoft Cloud China
• KT South Korea
• Taiwan AI Cloud Taiwan
• LG Uplus South Korea

Cloud & AI Platforms

Compute capacity and platforms that host AI workloads

• NTT Japan
• Fujitsu Japan
• NEC Japan
• Kingsoft Cloud China
• KT South Korea
• Taiwan AI Cloud Taiwan
• iKala Taiwan

Model Developers

Companies that train foundation or domain models

• NEC Japan
• Hanwha Systems South Korea

Enterprise Applications

Software and services that put AI to work in businesses

• NTT Japan
• Hitachi Japan
• Lenovo China
• Fujitsu Japan
• NEC Japan
• KT South Korea
• Taiwan AI Cloud Taiwan
• Hyundai AutoEver South Korea
• LG Uplus South Korea
• iKala Taiwan

Edge AI & Devices

Phones, vehicles, robots, and devices running AI locally

• Lenovo China
• Hanwha Systems South Korea
• OMRON Japan
• Hyundai AutoEver South Korea

Bold names have this as their primary layer. Many companies span more than one.