About UD
Your one-stop enterprise technology partner, serving Hong Kong businesses since 1998
UD (UDomain Web Hosting Company Limited) is a Hong Kong company that has delivered one-stop enterprise technology solutions to businesses across Hong Kong and Greater China since 1998. Today UD spans five specialist fields, AI, blockchain, cybersecurity, cloud, and CDN, all delivered by a local team, giving you a complete technology stack through a single partner.
Five solution lines
UD AI
A complete local AI suite spanning AI staff, chatbots, private LLMs, AEO tools, AI lead generation, and marketing modules, helping Hong Kong businesses move from experimentation to production-grade AI.
UD Blockchain
A Hong Kong blockchain pioneer since 2017, covering validator and node hosting (six public chains, 99.99% SLA), BaaS, smart-contract audits, NFTs, tokenisation, DeFi, GameFi, Web3 domains, and crypto payments.
UD Security
A local team holding 17 international security certifications, offering penetration testing, SRAA risk assessment, vulnerability scanning, phishing drills, firewalls, DDoS protection, SSL, and UDetective dark-web monitoring.
UD Cloud
Own Tier III+ data centres certified to ISO 27001 / 9001 / 14001 and PCI DSS, covering cloud servers, dedicated servers, colocation, web hosting, email hosting, domain registration, and cloud add-ons.
UD CDN
A CDN built for Hong Kong businesses, spanning 5 local data centres, CN2 GIA China lines, and 300Gb+ international bandwidth. Six plans cover regional delivery and workload acceleration.
Infrastructure & scale
Certifications & credentials
UD operates across cloud infrastructure, cybersecurity, and blockchain technology, holding the relevant international standards and licences in each field.
Cloud & data protection
ISO 27001 (information security), ISO 9001 (quality), ISO 14001 (environment), PCI DSS (payment-card data security)
Government accreditation
Hong Kong Government public-cloud service provider (OGCIO-recognised, the first web-hosting company in Hong Kong to gain it); OFCA PNETS licence
Data centre & network partners
Cybersecurity
Cloud & systems
Project management
Learn more about UD
Four dedicated pages with deeper company information.
Our team
Founder Tom Chau, the management team, and technical advisors.
→Milestones
Key milestones, certifications, and technical breakthroughs since 1998.
→Customers
25,000+ customers served; a selection of 40 representative brands.
→Partners
25 strategic partners across cloud, security, payments, and blockchain.
→Contact
Hong Kong head office: 18/F Kinox Centre, 9 Hung To Road, Kwun Tong, Kowloon
For full contact details, office hours, social media, and online enquiries, see Contact us.