Hong Kong · Est. 2002

Provide the edge a company needs to outsmart, outpace and out-deliver competitors

Deer Network Systems Limited designs, secures and manages the communications and infrastructure that keep hospitality, enterprise and critical operations running — around the clock.

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24/7 Round-the-clock support

Est. 2002 Serving businesses since 2002

HK · TH · UK Hong Kong · Thailand · United Kingdom

Why Deer Network Systems?

What sets us apart for clients who cannot afford downtime

Four practical differentiators — regional presence, certified delivery, security-first design and round-the-clock support.

24/7 round-the-clock support

Coverage that matches hospitality and enterprise hours — so incidents get a specialist response whenever systems need attention.

Regional support

On-the-ground engineers across the regions we serve, who understand local sites, compliance expectations and how properties actually operate day to day.

Certified engineers & delivery

Hands-on networking and security specialists across Cisco, Huawei, Ruckus and other leading brands — ready for design, cutover and recovery.

Security-first delivery

Threat management and hardened controls built into the architecture from day one — not bolted on after go-live.

How our systems work

Our infrastructure knowledge runs deep so your business will reach greater heights.

From architecture and secure build-out through monitoring and 24/7 response, our team stays with you after go-live.

What We Do

Our Services

End-to-end communications, network infrastructure and managed operations for hospitality and enterprise environments that need reliable uptime.

Unified Communications

Enterprise-grade IP telephony and 3CX deployment solutions — delivering seamless multi-device voice, video conferencing, and mobile integration for modern hybrid workplaces.

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Solutions For Hotels And Serviced Apartments

Property-wide ELV for hotels and serviced apartments, including data, voice, CCTV, access control, TV CABD and other related systems.

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Wireless & Enterprise Networking

High-performance WLAN planning, site surveys, and secure enterprise switching architectures designed for seamless roaming and high user density.

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Network Infrastructure & Security

LAN and WLAN design, switching and routing, with detection and protection controls that harden infrastructure against attack and misuse.

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IT Lifecycle & Asset Management

End-to-end hardware procurement, warranty extensions, sustainable technology sourcing, and certified secure asset disposition (ITAD) to maximise operational value.

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Managed Services

Proactive monitoring, maintenance and restoration support — with clear escalation to specialists when incidents need hands-on recovery.

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Innovate to succeed

If you don’t innovate fast, disrupt your industry, disrupt yourself, you’ll be left behind.

We help organisations modernise with communications, network consulting, threat management and cybersecurity practices shaped around how they operate day to day.

We want to

Study your business so we can apply the right support services.

From communications and network consulting to threat management and cybersecurity maintenance, we assess your environment and put the right safeguards in place.

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Clients