Top 10: Data Centre Companies in ANZ

Australia and New Zealand’s data centre markets continue to evolve fast, shaped by growing cloud demand, rising AI workloads and stronger calls for sovereign infrastructure. 

These top 10 regional providers are not only scaling capacity but also innovating around sustainability, connectivity and operational resilience. From AirTrunk’s hyperscale growth and CDC’s defence focus to Microsoft and AWS rolling out new regions, each company delivers critical infrastructure that supports the region’s most vital industries, from finance to government. 

With edge deployments, renewable power strategies and high-security compliance now core features, the Australian and New Zealand data centre sector represents one of the most dynamic ecosystems globally. 

These 10 companies are leading that charge, supporting both local enterprise and international tech giants, while also aligning with ambitious net-zero targets. Their efforts ensure the region stays digitally competitive and resilient in the face of growing global infrastructure demands.

10) Macquarie Data Centres

• Location: Sydney, Australia
• CEO: David Tudehope
• Employees: 400+

Macquarie Data Centres builds and operates sovereign data centre infrastructure designed for secure government and hyperscale workloads. Part of the wider Macquarie Technology Group, its operations focus heavily on defence-grade facilities, especially its Canberra and Sydney centres. 

Its IC3 Super West facility adds further scale to the Macquarie Park campus, supporting Australian businesses and government agencies looking for high-security colocation and cloud services. The company aligns with key compliance frameworks, including the Australian Government’s Hosting Certification Framework.

9) Digital Realty

• Location: Melbourne and Sydney, Australia
• CEO: Andy Power
• Employees: 2,300+

Digital Realty operates one of the world’s largest global data centre footprints and in Australia its footprint includes SYD10, SYD11 and MEL10. The company focuses on interconnection, hybrid IT and supporting hyperscale cloud providers. Its investments in PlatformDIGITAL create scalable infrastructure that supports digital transformation across sectors. Its Australian operations are increasingly focused on sustainable builds, with the firm sourcing renewable energy and aligning with science-based emissions targets. 

8) Microsoft

• Location: Multiple cities, including Canberra, Sydney and Melbourne
• CEO: Satya Nadella
• Employees: 220,000+

Microsoft builds and operates its Azure cloud infrastructure across Australia and New Zealand through a growing number of data centres and availability zones. Its facilities in Canberra are certified to handle Protected-level government data, operated via partnerships with Canberra Data Centres. With new Azure regions launching in Melbourne and Sydney, Microsoft is strengthening resilience and reducing latency for local cloud users. These investments align with public sector cloud strategies and hybrid architectures, placing Microsoft in a strategic position for those tracking sovereign cloud adoption in ANZ.

7) AWS

• Location: Sydney, Melbourne and Auckland
• CEO: Matt Garman
• Employees: 1,000+ in ANZ

Amazon Web Services (AWS) continues to scale its infrastructure footprint across Australia and New Zealand, including the launch of its second Sydney Region and an upcoming Auckland Region. AWS supports public sector clients with IRAP-assessed environments and is building hyperscale zones to meet growing demand from AI, analytics and government workloads. With a commitment to power operations with 100% renewable energy by 2025, AWS integrates sustainability into expansion plans. AWS’s regional growth offers resilient and compliant cloud infrastructure.

6) DCI Data Centers​​​​​​​

• Location: Adelaide, Australia
• CEO: Sumit Mukhija
• Employees: 100+ 

DCI Data Centers is a specialist operator of secure, scalable facilities across Australia and New Zealand, backed by Brookfield Infrastructure. Its recent expansion includes data centres in Adelaide, Sydney and Auckland, with a clear focus on sovereign capability and energy efficiency. 

DCI’s Sydney SC1 facility, for instance, integrates sustainable building design with Tier III reliability, targeting hyperscalers and enterprise clients. DCI aligns its build strategy with local grid conditions and energy market regulations.

5) Global Switch

• Location: Sydney, Australia
• CEO: Ashley Muldoon
• Employees: 250+

Global Switch operates one of the largest carrier-neutral data centres in the Southern Hemisphere, located in Sydney West. Its facility is a critical hub for cloud providers, telecoms and enterprises seeking connectivity and scale. Global Switch Sydney West Campus offers more than 70,000 square metres of space, with strong energy efficiency performance and industry certifications. Global Switch's role as a core internet exchange and its multi-tenant model make it an appealing infrastructure partner.

4) Equinix

• Location: Sydney, Melbourne, Brisbane and Perth
• CEO: Adaire Fox-Martin
• Employees: 12,000+ globally

Equinix operates IBX data centres across Australia, with the SY series in Sydney acting as a key interconnection hub. Equinix’s xScale facilities in Sydney target hyperscale cloud needs, while its Melbourne and Perth data centres support edge deployments. Equinix continues to lead in green energy procurement, having committed to 100% renewables globally. It also plays a major role in connecting subsea cable systems to the domestic market. Within the realm of  interconnection and global reach, Equinix’s footprint is vital to multicloud and network-rich architecture.

3) CDC Data Centres

• Location: Canberra and Sydney, Australia
• CEO: Greg Boorer
• Employees: 700+

CDC Data Centres specialises in high-security, sovereign cloud infrastructure built for federal and state government workloads. Its facilities in Canberra and Sydney are some of the most secure in the Southern Hemisphere, compliant with government hosting frameworks and physical security standards. 

CDC also expands into New Zealand with new data centre campuses under construction. Its approach to carbon neutrality includes on-site renewables and long-term energy procurement. CDC offers a compelling model for secure, scalable and sustainable data centre operations across the public sector.

2) NextDC

• Location: Brisbane, Australia
• CEO: Craig Scroggie
• Employees: 400+

NextDC operates a network of Tier III and Tier IV data centres across Australia, delivering high-density, carrier-neutral infrastructure in key capital cities. Its expanding portfolio includes S3 in Sydney, M2 in Melbourne and B2 in Brisbane, offering scalable capacity for enterprise and hyperscale customers.

Each facility is built with a strong sustainability focus, featuring NABERS-rated energy efficiency and powered by renewable energy. The company’s AXON platform provides secure, low-latency connectivity to major public clouds. NextDC combines resilient design, interconnectivity and ESG-aligned operations, making it a leading provider of digital infrastructure in Australia’s evolving cloud and data centre landscape.

1) AirTrunk

• Location: Sydney and Melbourne
• CEO: Robin Khuda
• Employees: 300+

AirTrunk designs, builds and operates hyperscale data centres across Asia Pacific, with SYD2 in Sydney and MEL2 in Melbourne serving as major capacity hubs in Australia. Its facilities support the world’s largest cloud providers, offering multi-megawatt scale, low-latency connectivity and advanced energy efficiency. 

AirTrunk continues to expand rapidly, with a strong focus on sustainability and speed to market. The company uses renewable energy and innovative cooling systems to maintain industry-leading Power Usage Effectiveness (PUE). AirTrunk sets the standard for scalable, cloud-ready and environmentally responsible infrastructure in the ANZ data centre market.