Enterprise-grade IT services, security, and strategy for mid-sized Australian businesses.

Computer One provides IT services that support and improve the systems, infrastructure and security Australian organisations depend on to operate every day. From responsive service desk support through to managed IT services, disaster recovery, cloud services and cyber security solutions, we keep business systems stable, secure and running as they should.
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Comprehensive IT Services

Computer One provides IT services across the full lifecycle of business technology. From responsive service desk support and cyber security management through to infrastructure projects, cloud services and hardware supply, we help organisations maintain stable, secure and well-managed IT environments.

Our team provides ongoing support, proactive monitoring and practical technical expertise to ensure business systems remain reliable and aligned with operational requirements.

With Australian-based engineers available whenever support is required, organisations gain consistent, accountable IT services that keep technology running smoothly and support day-to-day business operations.

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Proactive IT Services with Fast Response

Australia-wide

From city data centres to a dusty mine site near Mt Isa, the white beaches of the Solomon Islands and even the muddy jungles of PNG, Computer One supports organisations wherever their operations take them.

Our engineers work across a wide range of settings, providing both on-site and remote support to keep business systems operating reliably. With a proactive approach to IT management and ongoing system oversight, we help organisations resolve technical issues quickly while maintaining stable, secure IT environments.

When you talk to Computer One, you’re speaking with an IT services partner that can design, specify, supply, install and maintain the technology your team relies on. We provide a single, accountable source of IT services for all new and existing systems within your organisation.

What You Can Expect From Computer One

  • Australian-based team delivering support and services locally

  • Service desk team ready to respond within 60 seconds

  • Rapid response engineers available for urgent and emergency issues

  • Proactive IT maintenance to reduce downtime and protect productivity

  • Projects team supporting on-site and complex technology deployments

  • Security services aligned with the Australian Cyber Security Centre’s Essential Eight and other security frameworks

  • Senior solution architects and consultants supporting technology strategy

  • Offices in Brisbane, Sydney and Melbourne
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Why Choose Computer One?

Computer One delivers IT services designed to support the operational demands of mid-sized Australian organisations. Our experienced team works closely with clients to develop practical technology strategies that keep systems stable, secure and aligned with your business objectives.

Through a combination of responsive support, proactive oversight and structured managed IT services, we help organisations reduce recurring technical issues while improving the reliability and performance of their IT infrastructure.

Computer One brings together service desk engineers, solution architects and business technology consultants who work together to support the full lifecycle of your IT environment.

Whether you require cyber security solutions, cloud platforms, automation or additional technical support, Computer One provides the expertise and accountability organisations look for in a long-term technology partner.

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Strategic IT Foundations for Modern Organisations

Proactive IT services that support your internal IT team or operate as your primary provider.

Modern organisations depend on stable, secure IT systems that are actively governed and aligned with operational priorities. Computer One provides structured oversight of IT systems to ensure technology supports operational performance, security requirements and long-term organisational resilience.

Through structured managed IT service agreements, organisations gain consistent oversight of their IT systems, proactive monitoring and clear accountability for how technology is managed across the business.

Computer One helps organisations build technology environments that support productivity, stability and long-term business success. From strengthening security against evolving cyber threats to implementing resilient infrastructure and disaster recovery solutions.

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industry expertise

These Clients Trust our IT Managed Services

Exceptional customer service is one of our core business objectives with managed IT support services, but don’t just take our word for it. Here’s why other Australian businesses trust Computer One as their IT and computer support provider:

Instant service

Industrial Gas Supplier

Love your work and understand you are busy with so many requests. 🙂

International Fund Management Co

Sagar fixed issue very promptly without any issues

Civil & Mining Staffing

Issued rectified in a speedy manner.

Body Corporate Manager

It just happened without asking twice.

Cargo Logistics Provider

Promptly fixed the issue

Farm Irrigation Suppliers

Very patient.

Junior Mining Company

Fast and quick to response

Global employment compliance specialist

Tommie was very helpful in resolving the problem in a timely manner

Specialist Medical Clinic

Ticket completed promptly without error

Insolvency firm

Good, quick response

Sprinkler System Manufacturers

Excellent work in resolving my malicious email issue promptly.

International Retail Brand

Good Customer service.

Commercial Electrical Contractors

Support was great and very patient with me. Thankyou

Gym Chain Operator

I have found the Technical support provided is exceptional

Mortgage Broker

Very fast competent help

Private Office

Absolutely effortless and a pleasure to deal with

SEQ Mining Co.

Quick and helpful

International Charity

I was happily assisted until the issue was resolved. Thank you.

Civil Contractor

The service is always great and the technical people are human and understand.

Business Equipment Brokers

Calls are always answered quickly and support is provided with good results.

Equipment Finance Brokerage

Problem solved - Thanks Tom

Senior Advocacy Organisation

Requested Friday- completed Monday

500+ Staff Agribusiness

License was applied quickly and user did not lose productivity

Project Builders

Quick reply

Institutional-Scale Grower

Thanks for being so responsive and taking the time to understand the issue.

RTO

Issue is resolved perfectly.

Mining Monitoring Services

Thanks for the quick response

Global workforce compliance expert

Quick and easy

Commercial Flooring Providers

Michael was very quick to respond and fix my problem

Agricultural Irrigation Systems

Solved issue prompt

International Transport Consultants

Chee assisted to get all the network config working at our new branch site, thank you so much!!

Community Health Services

Completed quickly and efficiently

Private Member Organisation

Computer One has always attended to our computer issues in a timely and professional manner

SEQ Body Corp Manager

Very helpful and fast response time.

National Beauty Chain

I am able to use my laptop freely now 🙂

National Home Furnishing Retailer

C1 were on to it quickly. Followed the expected protocols and completed and reported follow up checks.

Environmental Impact Group

Thank you very much Adam. My Monday is now turning into a "happy" Monday.

M&A Lawyers

Prompt action, well done

QLD RTO

The ticket was resolved in a timely manner which is much appreciated at this time of the year!

Strata Management

Thanks so much for the help troubleshooting, and the quick response. Much appreciated!

Private Health Insurer

Support was good, and quick response

Cloud Software Provider

Good speed and accurate execution

Multinational Employment Compliance Authority

Communication on the work flow from start to finish was exceptional

PNG Gold Mine

Issue was resolved quickly

Multidisciplinary design studio

Actioned straight away and up, running within a few minutes.

SME Finance Specialists

Great job

Residential Rehabilitation Service

Good job sharepoint gurus 🙂

Mid‑Tier Gas Producer

Great friendly service. Issues with computer were resolved quickly. Very grateful, thankyou.

NSW Community Housing

Good customer focused and well mannered.

Electrical Infrastructure Provider

Thanks Gavin, Chee and team for the quick response on this one!

Mineral Exploration Company

No issues, did what was requested and asked me to check that it was working before logging out of my computer

Metal Fabricator

Efficient, willing and competent, great to work with

Recruitment Specialists

Daniel saved the day and me a huge amount of stress. Problem fixed in no time. Thank you

Mental‑health Support Provider

Because the problem is finally fixed and my day is so much more productive and less stressful. Thank you again.

QLD Law Firm

Good advice following listening to the request and finalised in an acceptable time frame.

Global Resource Group

Great service

Agricultural Group

Very helpful and patient. Very satisfied

SME Accounting Practice

Quick response, good communication

Transport Analytics Firm

Michael is great

NFP Counselling Provider

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Three Locations. One number

Whether you need on-site or remote monitoring and support, we’re the managed IT service provider that can help you. We provide technology infrastructure management in Brisbane, Sydney and Melbourne locally, as well as servicing other regions of Australia and the Pacific.
1300 667 871
Brisbane Office
Level 5, 488 Queen Street Brisbane QLD 4000
Sydney
Level 21, 133 Castlereagh Street Sydney NSW 2000
Melbourne
Level 19, 180 Lonsdale Street Melbourne VIC 3000
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One Source of Truth

Keep up-to-date with the latest in IT support and business technology. Here is a selection of our latest articles. Follow this link to see all our Industry News:

September 29, 2026
AI Agent Security Risks: The Medicare Breach Was Access Control Failing

AI Agent Security Risk is rapidly emerging as the biggest cybersecurity challenge facing organisations. Recent incidents highlight how autonomous AI systems can access, process and expose sensitive data in unexpected ways, and how Australian businesses risk becoming vulnerable to a new generation of AI-driven security breaches.

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September 1, 2026
7 Factors to Consider When Choosing an MSP in Australia

This Managed IT Services Evaluation guide outlines seven key criteria for selecting an Australian managed service provider, including response times, cyber security, local support, scalability and co-managed IT. It compares leading providers and highlights what mid-sized organisations should assess before choosing an MSP.

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August 25, 2026
Microsoft 365 Data Classification Best-Practice

Discover why Microsoft 365 Data Classification is essential for data security, compliance and governance.
Learn how data classification, security posture assessments and backup strategies work together to reduce risk and strengthen Microsoft 365 environments.

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August 18, 2026
What Is Application Control?

Application Control or Allowlisting is one of the most effective ways to prevent ransomware and malware attacks. Learn how allowlisting works, why it's a core Essential Eight control, and how modern deployment makes it easier than ever for Australian businesses to strengthen cyber security.

Read More
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