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Sigma IT Customer Reviews & Testimonials

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At Sigma IT, we’re proud to provide responsive, practical and reliable IT support to businesses throughout Auckland and across New Zealand.

Since establishing Sigma IT in March 2026, we’ve been incredibly grateful for the support of our clients, including many businesses that Donald and the team have worked with and supported for a number of years.

Our services include managed IT support, Microsoft 365, cybersecurity, cloud solutions, business internet and VoIP, backup and disaster recovery, networking and Wi-Fi, IT procurement and ongoing technology support.

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Below is a selection of genuine feedback from Sigma IT clients.

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What Our Clients Say

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Tim Woolfield – ★★★★★

“Have been working with Donald & Co for some years. Find them very responsive and practical. Assistance in 365 and associated support has been greatly valued, delivered at reasonable fees. Would recommend their services.”

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Catriona Knapp – ★★★★★

“Great service, they take a proactive approach and address any problems quickly. They take the IT risks and headaches away so we can concentrate on what we do.”

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Tom Kane – ★★★★★

“Great effective service.”

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Martin – ★★★★★

“We currently use SigmaIT for all of our IT support needs. I have been pleased with the responsiveness on support issues as well as the depth of knowledge as we planned our company's security architecture. I highly recommend SigmaIT.”

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Ira Wilkinson – ★★★★★

“Donald and the team at Sigma IT take excellent care of our IT equipment and services. Their service is extremely reliable and fast.”

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Charne Pairama – ★★★★★

“We have worked with Donald for numerous years. He is knowledgeable and reliable. He takes the headaches out of IT for us. Highly recommended.”

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Jo Orawiec – ★★★★★

“These guys are my 'go to' for anything computer related. They explain things in language I understand, get the job done quickly, are very good at communication, and I don't require a second mortgage to pay their account.”

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Marguerite Ranchhod – ★★★★★

“Sigma IT (Donald Singh and Hamish Leys) deliver exceptional and professional service and are a pleasure to deal with. Prompt responses received to calls and emails. IT issues are promptly resolved and any solutions clearly explained in layman's terms.”

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Leisa Nathan – ★★★★★

“Sigma IT has been an outstanding outsourced IT partner for our business. The team is professional, approachable and consistently responsive to our needs. Their communication is always clear and timely, and we can rely on them to resolve issues efficiently and keep us informed throughout the process.

As business owners, knowing our IT is in capable hands gives us real peace of mind. Sigma IT makes our job easier and allows us to focus on running and growing our business. We highly recommend them to any business looking for dependable, responsive and knowledgeable IT support.”

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Avi Goundar – ★★★★★

“Donald and his Team at Sigma have been providing our company IT services for a number of years. They have always been prompt to respond and work with us and provide us solutions with our varying needs in our IT environment. We would highly recommend them to anyone looking for an external IT Provider to support their needs!”

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Noel Thompson – ★★★★

“Always found them to be very responsive, and fast to sort any issues. Donald gets on the phone asap, to try and sort remotely, and then, if needed schedules a visit to repair the problem. Very very good service.”

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Grace Morris – ★★★★★

“Donald has been providing our company with his IT knowledge and support for years. The team has excellent communication, is fast to respond, reliable, and always willing to help. We highly recommend Donald and his team!”

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Chris Faircloth – ★★★★★

“Sigma IT are outstanding. Professional, responsive, knowledgeable, and always a pleasure to deal with. Their support is excellent and consistently reliable. We couldn’t recommend them highly enough.”​

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Daniel Morais – ★★★★★

“Great service from Donald and the Sigma IT team. They are responsive, knowledgeable and always helpful when we need support. We’ve had a very positive experience working with them and would happily recommend their services.”

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Trusted IT Support for Auckland Businesses

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Our clients' feedback reflects what we aim to deliver every day: IT support that is responsive, dependable and easy to understand.

We work with small and medium-sized businesses as well as larger corporate organisations, providing both ongoing managed IT services and assistance with individual technology requirements.

Whether you need help managing Microsoft 365, strengthening cybersecurity, improving your network, protecting business data, moving services to the cloud, sourcing business-grade IT equipment, or simply need an IT team you can call when something goes wrong, Sigma IT is here to help.

Our approach is straightforward: understand the client's business, recommend practical solutions, communicate clearly and provide reliable ongoing support.

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Looking for an IT Support Company in Auckland?

Sigma IT provides professional business IT support and managed IT services from Auckland, supporting organisations with:

• Managed IT support and helpdesk services

• Microsoft 365, SharePoint and Teams

• Microsoft Azure cloud solutions

• Cybersecurity and endpoint protection

• Backup and disaster recovery

• Business internet and fixed IP connectivity

• VoIP and business phone solutions

• Business Wi-Fi and networking

• Servers, workstations and business computers

• IT hardware and software procurement

• IT consulting, planning and ongoing support

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If you're looking for a responsive and experienced Auckland IT company that takes the time to understand your business, we'd be very happy to talk.

Sigma IT Limited