Connecting NZ businesses since 1990

Our aim is to provide solutions that improve your business performance, lower your costs and exceed your expectations - every day.

Who We Are

Sietec is one of New Zealand’s largest, privately-owned telecommunications providers. We design, deliver and support unified communications solutions and contact centres for Enterprise and SMB’s around the country. We deliver network services (data and voice) at wholesale rates as well as offering business security and integration services.


John McAdams

Managing Director

The collective power of our people’s skills is what sets us apart.

Rob Currie

Group Business Manager

Our staff love what they do and it shows.

Brendon Jay

Group Operations Manager

The evidence is in what our customers say about us.

Don Hattaway

Group Finance Director


Our Story

Things sure have changed from when we first starting supplying phone systems and cabling way back in 1990.

Back then, the business consisted of just two guys and a van. MC Hammer ruled the airwaves, Buck Shelford had just been dropped as All Blacks captain and cellphones were so large they had to be carried with shoulder straps. The early 90’s bought with it something that would change the face of communication and in 1991, 1100 NZer’s were connected to something called “the internet”. In 1998 it was Sietec who deployed some of the first VoIP solutions in NZ and led the charge for complete Unified Communications solutions in the early 2000’s.

Fast forward to 2020 and Sietec is a leading ICT provider with branches strategically spread throughout the country. Our team is now 50 strong and the average length of service is 15 years+ – we think that says a lot about who we are as a company. We enjoy the unique position of having solutions and partnerships with two of the world’s top providers of Unified Communications. Our clients include 50% of New Zealand’s top nationwide retailers as well as New Zealand’s pre-eminent Contact Centre’s (111 NZ Police & Fire).

We see opportunity.  We create solutions.  We implement change.

22 years this month – and for most of that time 😉 it’s my work colleagues that keep me coming back.

From Admin to Service to Engineers to Sales to Managers – collectively – we make a good team and can quite comfortably discuss any issue at length to come up with a solution that works for everyone.

Leanne BriggsSietec Group Accountant

See For Yourself

It's not just about having the most impressive and up to date technology (although it sure helps that we do). Our difference is that we empower our partners and clients by working with them at every stage of the process - from consulting, design, sales, implementation, support and training, our total solution and total support philosophy ensures the most successful outcome for your staff and ours.