24 B Dick St, Cambridge

Mon- Fri: 08:30–17:00
07 827 7119

24 B Dick St, Cambridge


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Gina Whyte

You'll find Gina at reception during school hours Monday to Thursday. She has been working on the administration of Green Mouse and helping clients with minor computing issues since 2017. Gina manages ESET Antivirus licenses and books jobs for our clients. She also manages our Facebook Page and website, and posts blogs on both. Gina writes the monthly Green Mouse Newsletter which you can sign up to receive via email, and conducts our training sessions out of the Green Mouse Training Space.  

Gina has lived in Cambridge since 2014 and has two kids at Goodwood School. She enjoys tramping, camping, and renovating her house with her husband.

With a background in admin, Gina is proud to have picked up a few things about computing and can help with basic computing issues. She keeps things running smoothly.

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Heather McEwen

Heather has over 30 years’ experience in computer programming, business analysis, project management and senior management, having worked extensively overseas in Europe, Australia, America, and Canada.

Heather belongs to the Institute of Directors, has been on the advisory board of Women in Technology, was twice nominated for Women in Business – Business Woman of the Year and has held the position of Executive Director of HortiTech NZ, being one of their fourteen founding members.

Heather partnered with Green Mouse as a Director in 2016 and is certainly the person to see to get your business systems streamlined and sorted. 

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Joshua Lambert
Technical Consultant

Joshua joined the Green Mouse Team in 2018 and brings with him plenty of enthusiasm for all things IT. He has a Diploma in Information and Communications Technology and has previously worked in IT, security and with copiers - he's brilliant at fault finding printers.

Simon has brought Joshua up to speed with the systems and requirements of our business and individual clients and they work together on the big jobs. Joshua will also be found working on personal computers and laptops both in and out of the office.

Joshua enjoys reading, playing hockey and everything IT, especially gaming. Between him and Simon, we've got you covered.

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Kerrin O’Regan

Kerrin spent the early part of his career working in various accounting and managerial roles in some of New Zealand and Australia’s largest corporates, including Winstone Ltd, Odlins Ltd and Tubemakers of Australia Pty Ltd.  

Kerrin then moved into the accounting software implementation business in Sydney and Auckland, setting up and training clients in the use of enterprise accounting solutions at the likes of Transpower NZ and Electricorp NZ.  He's definitely our accounting Guru.

Kerrin partnered with Green Mouse in July 2001 and is primarily responsible for the administration, accounting and compliance functions of Green Mouse.

In addition Kerrin is an MYOB Approved partner and has done hundreds of installations of the Accounting and Payroll software throughout the Waikato.

He is also our Retail expert and has implemented many Point of Sale solutions using the Counter Intelligence POS software. 


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Simon Dumble
Senior Technical Consultant

Simon has worked for Cambridge Computer Services (now Green Mouse) since 2004 – an exemplary record of service in the IT industry.

We are proud to boast that Simon would be one of the most experienced and highly skilled people in the IT industry. He is most definitely our Mark Zuckerberg. 

Simon is primarily responsible for looking after our larger, corporate customers frequently now using Microsoft Office 365. Simon employs a mix of onsite and remote managed services skills. If it involves a multi user environment then Simon is your man.