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Catalyst began outsourced services in 1997 with an application hosted on two servers for Plumbing World. From these small beginnings, Catalyst has grown consistently year by year to the point where they are now New Zealand's largest open source service provider.

Open source technologies have enabled Catalyst not only to grow as a company, but also to design, build and host IT systems of national and international significance for organisations like Telecom New Zealand and Intel.
Today they provide open source solutions and services for a wide variety of organisations, including schools, universities, government departments, small business and major corporations.


Python Software Foundation


The mission of the Python Software Foundation is to promote, protect, and advance the Python programming language, and to support and facilitate the growth of a diverse and international community of Python programmers.

The majority of the PSF's work is focused on empowering and supporting people within the Python community. The PSF has active grant programs that support sprints, conferences, meetups, user groups, and Python development efforts all over the world. In addition, the PSF underwrites and runs PyCon US, the primary Python community conference.

Being part of the PSF means being part of the Python community. Recently we changed the PSF to an open membership organization, so that everyone who uses and supports Python can join. To learn more, visit https://www.python.org/psf/membership.



ARANZ Geo Limited designs and develops 3D geological modelling solutions for the mining, geothermal and hydrogeology industries. The Leapfrog suite of products enable geologists to generate geological models in a real 3D environment dramatically faster than traditional modelling methods through the use of implicit modelling.

Based in Christchurch, ARANZ Geo's core competencies lie in the research and development of algorithms for scattered data and surface interpolation as well as sophisticated 3D visualisation. The company employs a highly skilled workforce which includes mathematicians and software engineers, many of whom are PhD graduates. Open Source Software including particular Python are used extensively.

ARANZ Geo has a network of Local Support Offices throughout the world, sited close to major mining areas including Canada, United States of America, Peru, Chile, Brazil, Denmark, Turkey, South Africa and Australia.



Things have changed since the first Yellow book was launched back in the 1960s. It’s a big part of our history, and we’re proud of it. But the world is going digital and we have exciting new tools at our disposal.

Now we have products to help you showcase your business across a huge range of online channels, alongside print, mobile media and the trusty Yellow products you remember.

Today you can get a complete digital solution that lets you show the best sides of your business, all the things that make you who you are.

Whether your business is big or small, we've got the right marketing solutions to get you noticed. 

We can create a solution that fits your business. And the best part is - we do it all for you. So you can focus on the day-to-day running of your business.


Otago Polytechnic


University of Otago



Iris Data Science



No Starch Press


Manning Publications


Supported By

Otago Community Trust