A directory of businesses who provide commercial support for Linux and/or FLOSS software (or who rely heavily on FLOSS):

Countrywide

Auckland

Waikato

• BusinessSystemsDevelopments specialise in custom database applications and software solutions, from small intranet sites to mission critical systems for some of New Zealands largest companies.
• Endace designs, develops, sells and supports high-speed packet capture technology, open development environments and multi-function network monitoring appliances.
• FxNetworks deliver high-performance internet and private networking services to businesses, government agencies and the ISP industry.
• HallettITConsulting exists, and they do FLOSS stuff. That's about all we know.
• ItPartners is a Data Center Solution Provider specializing in industry leading server, storage and network offerings.
• OpenOpportunities specialises in training in Open Source Software technologies on multiple computing platforms.
• RimuHosting specialize in Linux Virtual Private Server (VPS) hosting plans using Xen.
• VelocityNetworks is a broadband (high speed) network provider based in Hamilton.

Wairarapa

• WebFarm is a New Plymouth-based Internet services company

Wellington

• CityLink is a broadband (high speed) network provider based in Wellington.

Christchurch

(originally sourced from CategoryCompany)