About Us

Operating since 2005 as independent aviation strategy and planning specialists.  With a dedicated focus on commercial planning and strategic advisory services to client airlines, airport companies, government and investors worldwide.  Our team is made up of former airline executives from a deregulated aviation industry environment with a history of successful change, innovation and commercial success.

The Greenstone Airline Planning team's knowledge with its own developed planning tools can provide a clear strategic path for a management team or for understanding aviation economics, market opportunity through to full financial assessment of new airline opportunities.​

Who We Are
The leadership team at Greenstone AP, Grant Smitton and Shane Warbrick are passionate about delivering real results for our clients.

Grant Smitton, BCom

Grant has over 30 years of corporate airline and aviation related experience.  He has specialist expertise in market and competitor analysis, airline strategy, network performance and schedule analysis and design, aviation business modelling, fleet growth and rationalisation.  He is a strategic thinker and is able to read a market and piece together multiple attributes and come up with new strategies and forecasts.  Grant is a fast learner, appreciates the wider context and constantly challenges current practice and develops new smarter strategies and solutions.  New planning systems, fleet rationalisation, revenue forecasting, call centre review, market pricing, low cost competitor response, new service classes, new fleet types, new network and schedule structures, corporate account management, profitability modelling and new markets.  Grant is able to combine his analytical skills with his intuitive thinking to develop well-reasoned and insightful strategies.​

M.S. (Shane) Warbrick, MCom (Hons), FCA, FCIS, MNZID

Shane has more than 25 years of corporate airline and related experience gained internationally, in senior executive poisitions within Air New Zealand (Chief Financial Officer) and Fletcher Challenge (Group Investment Director). He has also gained extensive consulting experience from roles with Boston Consulting Group and Price Waterhouse Coopers with specialist expertise in corporate financing and restructuring, mergers and acquisitions and aircraft leasing.

Our History
Greenstone (also known by its Māori name Pounamu) is a recognizable icon of New Zealand.  The greenstone logo of Greenstone AP is a stylized letter G carved from a pure piece of New Zealand greenstone. 

The Greenstone AP logo also incorporates a stylized koru which is a representation of the unfurling of a silver fern and is symbolic of growth and new beginnings.  The values of greenstone and the koru represent the values of Greenstone AP in terms of new ideas and fresh thinking, growth and solid foundation. 

The green aspect also fits well with our drive for a modern and efficient global aviation industry utilizing the best and most efficient technology and network structures.