At Gemelli we want to make a difference in this world with the tools we have in our hand.

We specialise in commercial strategy, project finance, business case development and impact assessment. We want to use these skills to both increase the impact of organisations and to provide great homes in Nepal.

We believe that secure, stable, safe and dry accommodation helps families prosper. And we also believe that empowered businesses can make more of a difference in the communities they operate in.

Your organisation can do more good, and people can have a better life in Nepal. Win-win.


We’ve got a small but passionate and talented team at Gemelli with a broad range of skill-sets. We are always on the look-out to grow our team, if you want to make a difference, click here

James Stewart

James is passionate about seeing businesses and organisations thrive, taking advantage of all the opportunities in front of them.

After a decade of infrastructure project finance work in the international development sector, James’ focus turned to assisting the government restore Christchurch’s infrastructure following the 2011 earthquake.

Having worked for both the public and private sectors in range of countries, James has a broad understanding of what constitutes ‘value’ to different clients.

James holds and has held a number of board roles across the Christchurch YMCA, Soul Capital, the Christchurch Adventure Park and Christchurch City Elim Church.

Ann Martin

Ann enjoys working with clients to provide comprehensive, meaningful and practical advice. She’s an expert project lead who has worked in both the public and private sectors, and has experience in public policy, corporate finance and project management. 

She has worked on a range of policy issues across the Health, Justice and Commercial Investment sectors while an analyst at the Treasury. More recently, Ann was a Project Specialist in the Planning and Funding team at the Canterbury District Health Board, where her responsibilities included, amongst other things, overseeing the Urgent Care and Acute Demand portfolios. Ann also has considerable private sector experience gained during her years as a Manager in the Corporate Finance team at Deloitte. While at Deloitte, Ann provided various advisory services to a range of clients including finance companies, large-scale tourism operators and well-known local retailers.

Rob Christeller

Rob is one of the savviest financial modellers you’re likely to come across. His spreadsheets will reveal where your organisation could be in the coming decades with amazing clarity and complexity. He’s also passionate about seeing social enterprise and people-oriented business grow in sustainable and future focused ways.


Habitat for Humanity

Gemelli assisted the National and Auckland offices in a joint project to devise and model new commercial strategies for assisted home ownership. This helps Habitat for Humanity deliver on their vision of "helping families into simple, decent homes giving them a hand up, not a hand out" in a financially sustainable manner. Learn more about Habitat for Humanity here.

Ohu Development

Gemelli provides ongoing support to Ohu as they "build community by building buildings". Gemelli's work with Ohu focuses on identifying projects that deliver social and economic outcomes and seeing them progressed in commercially viable and financially sustainable ways. More about Ohu can be found here.

Soul Capital

Gemelli assisted Soul Capital establish its internal and external reporting measures to demonstrate the impact they have in the impact investment space. Learn more about Soul Capital here.

The Canterbury Mayoral Forum

Gemelli provided data analysis services to a Food and Fibre economic impact project.

Howick Baptist Health

Gemelli led the development of a business plan for a development site owned by Howick Baptist Health. This project helped define "what success looks like", the development options for the site, financial feasibility assessments and advice on funding, ownership, management options as well as next-steps in the development process. Find out more about Howick Baptist Health here.

Environment Canterbury

Gemelli assisted ECan in a financial review of their current fees and charges to provide assurance they were being implemented in line with policy.

Better Health Moorhouse

Gemelli assisted Better Health Moorhouse with the development of a business case for a proposed future expansion of their operation. This involved working with a wide range of stakeholders to define success and assessing the feasibility of a range of options against this definition.



  • Nadeine Dommisse
    Gemelli assisted Environment Canterbury in a financial review of our current fees and charges to provide assurance they are being implemented in line with policy. The team at Gemelli were professional, efficient and great to work with. The work they produced met all of our expectations and I wouldn't hesitate to work with them again.
    Nadeine Dommisse
    Chief Operating Officer, Environment Canterbury
  • Jamie Newth
    Gemelli helped Soul Capital establish its internal and external reporting measures to help demonstrate the impact they have in the impact investment space.
    Jamie Newth
    Chief Executive Officer, Soul Capital
  • Alan Thorp
    We were very satisfied with James’s work.  He carefully listened to our requirements and clarified that he was correctly implementing them throughout the project.  He was always professional and we ended up with a great finished product.
    Alan Thorp
    Chief Operating Officer, Habitat for Humanity New Zealand