Meet Us 

The seed for Gree-NA was planted in 2020 when friends and former colleagues, Erin Ewing and Tamara Pitelen decided to join forces to start a company that would be another voice in the growing call for us, as a species, to radically transform the way the human race exists so that our activities support, rather than harm, the planet

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Tamara Pitelen

"Doing business sustainably means doing better business, more prosperous business that restores our planet. The outdated 'business as usual' model is over. It been disastrous, let's do better."

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Erin Ewing

"I'm determined to help businesses see the climate challenges through the lens of opportunity. There is a great business case for sustainability."

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We exist to help your business 
achieve sustainable prosperity

Erin Ewing, co-founder, Gree-NA

* Masters of Business, London School of Economics

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"I am passionate about viewing the climate challenge through the lens of opportunity, this is the moment we make everything better."

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Tamara Pitelen, co-founder, Gree-NA

* Business Sustainability Management, Cambridge Institute for Sustainability Leadership, Cambridge University

* Driving Business Towards Sustainable Development Goals, Rotterdam School of Management, Erasmus University

Tamara comes to sustainable business consultancy after a diverse 25-year career in the media; from starting out as a newspaper journalist in New Zealand to running her own magazine publishing house in Dubai and producing the Middle East's first ever mind-body-spirit title, Awakenings Middle East. She brings extensive media experience in print and online publishing, as well as media project management. In the financial field, she was editor of a magazine for SMEs in the Middle East; editor of a wealth management and investment magazine for high-net worth individuals, as well as writer on an expat title of the Financial Times Group.

A natural entrepreneur, Tamara has launched many businesses for both fun and profit on the side, including a media services agency, a publishing house, a social networking enterprise, and a mobile yoga business.