Meet the Greencore leadership team

Want to discuss your project with our team? Send us a message and we’ll be happy to help.

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Martin Pike


A maths graduate from Oxford University with 30 years’ experience as a strategic risk consultant to the insurance industry, Martin was also a senior business leader across Europe, Middle East and Africa before deciding to build a portfolio career. Martin brings strategic focus and strong financial disciplines to the business, and provides mentoring and guidance to the team. He is also passionate about the potential of changing the carbon footprint of house-building, and creating a new paradigm of low carbon, low energy housing fit for the 21st century.


Ian Pritchett

Managing Director

A physics graduate from Durham University with over 30 years’ experience in specialist construction (historic building repair and eco-buildings). Ian was managing director of IJP Building Conservation Ltd from 1987 to 2007. This is where Ian developed his love of lime and other natural building materials. Ian was managing director, chairman and technical director of Lime Technology Ltd at various times between 2003 and 2013. During this time he pioneered the use of lime mortars in the new building sector and also developed hemp-lime building systems.

Ian has also been involved in the following voluntary roles:

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Piers Ashley-Carter

Construction Manager

A civil engineer with a background in project management. Piers started his construction career working with Ian at IJP Building Conservation from 1992 to 1994. Over the last 20 years he has worked for Sir Robert McAlpine, L&B Civil Engineering, Wates, and Hemcrete Projects Ltd (a subsidiary of Lime Technology). Piers has worked on numerous prestigious projects such as the New British Library, Croydon Tramlink, Paddington Basin, Royal Chelsea Hospital, M&S Cheshire Oaks, The Science Museum Archive and The Triangle.

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Rob Bresnahan

Rob Bresnahan

Factory Manager

Rob has a proven track record in production and process management having previously run the factory for Stewart Milne Timber Systems. Rob has been working with offsite manufactured lime-hemp panels for the last five years. During that time, he has refined the manufacturing processes and introduced a strong Quality Assurance culture. The factory runs like a well-oiled machine under Rob’s leadership.

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Architectural services

We work with a number of associates providing design and architectural services. If you’d like us to consider your services on a project, please get in touch.


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Learn more about Greencore

We are a certified Oxford Living Wage employer