Board of Directors
Executive Team

Stephen Allen



B.Com., Dip. P.E.


A board member since 1996, Steve became Tatua Chairman in 2003. Steve is a fifth generation farmer, whose family has been in the Piako district since 1886.

The Allen family have been supplying Tatua since the end of World War 1. 


Steve’s career has included time in the commercial sector with IBM New Zealand, and comprises extensive dairy industry experience with directorships on both the NZ Dairy Board and LIC (Livestock Improvement Corporation). More recently Steve has been a member of the Waikato Dairy Leaders Group which oversees development in relation to sustainable dairy farming and water allocation in the region. He is a director of a number of private companies and a trustee of the Waikato based David Johnstone Charitable Trust.

David Muggeridge



David has been a Tatua shareholder since 1986 and joined the board in 1999.

Originally a mechanical engineer, his innovative approach to farming, particularly in the area of pasture management, has led to his property being used for extensive soil fertility trials.

Peter Schuyt



B.Com., MinstD, C.F.Inst.D

An independent board member since 2009, Peter’s involvement in the dairy industry spans over 25 years including CFO of NZ Milk Products (Fonterra) and CFO of the New Zealand Dairy Board. Peter also was CFO of the NZ Post Group.


Peter has a background in strategic and financial management, leadership and governance across major New Zealand based, but globally operating co-operatives and companies. He is currently Chairman of two NZ companies, and a non- executive director of a number of NZ-based organisations involved in retail, export, financial services and research.

Dr Louise Cullen


B.Sc. (Hons) PhD (Lincoln), Dip. Man.


Louise joined the Tatua board in 2016. She has a strong environmental and ecological science background coupled with hands-on farming experience. Her educational background includes degrees in Ecology and Botany and a PhD in Forest Ecology from Lincoln University. Louise is currently a director of several family-owned dairy farming enterprises with her husband Richard, continuing their family farming legacy which began in 1924.


She has worked within a range of industries including research science, environmental consultancy, not-for-profit and commercial management. She completed a Diploma in Management in 2013 and is currently studying towards a NZ Diploma in Agribusiness Management. Louise is also a member of the Primary ITO Industry Partnership Group.

Richard Luxton


B.Com., Dip. AgriBus.


Richard joined the Tatua board in December 2018. He continues a proud family history with Tatua; the Luxton family have continuously supplied milk to Tatua since 1921. He is a sixth generation dairy farmer.


Richard’s career has included time in the Manufacturing and Supply chain industry, both locally and globally, prior to focusing on dairy farming. He has extensive corporate farming experience having been involved in managing two large scale farming businesses in both the North and South Island.  His educational background includes a Commerce degree and Diploma in Agribusiness. In 2013, Richard completed the Kellogg Rural Leadership Programme.


He is a director of JD & RD Wallace Ltd and Kotare Ltd, two Waikato and King Country based farming groups. Richard is also on the St Peter’s School Foundation committee.

Julie Langley




Julie joined the board in November 2019. Julie’s family has been supplying Tatua for four generations, herself becoming a shareholder in 2015.


Julie has coupled a career in advertising, then sales and marketing of Tatua consumer products, alongside operating a dairy farming business with her husband through 50/50 sharemilking and farm ownership.

Ross Townshend


Tech (Massey), AMP (Harvard)


An independent board member since 2009, Ross has a strong dairy operational background with New Zealand Dairy Group, New Zealand Dairy Foods and the wider Australasian dairy industry.


Ross has also held international senior executive positions within the meat, packaging, food and wool industries, as well as in engineering, innovation and consulting. A food technologist by background, Ross has an AMP:ISMP from Harvard Business School. He has farming interests and is also a director of several engineering and private companies.

Mark Dewdney




A board member since 2012, Mark’s links with Tatua go back to his birth, growing up in a house on the Tatua site where his father Neil was Managing Director.


Mark’s extensive dairy industry experience includes various senior executive positions within Tatua, the New Zealand Dairy Group (General Manager), Fonterra (Managing Director Asia Ingredients), Livestock Improvement (CEO) and PGG Wrightson (CEO). He is also an Independent Director of Dairy Goat Co-operative.