Our People

SealesWinslow has a team of experts covering the entire country.

0800 287 325

Nutrition & Quality Manager
Natalie Hughes

Leadership team

Natalie’s philosophy is “It all starts at the grass roots”. Starting with what an animal is eating and the quality of that feed is the basis for great production.

Natalie has taken the same approach to her own skill set. Her passion for further expanding her knowledge is evident in her educational history.

Natalie has both a Diploma in Agriculture and her bachelors in Agricultural Science from Lincoln University. She has been awarded AARN by examination, which is a Ruminant Nutrition qualification in Australia, she has completed a Calf and Heifer course as well as Transition Cow Management through Cornell University and Advanced Ruminant Genetics through Penn State University.

To aid in supporting farmers with interest spiking in the environmental space, she has completed both the Intermediate and Advanced Sustainable Nutrient Management courses through Massey University.

Natalie also has very high expectations with regards to quality and nutrition. As the Nutrition and Quality Manager for SealesWinslow Natalie carries out the feed formulations, looks after the quality systems, and supports the technical development for the national sales team.  Her love of ruminant animals, further education and connecting with others are her key passions.  

Regional Sales Manager Northern
Ryan Scholes

Leadership Team

Before joining SealesWinslow in 2010, Ryan was with Anexa Animal Health. Having worked closely with dairy farmers for almost a decade, Ryan has a good grasp of what it takes to be successful in the dairy industry.

Ryan is passionate about helping local farmers improve the health and performance of their herds in the Matamata, South Waikato and Waihi areas.

Regional Manager Central
Darryn McDonnell

Leadership Team

“Darryn has a wide range of experience in production and operations roles from a 16 year period at George Weston Foods and Weston Animal Nutrition. 

He joined SealesWinslow (Ashburton site) in late 2012 as the Operations Manager and in August 2016, relocated to the North Island as Regional Manager for our central region.

Darryn’s an avid communicator who’s passionate about building a team with a strong customer focus. Darryn and his family live on a small lifestyle block near Whanganui."

National Operations Manager
Tyler Stuthridge

Leadership Team

“Tyler was born and bred in Ashburton and having completed his training at local business RX Plastics, Tyler is a qualified engineer.

Tyler joined SealesWinslow (Ashburton site) in May 2013 as an engineer and quickly emerged as a natural leader. Tyler became the site Operations Manager in December 2016 and was promoted to Regional Manager in July 2017.

Tyler is passionate about running a quality driven site. When he’s not working, Tyler enjoys motor cross and trail bike riding.”

Customer Exp & Shared Services Manager
Nardia Crosby

Leadership Team

"Prior to joining SealesWinslow in 2013 Nardia spent 12 years working in the United Kingdom in Banking, Communications and Research and Development departments as a Service Delivery Manager, ensuring that IT related services and customer service desks ran smoothly.  Back in New Zealand, Nardia worked in the forestry industry as a project manager.   

Nardia has a Masters in Science from Waikato University, majoring in Earth Sciences (Volcanology).

Nardia is passionate about building strong customer services teams and developing processes that mean swift and efficient service to customers."

SealesWinslow Commercial Manager
Bruce Harris

Leadership Team

Bruce has a life long association with farming having attained the top performing supplier to Northland Dairy in the mid 1990’s. As a qualified accountant Bruce spent fifteen years in public practice in Whangarei and a further fifteen years with Ballance more recent taking up the role of Commercial Manager with SealesWinslow.

Bruce attained a MBA (Master of Business Administration) from the University of Waikato in 2010 and has been a qualified accountant for 27 years.

Bruce is very passionate about people and businesses performing to their maximum potential focusing on developing people to drive the best performance from the business ensuring the business is attaining its strategic goals.

Commercial Manager
SealesWinslow team - Rhiannon Kelsey
Rhiannon Kelsey

Leadership Team

Rhiannon is a Chartered Accountant with a strong audit background and experience in the Oil and Gas industry as well as local government.  Having joined SealesWinslow in 2018, Rhiannon is based in Morrinsville and provides valuable commercial analysis and insights across the business. 

Originally from Taranaki, Rhiannon has become a local of the Waikato area, graduating from the University of Waikato in 2007. Rhiannon and her husband now reside in rural Waikato, raising their young family.

National Supply Chain & Regional Manager
SealesWinslow team - SLT Williams
Mark Williams

Leadership Team

Mark comes from a sales and logistics background managing up to 70 staff in a manufacturing plant.
Mark was looking for employment close to home, after him and his wife moved to Morrinsville three years ago.  Mark decided that as the parent company of SealesWinslow is Ballance Agri-nutrients, known to be a great place to work, joined the SealesWinslow team as Morrinsville site manager.
Within his first year with SealesWinslow, Mark has been promoted to Regional Manager Northern. He is working towards identifying and developing talent within SealesWinslow.  He loves to see people grow and is thoroughly enjoying getting to know and to work with the Morrinsville and wider SealesWinslow teams.
Mark and Maureen have two sons and four grandchildren living in the Waikato area, so not too far to go and visit in their 1938 Chevy Flatback.

Regional Sales Manager Southern
SealesWinslow team - Andrew Mitchell
Andrew Mitchell

Leadership team

Previously a dairy farmer for 28 years, Andrew’s farming ranged from being a Federated Farmer Cadet to equity partnership.  Moving away from the farm, Andrew has worked as a store manager and specialist agronomy/nutrition rep.


Andrew has numerous qualifications and brings this learning to the fore with his team and their farming clients, recommending best choices for individual farming needs.


  • Diploma in Agri Business
  • ITO Farm Approved Assessor
  • Dairy Production Systems Course
  • NZ Certificate in Agronomy with strands in Animal Health
  • NZ Certificate in Agrichemical


In his spare time and with his partner, day walks and overnight tramping are top of the list.  Farming for many years, like his partner, they love getting outside and enjoying the country. He also enjoys riding motorbikes and has recently taken up trials riding.  His other passion is music and plays bass Trombone in two brass bands and one jazz band.

Seales Winslow National Sales Manager
Terry Harding
Terence Harding

Leadership team

Terry, started out his career as an Agronomist for a large International Sugar Company in South Africa. After numerous Farm management, business leader and commercial roles, migrated to New Zealand in 2008.

He joined the Ballance Agri-nutrients sales team as a Technical Sales Rep for the Western Bay of Plenty, then moved into a the Regional Sales Manager role for the Eastern Region. An opportunity then came up to focus on the Merchant Channel and soon established and built strong relationships with our key partners.

Always looking for an opportunity to develop, Terry welcomed the chance to join the Seales Winslow Team as National Sales Manager.

In his spare time Terry enjoys, fishing, hunting, tramping, surfing … basically most outdoor activities.

SealesWinslow Business Manager
Bryan Goldsack

Leadership Team

Finance Manager
Kate van den Berg

Leadership Team

Marketing Lead