Our People
SealesWinslow has a team of experts covering the entire country.
Ange Redman
Animal Nutrition TSR - Hauraki Plains & Coromandel
Charlotte van der Hulst
Animal Nutrition TSR - West Coast, Nelson & Tasman
When British-born Charlotte van der Hulst decided to step away from contract milking she wanted a role where she could still have day-to-day contact with the dairy industry she loves. She has found her perfect role at SealesWinslow as the West Coast, Nelson and Tasman Technical Sales Representative. She has traded in 5am starts in the cow shed for weekly visits to dairy farmers across the region, using her hands on experience to help them uncover how good nutrition can boost farm production and profitability. Read Less
Craig Robinson
Animal Nutrition TSR -Taranaki
Craig has lived in the Taranaki region for a vast majority of his adult life after growing up on his Manawatu family farm. He has a strong background in Rural Finance, Animal Health and combined with his farm systems knowledge, knows how to add value through nutrition to any farming operation. Craig currently lives in New Plymouth and has two teenage sons. Read Less
Kenton Sinclair-Donnelly
Animal Nutrition TSR - Canterbury
Kenton dairy farmed for 14 years, 10 years in Methven, Mid Canterbury and four years on the West Coast of the South Island, managing farms for 12 of the 14 years. Prior to dairy farming he was an aircraft engineer for 28 years specialising in chemical engineering, 20 years for the Royal NZ Air Force and eight years with Air NZ. Whilst dairy farming he realised the importance of nutrition, working closely with Nutrition Specialists to optimise production and upskilling by completing nutrition courses. He brings his passion nutrition to this role to provide results focused assistance to his clients to achieve their goals and optimise their business success. Outside of work he spends time with his family and maintaining his fitness. Read Less
Mark Mellsop
Animal Nutrition TSR - Eastern Bay of Plenty, Rotorua, Taupo
Chances are you might already know Mark, who joined SealesWinslow at the beginning of 2012. Before that he was with RD1 for over 20 years, including a long stretch as branch manager of the Reporoa and Te Puke stores. Mark is SealesWinslow Technical Sales Representative for Tauranga, Whakatane, Rotorua and surrounding areas within the Bay of Plenty. Having supported farmers all his working life, Mark has a great understanding of the dairy industry and the challenges and opportunities that go with it. His knowledge of local conditions is unbeatable and he’s a great person to turn to for advice on increasing the health and performance of your herd. Read Less
Peta Hamilton
Animal Nutrition TSR - Lower North Island
I was born and bred in Whanganui and grew up on a sheep and beef farm. I have had a passion for farming from a young age. After meeting my husband, Andy, and following him around New Zealand as he chased the high-country sheep and beef farming dream in the South Island, I decided to throw myself into relief milking, calf rearing, and working for LIC, where I found dairy farming really interesting – especially raising quality calves and young stock. I started my journey within the rural retail sector with PGG Wrightson in Lumsden before continuing in the Whanganui PGG Wrightson store after moving back home in 2021. I have three daughters, Quinn, Honor, and Geva, whom I really enjoy spending time with, whether it be driving around the countryside to different horse events, heading to WOW in Wellington, or spending time at the beach. I am an avid sports fan, especially of Netball and Rugby. I help coach a local school netball team and spend most winters on the sideline watching my daughters play. I am looking forward to getting out and about on the farm and getting to know farmers within my region. Read Less
Sue Avison
Animal Nutrition TSR - South Waikato
Sue joined the SealesWinlow team based in Morrinsville as a customer service assistant in 2007. Having previously worked for 17 years in the service department at Maber Motors (part of Power Farming) assisting farmers with service and repairs, Sue brings an abundance of understanding of what is important to farmers. As a local to Morrinsville for the last 25 years, Sue knows the people and area intimately, a huge advantage in her current role as Technical Sales Representative for the South Waikato area. Sue loves all animals, so enjoys getting to know her customers and working with them to ensure they have the best possible solutions for their herds health and performance. Read Less
Warren Tanner
Animal Nutrition TSR - Franklin, North West Waikato
Darryn McDonnell
Whanganui Operations Manager
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. Read Less
Grant Jackson
General Manager
Grant has a strong track record in the agri-sector with over 25 years in leadership roles with Miraka, LIC, BNZ and Summit Quinphos. Grant qualified with a Bachelor of Science (Biochemistry) from Lincoln University, and has undertaken post graduate studies across leadership and governance, including being a Kellogg Rural Leadership Scholar. Grant and his family reside in Taupo, where he is also a trustee on the local Economic Development Agency. Read Less
Matthew Johnstone
SealesWinslow Morrinsville Operations Manager
Paul Sharp
SealesWinslow Sci Extn NI Contractor
Paul has an extensive background in agricultural production systems consultancy and an in-depth experience in strategic development and practical implementation of dairy and ruminant farming systems. He has provided consultancy services both in New Zealand and internationally for Dairy Beef Solutionz Ltd, Nutrition Services Ltd, Ravensdown Co-operative, AgResearch Limited and Intelact Nutrition Limited, among others. Paul has a Bachelor of Agricultural Science with Honours, majoring in plant science and intensive dairy systems, and is a member of New Zealand Grasslands Association, New Zealand Society of Animal Production, New Zealand Association of Scientists and New Zealand Association of Ruminant Nutritionists. With strong expertise in dairy, beef, goat and sheep nutrition, Paul provides technical extension and training to the SealesWinslow team. Read Less
Ryan Scholes
National Sales Manager
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. Read Less
Simon Butler
Nutrition Extension Specialist
Simon has been with Seales Winslow since March 2022. After completing a Bachelor of Science at Massey University he worked on dairy farms for the last 4 and a half years in Palmerston North and Taupo. His passion is to apply his in depth understanding of animal physiology and production to help produce healthy happy and profitable dairy cows. In his personal time he is a keen hunter and trout fisherman, mountainbiker and snowboarder. Read Less
Steve Carr
Ashburton Operations Manager
Steve started with Seales Winslow September 2021. Steve has an accounting background and is a qualified Chartered Accountant. Prior to Seales Winslow Steve was the Plant Manager of a large French fry factory employing over 350 staff. Born and bred in Mid Canterbury, Steve is passionate about supporting farmers who are the driving force of the local economy. Read Less
Tyler Stuthridge
Head of Sourcing, Toll & New Product Development
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. Read Less