Our People
SealesWinslow has a team of experts covering the entire country.
Matthew Johnstone
SealesWinslow Morrinsville Operations Manager
SealesWinslow
Dairy Farming Nutritional Advice
SealesWinslow Morrinsville Operations Manager
Corporate Key Account Specialist
Grant is originally a South Island lad who obtained a Bachelor of Science in Agriculture & Forestry from Lincoln University. He then went on to spend the next 15 years of his working career supporting farmers in Canterbury and Top of the South via Ravensdown, Fonterra, FMG and ANZ, working with small mum and dad operations through to corporates.
For the past 5 years he has delved into wine, forestry and pest control leaving Vector Free Marlborough to return to his passion of working with farmers.
Grant now lives in Taupo with his wife (originally a Waikato girl so wanted to return home) and his other passions are his dog and his mountain bike.
With over 25 years of experience in operations and production within the Dairy industry, my journey began with Anchor, later Fonterra. The bulk of my career was dedicated to the Hautapu site in Cambridge, where I honed my skills and expertise.
In October 2023, I embarked on a new chapter as the Operations Manager at SealesWinslow’s Morrinsville site. Here, I continue to leverage my skills to drive operational excellence and foster a culture of collaboration and growth.
At the heart of my approach is a commitment to building strong teams. I firmly believe in the power of engagement and strive to create a workplace where every individual feels valued and supported, like part of a family.
Outside of work, my family and I call Cambridge home, where we cherish the community and the quality of life it offers.
Mike Harrison
Animal Nutrition TSR – North of the Rakaia River to Marlborough
Animal Nutrition TSR – North Canterbury
Peta Hamilton
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.
Lauren Otto
Merchant Technical Sales Representative – North Island
Lauren Otto
National Operations Manager
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.
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.
Regional Manager Southern
Animal Nutrition TSR – Franklin, North West Waikato
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.
Ryan Scholes
Regional Sales Manager Northern
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.
National Sales Manager
Richard started with Seales Winslow in June 2022 following nearly 4 years running the Sales Capability team at Ballance.
With a Bachelor of Mechanical Engineering from the University of Edinburgh and 13 years at ANZ, including 5 years in Commercial and Agri-banking Richard is passionate about customer experience and a winning team mentality driving valuable outcomes for our customers. He enjoys seeing our sales team succeed and helping their customers grow.
Renee Fa’atui
Regional Sales Manager – South Island
Renee Fa’atui is the South Island Regional Sales Manager and Corporate/Key Account Manager for SealesWinslow and has been with the team since August 2022. Originally from Wellington, Renee spent her earlier career in admin & event management and only entered the agriculture industry in 2014 when she worked for MyMilk (part of Fonterra) for over 4 years and then moved to Synlait Milk for 3 ½ years as an Area Manager and looking after milk procurement. Renee is passionate about giving back to the industry and has been involved with Dairy Women’s Network and Rural Support Trust. Outside of work, Renee enjoys her time with her amazing husband and two beautiful daughters and socialising with friends and family. She also has a passion for the watching sports, especially her beloved Hurricanes, All Blacks and is a true Holden supporter with the V8 Supercars.
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.
Technical and Quality Manager
Paul is the Technical (Nutrition) and Quality manager for SealesWinslow with over 20 years experience as a multi species animal nutritionist. He holds a M.Sc. specialising in animal nutrition and has held various roles in sales, quality and nutrition for various companies. Paul believes that by being open minded and understanding how the complexities of nutrition can be used to achieve an operations objectives, the optimal welfare, health and profitable solution can be derived.
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.
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.
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.
