Our People

SealesWinslow has a team of experts covering the entire country.

0800 287 325

Nutrition & Quality Manager
Natalie Hughes

Senior 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.  

Animal Nutrition TSR - Eastern Bay of Plenty, Rotorua, Taupo
Mark Mellsop

Sales Team

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. 

SealesWinslow Sci Extn NI Contractor
Paul Sharp

Nutrition Team

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.

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.

Merchant TSR - Lower North Island
Danny Prodger

Sales Team

Danny has been involved in farming in some way for most of his life, from his nearly two decades hands on farming experience in both dairy and sheep & beef sectors to his time spent working for Open Country Dairy.  He has also spent several years selling lifestyle and residential real estate.

Danny has a Diploma in Farm Management which he completed while he was farming.

Danny advices farmers on the health and performance of their herd in the area ranging from Hawera to Napier, to Martinborugh and Otaki.

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.

Animal Nutrition TSR South Waikato
Sue Avison

Sales Team

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.

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.

Support Services Manager
Nardia Crosby

Senior Leadership Team

Prior to joining SealesWinslow in 2013 Nardia spent 12 years working in the United Kingdom with Banking, Communications and Research and Development customers as a Service Delivery Manager, ensuring that business processes and customer and IT services ran smoothly. Back in New Zealand, Nardia worked for a short time project managing scientific research work for a respected NZ forestry based research institution.

Nardia is passionate about continuous improvement and using technology effectively to develop processes that ensure swift and efficient service to customers while future proofing the support we can offer.

Commercial Manager
Bruce Harris

Senior 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.

Merchant TSR - South Island
Kimberley Wright

Sales Team

Kimberley joined SealesWinslow as a Technical Service Representative for the South Canterbury and Otago areas 4 1/2 years ago and recently moved into the South Island merchant role . Having spent nine years in the dairy industry and being born and raised in Canterbury, Kimberley brings a lot of experience of best farm practices for her region. 

Kimberley is passionate about animal health, even to the point of studying this very subject with Primary ITO along with husbandry and mating for the dairy industry.  Her passion, experience and knowledge were clearly demonstrated by winning apprentice of the year in 2013.

Farmers in her region will find that Kimberley is happy to discuss the needs of their herds and offer suggestions for improving health and performance.

Family and friends are an important part of Kimberley’s leisure time and will on occasion join Kimberley in her other passions, camping and hockey. 

Animal Nutrition TSR -Taranaki West
John Baldie

Sales Team

John joined SealesWinslow in May 2018 from share milker to farm owner, John has farmed in the UK, Australia and for over 20 years in New Zealand. John has a nutritional background from the UK and holds an advanced trade certificate in Farm Business Management.

He has an absolute passion for feeding all stock to meet their full potential. 
Now living in the heart of Taranaki on the coast and loving every minute of life.

Merchant TSR - Lower North Island
Mike Kemp

Sales Team

Mike has joined SealesWinslow as the merchant animal nutrition TSR for the central region.
Prior to this he has spent the last 12 year in the agriculture industry 7 of those travelling the country for Asure Quality mainly as Meat Inspector but also a part of the ‘on farm’ team, throughout that period Mike has seen the internal effects of poor health and nutrition first hand.

Mike has also worked at a merchant level in the dairy sector for the past 2 years so he is passionate about helping his customers achieve their store business goals with SealesWinslow.

Mike can be seen visiting stores from Wellington to New Plymouth and across to Gisborne.


Science Extension Officer- Animal Nutrition
SealesWinslow team - Vanessa Lilly
Vanessa Lilly

Nutrition Team

Vanessa joined SealesWinslow in March 2019 as a TSR for the northern BOP region, after having completed the Ballance Agri-Nutrients Sales Internship in the Eastern Bay of Plenty. In Feburary of 2022 she started as a Science Extension Specialist- Animal Nutrition. 
Vanessa grew up on a dairy farm in coastal Taranaki, and has a Masters in Animal Science from Massey University, Palmerston North, which focused on animal production, reproduction and lactation. Prior to joining Ballance Agri-Nutrients, Vanessa was involved in the thoroughbred racing industry, breaking in and pre-training young horses.
In her spare time, Vanessa enjoys the outdoors, a glass of wine and being involved in motorsport. 


Commercial Manager
SealesWinslow team - Rhiannon Kelsey
Rhiannon Kelsey

Senior 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.

National Sales Manager
Terry Harding
Terence Harding

Senior 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.

Merchant TSR - Northern
Kate Stewart

Sales Team

Kate worked as the Merchant Technical Sales Representative - Northern Region for Seales Winslow from 2014-17.  Kate has returned to the company in 2020 to resume this role after having a 3-year hiatus working in the car industry. 
Having owned a dairy farming business for 20 years, Kate has had plenty of experience in the cow shed and rearing calves. Kate is very passionate about rearing great heifers, as they are the future of the dairy industry. 
Kate works with merchant stores from Kaitaia in the north, to Taumarunui in the south, and all the way east to Opotiki.


Animal Nutrition TSR
SealesWinslow team - Penny
Penny Lavender

Sales Team

Penny joined SealesWinslow early in 2020 as our Nutrition & Quality specialist, based in the South Island.

Penny brings extensive experience to this role, dairy farming for 16 years, managing a vet clinic for 6 years, and another 6 years in nutrition for dairy, deer, sheep and beef. 

Her experience is backed up with qualifications: NZ Certificate in Animal Technology & NZ Certificate in Animal Care, Dairy Production Systems Course, and a Milk Map Course.

Penny is excited to use her experience and knowledge advising our TSR’s and provide on farm solutions to optimise stock health and productivity.

In her spare time, you will find Penny tramping with an aim of completing all of the ‘Great Walks’ in NZ.  Escaping the pressures of a busy lifestyle to enjoy and explore our beautiful country with her partner and family. Spending time enjoying children and grandchildren is hugely important as is travelling around NZ on their road bike while taking in the sites. 

Animal Nutrition TSR - West Coast, Nelson & Marlborough
Finance Manager
Kate van den Berg

Senior Leadership Team

After a number of financial roles in England, Kate migrated to NZ in 2007 and is both a Chartered Accountant and a Chartered Management Accountant. After 8 years working in a tertiary education provider and 5 years in the Electricity industry, Kate joined SealesWinslow in 2020.

Kate manages the finance team based in Morrinsville. Kate and her family love the country life in rural west Waikato and have plenty of animals to show for it.

Marketing Lead
Merchant & Customer Services Manager
Marlena Dance

Leadership Team

Marlena Dance started with the company in August 2020 & enjoys working with a dynamic team of Merchant & Customer Service Representatives.  Starting in her first leadership role in her early twenties, a strong retail and sales background saw growth into various different roles.

Roles such as Store Management, Training Management, Area Management, Regional Management, and these days as SealesWinslow’s Merchant & Customer Service Manager.  Mars (as we know her) has always had a passion for outstanding service & takes pride in seeing success through others. 

Marlena has attained a BSc (Bachelor of Science) through The University of Waikato in 2006.  Having studied and worked in Wellington, Auckland and Hamilton… Marlena returned home to the Sunny Bay of Plenty, and loves the ‘down to earth approach’ of our SealesWinslow colleagues and customers.

Customer Service Team Lead
Gemma Clark

Leadership Team

Merchant TSR - South Island
Mike Harrison

Sales Team

Mike started with Seales Winslow in November 2021. His qualifications include Intermediate Sustainable Nutrient Management and Farm Dairy Effluent System Design & Management both from Massey University. He has been a consulting effluent systems specialist in various roles in the North & South Islands, Rural Earthworks project manager, Regen/biological farming systems consultant and has significant BDM & marketing experience.

Mike brings with him a passion for profitable and sustainable farming. Outside of work he lives on a Canterbury lifestyle block, enjoy time on adventure and off road motorcycles and snowboarding in the winter.

SealesWinslow Business Manager
Matthew Ward

Senior Leadership Team

Animal Nutrition TSR - Franklin, North West Waikato
Simon Butler

Sales Team

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.

Animal Nutrition TSR
National Sales Manager
Richard McKean

Senior Leadership Team