Our People

SealesWinslow has a team of experts covering the entire country.

0800 287 325

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."

Regional Manager - Southern
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.

Business Intelligence Manager
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 leading our finance, nutrition and procurement teams. Her passion is directed to continuous improvement in business practices and the wellbeing of her staff.

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
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.