Senior Leadership Team

CEO - Gavin Thwaites

CEO - Gavin Thwaites

Gavin has spent the previous 30 years working in various roles in New Zealand, the Middle East, Asia, and Europe.  He has worked across many industry sectors with the common theme of focusing on the customer to grow the business. 

Graduating from Lincoln College armed with a B.Ag.Sci degree, Gavin commenced his career with the NZ Dairy Board as a LIC Consulting Officer.  He then went on to work in the Saudi Arabian Dairy industry before stepping out of the Agribusiness sector and into IT Services and the Business Process Management sectors.   He is delighted to be back in the agribusiness sector, joining the DTS team in January 2019. 

On a personal note Gavin is happily married with two wonderful teenage children.  He is unashamedly a sports addict, however now much too old and slow to play rugby anymore.  Most of his leisure time nowadays is spent either on the water fishing or underneath it diving and wherever possible trying to escape into the mountains with a pack on his back.

Email Gavin Thwaites

0800 500 387


Commercial Manager - Deane Bellis

Commercial Manager - Deane Bellis

A chartered accountant with a Bachelor of Management Studies degree, Deane is a highly experienced and qualified finance professional with excellent experience across project and business budgeting, forecasting, strategic financial planning, commercial development and analysis.

A keen family man, DIY projects and spending time with his children and their dogs take up a lot of Deane's spare time these days.  After that it's coaching and playing hockey and following the cricket.

Email Deane Bellis


Normanby Manufacturing Site Manager - Paul Turner

Normanby Manufacturing Site Manager - Paul Turner

Paul gained his qualifications as an aeronautical engineer through the RNZAF and since then has also graduated with a BBS through Massey University – (Business Law and HR majors) as well as a Post Graduate diploma in Supply Chain Management.

Before bringing his extensive experience to DTS, Paul has held a number of senior production and operations management roles with leading engineering-based companies.

After hours Paul enjoys spending time with his two boys and is also a keen trail and ultra-marathon runner as well as having a great love for mountain biking.

Email Paul Turner

027 746 6372


On Farm Services Manager - Luke Walker

On Farm Services Manager - Luke Walker

Luke leads the DTS Operations team and has more than 15 years’ experience in the agricultural industry specialising in farm water system design, refrigeration systems, milking machines, and dairy farming systems in general.

For the last seven years, Luke has been in senior management roles looking after on farm refrigeration.

Based in our Hamilton support office, Luke’s spare time is well-spent with his family fishing, hunting, and enjoying rugby. 

Email Luke Walker

027 294 7802


Sales and Key Account Manager - Scott Wards

Sales and Key Account Manager - Scott Wards

Scott leads the DTS sales team with more than 20 years’ experience in sales and sales management. The last 15 years focused on the agriculture industry specialising in farm water system design, fence design, and dairy solutions.

Based between Tauranga and our Hamilton support office, Scott’s spare time is well-spent with his family fishing, diving, mountain biking.  He also has time for coaching club and regional representative rugby.

Email Scott Wards

021 615 760


Sales Team

Waikato Area Sales Manager - Dave Gray

Waikato Area Sales Manager - Dave Gray

As a qualified refrigeration engineer, Dave has more than 40 years’ experience servicing and selling refrigeration units. That experience includes nearly 30 years as a refrigeration service engineer in the dairy industry. So there isn’t much Dave doesn’t know about farmers’ refrigeration needs – or where to catch snapper in the Hauraki Gulf which is where you will find him on his days off!

Email Dave Gray

027 291 6041


Taranaki Area Sales Manager - Ben Lagan

Taranaki Area Sales Manager - Ben Lagan

Our Taranaki Area Sales Manager knows his turf well having been born and bred in the region. Ben joined DTS with 12 years’ sales experience and is based in our Normanby FHT manufacturing plant.

When Ben’s not on the road delivering quality products and services to Taranaki dairy farmers, he enjoys a beer with mates, following horse racing, a bit of fishing and (in his own works) “chasing a stupid white ball around very poorly on the golf course”!

Email Ben Lagan

027 471 3539


Lower North Island Area Sales Manager - Tim Rix

Lower North Island Area Sales Manager - Tim Rix

Tim’s dairy experience is very hands-on having been a sharemilker for a 400-cow Manawatu farm for eight years before joining DTS. Living in Palmerston North where he was born and raised, Tim looks after our customer’s right across the lower North Island from the Hawkes Bay across to Wanganui and down to Wellington. A keen family man with four grown children, Tim’s spare time is taken up with never-ending DIY projects around the home and catching up on sport.

Email Tim Rix

027 2933 403


Westland & Tasman Area Sales Manager - Jamie Boswell

Westland & Tasman Area Sales Manager - Jamie Boswell

Our man Jamie on the West Coast is a qualified refrigeration engineer with more than 24 years’ experience helping customers with their refrigeration needs on and off the farm. For the last 14 years we’ve been privileged to having Jamie on the DTS sales force looking after the unique needs of dairy farmers on the Coast.

Email Jamie Boswell

027 293 3405


Canterbury & Marlborough Area Sales Manager - Trevor Green

Canterbury & Marlborough Area Sales Manager - Trevor Green

Trevor gained a Dip Ag & Dip Farm Management from Lincoln Uni (back when it was just a College!). He’s always worked in the agricultural industry and that has given Trevor a good understanding of the broader Primary Industry in NZ. So he has a keen interest in all things farming, not just dairy!

Some of Trevor’s previous roles have included:

Livestock Exporting – mainly dairy & beef cattle to markets such as Japan, Indonesia, Malaysia, Mexico, Australia, Canada and the US: Milking Machinery OEM – South Island Sales Manager for global brand and selling cow, sheep and goat milking equipment including herd management and EID Systems. On top of that Trevor has been involved in dairy construction as a National Dairy Specialist selling cow barns, dairy sheds, rotary platforms and grain & meal feeding systems – as well as grain storage & handling and general farm machinery as well.

And Trevor is a farmer himself having lived in West Melton, near Christchurch, on a small farm for more than 20 years. Trevor has been involved in his local rugby and tennis clubs, as well as a spell on the local school board.

Email Trevor Green

021 534 373


Otago & Southland Area Sales Manager - David Sleeman

Otago & Southland Area Sales Manager - David Sleeman

Dave is a qualified refrigeration mechanic with more than 20  years’ experience installing, servicing and repairing refrigeration units. For more than a decade, Dave has focused on refrigeration for the dairy sector. Born and raised in Gore, Dave has returned to live in his home town after 10 years in Brisbane.  Married to Leisa with two boys, Mykel age 17 and Rueban aged 15, Dave is keen on camping, fishing and coaching rugby in his time off.

Email David Sleeman

027 291 6041


Northland Area Sales Manager - Arthur Harrison

Northland Area Sales Manager - Arthur Harrison

Born in the North – Married to Gaylene, they have three children and two grandchildren and currently live in the Kerikeri area.

Enjoys travel, bike riding, tramping and running. Family life.

I have spent my life working with or on a dairy farm – born and raised on a dairy farm.

After leaving school worked in the dairy co store (now Farm Source) spent 20 years working for them managing three stores.

In 1985 started working for a now DTSowned company selling Electric Fencing, Scales, EID equipment, Gates and still with them now – 2012 spent four years in the UK working for DTS.

So plenty of sales experience and lots to do with the dairy industry.

Email Arthur Harrison

021 822 970


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