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Semex Pty Ltd
10-12 Coburns Road
PO Box 509

Ph: 03 9743 0344
Fax: 03 9743 0355

Scroll down for key staff

Jim Conroy, Director

Ph (03) 9743 0344
Fax (03) 9743 0355
Mobile 0418 107 863

Jim Conroy has represented Semex in Australia for more than 30 years. In addition to managing the companys sales and administrative functions, Jim spends as much time in the field as possible, talking to breeders, herd improvement centres and resellers.

David mayo

David Mayo, Manager New Zealand

Mobile 0439 343 121

A well-known breeder and livestock judge, David is responsible for the companys sales and marketing activities in New Zealand.

Howard hodgetts

Joseph Holloway, Area Manager
Solutions & National Key Account Manager, Northern Victoria& Southern North West Victoria


Mobile 0400 950 046

Jo comes from a 400-cow family dairy operation and he has completed a degree in Agricultural Science in Wagga Wagga NSW.

Peter dickson

Peter Dickson, Area Manager
Area Manager Western Victoria & Tasmania


Mobile 0428 539 040

Peter has been a Guernsey breeder, exhibitor, judge and breed association delegate for the past 35 years. Based in Bacchus Marsh, Victoria, Peter has serviced Semex customers throughout Western Victoria, south-east South Australia and Tasmania since 1998.


Mitchell Clark, Area Manager
Far Western Victoria & South Eastern South Australia 


Mobile 0459 335 752

Mitch comes from a well-known dairy family at Nerrena in South Gippsland and has recently completed his Bachelor of Agricultural Science at La Trobe University Bundoora (Melbourne). Mitch will be servicing Far Western Victoria and South East South Australia. 

David Ninness, Area Manager
South Coast, Hunter, New England, Mid Nth Coast NSW, Darling Downs & Sunshine Coast Qld 


Mobile 0427 305 269

A well-known breeder and livestock judge, David services Semex customers and resellers throughout the Central West, Hunter Valley, New England and North Coast regions of NSW, as well as South-East Queensland. He is based in Maitland, NSW.

Karen Yarnold, Area Manager
Northern New South Wales and South East  & Far North Queensland

Mobile 0428 535 183

Based out of Wingham in New South Wales, Karen brings a wealth of hands-on commercial dairy farm experience, in addition to valuable registered cattle knowledge to her new role. Karen farmed pedigree Holsteins for many years, including showing cattle at the highest levels. She has also worked with Jerseys and Brown Swiss and she has knowledge of the beef industry.

Stuart Mackie , Area Manager
South Gippsland


Mobile 0438 640 221

Based in Meeniyan, Victoria, Stuart services Semex customers throughout Gippsland and the NSW South Coast. Stuart is also an evaluator with the Semex Promate mating program and a fitter/photographer fo the Semex Young Sire Program. He maintains a direct interest in breeding via his Holstein stud.

Alex walker

Alexandra Mathews, Area Manager
West & Central Gippsland & Far South Coast NSW


Mobile 0428 819 551

Alex services Semex customers and resellers throughout West and Central Gippsland and in addition the Bega region in NSW. Alex was born and raised in Canada and her family continues to run Walkerbrae Farms, a famous Holstein and Jersey herd, based in Guelph, Ontario.

Vaughn johnston

Vaughn Johnston, National Sales Manager
Area Manager South Australia, Western Australia


Mobile 0408 304 526

Vaughn services Semex customers and resellers throughout the Meningie and Murray Bridge regions along with Western Australia. 


Tyson Shea

Product and Operations Manager

Ph:  03 9743 0344

Mobile:  0431 303 853

Maria Dickson

Advertising  Manager


Moble:  0407 003 081

Ed Conroy

Warehouse & Distribution  -  econroy@semex.com.au

Faye Hughes

Orders & Invoicing  -  fayehughes@semex.com.au

Tracey Churchman

Accounts  -  tchurchman@semex.com.au