Our Team

Breeding Advisor Province Counties Covered Contact Details
 Billy Deane Munster Cork, Limerick, Waterford  087 9577786
 George Gleasure Munster  Cork  087 6819535
 Jason Helen Munster  Cork, Limerick  087 3466911
 Donal Leahy Munster  Kerry  087 2125393
 Chris Mullally Munster Tipperary, Waterford  086 3363717
 Ronan O'Siochru Munster Kerry, Limerick, Clare  086 4077606
 Colin Stephenson Munster Tipperary, Waterford  087 9953301
 Edwin Bennet Connaught Leitirm  087 6353237
 Ronan O'Siochru Connaught Galway  086 4077606
 Micheal Phillips Connaught Sligo, Roscommon  087 2862285
 Rory Timlin Connaught Galway, Mayo  087 6903982
 Edwin Bennett Ulster Donegal, Monaghan, Cavan  087 6353237
 Des Dunlevy Ulster Donegal, Monaghan  087 6846951
 Edwin Bennett Leinster Longford 087 6353237
 Des Dunlevy Leinster Louth, Dublin, Meath 087 6846951
 Chris Mullally Leinster Kildare. Westmeath, Laois, Offaly 086 3363717
 Colin Stephenson Leinster Wicklow, Carlow, Kilkenny, Wexford 087 9953301




Who We Are

World Wide Sires (WWS) was founded in 1971 by Bill Clark, California dairyman and breeder of Cal-Clark Board Chairman (sire of Blackstar). Mr. Clark’s passion for cows and international people grew into a global business that has become a household name for farmers around the world.

In 2001, WWS was purchased by American A.I. cooperatives, Select Sires and Accelerated Genetics. The two organizations joined forces after 16 years of working with WWS to deliver industry-leading genetics to over 80 countries worldwide. Select Sires and Accelerated Genetics became a unified cooperative, with 30,000 farmer owners, in 2017. WWS continues to serve as the international marketing arm for their superior dairy and beef genetics.

The same passion for cows and people that created WWS is what drives the business today, connecting the World Wide Sires family of distributors, sales teams and valued customers.

What We Do

WWS offers customers an unparalleled line-up with bulls excelling in TPI, Production, Management Traits, Fertility and Type. We place emphasis on quality and quantity, as we offer a large selection of bulls that are consistently rising to the top.

The world’s best product also comes with the world’s best service. Our customers and their success are our highest priority.

Get in Touch with Us

World Wide Sires Ireland, Ltd.
605 Harbour Point Business Park,
Little Island,

Phone : 021 2349691
Email : [email protected]