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Alltech President and Founder Pearse Lyons Dies at 73

The world of agriculture lost a true visionary with the passing of Dr. Pearse Lyons, Alltech founder and president, on Thursday, March 8. Lyons died due to an acute lung condition that developed during his recovery from heart surgery. He was 73.

“The thoughts of our entire Alltech family around the world are with Dr. Lyons’ family, specifically his wife, Deirdre, daughter Aoife, son Mark, and Mark’s wife, Holly,” says Alric Blake, CEO and treasurer of Alltech. 

Beginning with his innovative application of yeast technology in animal nutrition, Dr. Lyons was a visionary entrepreneur who transformed the agriculture industry.

“From farm to field, from market to family dinner table, our world is immeasurably better because he was a man who never saw problems, only a challenge that had not yet been solved,” says Blake. “He inspired everyone he met with his energy, enthusiasm, and passionate belief in possibilities. He instilled that positivity in his people, more than 5,000 Alltech team members around the world. I am confident I speak on behalf of all of them when I say that we are deeply honored to have known and worked for such a great man. We will resolve to honor his legacy by deepening our commitment to his customers and all the innovative ideas he believed in so strongly.”

To continue driving forward his vision for serving the agriculture industry through field-proven innovations, Lyons established a clear leadership structure:

  • Mark Pearse Lyons, Chairman and President
  • Alric A. Blake, Chief Executive Officer and Treasurer
  • E. Michael Castle II, Vice President and Secretary

As the company director of corporate image and design, his wife will continue to further Lyons’ vision for Alltech’s global presence and their shared commitment to philanthropy and community involvement.

 “We are all deeply saddened by my father’s passing,” says Dr. Mark Lyons, Pearse’s son and chairman and president of Alltech. “He always focused on developing people, and he built an extraordinary team over the years. I know he had full confidence in his team to continue growing the company he built. He saw further into the horizon than anyone in the industry, and we, as his team, are committed to delivering on the future he envisioned. He planted seeds that will produce a bountiful harvest for the world in the years to come.”

Pearse Lyons’s family members are deeply appreciative of the many prayers and well wishes they have received from friends around the world. At this time, they kindly ask that any expressions of sympathy, including memories and tributes, be shared at

In lieu of flowers, the family is encouraging donations to the Alltech ACE Foundation, a 501c3 nonprofit organization that funds a variety of philanthropic endeavours around the world from disaster relief to primary schools in Haiti. Donations may be made at

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