Our Leaders

Dr. Pearse Lyons, an Irish biochemist and entrepreneur, founded Alltech in 1980 with the mission to improve the health and performance of people, animals and plants through natural nutrition and scientific innovation.
Founding Lyons Family

Dr. Pearse Lyons
Founder
Dr. Pearse Lyons, the Irish entrepreneur whose vision for improving global agriculture built a multibillion-dollar international business, died March 8, 2018.

Deirdre Lyons
Co-Founder & Director of Corporate Image, Design and Construction
Deirdre Lyons was born in Dublin, Ireland, graduating from University College Dublin in 1970. In 1977, Deirdre moved to Kentucky with her husband, Dr. Pearse Lyons, and their two small children, Aoife and Mark. Aoife held a Ph.D. in clinical psycholo… Read More

Dr. Mark Lyons
President and CEO
Dr. Mark Lyons grew up in the Alltech business, having traveled with his father and Alltech’s founder, Dr. Pearse Lyons, from a young age to visit customers. With experience working in all regions and nearly all departments — before even officially j… Read More

Dr. Aoife Lyons
It is with great sadness that the Lyons family and Alltech announce the passing of Dr. Aoife Louise Lyons on April 18, 2019. Aoife was known for her generous spirit and her continual drive to help others. As Alltech’s director of educational ini… Read More
Executive Leadership

Dr. Mark Lyons
President and CEO
Dr. Mark Lyons grew up in the Alltech business, having traveled with his father and Alltech’s founder, Dr. Pearse Lyons, from a young age to visit customers. With experience working in all regions and nearly all departments — before even officially j… Read More

Alric Blake
Vice Chairman
As vice chairman of Alltech, Alric Blake chairs the executive committee. Prior to his current role, he served as chief operating officer and also spent four years as CEO, appointed by Alltech’s founder, Dr. Pearse Lyons. In this capacity, he was the… Read More

E. Michael Castle II
Chief Operating Officer
As chief operating officer, E. Michael Castle brings integration to Alltech’s operational and support teams globally, ensuring that they work in alignment and collaboration toward the company’s ambitious goals for growth and Planet of Plenty™ vision.… Read More

Christopher Speight
Chief Financial Officer
Christopher Speight serves as chief financial officer at Alltech and heads the company’s global corporate finance, treasury management and M&A functions. He began working with Alltech on its M&A strategy in 2010 while at Bank of America Merr… Read More
Senior Leadership

Andrew (Andy) Thomas
CEO of Alltech Crop Science
As CEO of Alltech Crop Science, Andrew (Andy) Thomas leads a global team that is committed to helping crops reach their full potential, sustainably. With more than 30 years of experience in the agri-food and crop production industries, he combines bu… Read More

Dr. Ronan Power
Vice President and Chief Scientific Officer
Dr. Ronan Power is vice president and chief scientific officer at Alltech. Since 2002, Power has been based at the Alltech Center for Animal Nutrigenomics and Applied Animal Nutrition in Nicholasville, Kentucky, USA. He maintains a broad range of res… Read More

Becky Timmons
Chief Product Officer
Becky Timmons is chief product officer at Alltech, focusing on product development, formulation and quality assurance. She ensures that all Alltech products meet the high standards demanded by the company through its Alltech® Quality System (AQS). AQ… Read More

Dan Haney
Vice President of Operations
As vice president of operations, Dan Haney oversees Alltech’s operations globally, including management of Alltech’s manufacturing and/or sales distribution in more than 120 countries. With more than 30 years of fermentation and operations experience… Read More

Tara McCarthy
Global Vice President of ESG
Tara McCarthy is global vice president of ESG at Alltech and supports the company’s advancement of its vision of Working Together for a Planet of Plenty™, which focuses on three key pillars of planetary well-being — economic, environmental and social… Read More

Jonathan Forrest Wilson
President of Asia
Based in Beijing, China, Jonathan Forrest Wilson, president of Asia, is responsible for leading Alltech’s strategy within the world’s largest feed market. With more than 25 years of experience living and working throughout the Asia-Pacific and Ocean… Read More

Patrick Charlton
Vice President of Europe at Alltech
Patrick Charlton is vice president of Europe at Alltech, overseeing all of the company's European business. Previously, he was CEO of Alltech Coppens, a specialist aquaculture feeds company, which was acquired by Alltech in 2016. Over the 30 years h… Read More

Dr. Marc Larousse
Vice President of Business Development
Dr. Marc Larousse is the vice president of business development at Alltech and manages partnerships and merger and acquisition strategies for the company. He graduated from the National Veterinary School of Maisons-Alfort and later received his maste… Read More

Paulo Rigolin
Vice President of Latin America
Paulo Rigolin is vice president of Latin America at Alltech. Most recently, he was the strategy director for Latin America, a position he held since his relocation to Brazil in 2017, where he worked intensely on the integration of Guabi into the glob… Read More

Matthew Smith
Vice President
Matthew Smith served as Alltech’s vice president of Asia-Pacific from 2011–2019. Working in the feed industry for more than 27 years — 22 of which have been with Alltech — Smith has traveled extensively in Asia, Europe and North America. Smith relo… Read More

Orla McAleer
Chief Marketing Officer
Orla McAleer is chief marketing officer at Alltech and is responsible for overseeing the company’s global marketing efforts across its more than 120 markets. She also oversees the company’s marketing activities, including brand building, corporate an… Read More