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Our Leaders

Founding Lyons Family

Dr. Pearse Lyons

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

Deirdre Lyons

Co-Founder & Director of Corporate Image and Design

Deirdre Lyons was born in Dublin, Ireland, and graduated with a degree in hotel management from St. Mary’s College, University College Dublin, in 1970. In 1977, Deirdre moved to Kentucky with her husband, Dr. Pearse Lyons, and their two small childre… Read More

Dr. Mark Lyons

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 — from palletizing bags in… Read More

Dr. Aoife Lyons

Dr. Aoife Lyons

Director of Educational Initiatives and Engagement

Dr. Aoife Lyons received her doctorate in clinical psychology from DePaul University in 2001. After successfully running her own private practice clinic in Chicago for over 10 years, she returned to Ireland in 2012 to direct Alltech’s educational ini… Read More

Executive Leadership

Dr. Mark Lyons

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 — from palletizing bags in… Read More

Alric Blake

Alric Blake

Chief Operating Officer

As Chief Operating Officer, Alric Blake chairs the executive committee and is the highest ranking officer within Alltech outside of the founding Lyons family. Prior to his current role, he served four years as CEO as appointed by Alltech’s founder Dr… Read More

E. Michael Castle II

E. Michael Castle II

CEO of the Alltech Feed Division and North America Sales

E. Michael Castle II is the CEO of the Alltech Feed Division, which comprises several recently acquired companies that specialize in premixes, complete feeds, nutrition blocks, specialty products and technologies. Appointed to the position in May 20… Read More

Senior Leadership

Aidan Connolly

Aidan Connolly

Chief Innovation Officer & Vice President, Corporate Accounts

Aidan Connolly is Alltech’s chief innovation officer and vice president of corporate accounts. Responsible for the commercialization of Alltech’s global research in addition to the company’s corporate account strategy, his expertise is in branding, a… Read More

Patrick Charlton

Patrick Charlton

Vice President at Alltech; CEO of Coppens International

Patrick Charlton is vice president at Alltech and CEO of Coppens International, a specialist aquaculture feeds company, which was acquired by Alltech in 2016. Before joining Coppens International, Charlton oversaw the activity of 32 Alltech offices… Read More

Karl Dawson

Dr. Karl Dawson

Vice President and Chief Scientific Officer

Dr. Karl Dawson is the vice president and chief scientific officer at Alltech and directs activities at the company’s bioscience centers around the world, including Alltech’s Center for Animal Nutrigenomics and Applied Animal Nutrition, where he is t… Read More

Dan Haney

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

Nathan Hohman

Nathan Hohman

Vice President and Chief Financial Officer of the North America Feed Division

Nathan Hohman is vice president and chief financial officer of Alltech, specifically focused on the profitability of the company’s North America-based feed company acquisitions. Hohman has been involved with Alltech since its inception in 1980 and se… Read More

Dr. Marc Larousse

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

Orla McAleer

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

Ronan Power

Dr. Ronan Power

Vice President of Alltech Life Sciences

Dr. Ronan Power is vice president of Alltech’s life sciences division. Power received his bachelor’s degree in microbiology and his Ph.D. in biochemistry from the National University of Ireland. Afterward, he completed his postdoctoral training in ce… Read More

Nick Smit

Nick Smit

Vice President of Africa and the Middle East

Nick Smit grew up on a dairy and crop farm on the west coast of South Africa, and he attended Stellenbosch University in South Africa, from which he received his bachelor’s degree in agriculture, and the University of Guelph in Canada. Smit then went… Read More

Matthew Smith

Matthew Smith

Vice President of Asia-Pacific

Matthew Smith began his working career on a dairy farm in the United Kingdom before receiving a business law degree from Coventry University and the College of Law, Chester. Working in the feed industry for more than 25 years, 19 of which have been w… Read More

Becky Timmons

Becky Timmons

Global Director of Applications Research & Quality Assurance

Becky Timmons is the global director of applications research and quality assurance at Alltech. She ensures that all Alltech products meet the high standards demanded by the company through its Alltech® Quality System (AQS). AQS was established by Ti… Read More