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Our Leaders

Founding Lyons Family

Dr. Pearse Lyons

Dr. Pearse Lyons

Alltech Founder

Aug. 3, 1944—March 8, 2018   In the late 1970s, Dr. Pearse Lyons immigrated to the United States with his young family — Deirdre, Aoife and Mark — and a dream. His vision — to sustain the planet and all things living on it by applying his yeast fer… Read More

Deirdre Lyons

Mrs. 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

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

Dr. Aoife Lyons

Aug. 1, 1973 — April 18, 2019

  Dr. Aoife Louise Lyons was known for her generous spirit and her continual drive to help others. As Alltech’s director of educational initiatives and engagement, she was instrumental in fostering educational opportunities both within Alltech and i… 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 — before even officially j… Read More

E. Michael Castle II

E. Michael Castle II

Chief Operations and Financial Officer

As chief operations and financial officer, E. Michael Castle brings integration to Alltech’s operational, finance and support teams globally, ensuring that they work in alignment and collaboration toward the company’s ambitious goals for growth and P… Read More

Alric Blake

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

Deirdre Lyons

Mrs. 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

Senior Leadership

Patrick Charlton

Patrick Charlton

Vice President of Europe

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

Dr. Marc Larousse

Vice President of the Middle East

Dr. Marc Larousse is the vice president of the Middle East for Alltech. He previously served as vice president of business development and was responsible for managing partnerships and merger and acquisition strategies for the company. He graduated f… Read More

Paulo Rigolin

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

Nick Smit

Nick Smit

Vice President of Africa

Nick Smit is vice president of Africa for Alltech. He 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 Un… Read More

Robert Walker

Robert Walker

European Growth Officer, Alltech; CEO, KEENAN

Robbie Walker is the European growth officer at Alltech. He also oversees key European markets for Alltech and serves as the CEO of KEENAN, which is part of the Alltech family of companies. Walker began his career by founding his own indoor farming… Read More

Jonathan Forrest Wilson photo

Jonathan Forrest Wilson

President of Asia-Pacific

Based in Beijing, China, Jonathan Forrest Wilson, president of Asia-Pacific, 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 a… Read More

Nick Adams

Nick Adams

Commercial Director, Technology Group

Nick Adams is commercial director of Alltech’s Technology Group, which is responsible for Alltech’s nutritional technologies, services and technical support. His team is focused on providing customers with the Alltech advantage, drawing upon company’… Read More

Steve Elliott

Steve Elliott

Global Vice President, Corporate Accounts and Pet

Steve Elliott serves as global vice president, corporate accounts and pet, at Alltech. Prior to this role, Elliott was Alltech’s global director of the mineral management and enzyme divisions. He has worked with Alltech for nearly 30 years. Elliott… Read More

Susanna Elliott

Susanna Elliott

Chief Marketing and Communications Officer

As chief marketing and communications officer, Susanna Elliott leads a 130-person global team to advance the company’s purpose of Working Together for a Planet of Plenty™. Through data, insights and relevant content creation, the team provides though… 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

Brad Harris

Brad Harris

Chief Legal Officer

Brad Harris is the chief legal officer of Alltech. He manages the company’s global legal function, which includes a total in-house staff of 15, 10 of whom are lawyers, and the oversight of over 200 law firms that provide counsel on company legal matt… Read More

Brian Lawless

Brian Lawless

Chief of Staff

Brian Lawless is the chief of staff at Alltech. He is active in the ag-tech industry, having completed the Pearse Lyons Accelerator and is currently supporting the Bluegrass Ag Tech Development Corp. Lawless possesses a wealth of knowledge related t… Read More

Orla McAleer

Orla McAleer

Chief Culture Officer

Orla McAleer is the chief culture officer at Alltech. In this role, she works to strengthen the company’s emphasis on its people and purpose. She has worked in the business for over 20 years, traveling extensively, building teams and close relationsh… Read More

Tara McCarthy bio image

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

Dr. Kyle McKinney

Dr. Kyle McKinney

Vice President of Innovation

Dr. Kyle McKinney serves as vice president of innovation at Alltech. In this role, he leads the company’s innovation strategy and guides Alltech’s efforts to accelerate promising new technologies and services that deliver science-backed breakthroughs… Read More

Scott L. Nielsen

Scott L. Nielsen

Chief Talent Officer

Scott Nielsen is a seasoned human resources executive with more than 30 years of experience helping companies increase growth through innovative organizational strategies and solutions. As chief talent officer at Alltech, Nielsen helps ensure strate… Read More

Dr. Ronan Power

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

Christina Schull

Christina Schull

Chief Information Officer

Christina Schull is chief information officer at Alltech. She has more than 20 years of experience in ag-tech and a vast knowledge of enterprise resource planning (ERP) implementation in the agriculture sector. She is passionate about leading a team… Read More

Becky Timmons

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

Ronald Faber

Ronald Faber

CEO, Alltech Coppens; Global Aqua Lead, Alltech

As Alltech’s global aqua lead and CEO of Alltech Coppens, Ronald Faber oversees all of Alltech’s aqua business. Faber leads a global team of aquaculture experts focused on fish nutrition, feed production, technical support and sustainable aquafeed s… Read More

Andy Thomas

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

matthew smith

Matthew Smith

Alltech E-CO2

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

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