Our Leaders
![](https://www.alltech.com/sites/default/files/styles/original/public/featured_header/images/Headshot-Alltech-Leadership-Dr-Pierce-Lyons.png?itok=dLH-HKg0)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Dr-Pearse-Lyons-280x375-rgb.png.jpg?itok=t45gKcz6)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Deirdre-Lyons-280x375.png.jpg?itok=ZOQdaRl9)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-08/Dr-Mark-Lyons-280x375.png.jpg?itok=BbkmOUYj)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Aoife-Lyons-280x375-rgb.png.jpg?itok=rCwwgWFt)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-08/Dr-Mark-Lyons-280x375.png.jpg?itok=BbkmOUYj)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Mike-Castle-280x375.png.jpg?itok=lEzf3ARX)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Alric-Blake-280x375.png.jpg?itok=pGHoPpXP)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Deirdre-Lyons-280x375.png.jpg?itok=ZOQdaRl9)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Patrick-Charlton-280x375.png.jpg?itok=qFuA54S4)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Marc-Larousse-280x375.png.jpg?itok=ftiVf-43)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Paulo-Rigolin-280x375.png.jpg?itok=SAqOdIKJ)
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
![Robert Walker](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Robert-Walker-280x375.png.jpg?itok=sm3_0Oig)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Jonathan-Forrest-Wilson-280x375.png.jpg?itok=pOFtv3Yl)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/nick-adams-280x375.jpg?itok=ROpp46u3)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Steve-Elliott-280x375.png.jpg?itok=pAFUA4M0)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Susanna-Elliott-280x375.png.jpg?itok=i3lQB_hw)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Dan-Haney-280x375.png.jpg?itok=c_5Utb50)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Brad-Harris-280x375.png.jpg?itok=GPvGipnK)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-08/Web%20JPG-Brian-Lawless_smaller.jpg?itok=WawlQcUU)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-08/Orla-McAleer-280x375.png.jpg?itok=9VV9YKUI)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Tara-McCarthy-280x375.png.jpg?itok=JiKRXWvr)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Dr-Kyle-McKinney-280x375.png.jpg?itok=ypMWJvM9)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Scott-Nielsen-280x375.png.jpg?itok=Z-UUmTru)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Dr-Ronan-Power-280x375.png.jpg?itok=mQoTY6eS)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Christina-Schull-280x375.png.jpg?itok=fznu-EmS)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Becky-Timmons-280x375.png.jpg?itok=_0u096sK)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Ronald-Faber-280x375.png.jpg?itok=twdjCxqB)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Andy-Thomas-280x375.png.jpg?itok=EAP2HPK2)
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](/sites/default/files/styles/at_family_large_3_4/public/2024-07/Matthew-Smith-280x375.png.jpg?itok=qvcV1ZAS)
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