At Volac, we understand the complexities and challenges faced by the agricultural industry. That's why we've assembled a team of experts who are not only well-versed in the latest advancements in feed additives but are also equipped with the practical know-how to tailor solutions to your unique needs.

Our experts are here to guide you through our product range, provide tailored recommendations, and help you support livestock health and maximise productivity.

US Team

  • Bryan Miller photo

    Bryan Miller

    US Commercial Manager

    Location: Warrenton, MO
    636.297.5325
    Bryan.miller@volac.com

    Bryan joined Volac in February 2022 as the Technical Business Manager in North America. In this role he provides sales support to our area managers as well as providing a technical resource to the company in general.

    Bryan brings with him 35 years of work in the commercial feed industry, most of it in the development and marketing of feed additives. Although he has worked with multiple species, he has used his background as a ruminant nutritionist for the development and marketing of rumen bypass nutrients and is the inventor of record on several US patents. Bryan has previously managed a microbial division of a US feed additives company as well as provided technical services in the use of mycotoxin mitigation products and phytogenic feed additives.

    In Bryan's personal life he is also involved with animal activities as a breeder of Thoroughbred and Oldenburg horses as well as being an active exhibitor of purebred dogs.

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  • Michael (Shane) Brenan photo

    Michael (Shane) Brenan

    Commercial Manager Volac South America

    Location: Houston, TX
    509.299.0022
    Shane.Brenan@volac.com

    Marketing Service Provider to Volac Wilmar Feed Ingredients and Business Unit Manager for Dry Palm Fats USA & South America. Shane joined Volac in 2020 focused on VWFI Feed Fats for the USA and South America as well as Forage Inoculants for the South American market.

    Prior to joining Volac 2020 Shane was an independent consultant working in Feed Ingredients like fishmeal and fish oil as well as developing specialty products and fertilizers for ag production.

    Throughout Shane's career he was focused on international trading with Omega Protein, Inc and Con Agra Foods working in all aspects of animal and crop production. This included a 6 year stint living in Mexico as General Director of United Ag Products', a Con Agra Company, distribution business UAP Mexico S.A de C.V. and president of Mid Valley Chemicals in Texas.

    Shane graduated from Texas A & M University in College Station, TX with a degree in Animal and Range Science and a minor in Ag Business.

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  • Jim Zimmerman photo

    Jim Zimmerman

    Key Account Manager - Upper Mid-West

    Location: Chippewa Falls, WI
    608.697.3417
    Jim.zimmerman@volac.com

    Jim and his wife Renee owned and operated a dairy farm and construction business on the side, in Northwest Wisconsin for 24 plus years. They sold their farm in 2000 moving to the Baraboo, WI area. Jim sold passenger and agricultural tires for Progressive Tire Co. and joined Micron Bio Systems in 2006 as the Upper Midwest Regional Sales Manager relocating back to the Chippewa Falls WI area in 2018. When Volac Inc acquired Micron Bio Systems in 2021 Jim officially became an employee of Volac Int.

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  • Stuart Norman photo

    Stuart Norman

    Key Account Manager – Southeast/Mid-West

    Location: Gulfport, MS
    228.234.8751
    Stuart.norman@volac.com

    Stuart joined Volac as part of the 2021 acquisition of Micron Bio-Systems as an Account Manager on the Sales Team since 2012, as well as prior service with the company from 2002 to 2007. He works with distributors and farmers across 22 states assisting them in finding solutions to their forage preservation, feed quality and animal health needs and challenges.

    Stuart's prior experience includes byproduct and commodity sales and a decade of food manufacturing experience in quality assurance and specification compliance roles. He graduated from Berry College with a Bachelor of Science degree in Animal Science and Business.

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    Haley Huffard

    Key Account Manager – Northeast/Mid-Atlantic​

    Location: Roanoke, VA
    276.724.0010
    haley.huffard@volac.com

    Raised on a 4th generation dairy farm in Southwest Virginia, Haley brings a deep appreciation for dairy farming as well as a commitment to supporting producers in achieving their goals. ​

    Haley joined the team in 2024 as a Key Account Manager, where she works alongside customers across the Northeast and Mid-Atlantic.

    Prior to joining Volac, Haley spent five years working in the calf nutrition business, partnering with producers nationwide to improve calf health and performance by providing tailored nutrition and management solutions. ​

    Haley earned both a B.S. in Food Science & Technology and M.S. in Dairy Science from Virginia Tech, where her graduate research investigated the relationships between dam and calf microbiomes, with the goal of understanding how microbial communities shape the health, growth, and lifelong performance of dairy calves.

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    Tim Osborne

    Key Account Manager – Upper Midwest

    Location: Ohio, OH
    tim.osborn@volac.com ​

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    Lucas Krueger

    US Technical Service Manager

    Location: Eastern Iowa, IA
    Covering: US
    559-623-6631
    lucas.krueger@volac.com

    Lucas joined Volac in April 2026 as Technical Services Manager for the United States. His efforts are aimed at advancing technical developments for the company and serving as a resource to the US team. ​

    Lucas has served as a dairy nutritionist in multiple capacities, always in acts of service. He formerly worked as a research nutritionist and then managed the research & development team for a livestock nutritional products company. He has contributed to and led nutritional concept development, probiotic discovery, and in-feed application, and is named as an inventor on 5 US patents. Prior to joining Volac, Lucas consulted directly for dairy producers as an independent nutritionist in the central US. ​

    At home, Lucas and his wife are raising their children on a small Iowa farmstead and are active volunteers in their church, to build the same values of service and contribution in their family and community.

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  • Rob Furmage photo

    Rob Furmage

    Scientific Services Manager

    Location: England
    Covering: Global
    +44 7773 667903​
    Rob.Furmage@volac.com

  • Mike Rogers photo

    Mike Rogers

    Commercial Manager – Europe & ROW

    Location: England
    Covering: Global
    +44 7778 811757​
    mike.rogers@volac.com

    Mike brings over 30 years of commercial experience within Volac, having been closely involved in the global sales and development of its product portfolio.​

    ​In his current role, Mike works across multiple functions within the business, ensuring that Volac’s resources are aligned to deliver the highest level of value and sales support to key customers worldwide. ​

    Mike’s connection to agriculture stems from his family background, with both of his parents raised on small holdings in West Wales. This early exposure has shaped his understanding of the livestock industry and continues to underpin his practical, customer-focused approach.

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  • Dr. Hsueh-lui Ho Image

    Dr. Hsueh-lui Ho

    Global Technical Manager – Feed Additives

    Location: England
    Covering: Global
    +44 7773 667868​
    Hsueh-Lui.Ho@volac.com

  • Megan Smith

    Megan Smith

    Global Product Manager – Feed Additives

    Location: Wales
    Covering: Global
    +44 7989 658581​
    megan.smith@volac.com

    Megan is Global Product Manager for Feed Additives at Volac, supporting product strategy and commercial development across global markets.​

    ​She joined Volac from Lely, where she worked across product and commercial teams to support new technology introduction in dairy systems. Megan brings strong product-focused experience, working closely with sales, technical and operational teams to deliver practical solutions for livestock producers.​

    Having grown up on a dairy farm, she combines industry knowledge with a clear understanding of on-farm needs.

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    Andrew Thompson​

    Managing Director - Feed and Forage Additives​

    Location: England​
    Covering: Global​
    +44 7850 852293​
    andrew.thompson@volac.com​

    Andrew studied Agriculture at Newcastle University, before completing an MBA at Bath University. Having worked for Promar International for 15 years as a consultant, the last 3 years managing the business. He has been involved with a diverse range of client work including working with individual farms to grow and support performance, to supply chain initiatives such as helping to establish the Tesco dairy cost of production initiative.​

    Following a period working from Shanghai, helping to develop a strategic plan for Asia, for the last 12 years Andrew has led Genus's work in the bovine sector across Europe, the Middle East and Africa. He has led a team helping to bring together cutting-edge science with the wants and needs of dairy and beef producers across the region. With a relentless focus on customer and needs and delivering results for all, Andrew is passionate about driving on farm performance and sustainability, achieved by developing people and teams.

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