Rumin8 started as a simple
but audacious idea:

reengineer nature’s anti-methanogenic solutions into scalable, affordable, and efficient supplements for ruminants.

Progressing from concept to reality

Rumin8 invests heavily in product development and research to further build and extend the database of scientific validation of our product range.

With the newly opened demonstration production plant highlighting the scalability of our solution, we are expanding our presence across the globe.

Board and founders

Matt Callahan

Co-founder & Counsel

Matt Callahan

Co-founder & Counsel

 

Matt is an experienced life sciences and health tech executive based in Philadelphia, USA. He has been the founding CEO or founding Executive Director of several companies including iCeutica Inc (sold to private equity), Churchill Pharmaceuticals Inc (sold to Sun Pharmaceuticals), Dimerix Biosciences Ltd (ASX:DMX), Respirion Pharmaceuticals Pty Ltd, Botanix Pharmaceuticals Ltd (ASX:BOT), Emyria Ltd (ASX:EMD) and Orthocell Ltd (ASX:OCC). He has raised more than $200M in private and public capital for his companies and has advised on numerous fund raisings, mergers and acquisitions and other asset transactions.

He has led the development of five products that have received FDA approval and been successfully launched in the US and international markets, and has more than 25 years legal, IP and investment management experience. Mr Callahan has worked as an investment director for two venture capital firms investing in life sciences, technology and other sectors, and was the general manager of Australian listed technology and licensing company that created Nearmap (ASX:NMP).

Elaine Darby

Co-founder & Director

Elaine Darby

Co-founder & Director

 

Elaine brings to Rumin8 her diverse experience in science, communications and law. Her previous roles included a lawyer with top tier corporate law firm Clayton Utz, Media and Communications Officer for an Australian Federal Member of Parliament and Managing Director and Senior Winemaker of Aquila Estate Winery. She was an award winning wine-maker and was also involved in international business development and marketing in Singapore, Japan, Canada, the United Kingdom and the United States.

More recently, Elaine was an investment director of Biologica Ventures Pty Ltd and founding CEO of cannabinoid pharmaceutical company AusCann Group Ltd (ASX:AC8). She currently serves as Director of Goldwood Investments and Managing Director of Aquila Black Limited, a technology company developing innovative solutions for the food and beverage sector.

Elaine has overseen the development of various novel IP delivery systems of volatile plant derived compounds for stable, scalable pharmaceutical, food and beverage products.

David Messina

Co-founder & CEO

David Messina

Co-founder & CEO

 

David is a successful international executive with proven entrepreneurial skills and track record in developing and managing businesses in agriculture, energy and biotech, holding positions at the board and in executive management with both start-ups and mature businesses.

Previously, David was the CEO of Seed Grain Biotechnology Australia, Planttech Pty Ltd, Central EU Biofuels Ltd, Hutton Energy and most recently Whitebark Energy. He is currently the Chairman of Cadogan Estates Australia, owner of large farming properties in WA.

David was born and raised on a family farm in WA and has an excellent understanding of both the challenges and opportunities facing Australian farmers and producers. David is uniquely placed to realise the commercial development of the Rumin8 technology.

Dr Cameron Scadding

Co-founder

Cameron Scadding

Co-founder

 

Cameron is a forensic and analytical chemist, and a globally recognised and respected expert in his discipline with extensive complex forensic investigation experience.

Cameron has specific experience and expertise in supply chain integrity, security and managing supply chain risks and is regularly invited to speak on trends in supply chain integrity, specifically around agri-food, food supply chain transparency, trust, traceability and provenance. This skill set has made Cameron a sort after contributor to global policy discussions around the importance of resilient supply chains in sectors such as food, agriculture, pharmaceutical critical and strategic minerals.

Cameron has developed a range of food and pharmaceutical products. These include a number of new to world solid dose form pharmaceuticals and a range of functional foods and beverages. In addition to Cameron being the principal scientist and developer of these new to world products he has also supported his clients with market entry and the development of a trusted and high integrity supply chain.

Cameron is the founder and current Managing Director of Australian based science and technology business Source Certain (SC). SC operates a forensic, analytical and research and development laboratory in Perth, Western Australia.

Dr Stewart Washer

Co-founder & Chairman

Dr Stewart Washer

Co-founder & Chairman

 

Stewart has 25 years of CEO and ASX Board experience in medical technology and biotech companies. He is currently the Chairman of Emyria Ltd (ASX:EMD), a real world evidence and digital health company with Australian Clinics, Chairman of Orthocell Ltd (ASX:OCC), a regenerative medicine company dedicated to providing innovative treatments for people suffering from nerve and tendon injuries with products approved in Australia, Europe and US, Founding Chairman and current Director of Cynata Therapeutics Ltd (ASX:CYP) who are developing stem cell therapies in Australia and the UK. He was also a Co-Founder of Zelira Therapeutics Ltd (ASX:ZLD) who are developing medical cannabis products.

Stewart was previously the CEO of Calzada Ltd (ASX:PNV), the founding CEO of Phylogica Ltd (ASX:PYC) and before this, he was CEO of Celentis and managed the commercialisation of research from AgResearch in New Zealand with 650 Scientists and $130m revenues. This included a number of nutraceutical products. He was also a founder of a NZ$120m New Zealand based life science fund and Venture Partner with the Swiss based Inventages Nestlé Fund. He was an Investment Director with Bioscience Managers.

Stewart has held a number of Board positions in the past including Founding Chairman of Hatchtech Pty Ltd that sold in 2015 for A$279m, Director of iCeutica Pty Ltd that sold for over $60m to a US Pharma and a Director of AusBiotech Ltd, the Federal industry body. He was also a Senator with Murdoch University.

Mark Cupta

Director

Mark Cupta

Director

 

Mark joined Prelude in 2013 to have a positive impact on the reversal of climate change. He invests in entrepreneurs applying emerging technologies to established industries that use a significant amount of our energy or physical resources.

Mark received a BS and MS in Chemical & Bio-molecular Engineering from Georgia Tech, and an MBA from the Stanford Graduate School of Business. He has authored patents and publications in a wide variety of technologies focused on materials science in the fields of microelectronics, engineered polymers, advanced cements, barrier coatings, pharmaceutical delivery systems, and pulp & paper additives. He currently sits on the Board of Directors for Arable, Boston Metal, Citrine Informatics, Holo, Mori, Quaise, Rumin8, and Zapata Computing, and he has oversight for Prelude’s investments in Atom Computing, Fortify, Meati, Pivot Bio, polySpectra, Unspun, and Xcimer.

Prior to joining Prelude, Mark worked with the Celanese Corporation, a Fortune 500 company specializing in advanced materials and chemicals. Mark held a number of technical roles in new product development, application development, and process design, as well as commercial roles in technical marketing and business development. He also spent time with Terawatt Ventures, the solar investment team at Chevron Technology Ventures, and with sustainable chemistry start-up Novomer.

Samantha Tough

Independent Director

Samantha Tough

Independent Director

 

Samantha has a broad and varied career in many sectors including energy, resources, engineering and agriculture. She also has a 20 plus year career serving on boards.

Samantha is Pro Vice-Chancellor Industry and Commercial at the University of Western Australia and currently serves as Chair of Horizon Power, Director Clean Energy Finance Corporation and Director Aurizon Ltd.

Samantha’s previous directorships include Saracen Mineral Holdings Ltd, Synergy, CBH, Retail Energy Market Company Ltd, Structerre Pty Ltd, Cape plc, Aerison Pty Ltd, Murchison Metals Ltd, Southern Cross Goldfields Ltd, Strike Resources Ltd, WA Academy of Performing Arts. Samantha’s executive roles include General Manager North West Shelf Woodside Energy Ltd, Director Strategy of Hardman Resources Ltd, Senior Vice President Natural Resources Commonwealth Bank and Director of the Pilbara Power Project.

Samantha completed a Bachelor of Laws and Bachelor of Jurisprudence at UWA and worked as a barrister and solicitor before progressing to the commercial sector. She is a Fellow of the Australian Institute of Company Directors.

Peter Turner

Observer

Dr Peter Turner

Observer

 

Peter was raised in a small Minnesota farming community and has dedicated his career to the study of building more sustainable agricultural systems while empowering farmers to become part of the climate solution.

Before joining BEV, Peter was a Postdoctoral Scholar at the Carnegie Institution for Science at Stanford University where he researched the role of carbon dioxide removal technologies in the Paris Agreement as well as the use of agricultural offsets in the State of California’s recent CO2 cap and trade program.

Peter completed his PhD in Land and Atmospheric Science at the University of Minnesota where he improved the United Nations’ agricultural GHG emission budget and identified ways for farmers to cost-effectively mitigate nitrous oxide emissions. He previously served as a scientist for the Agricultural Research Service, the USDA’s in-house research agency, and completed a B.S. in Environmental Science from the University of Minnesota. His work has been published in outlets including PNAS and the BBC.

Team

Dr Martin Auldist

Animal Scientist

Dr Martin Auldist

Animal Scientist

 

Martin graduated from Latrobe University in Melbourne, Australia, in 1988 with a Bachelors degree in Agricultural Science (with Honours). He subsequently was awarded a PhD from the same institution in 1995 for his research into on-farm factors affecting the composition and suitability of milk for manufacturing.

Since then, Martin has amassed a further 25 years experience in applied dairy research, leading or overseeing dozens of experiments focusing on dairy cattle physiology and nutrition, and dairy farm management systems. He worked mostly as a Senior Research Scientist with the State Government at Ellinbank in Victoria, Australia, but has international experience having spent seven years at a dairy research centre in Hamilton, New Zealand (DairyNZ), and a further six months at Fermoy, Ireland (Teagasc Moorepark).

He has authored or co-authored 108 peer-reviewed papers in scientific journals (source: Scopus), two book chapters and many conference papers. Martin has supervised seven PhD students, a Masters student and two Honours students, and has in the last decade been appointed Honorary Principal Fellow at the University of Melbourne with the title of Associate Professor.

Dr Pablo Alvarez Hess

Senior Scientist

Dr Pablo Alvarez Hess

Senior Scientist

Pablo is a veterinarian and a scientist with experience in livestock systems and research, through work in large animal practice, aquaculture, teaching university undergraduates and government research.

Pablo’s research has been focused on evaluating strategies for decreasing enteric methane emissions from ruminants. He has worked with a range of feed additives and dietary strategies and is experienced in the SF6 technique, respiration chambers, in vitro systems, green feeds and life cycle analysis. He holds an honorary research fellow position at the University of Melbourne, where he supervises master and PhD students and lectures on greenhouse gas emissions from livestock systems.

Most recently, Pablo was a Senior Research Scientist with Agriculture Victoria leading the methane mitigation research.

Pablo holds a degree in Veterinary Medicine from Universidad Austral de Chile, a Master of Animal Science and a PhD in Agricultural Science, both from the University of Melbourne. He currently lives in Melbourne, Australia with his wife and daughter.

Jane Bown

Executive Assistant

Jane Bown

Executive Assistant

 

Jane has had an extensive career as an Executive Assistant and Office Manager, predominately for ASX listed companies in the mining and resources sector.

In Jane’s role as an Executive Assistant, she has assisted senior executives, Company Secretaries and Directors, in preparing and proofing company reports, lodging reports and releases with the ASX, and assisting on Board related activities, shareholder meetings and conferences.

With a company’s image paramount, Jane always ensures that interaction with shareholders is respectful and that the content of all public releases is professionally presented and is an accurate representation of the company’s activities.

Amanda Deighton

Accountant

Amanda Deighton

Management Accountant

 

With over 20 years of experience in commercial accounting roles, Amanda’s expertise covers a variety of accounting tasks and a strong working knowledge of ERP software systems. Amanda’s past exposure spans many processes and varied industries, including rural, travel, education and most recently in exploration and mining.

Amanda efficiently manages daily operations, with an eye for detail that allows her to develop methodologies that simplify processes and improve workflow. She is strongly focused on providing good customer service and working cross-functionally with other departments for effective operations and reporting.

Amanda holds a Bachelor of Business degree from Edith Cowan University. Prior to joining Rumin8, she enjoyed a long service leave break after 13 years with Gold Road Resources.

Kevin Hart

Company Secretary

Kevin Hart

Company Secretary

Kevin is a Chartered Accountant with more than 35 years’ experience in the accounting, management, and administration of publicly listed and private entities.

He is currently a Director of Endeavour Corporate, a corporate advisory firm which specializes in the provision of the company secretarial, accounting, and administrative services to ASX listed and private entities.

Kevin holds a Bachelor of Commerce Degree in Accounting and Business Management from the University of Western Australia and is a Fellow of the Institute of Chartered Accountants in Australia.

Mark Heath

Chief Operating Officer

Mark Heath

Chief Operating Officer

Mark Heath is an accomplished startup executive with a history of leading high-growth and high-scale ventures across logistics, operations and on-demand sectors. As the Co-Founder and Co-CEO of VOLY, he raised Australia’s largest seed round at the time and rapidly expanded the online grocery delivery business across Sydney and Melbourne. Prior to VOLY, Mark served as the Launcher and Country Manager for Cloud Kitchens in Australia, where he built a market-leading business from the ground up.

Before his success in the startup ecosystem, Mark held various positions at Uber Australia, where he played a crucial role in launching Uber’s Shared Rides product in multiple cities and led the centralised global-focused team. His experience also includes a strong background in investment banking, with roles at Goldman Sachs and Lazard, where he focused on mergers and acquisitions, equity issuance, and debt financing within the infrastructure, natural resources, and energy sectors.

Mark holds a Bachelor of Commerce and a Bachelor of Economics from the University of Western Australia, with majors in Corporate Finance, Investment Finance, International Economics, and Money & Banking. He also studied abroad at the Copenhagen Business School on scholarship.

Darren Hunt

Chief Financial Officer

Darren Hunt

Chief Financial Officer

Darren is a Certified Practicing Accountant with over 20 years of experience as a finance leader. He has extensive experience in the pharmaceutical and agricultural industries, working with start-ups and companies acquired through M&A.

Most recently Darren was the CFO of Cell Therapies Pty Ltd. He was part of the start-up company at Celgene ANZ, building out the Finance, IT and Operations infrastructure. He spent two years in the US at Celgene Headquarters based in New Jersey, which involved leading integration teams on M&A projects. Darren was in charge of Celgene APAC Finance for five years. Prior to Celgene, Darren oversaw Finance at PlantTech Pty Ltd.

Darren holds a Bachelor of Business Degree in Accounting from Deakin University.

Lucas Huntimer

Head of Research & Development

Lucas Huntimer

Head of Research & Development

Lucas, an accomplished professional in animal health and immunobiology, began his journey at Novartis Animal Health, honing skills in R&D, Quality Control, and Manufacturing. As a Senior Scientist and Project Leader at Novartis and then Elanco Animal Health via acquisition, Lucas led and contributed to the development of groundbreaking biologicals, pharmaceuticals, and feed additives, ensured compliance through requalification testing, and de-risking proof of concept technologies for advancement into development.

Lucas is dedicated to advancing animal health innovation and providing tools to veterinarians, pet owners, and producers. He excelled in strategic pipeline evaluation R&D and business development roles, contributing significantly to the global pipeline of companion and food animal health products.

With a Ph.D. in Immunobiology and a B.S. in Biology and Microbiology, Lucas resides in greater Indianapolis with his wife, daughter, and son as well as two dogs and two cats.

Dr Silke Jacques

Principal Scientist

Rafaella Mazza

Commercialization Associate

Rafaella Mazza

Commercialization Associate

Rafaella has agriculture in her blood, having grown up in Brazil in a family of smallholder farmers and ranchers. Her career spans the agribusiness industry, having worked for organizations such as early-stage regenerative agriculture startups (Rizoma Agro and Vayda), global agriculture corporations (Monsanto and John Deere), and financial institutions (EY, BlackRock, and Atlantico VC) in operational, business development, and strategic roles.

Across her career, Rafaella has explored the intersection of agricultural products and climate impact, including building commercial partnerships, interacting with carbon markets, and developing optimal sustainable systems for farmers. Rafaella currently works in the commercialization team at Rumin8 and her focus is on helping stakeholders across the global beef and dairy industry transition to a climate-optimal future, one cow at a time.

Rafaella holds a Bachelor of Agronomic Engineering from Universidade de São Paulo and an MBA from Harvard Business School. She also studied Bioeconomy at Universität Hohenheim on a study abroad scholarship and has a certificate in New Ventures Leadership from MIT.

Jeff Osowski

Head of Market Intelligence

Jeff Osowski

Head of Market Intelligence

Jeff is a global strategy and operations leader. He combines strategy consulting experience with execution skills forged in dynamic startup environments.

He has built out Sales, Commercial, BizOps and RevOps teams while influencing GTM strategy to systematically achieve growth targets efficiently.

Previously, Jeff built go-to-market operations teams at WM Technology and Metamap that delivered aggressive revenue growth. Prior to those experiences, he consulted at Bain and Company across Retail, Private Equity, Oil & Gas, and Social Impact. He was also a founding member of Interior Define. Jeff has an MBA from London Business School and BBA in Finance and Psychology from the University of Notre Dame.

Jeff grew up in Southwest Michigan. He currently lives in Long Beach California with his wife, daughter, and Bernedoodle.

Richard Quinlan

Head of Field Trials and Market Development

Richard Quinlan

Head of Field Trials and Market Development

 

Richard Quinlan has over 30 years’ experience conducting trials and disseminating research findings to farming businesses in Western Australia.

He grew up in Mackay in Queensland and studied Agricultural Science at the University of Queensland, Brisbane.

He began his career at the Department of Agriculture in Western Australia. He then moved into an agronomy role in broadacre agriculture with the merchandise business Elders for 8 years. In this role he gained a deep understanding of how some of the largest companies in the world (Bayer, Syngenta, BASF, FMC, etc) develop and market agricultural products through the various supply chains.

Following this he created his own business in partnership with Planfarm PTY LTD which is the largest independent consulting firm in Western Australia. He has been a major shareholder and board member with Planfarm PTY LTD for the last 15 years and worked with some of Western Australia’s largest farming enterprises. More recently he has worked with sovereign states to improve the food security of their broadacre agricultural assets based in Australia.

Dr Silke Jacques

Principal Scientist

 

Dr Silke Jacques has over 10 years of global work experience in research, project management and personnel management in Belgium, Korea and Australia.

She began her research career at Ghent University (Belgium) completing a PhD in Biochemistry and Biotechnology in 2014. As a Junior Professor, she then joined and established the start-up of a Belgian university branch campus together with three American Universities in Songdo, South-Korea. Dr Jacques lectured Virology, set-up the practical courses in Microbiology and established a functional research lab focusing on marine bioactives from seaweed to stimulate plant growth.

More recently, she spent the last 5 years in Australia, focusing on agricultural research both at government institutions (CSIRO) and universities (Curtin University) mainly focusing on crop protection. In her role with Rumin8, Silke combines her scientific, communication and project management skills, built through collaboration with government, industry and universities, with her passion for innovative entrepreneurship.

Dani Sangster

Head of People

Dani Sangster

Head of People

 

Dani has over a decade of experience in people operations roles across various industries and geographies.

After graduating from the University of California, Santa Barbara, Dani spent her early career in eclectic ventures with a common thread: teaching, leading, and developing people. Moving to the tech world, she narrowed her focus on people operations, most recently building and leading the function from scratch at the last five startups she worked with. At the core of her work, she enables companies to attract, develop, and retain teams, specializing in building programs and infrastructure that support remote organizations. She functions both in house and as a consulting asset under Sonder HR, her company. In her role with Rumin8, her focus is on building a world class team and the support systems to empower them to do their best work, along with facilitating the set up of the company for operational success in a global setting.

When not helping companies level up their commitment to people, Dani can be found exploring the beautiful mountains and desert around her home in Bend, Oregon with her dog, Stella.

Kosta Stavreas

Chief Commercial Officer

Kosta Stavreas

Chief Commercial Officer

 

Kosta is a business strategy and innovation expert. He has spent his career working alongside the leadership teams of Fortune 500 companies to develop growth strategy, invent novel products and services, and build business lines. His experience spans value creation across a diverse array of industries, including renewable energy, natural resources, consumer electronics, financial services, B2B software, pharmaceuticals, and hospitality, and has deep knowledge of the strategy and innovation practices employed spanning startup companies through to global multi-nationals.

Notable clients include Samsung, Sony, Dunkin Donuts, Wells Fargo, MunichRe, Cox Communications and AngloGold Ashanti. He has spent most of his career in the United States, where he founded Maneas, a strategy consulting and technology development practice based in New York; lead innovation teams at Fahrenheit 212; held operational leadership roles in early stage companies; and has helped dozens of startups sharpen their strategy, raise capital and commercialize their technologies.

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