Ruminati is your emissions management partner. We help you accurately calculate your emissions data and provide insights that make a real difference across the entire agricultural supply chain.

The Ruminati team at Beef 2024

Ruminati began with a simple idea: to create something better for producers when it comes to tracking on-farm emissions.

Founded by farmers Bobby Miller and Will Onus, alongside tech expert Peter Leihn, Ruminati was built on the belief that emissions management could be easier, smarter, and more accessible. With guidance from industry experts like Professor Richard Eckard, Dr. Robert Banks, and Richard Rains, we developed a tool that puts producers first, making emissions tracking straightforward and intuitive.

Our emissions calculator and reduction planner make it easy for producers, feedlotters and processors to track and manage their emissions data, but it doesn’t stop there. With simple and secure data sharing options, Ruminati users can also collaborate with corporate partners and support industry-wide action.

We’re not only backed by experts and supply chain leaders, but we always keep producers at the heart of what we do. Our tools aren’t just user-friendly and efficient; they’re built by people who understand the industry because we live it every day. Our values — collaboration, service, proactivity, and respect — drive us to deliver meaningful results, and we’re here to help you turn emissions data into opportunities for growth and sustainability.

The Ruminati team

Will Onus

Bobby Miller

CEO and Founder

Bobby combines technical know-how with real-world experience managing his family's 4,250ha property in Coolac. Passionate about empowering producers, Bobby’s mission is to make emissions tracking accessible, so farmers can highlight their sustainability efforts and drive climate stewardship across the supply chain.
Will Onus

Will Onus

COO and Founder

Will brings hands-on experience from running his grazing enterprise ‘Woodside.’ Committed to supporting farmer-led sustainability, Will champions Ruminati’s mission to simplify emissions reporting, helping every producer tell their sustainability story and drive positive change within the industry in a straightforward, no-nonsense way.
Bill Findlay - Ruminati Customer Engagement Lead

Bill Findlay

Customer Engagement Lead

Bill, a cattle farmer and Ruminati’s Customer Engagement Lead, blends his investment banking experience with deep agricultural roots. Passionate about connecting producers with innovative solutions, Bill is committed to helping them understand the benefits of emissions reporting and sustainability within their operations.
Lily Rodgers - Ruminati's Customer Success Lead

Lily Rodgers

Customer Success Lead

Growing up on a cattle farm in the Hunter, Lily is passionate about supporting farmers on their sustainability journey. With a Master’s in Sustainability, she’s committed to helping producers measure and manage their emissions, believing that tracking is the first step towards building a more sustainable future for Australia’s ag industry.
Rosie Rayns is Ruminati's Communications and Marketing Manager

Rosie Rayns

Marketing and Communications

Rosie is a communications professional with a background working for purpose-driven organisations. Combining strategic thinking with creative engagement, Rosie is passionate about supporting the agriculture industry to lower emissions, break down barriers, and unlock the benefits of the evolving emissions space for all levels of the supply chain.
Fernando Matsunaga - Ruminati's Head of Product

Fernando Matsunaga

Head of Product

With 25 years of experience in digital systems and analytics, Fernando excels in creating practical, data-driven solutions. He’s dedicated to simplifying the complex world of emissions management, making it actionable and beneficial for the agricultural industry, and helping farmers drive positive change from the ground up.
Rowan Winsemius - Ruminati's Head of Engineering

Rowan Winsemius

Head of Engineering

Rowan loves transforming technical challenges into practical solutions. With roots in regional NSW and a career spent on environmental data projects, Rowan is passionate about building user-friendly applications that make sustainability reporting accessible and straightforward for producers and their supply chain.
Iain Kirkpatrick - Ruminati's Lead Developer

Iain Kirkpatrick

Lead Developer

A full-stack developer originally from NZ, Ian is passionate about building impactful software solutions. Previously transitioning from GIS to software development in Australia, Ian combines his expertise to support Ruminati’s mission, helping farmers make informed decisions with clear, accessible data.
John Francis - Ruminati's Head of Data

John Francis

Head of Data

With a background in agricultural production and over 10 years of experience in agronomy, John is dedicated to improving farm performance through data-driven insights. Known across the industry for his strong analytical skills, John thrives on solving agriculture’s challenges and turning obstacles into opportunities.
Kelly Piper - Ruminati's Bookkeeper

Kelly Piper

Bookkeeper

Kelly is a Registered BAS Agent with a finance background and a passion for supporting agricultural businesses. With 22 years of on-farm living and hands-on experience in rural merchandise, Kelly has a unique understanding of both the needs of producers and the intersection between emissions reporting, growth and sustainability.

Our advisors

Peter Leihn - Cofounder of Ruminati

Peter Leihn

Technical Advisor & Co-founder

Prof. Richard Eckard

University of Melbourne

Richard Rains

Livestock Industry Leader

Dr. Robert Banks

University of New England