Our investment in Triple Bio
Cows burp around 5% of the energy they get from feed in the form of methane. This gas is 30x more potent than CO2 as a greenhouse gas. With a global herd of 1.4 billion cows and even more other ruminants, this is a rather large problem — and one the industry has long known is solvable. The challenge has been finding a solution that actually works for farmers.
Existing approaches can reduce methane emissions to a degree, but make the economics difficult for farmers to justify — some hurt production, some are too expensive, some are hard to use in practice. Seaweed-based approaches have shown theoretical promise but are hard to scale and raise safety concerns. Plant extracts and essential oils can achieve modest reductions but have not delivered consistent productivity gains. Most existing options ask farmers to give something up. None of them reliably offer both strong methane reduction and better productivity at the same time.
Triple Bio has a simple but powerful insight: the energy cows burp away as a potent greenhouse gas could instead be producing more milk. Their feed additive sets out to do exactly that — reduce methane and boost productivity at the same time, without the farmer having to trade one for the other.
To get there, they have developed a platform called RumeNRG, with two products that use the same underlying technology in different ways. The first works as a delivery system: it wraps existing methane-reducing molecules in a protective shell that keeps them intact until they reach the rumen — the cow's first stomach, where digestion and methane production both happen. This protection means far less of the active ingredient is needed; early tests showed a 500-fold reduction in dose with one known molecule, making existing solutions safer, cheaper, and usable across a wider range of diets. The second product works differently: rather than targeting methane directly, it influences how hydrogen moves through the rumen, making it easier for beneficial bacteria to capture that hydrogen and turn it into nutrients the cow can use. Lab tests showed a 28% increase in the nutrients produced from feed, which modelling suggests could translate into 5–10% increases in milk yield. Live animal trials to validate both products are planned for later this year.
The longer-term goal is to merge these two outcomes into one: a single additive that boosts both productivity and methane reduction without needing to load it with other molecules at all.
Triple Bio is led by an awesome group of scientists. Dr. Pete Rowe (CEO) previously built and led Deep Branch (now Aer.bio), a company producing animal feed ingredients through gas fermentation, taking it from lab concept to pilot scale. Dr. Tracy Nevitt (CSO) brings 20+ years in microbiology and R&D, with deep expertise in rumen science and IP development in this exact space. Dr. Bart Tas (CTO) is an animal nutritionist with more than two decades of experience across Wageningen, ForFarmers, and DSM, focused on methane-reduction trials and feed additive development.
We are proud to back Pete, Tracy, Bart and the growing Triple Bio team from day one — and it has been a real pleasure to collaborate on this with our friends at Marble and Nucleus Capital.
