# Ruminant BioTech

Startup profile on Capital Atlas: https://capitalatlas.ai/startups/ruminant-biotech

- Industry: Biotechnology
- Headquarters: Auckland, New Zealand
- Website: www.ruminantbiotech.com
- Total disclosed funding: $9.5M
- Latest round: Series A (Nov 26, 2025)
- Investors on record: 4

## About

Based in Auckland, New Zealand, and founded in 2021, Ruminant BioTech is a company focused on mitigating methane emissions from ruminant animals. In November 2025, Ruminant BioTech raised NZD 17 million in series A funding co-led by new investors Rosrain Investments Limited and Cultivate Ventures, with participation from another new investor Marex Spectron International Limited. Returning investor AgriZeroNZ also participated in the round.

The company’s primary product is a slow-release bolus designed for use in cows. This device remains in the animal’s stomach for up to six months, reducing methane emissions during that time. Clinical trials have demonstrated that the bolus can achieve over 70% methane reduction within three months and helps in addressing greenhouse gas emissions from livestock.

The company will use the November 2025 funding to support the commercial launch of its product next year.

## Funding rounds

- Series A, Nov 26, 2025, $9.5M — Marex Spectron International Limited, Cultivate Ventures, AgriZeroNZ, Rosrain Investments Limited

## Investors

- Marex Spectron International Limited — Series A
- Cultivate Ventures — Series A
- AgriZeroNZ (https://capitalatlas.ai/funds/agrizeronz) — Series A
- Rosrain Investments Limited — Series A