Equisera is engineering patented RiPR technology that converts waste into clean fuels, unlocking decarbonisation at scale.


equisera.com

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How much would you consider investing

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Highlights

  • We have raised over £9m since 2022, including over £1m in grant funding from Innovate UK.

  • Our route to market is maritime bio-methanol, with further applications for RiPR gases in industrial heat and power.

  • Letters of intent for deployment at end of the decade with businesses spanning maritime, farming, waste management and an off-grid industrial park.

  • Designed, engineered and manufactured in the UK, RiPR has advanced through 4 prototypes to TRL6, with a pilot plant launching in 2026.

Opportunity

Wet biogenic waste, from food processing, farms and industrial waste streams, is a disposal cost and a methane source. Existing treatment recovers little of its energy value. RiPR uses supercritical water reforming to convert that waste into biomethane, hydrogen, carbon dioxide and biochar, in modular units built for deployment at source. RiPR's gas outputs are also the direct feedstocks required for methanol synthesis, giving Equisera a route to commercialise: maritime bio-methanol, the second most common alternative fuel in the global vessel orderbook.

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The team

James Milner

CEO

David Gammon

Chair (Board Member)


Jonathan Milner

Investor Director (Board Member)

John Oakey

Energy Technology Specialist (Board Member)


Ekam Gill

Chief of Staff

Nadia Shahanaz Hussain

Head of Marketing


Michael Sims

Chemistry Lead

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This campaign for Equisera has been approved by Seedrs Limited (trading as Republic Europe) ("Republic Europe", "us" or "we"), with registered office at Cubo Soho, Ilona Rose House, Manette Street, London, W1D 4AL, United Kingdom, as of 21 September 2026 as a financial promotion. Republic Europe is authorised and regulated by the Financial Conduct Authority with firm reference number 550317. In approving this campaign, Republic Europe has concluded that the information, taken as a whole, is "fair, clear and not misleading." This means that for factual statements we have reviewed evidence of their accuracy, and that for aspirational statements we believe they are phrased appropriately in light of their speculative nature. You should note that in the case of factual statements, the evidence we review is provided by the business, and we do not audit it, which means that we may not be able to identify forged or altered evidence. You should further note that in the case of aspirational statements, the nature of the type of businesses presented on the Republic Europe platform is such that they are likely to have high ambitions, and we may approve statements that convey those ambitions even where we do not believe, or we do not have a view on whether it is likely, that they will be fully realised. The pre-money valuation and investment sought in the campaign are those set by the business: they are not reviewed or established by us, and the valuation is not an independent view of what the business is worth. Given the nature and type of businesses presented on the Republic Europe platform, it is possible that the business has very little cash remaining prior to receiving this investment, and the investment sought may be necessary for the business's on-going existence.

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