Participated · Series A · Jun 2026

MAKO develops Flightfilm, a shark-skin-inspired surface technology intended to reduce skin-friction drag on aircraft and thereby lower fuel burn and emissions. The company was previously known as MicroTau and is based in Australia. Its immediate plans following the Series A are to pursue certification, scale production and roll out Flightfilm commercially for in-service aircraft. MAKO raised AU$28 million (about US$20 million) in the Series A led by Virescent Ventures to fund those efforts. The article did not disclose revenue, user numbers, or other operating metrics. No further details on product deployment timelines or prior funding were provided.

Led · Equity · Feb 2026

LanzaJet develops and licenses patented ethanol-based alcohol-to-jet (ATJ) technology to create sustainable aviation fuel and renewable diesel. Its flagship Freedom Pines Fuels plant in Soperton, Georgia is the world’s first fully integrated, commercial-scale ethanol-to-fuels facility and, in late 2025, produced ASTM on-spec jet fuel, marking the first commercial-scale SAF made from ethanol. The company’s technology offers a non-oil-based, scalable solution compatible with today’s aircraft, positioning it to accelerate decarbonization in aviation. LanzaJet is also advancing Project Speedbird, a major SAF biorefinery planned for Teesside in the United Kingdom, aided by a grant from the UK Department for Transport’s Advanced Fuels Fund. An innovative multi-year tolling structure at Freedom Pines secures waste-based ethanol feedstock and guarantees offtake for all production. Financially, the firm has attracted backing from strategic investors such as Airbus, All Nippon Airways, Breakthrough Energy, IAG, Shell, and Microsoft’s Climate Innovation Fund. The latest capital raise values the company at $650 million pre-money and supports further commercial deployments of its ATJ technology.

Participated · Series B · Nov 2025

Founded in 2013 by Alex Mattos and Steve Uhrmacher, i6 Group offers a unified, cloud-based platform that digitizes the historically paper-based aviation fueling process. The software gives airlines, fuel suppliers, and ground handlers real-time visibility into fueling operations, improving safety, efficiency, and carbon-emission performance. Its technology is deployed at over 200 airports worldwide and counts British Airways, JetBlue, KLM, Air Canada, Virgin Atlantic, Menzies Aviation, PrimeFlight, Shell Aviation, Q8 Aviation, and World Fuel among its customers. Headquartered in Farnborough, U.K., the company generates revenue by licensing its SaaS platform to these aviation organizations. The recent Series B financing strengthens the balance sheet and enables expanded investment in technology and data infrastructure. Proceeds will also support international expansion and the hiring of additional product and customer-success talent. With a broadened investor base and fresh capital, i6 aims to accelerate adoption of its fuel-management solution across new geographies and customer segments.

Participated · Series B · Sep 2025

Founded in 2021, OXCCU is developing proprietary catalysts and reactor designs that directly hydrogenate CO₂ to create hydrocarbon syncrude branded as OXFUEL, which can be refined into jet-fuel-grade SAF. Its single-step, iron-based Fischer-Tropsch process eliminates the RWGS stage and reduces hydrogen demand, promising lower capital and operating costs than competing e-fuel pathways. The company operates from Begbroke Science Park and London Oxford Airport, where its OX1 demonstration plant was validated in 2024. OXCCU is positioning OXFUEL to help the UK meet its target of 10% SAF in jet fuel by 2030 and is now researching how its fuel can limit non-CO₂ warming effects such as soot-induced contrail formation. Financially, the start-up secured €20.6 million of initial funding in June 2023, followed by a €23.7 million round in September 2025, and most recently obtained a €2 million grant from the ATI Non-CO₂ Programme. These funds support technology scale-up, commercial deployment and climate-impact validation, underscoring OXCCU’s emergence as a leading UK climate-tech innovator.

Participated · Series B · Jul 2022

ZeroAvia is an Everett-based sustainable aviation startup building hydrogen-electric airplane engines designed to eliminate carbon emissions from regional flight. The company’s core product replaces conventional jet fuel propulsion with hydrogen fuel cell powertrains. Its engineering roadmap focuses on certifying these engines for commercial use in small regional aircraft. ZeroAvia continues to refine its technology through ground and flight testing programs. The startup recently secured additional capital to support these efforts. Management stated that the new funds will extend the firm’s operating runway for roughly two years, underscoring the importance of continued investment as it advances toward commercialization.