i6 Group nets £15.1m Series B to digitise aviation fuelling globally
This article covers i6 Group, a UK-founded provider of digital fuel management software for aviation, which has raised £15.1m in a Series B funding round led by growth investor Yttrium. The funding is intended to support international expansion, investment in technology and data infrastructure, and team growth, and targets airlines, airports and fuel service providers seeking improved operational control, efficiency and reduced emissions.
i6 Group, a UK-founded provider of digital fuel management software for aviation, has raised £15.1m ($20m) in a Series B round led by growth investor Yttrium, with follow-on participation from International Airlines Group (IAG), World Kinect and Shell Ventures. The capital is earmarked for international expansion, technology and data infrastructure investment, and team growth — a bet that digitalisation of aviation fuelling can cut costs and carbon at scale.
Why it matters
Fuel is one of the largest operating costs for airlines and a major source of aviation emissions. i6’s platform digitises processes that have long been manual and paper-based, connecting airlines, airports, fuel service providers and suppliers in one cloud system. That automation promises tighter operational control, improved safety and real‑time visibility across the fuelling chain — capabilities that are increasingly central as carriers push both efficiency and sustainability targets.
Inside the deal
The £15.1m Series B was led by Yttrium, a European B2B growth equity firm. Existing strategic investors IAG, World Kinect and Shell Ventures also participated.
In the announcement, Tim Kindt, Partner at Yttrium, said:
"i6 has developed a unique technology platform that is transforming how aviation fueling is managed globally. The company’s strong growth momentum and continued support from existing investors underscores our confidence in i6’s vision and execution, and we are proud to partner with the team as they enter their next stage of growth."
Advisory and legal roles on the transaction were handled by Arma Partners as exclusive financial adviser to i6, Bird & Bird for i6’s legal counsel and Ladgate advising Yttrium.
What i6 actually does
Founded in 2013, i6 positions itself as a single digital layer for the fuel operations lifecycle — from refinery logistics through to wingtip delivery. Its cloud platform is installed at more than 200 airports worldwide and is used by major airlines and fuel handlers. Customers named by the company include British Airways, JetBlue, KLM, Air Canada, Virgin Atlantic, Menzies Aviation, PrimeFlight, Shell Aviation, Q8 Aviation and World Fuel.
These clients point to two things: i6’s software is being adopted by both global carriers and third‑party service providers, and its product needs to integrate with complex, regulated ground operations across many jurisdictions.
Founder perspective
Co‑founders Alex Mattos and Steve Uhrmacher framed the round as validation of market momentum and a tool to accelerate deployment.
In the announcement, Alex Mattos, Co‑founder of i6 Group, said:
"This round reflects the strong momentum behind our technology and the measurable results it is delivering for customers worldwide. With the new funding, we can expand our footprint faster and continue shaping the future of digital fuel management."
In the announcement, Steve Uhrmacher, Co‑founder of i6 Group, said:
"Digital fueling is becoming the operational standard in aviation. This investment helps us accelerate that transition by equipping airports and airlines with smarter, more connected systems that drive efficiency and reduce emissions at scale."
Who’s behind the fund
Yttrium is a growth equity investor focused on European B2B technology companies, with offices in London, Munich and Frankfurt and reported assets under management of around £604m ($800m). Its participation signals interest from growth investors in industrial SaaS solutions that can deliver measurable unit‑economics improvements and sustainability gains.
The bigger picture
The deal sits at the intersection of two trends: digital transformation of legacy operational processes in heavy industries, and investor appetite for climate‑adjacent software that reduces emissions through efficiency rather than direct hardware replacement. For airports and airlines under pressure to cut costs and meet tougher environmental commitments, software that centralises data and automates fuel workflows is a pragmatic short‑to‑medium‑term lever.
For the UK and European startup ecosystem, the round highlights continued capital flow into B2B industrial software and the value of building solutions that serve complex, regulated sectors. As airlines and handlers look to squeeze both cost and carbon out of operations, expect more deals aimed at operational digitalisation rather than consumer‑facing features.
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