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Kelluu

Hydrogen-powered autonomous airships for persistent ISR

Overview

Kelluu designs, builds, and operates hydrogen-powered autonomous airships for persistent aerial intelligence, surveillance, and reconnaissance. Its unmanned fleet delivers long-endurance, low-emission monitoring and high-resolution sensing over large areas, filling the gap between satellites and drones. The airships carry sensors for defence and civilian uses such as forestry, weather monitoring, smart-city sensing, critical infrastructure protection, and digital twins, with missions claimed to exceed 12 hours and coverage over tens of thousands of square kilometres from a single base. Kelluu differentiates itself through dual-use capabilities, NATO involvement (DIANA graduate), and the development of Kelluu AI Labs geospatial foundation models to power geospatial analytics. The company recently raised €15 million in a Series A led by the NATO Innovation Fund to scale the platform, optimize operations, and expand the fleet.”}

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About Kelluu

Simplify's Rating
Why Kelluu is rated
C
Rated C on Competitive Edge
Rated C on Growth Potential
Rated C on Differentiation

Industries

Data & AnalyticsAI & Machine LearningAerospaceDefense

Company Size

51-200

Company Stage

Series A

Total Funding

$20.6M

Headquarters

Joensuu, Finland

Founded

2018

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Simplify's take

What believers are saying

  • September 2026 factory buildout triples capacity and expands manufacturing to 100 airships yearly.
  • Canada qualification lets Kelluu quote directly to defense buyers until July 2031.
  • April 2026 NATO Innovation Fund backing validates Kelluu and funds international expansion.

What critics are saying

  • Gen 2 promises 36-hour flights by 2027; field failure would cripple procurement momentum.
  • Joensuu factory completion in summer 2027 must hit schedule, or 100-airship output stalls.
  • Defense-heavy revenue faces contract concentration; losing NATO or Canada access would threaten survival.

What makes Kelluu unique

  • Kelluu combines hydrogen endurance, GNSS-denied ISR, and Arctic operations from Joensuu.
  • Kelluu is the only airship supplier in Canada's Defence Drone Initiative through July 2031.
  • Kelluu AI Labs pairs airship data with geospatial foundation models for defense customers.

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Funding

Total Funding

$20.6M

Meets

Industry Average

Funded Over

7 Rounds

Series A funding typically happens when a startup has a product and some customers, and now needs funding to scale. This money is usually used to grow the team, expand marketing, and improve the product. Venture capital firms are frequently the main investors here.
Series A Funding Comparison
Meet Average

Industry standards

$15M
$8.2M
$15M
$16.5M
$30M

Benefits

  • Health Insurance
  • Meal Benefits
  • Flexible Work Hours
  • Remote Work Options
  • Phone/Internet Stipend

Company News

Defence Nordic
Sep 22nd, 2026
Finnish airship maker to triple production with new factory.

Finnish airship maker to triple production with new factory. The facility will employ around 70 to 80 people at full capacity. September 22, 2026 12:28 PM Kelluu is building a new production and research facility in Joensuu, Finland, that will triple its manufacturing capacity and enable the production of up to 100 autonomous airships a year. The airships are designed to provide persistent data-gathering capabilities from the air and can be used for defence, infrastructure monitoring and other surveillance applications.

Kelluu
Sep 21st, 2026
Kelluu to triple airship production with a new factory in Joensuu.

Kelluu to triple airship production with a new factory in Joensuu. Kelluu is building a new production and R&D factory at GreenPark in Joensuu. It will triple the company's manufacturing capacity and take output to one hundred autonomous airships a year. The factory is due to be completed in summer 2027. This is no ordinary factory. It will build the world's most advanced airship fleet in series production, a fleet that can form a permanent data-gathering infrastructure in the sky. The technology is used in defence as well as in developing infrastructure and a range of environments. It also gives Finland something it has lacked until now: a series production line for autonomous aircraft. "There is a lot of talk in Europe about self-reliant defence and surveillance capability. In Finland, for all the talk, drones have been left on the sidelines, and we lack a credible ability to build autonomous systems at scale ourselves. That is what we are building now. Credibility, and cutting-edge technology that can be integrated into the systems of different countries," says Kelluu CEO Janne Hietala. Kelluu's entire Joensuu staff will move to the new premises, and at full capacity the factory could employ around 70 to 80 people. The premises are being developed by Joensuun Yrityskiinteistöt Oy, a company owned by the City of Joensuu. "It's great that we got this over the line and construction can begin. This was a long-term effort, from the initial survey through to the lease, the financing and the other plans. A lot of work went into making it happen, and it's a win for everyone that Kelluu is building its factory right here, as part of GreenPark's high-tech cluster," says Jarkko Purmonen, Managing Director of Joensuun Yrityskiinteistöt Oy. The reason for the new factory is simple. Capacity has to grow in both production and R&D, and the current premises can't deliver that. Developing a fleet suited to Arctic conditions in particular demands a lot from a factory. "The new factory takes development to a whole new level, in manufacturing, in building AI capability and in putting the latest camera and sensor technology to work in our airships. At the same time we are building a factory concept that can be replicated in other countries," Hietala says. Kelluu has made a deliberate choice. Instead of building one large factory that does everything, it is building smaller modular units that can be up and running quickly and still meet world-class requirements. Because the factories are modular, units can be combined on one site or spread around the country, even underground if needed. That way production never depends on a single large, expensive site. The factory is itself part of critical infrastructure, and in future it can be protected and monitored by Kelluu's own airships.

Kelluu
Sep 7th, 2026
Kelluu selected for Canada's Defence Drone Initiative.

Kelluu selected for Canada's Defence Drone Initiative. Canada's Defence Investment Agency, which runs defence procurement for the country, has selected Kelluu's Canadian subsidiary Kelluu Canada Ltd. as a qualified supplier under the Defence Drone Initiative. Canadian defence authorities can now request quotes and place orders with Kelluu directly, without running a separate competition. The arrangement runs to the end of July 2031. Canada launched the programme in July 2026 to speed up how fast its armed forces get uncrewed systems into the field. Kelluu is the only airship company among the suppliers named so far. The others include defence primes such as Lockheed Martin, BAE Systems and Rheinmetall. "Under this arrangement we can offer tactical ISR to the Canadian armed forces. Our platform delivers exactly what is valued here: autonomous, persistent and cost-effective surveillance that was designed for arctic conditions," says Janne Hietala, CEO of Kelluu. Kelluu established Kelluu Canada Ltd. in Ottawa this summer. The office is at Area X.O, Canada's hub for defence innovation and emerging technology. Canada is part of Kelluu's focus on Arctic autonomy and deterrence. Kelluu's airships deliver detailed situational awareness from below the clouds, over large areas that are remote and thinly covered. The company is building towards a network of hundreds of airships, doing close to the ground what satellites do from orbit.

The AI Insider
Aug 27th, 2026
10 nordic-based AI scale-ups you need to know in 2026.

10 nordic-based AI scale-ups you need to know in 2026. The Nordics have built a reputation for pairing deep technical rigor with a genuine focus on solving specific, high-stakes problems, and this list bears that out. Sweden contributes the largest share, with entries spanning video analytics, data observability, and driving risk insights, while Denmark brings clinical AI for radiology and elder care, and Finland and Norway round things out with tax AI and business app-building tools. From brain MRI decision support to AI nurse companions, these are the companies proving that Nordic AI is being built where the consequences of getting it wrong are highest. Companies are listed in alphabetical order. This list is non-exhaustive. Headquarters: Helsinki, Southern Finland, Finland | Total Funding: $47.3M | Last Funding: June 4, 2025 Transfer pricing is one of the more complex, high-stakes compliance obligations multinational corporations face, requiring constant documentation and analysis across jurisdictions with different rules and enforcement regimes. Aibidia is a fintech company that provides AI-powered transfer pricing management solutions to multinational corporations, automating a compliance function that has traditionally relied on manual analysis and outside advisors. The company has raised $47.3 million in total funding, with its most recent round closing in June 2025, as it expands its transfer pricing platform across multinational clients. Headquarters: Copenhagen, Syddanmark, Denmark | Total Funding: $36.0M | Last Funding: September 18, 2025 Radiology departments and imaging centers face a persistent shortage of specialists relative to the volume of scans that need to be read, and brain MRI interpretation in particular carries little room for error given the stakes involved. Cerebriu is a clinical AI company developing brain MRI decision support technology for radiology departments and imaging centers worldwide, aiming to extend specialist capacity rather than replace clinical judgment. The company has raised $36 million in total funding, with its most recent round closing in September 2025, as it expands its clinical AI platform across imaging centers. Headquarters: Stockholm, Stockholms Län, Sweden | Total Funding: $25.9M | Last Funding: December 12, 2025 Auto insurers have historically priced risk using broad demographic and vehicle data rather than how a specific person actually drives, leaving both safer drivers and insurers themselves without the precision that better data could offer. Greater Than is an insurtech company that delivers insights into driving behavior, crash risk, and environmental impact, giving insurers a far more precise basis for underwriting than conventional risk models allow. The company has raised $25.9 million in total funding, with its most recent round closing in December 2025, as it expands its driving risk analytics platform. Headquarters: Gothenburg, Västra Götaland, Sweden | Total Funding: $47.9M | Last Funding: April 28, 2026 Video surveillance generates far more footage than any human team can realistically monitor in real time, leaving most security incidents discovered only after the fact, when the footage is reviewed rather than acted on as it happens. Irisity describes itself as a world-leading video analytics company, applying AI to surveillance footage to flag incidents as they unfold rather than after the fact. With $47.9 million in total funding, the highest on this list, and its most recent round closing in April 2026, Irisity continues to expand its video analytics platform globally. Headquarters: Joensuu, Eastern Finland, Finland | Total Funding: $22.0M | Last Funding: April 14, 2026 Monitoring environmental conditions and infrastructure across large areas has traditionally required either expensive satellite imagery with limited resolution or costly, labor-intensive ground surveys. Kelluu develops autonomous aerial monitoring systems to collect and analyze high-resolution environmental and infrastructure data, offering a resolution and cost profile that neither satellites nor ground surveys can match on their own. The company has raised $22 million in total funding, with its most recent round closing in April 2026, as it expands its autonomous aerial monitoring platform. Headquarters: Fornebu, Akershus, Norway | Total Funding: $24.8M | Last Funding: May 21, 2026 Camera systems used in industrial, security, and scientific settings increasingly need to do more than simply capture footage; they need to interpret it in real time, a capability that depends as much on intelligent software as it does on the sensor itself. Muybridge is an imaging platform that develops software and sensors for cameras, pairing hardware with the AI-driven interpretation layer that modern camera applications increasingly require. The company has raised $24.8 million in total funding, with its most recent round closing in May 2026, as it grows its imaging platform across industrial and scientific use cases. Headquarters: Oslo, Oslo, Norway | Total Funding: $28.4M | Last Funding: October 23, 2025 Building software applications that connect to real business data has traditionally required dedicated engineering resources that most teams, particularly outside of engineering departments, simply do not have. Riff positions itself as the first business-ready app builder for teams to create real AI apps that connect to data and get work done, extending app-building capability beyond dedicated development teams. The company has raised $28.4 million in total funding, with its most recent round closing in October 2025, as it expands its AI app-building platform. Headquarters: Copenhagen, Hovedstaden, Denmark | Total Funding: $25.4M | Last Funding: April 15, 2026 Customer onboarding and regulatory compliance processes, particularly in financial services, involve extensive document review and verification work that grows more burdensome as regulatory requirements expand. spektr is a software platform that supports onboarding and regulatory compliance processes using artificial intelligence, automating verification and review work that has traditionally consumed significant compliance team capacity. The company has raised $25.4 million in total funding, with its most recent round closing in April 2026, as it expands its compliance automation platform. Headquarters: Copenhagen, Hovedstaden, Denmark | Total Funding: $25.9M | Last Funding: September 9, 2025 Nursing staff shortages have left care teams stretched thin across hospitals and elder care facilities, with patient monitoring often limited to periodic manual checks rather than continuous observation. Teton is building what it describes as the ultimate AI nurse companion, aiming to give care teams a continuous layer of patient monitoring that periodic manual checks cannot provide. The company has raised $25.9 million in total funding, with its most recent round closing in September 2025, as it expands its AI nurse companion platform across care settings. Headquarters: Stockholm, Stockholms Län, Sweden | Total Funding: $46.4M | Last Funding: March 5, 2026 Data teams increasingly depend on data lakes, warehouses, and real-time streams to power everything from analytics to AI models, but bad or inconsistent data flowing through those systems can quietly undermine everything built on top of it. VALIDIO offers a next-generation data platform for data lakes, warehouses, and real-time streams, built to catch data quality issues before they propagate into downstream analytics and AI systems. The company has raised $46.4 million in total funding, with its most recent round closing in March 2026, as it expands its data quality platform across enterprise data teams. This was a brief overview of the Nordics' rapidly expanding AI scale-up landscape. If there is a company you think belongs on this list, reach out to our editorial team and we will make sure they are included on the next one. Need deeper intelligence on the AI Market? AI Insider's Market Intelligence platform tracks funding rounds, competitive landscapes, and technology trends across the global AI ecosystem in real time. Get the data and insights your organization needs to make informed decisions.

Invest Ottawa
Jul 27th, 2026
Kelluu Expands to Canada, Brings Persistent Airship Surveillance to the Arctic

Kelluu expands to Canada, brings persistent airship surveillance to the Arctic. Jul 27, 2026 FOR IMMEDIATE RELEASE - Ottawa, ON - July 27, 2026 - Kelluu, the Finnish company behind the world's largest autonomous airship fleet, is expanding into Canada. The new location is at Area X.O in Ottawa, Canada's national hub for defence innovation. It brings together world-class industry, government, the Canadian Armed Forces, and research institutions to accelerate the development and adoption of next-generation capabilities. "We are pleased to welcome Kelluu to Canada's defence and security ecosystem and look forward to strengthening collaboration between Canada and Finland as we advance innovation for Arctic security, resilience, and operational readiness," said Jens Michael Schaal, Vice President at Invest Ottawa. In a country where distances are vast and the climate is unforgiving, Kelluu's lighter-than-air technology is a natural fit. The company aims to advance Canadian Arctic autonomy with technology built and tested for cold conditions. "From day one, Invest Ottawa has made us feel welcome. Their expertise, local network, and hands-on support have been invaluable in getting Kelluu's Canadian operations off the ground," said Niko Kuikka, Kelluu's Head of Engineering. The expansion deepens the partnership between two Arctic nations. The move draws the countries' technology and defence ties closer together as both face new security challenges and Canada's role as a guardian of the Arctic grows. "Canada and Area X.O in Ottawa offer an ideal platform for growing a company like Kelluu. There's a ready-made ecosystem to step into here, and the right people to start building with quickly. Finland and Canada share a deep understanding of what it takes to operate in Arctic conditions. Our vision of persistent autonomy in Canada begins right here," said Janne Hietala, CEO of Kelluu. Canada is investing in security. At NATO's Hague summit, the country committed to raising its defence spending to five percent of GDP by 2035. Billions of that are earmarked for Arctic infrastructure and northern operations. Kelluu's technology has been tested in multiple NATO exercises. These have confirmed Kelluu's interoperability with NATO systems, its ability to build accurate situational awareness in GNSS-jammed areas, its operational capability in Arctic and highly demanding conditions, and functions such as serving as a mobile 5G base station. Kelluu was one of 15 companies selected from 2,600 applicants for the second phase of NATO's DIANA program, and is the only Finnish company funded by the NATO Innovation Fund. About Kelluu. Kelluu is a Finnish technology company that delivers persistent aerial autonomy as a service to customers in the defence, critical infrastructure and environmental sectors. It operates the world's largest fleet of autonomous airships and produces accurate real-time situational awareness and digital twins. The technology has been tested in Arctic conditions and in GNSS-denied environments. Randy Gaudreau Manager, Communications and Public Relations Invest Ottawa 613 828 6274 [email protected]

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