Photonics Joensuu is an internationally recognized hub for photonics research, education, innovation and business development in Joensuu. Leading companies, research organizations, universities and technology experts form a dynamic ecosystem where innovations grow into scalable business, industrial investments and international partnerships.
Joensuu’s strong photonics ecosystem supports business growth, international expansion and the development of sustainable future technologies and solutions.
Follow Photonics Joensuu on LinkedIn:
Photonics Joensuu offers companies access to one of Europe’s strongest photonics innovation ecosystems, where research, education, technology and business come together. Joensuu is Finland’s leading city for photonics research and education, and an internationally connected hub of expertise where companies collaborate closely with research organisations and top-level specialists.
The region is home to the University of Eastern Finland’s Center for Photonics Sciences and the Photonics Center, providing companies with shared facilities, cleanrooms, advanced equipment, expert services and product development environments under one roof. This enables faster prototyping, more efficient R&D and a shorter path from innovation to market.
The Photonics Joensuu network connects skilled talent, international partnerships and world-class research infrastructure in an ecosystem focused on developing next-generation solutions in optics, micro- and nanophotonics, sensor technology and imaging.
For companies, Photonics Joensuu means direct access to a growing photonics ecosystem, international networks and cutting-edge technology expertise that accelerate innovation, investment and global business growth. Technologies developed in Joensuu are shaping the future of industries ranging from advanced manufacturing and health technology to security and smart sensing solutions.
-
Finland’s largest photonics research centre with 150 employees and 25 professors
-
Over 55 years of expertise in optics research, with leading know-how in micro- and nanophotonics and hyperspectral imaging
-
Internationally recognised high-level research, technology expertise and innovation
Joensuu is Finland’s leading city for photonics education. The University of Eastern Finland offers the country’s only Master’s-level degree programme in photonics engineering, with more than 120 students working closely with industry partners.
The precision engineering laboratory at Karelia University of Applied Sciences develops optical, mechanical and biomedical components for research and industrial applications together with Finnish and international companies.
Riveria provides training for laboratory and cleanroom professionals and offers tailored workforce training programmes for companies.
- Internationally recognised growth companies such as Nanocomp, Dispelix, Kelluu, Chipmetrics and Ecoaims
- Research services and product development environments supporting innovation and commercialisation
- Business Joensuu supports companies with investments, business development, networking and talent recruitment
The GreenPark business park in Kuhasalo, Joensuu, is a hub for photonics manufacturing and technology companies. GreenPark provides tailored facilities and industrial plots for photonics and photonics-enabled businesses, accelerating product development, commercialisation and international growth in optical technologies.
- Shared high-end equipment for meta-optics, precision engineering and hyperspectral imaging
- Strategic location close to leading research organisations and industrial partners
- Direct access to the international Photonics Joensuu ecosystem
- Flexible plots and turnkey construction solutions for different business needs
- Investment and relocation services from Business Joensuu to support your company’s growth
Explore GreenPark Photonics Hub – a dynamic environment for photonics innovation, manufacturing and international investment:
Business Joensuu
Business Joensuu helps photonics companies identify the best opportunities for growth and investment in the Joensuu region. We support companies with business relocation, partner networks, investment opportunities, research collaboration and access to funding. In Joensuu, your company becomes part of an internationally recognised photonics ecosystem that combines world-class research, skilled talent and modern development and pilot environments.
University of Eastern Finland UEF
The University of Eastern Finland (UEF) is one of Finland’s most multidisciplinary universities and an internationally recognised centre of photonics expertise — as well as Finland’s largest provider of photonics education. UEF’s Center for Photonics Sciences brings together all photonics and optics research and education at the university, covering everything from fundamental science to applied research and commercialisation.
Its multidisciplinary research environment combines expertise in physics and applied physics with fields such as forest sciences, chemistry, biology, computer science and imaging technologies. Photonics is an enabling science and technology with applications across healthcare, environmental solutions, industry and the forest bioeconomy.
Joensuu’s strong position in photonics is built on more than half a century of continuous research and education. Today, the Center for Photonics Sciences offers an internationally competitive innovation environment where education, research and business collaboration come together.
Karelia University of Applied Sciences
The precision engineering product development environment at Karelia University of Applied Sciences provides advanced equipment for prototyping and small-scale production of high-precision plastic and metal components with demanding surface quality requirements.The facilities are used to manufacture equipment structures, optical moulds, precision mechanical parts and 3D-printed components for industrial and research applications.
Karelia also supports companies with product development and R&D services through environments such as the Ultra Precision Unit nanomachining platform.
City of Joensuu
The City of Joensuu actively supports the development of the regional photonics ecosystem through strategic cooperation, advocacy and urban planning. Photonics is also visible throughout the city through smart lighting solutions, light art and public events. The city can also provide access to forests, urban infrastructure and buildings for photonics research, development and innovation activities when needed.
Photonics Center community
Photonics Center is an open and collaborative community for companies, researchers and experts working in photonics. For businesses, it offers direct access to specialists, research groups and laboratories, as well as opportunities to co-develop and test new technologies with research partners. In practice, this enables cost-effective prototyping, pilot projects and faster commercialisation of innovations. The community also actively supports technology transfer, commercialisation and national and international collaboration.
Photonics Finland
The headquarters of Photonics Finland, the national organisation promoting Finland’s photonics industry and research, is located in Joensuu. Photonics Finland connects photonics companies, universities, research institutes and public organisations, providing the Photonics Joensuu ecosystem with direct access to national and international networks and cooperation opportunities.
Riveria
PREIN Flagship
The University of Eastern Finland is one of the four Finnish universities participating in the PREIN Flagship — Finland’s leading photonics research and innovation programme funded by the Academy of Finland. The programme supports high-impact research with strong societal relevance and commercial potential. PREIN has been running from 2019 to 2026, with an extension of the funding is currently under application.

Jyrki Saarinen
Head of the Center for Photonics Sciences, University of Eastern Finland

Juha Purmonen
Executive Director, Photonics Finland

Leena Lehikoinen
Development Manager, Photonics investments, Business Joensuu

Juha Väyrynen
Project Manager and Precision Technology Professional, Karelia University of Applied Sciences

Pasi Vahimaa
Professor of Theoretical Optics, University of Eastern Finland

Kari Kola
Light Artist and Entrepreneur

Andreas Norrman
Associate Professor and a Leading Researcher, University of Eastern Finland
Latest News
-
25.06.2026 • Tourism industryFinnish Forestry Expertise Attracts Global Interest – Canada's Ken Day Returns for His Third Study Tour
Finland continues to attract a steady stream of international forestry professionals eager to learn from the country's world-leading expertise. During the past two years alone, approximately 300... -
27.04.2026 • Photonics industryStartup Afterwork launches in Joensuu – low-threshold meetups for the startup-minded
A new event series, Startup Afterwork, is launching in Joensuu, bringing together startup founders, aspiring entrepreneurs, students, and anyone interested in the startup world on a monthly basis. -
10.04.2026 • Photonics industryApply for NATO C-UAS testing – direct access to international partners
Technology companies, startups and defence industry actors now have the opportunity to participate in NATO operational testing as applications are open for the Layered Counter-UAS Initiative (LCI-X)... -
09.04.2026 • Photonics industryJoensuu impresses international security technology leaders – Borderland Europe advances toward NATO-level testing
A group of international experts in surveillance and security technology visited the Joensuu region in mid-March to explore its testing and piloting capabilities and to plan upcoming testing... -
31.03.2026 • Business Joensuu newsSOHJO 2026: The “Texas of Finland” Emerges from the Fusion of Energy, Industry and New Technology
Is Eastern Finland like Texas in the United States – a frontier region where strong industry, the energy sector and rapidly growing technology meet? This is a place where globally significant... -
27.03.2026 • Business Joensuu newsUniversity laboratories finally open to companies – “a dream come true,” says startup veteran
Millions have been invested in university equipment, and now the goal is to generate value by opening these laboratories to companies, says the organizer of the SOHJO Hackathon, which focuses on... -
10.03.2026 • Business Joensuu newsNasdaq’s Closing Bell rings in Joensuu – SOHJO brings startups, companies, investors and growth markets together
The glow of growth shines from Joensuu to the world at SOHJO Business Event, where the rarely seen Nasdaq Closing Bell ceremony will take place as part of the program. The event features Slush... -
05.02.2026 • Business Joensuu newsSign up for SOHJO Hacks – University R&D Labs Open to Companies for the First Time
Registration is now open for SOHJO Hacks, an international hackathon bringing together companies, researchers, startups, and student teams to co-create solutions for future challenges. Sohjo Hacks... -
11.08.2025 • Forest JoensuuFinland is number one in forest artificial intelligence and Joensuu is its lodestar
Artificial intelligence expertise in forests is world-class in Joensuu. Finland is the only country in the world whose forests have been mapped down to every single tree, stump and stem. When there... -
21.11.2024 • Photonics industryThe Eastern Finland BORDERLAND event brought together investors, companies, and experts interested in border security and dual-use technologies in Helsinki
Eastern Finland plays a key role in the evolving geopolitical landscape. The "BORDERLAND - Securing the Future" event, held in Helsinki ahead of Slush Week, was an excellent demonstration of both the... -
01.11.2024 • Photonics industryPhotonics Joensuu awarded in business and community communications at the Finnish Comms Awards
The Finnish Comms Awards, held at the Clarion Hotel in Helsinki on Thursday, October 31, 2024, recognized impactful communication campaigns and initiatives. Photonics Joensuu was nominated in the... -
24.05.2024 • Photonics industryPhotonics Company Entangly Expands to Joensuu: "Targeted Solutions for the Needs of Finnish Industry"
Joensuu's position as one of Europe's leading centers of expertise in photonics and optics was further strengthened when the Swedish company Entangly expanded its operations to the region.
Upcoming Events
![]() |
![]() |
Sign up for our free newsletters
Leena Lehikoinen Development Manager
Photonics investments, services for investing and relocating companies, plots and premises

