Our Story
Weeefiner
Weeefiner is a Finnish technology pioneer specializing in innovative water treatment and material recovery solutions. Our goal is to challenge the status quo of water treatment by introducing groundbreaking, sustainable solutions for industrial water challenges.
THE OPPORTUNITY
Underutilized resource
💲 BILLION DOLLAR INDUSTRY
As environmental regulations tighten, industries spend billions removing dissolved metals from wastewater.
💧 VALUABLE METALS LOST TO SLUDGE
Conventional water treatment produces multi-metal sludge that is costly to dispose of, and the valuable metals in it are lost.
⛏ RISING DEMAND FOR METAL RECOVERY
With the green tansition and AI-driven data center growth driving up demand for metals, recovering value from side streams is more attractive than ever.
LEAVE NOTHING BEHIND
Future where resources are not wasted
We help to transform low-value and demanding waste streams into valuable resources. With selective recovery the valuable natural resources, metals, nutrients and water, can be returned to circulation.
Our mission is to make selective recovery the new industrial standard and offer next-generation solutions for industrial water challenges.
The Sustainable Development Goals we are committed to:
OUR EFFECT
Answering the World’s Growing Need for Raw Materials
Helping the Industry Create Truly Circular Value Chains
Reducing Chemical and Metal Pollution
Enhancing water circulation in industrial processes
Our History
Weeefiner was born out of cutting-edge chemistry research that added a fourth, chemical dimension to 3D-printed units. Today, our 4DS™ innovation is already in industrial use, turning streams once seen as waste into value.
2026
- We increased our technology’s use capacity 10x.
- The received the Nordic Innovation Award.
- We succeeded in LANDCROS Mining Challenge.
- We scaled the production capacity.
- The first long-term service-deal was signed.
2025
- We delivered first fully 4DS™ based industrial-scale system to customer.
- Weeefiner as one of the leading solutions in Uplink’s Mining the Unmined challenge.
- We received Resource Recovery New Business Award from the International Water Association.
- Weeefiner’s solutions were incorporated into HYXO’s product portfolio.
- We achieved 17th place in Deloitte 50 technology Finland -list.
- EIT RawMaterials invested in Weeefiner’s development.
2024
- Weeefiner won mining company Eramet’s water resource innovation challenge.
- We participated in major public project, including iMERMAID and Remhub, and BatCircle3.0.
- Our nutrient recovery solution was piloted at recirculating aquaculture system.
2023
- W started evelopment project with Rio Tinto mining group as part of their international Sustainable Water Treatment challenge.
- Our management team received Young Researcher Entrepreneur Award.
- We moved to new facilities in Jyväskylä’s Eteläportti to meet the growing need for production space.
2022
- Weeeefiner signed a partnership agreement with Andritz.
- We received ‘Save the Baltic Sea’ award.
- Midinvest made an equity investment to accelerate our growth.
- First full-scale equipment delivery for storm water treatment.
2021
- First recruitment completed.
- Pilot tests at customer sites commenced.
- Mikko Hänninen appointed as CEO.
- Technology ready for commercialization and industrial deployment.
2020
- The company’s operational activities commenced.
- First customer trials were initiated.
- Seed funding from Unifund Oy and Hanki Development.
2017-2019
- Spinout from the University of Jyväskylä.
- Weeefiner Oy was founded in 2017 to advance the 4D Scavenger® technology.
- The technology was developed alongside academic research.
- Early patent applications were filed.
Awards & Recognitions
Proud Member
Mikko Hänninen
CEO, Weeefiner
+358 407053973
“At Weeefiner, deep expertise and cutting-edge innovation come together with a shared passion for building a sustainable future.”
Elmeri Lahtinen
CTO, Weeefiner
+358 405592666
“We knew right away that 4DS™ technology has enormous potential. It doesn’t just expand what’s possible in water treatment. It changes how the entire industry works.”
Partner with Weeefiner
Join us in making selective recovery the new industrial standard.