About us

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.

2017

Founding year

13

Versatile experts

60+

Recovery projects

+139,5%

Turnover (2023)

WHAT DRIVES US

Wasting our waste

Humanity knows how to recycle – at least when it comes to solids.

Instead of collecting valuable materials from liquid waste, we are throwing them away.

WHAT MAKES US DIFFERENT

Next generation water treatment

We believe there is hidden, untapped value in industrial water processes. With right solutions wastewater could be utilized as an important source of raw materials.

We aim to act as pioneers of a closed material cycle – by providing solutions that enable raw material recovery.

Our history

Our story began from a cutting-edge research that led to the invention of 4D Scavenger®. Weeefiner was founded to drive the technology forward and to this day, it has already been applied for dozens of elements and various fields including mining, metallurgy, and process industries.


2017-2019

  • Weeefiner established
  • First patent applications

2020

  • First projects
  • Pre-seed funding from Unifund

2021

  • 1st external employee
  • On-site piloting started

2022

  • Collaboration with Andritz
  • Save the Baltic Sea Award
  • Seed funding from Midinvest

2023

  • Development project with Rio Tinto
  • Young Researcher Entrepreneur Award

2024

  • Launching On Demand concept
  • Eramet innovation challenge

Mikko Hänninen
CEO, Weeefiner
+358407053973

“It has been quite a journey from two-person company to a team of 13. Our strenght lies in our values: problem solving, innovation and responsibility.”

Elmeri Lahtinen
CTO, Weeefiner
+358407053973

“We immediately saw the potential of the 4D Scavenger technology and knew it could revolutionize the way water treatment has been seen to this day.”

Contact us