A carbon sink is anything that absorbs more carbon from the atmosphere than it releases – for example, plants, the ocean and soil. In contrast, a carbon source is anything that releases more carbon into the atmosphere than it absorbs – for example, the burning of fossil fuels or volcanic eruptions.

“Just a short note” video is the first instalment in our series of shorts inspired by a climate change.
This publication is coinciding with the COP26 climate summit in Glasgow.


Forests are currently a net carbon sink because they take in more carbon dioxide than they emit.
The capacity of European forests to absorb CO2 has been shrinking over the years by further increases in harvesting and negative impacts from natural hazards such as fires and pests. We work with forest owners around the world to restore and keep forest healthy and we also help them to gain more visibility by connecting them with companies and individuals who want to buy the carbon they capture to compensate their carbon footprint in the greenest possible way.
We secure the transparency and the reliability of this process, combining our expertise about forest with cutting edge blockchain technologies.


Our core business is the forest.
We are passionate about nature and our day passes between pine trees, spruces and birch.
We are also forest owner and we build carbon sinks - targeted to maximum growth. We are highly experienced in the forest industry, including software and machinery. We are scanning existing forests and we are capable to provide exact data to land owner of the growth and volume, tree by tree in order to calculate carbon captured.


We create healthy forests with the highest target sink rates.

We use cutting edge forest technology that allows us to have very detailed and reliable data about the forest.

We collect data and certify it by using blockchain, adding transparency and reliability to the traceability process. 

Through our unique platform, forest owners can connect with companies and individuals who are interested in generating forests or purchasing CO2 captured.
All the data about the specific trees is certified with blockchain and different data like GPS location of the trees, CO2 captured, date of planting, etc.


We integrate a Climate-Smart forestry approach into our practices.
This approach has two mutually reinforcing components:
• Increasing forest carbon sink, in conjunction with conserving biodiversity.
• Enhancing the forest health and resilience through adaptative carbon farming.

Carbon farming, unlike business-as-usual forestry, is a green business model that rewards forest owners for taking up Climate-Smart forestry practices.

The following are examples of Climate-Smart forestry practices for an effective carbon farming:
• Afforestation and reforestation that respect ecological principles favorable to biodiversity.
• Restoration of peatlands and wetlands that reduces oxidation of the existing carbon stock and increases the potential for carbon sequestration.
• Restoration of forest lands that have low productivity or poor biodiversity by thinning and removing low-vigor and deteriorating trees, thus providing the light and space required to grow larger, healthier trees.


Blockchain is, in a nutshell, an encrypted, distributed database.
Every transaction is recorded in a totally unalterable way. The blockchain nodes are in charge of validating and recording transactions by strict consensus, so that a majority can discard any manipulation attempt. Currently, it is being used in sectors such as banking, insurance, health or the aerospace industry, among others. Mayor advantages offered by blockchain technology are: verified transactions, transparency and timestamp of events.


The basic idea behind our Zerti Carbon App is to provide a comprehensive service of connecting forest owners with clients in need of carbon sink solutions based on blockchain platform. As blockchain itself, our App is safe and fully transparent - our clients have access to every step of the process - from locating the actual forests to adquiring their NFTs and CO2 tokens (ZCO2). In addition to that, we provide the extensive information about the forest ownership and the value of ZCO2 based on a very precise mathematic formulas that are related to the GPS information of every single tree and its capacity to capture CO2.

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Available forests areas

A single forest information

Marketplace for carbon offset tokens, ZCO2


Finland · Spain · Canada



ZertiFOREST OY is a company located in Mikkeli (Finland), but operates around Europe and offers tailor made forest services to meet customer needs. The company was founded by young forest owners that have come together targeting to develop carbon sinks by planting trees especially to the places where the forest does not exist, using its own machinery – effective thinning and modern forestry while minimizing environmental impact. With its modern equipment for planting, ZertiFOREST can do mounding, fertilizing, planting at the same time and we get time stamp + very precise location information of each tree. ZertiFOREST and his young team, with its very wide level of knowledge about forest management, are doing real things to protect our planet.


Zertifier is a company based in Cornellá de Terri (Girona/Spain) with team members also in Canada, with a long experience implementing blockchain based business solutions in different countries around the world. Zertifier combines the power of IOT, blockchain and smart contracts and provides complete, immutable and automated solutions, including product traceability, anticounterfeit, documents certification, secure data transfer, NFT´s and tokenization, bridging physical and digital worlds.


Risutec is our technological partner and advisor.
They are experts in new forest creation with the highest survival rates and transparency.
Their mechanical way of planting is a highly innovative, effective, and fast way of achieving new, well-growing forest. With the use of GPS technology with a tree location accuracy of up to 2cm, you can be sure where your trees exactly are, providing the ultimate transparency required for carbon sinks.


We are real people doing real things to fight against climate change.
If you want to join us, planting trees or improving your CO2 capture efficiency, and make some real impact, contact us...

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