Biobased construction
also underground

Offset your carbon footprint with permanently removed CO₂ in Dutch construction projects.

Removed CO₂: 1,041 tonnes

Removal in the Netherlands 🇳🇱

Over 1500 years of evidence

Compensate your emissions Discover our method

Who are our credits for?

Climate-neutral construction: for businesses and developers

Whether you want to remove CO₂ or make construction more sustainable, we have the right approach.

Carbon credit buyers

Compensate emissions with Dutch removal credits

Projects realised in the Netherlands
Immediately available for spot purchases
Permanence of 100+ years guaranteed
Science-backed & certified

Compensate your emissions

Builders, developers and land-owners

Build biobased foundations together, become our partner

Replace concrete piles with biobased spruce logs
Carbon-negative foundation thanks to carbon credit revenue
Transparent reporting for clients
Custom solutions per project available

Discover our approach

Live impact dashboard

Carbon credits: real-time impact

Updated 2026

1,041

Credits realised

tonnes CO₂ removed

508

Credits for sale

available immediately

310

Credits sold

purchased by clients

9,000

Expected this year

new credits in 2026

1 carbon credit = 1 ton CO₂ permanently removed from the atmosphere for 100+ years

Why Underground Forest

How we help the construction sector work climate-neutrally

Six reasons why our approach is the most reliable choice for permanent CO₂ removal.

Projects realised in the Netherlands

Our projects take place on Dutch soil. Local impact, local transparency.

Available for spot purchases

Carbon credits available immediately. No waiting times, transparent pricing and flexible volumes.

Permanence 100+ years

Biobased foundation piles permanently remove carbon from the atmosphere deep below the water table. For over a thousand years, demonstrated by archaeological findings.

Scientifically founded

Every credit is based on peer-reviewed methodologies and independent verification.

Real-time MRV monitoring

Continuous monitoring, reporting and verification via satellite data and ground-water levels.

Internationally certified

Gold Standard and VCS certified for maximum credibility in the market.

Featured projects

Projects driving sustainable construction

View all projects

Naaldwijk, Zuid-Holland

Greenhouse complex on wooden foundation

Naaldwijk

A family built a complete greenhouse complex including access road and workspace on wooden piles.

284tCO₂ removed

ONCRA View

Haastrecht, Zuid-Holland

Agricultural road on wooden foundation

Haastrecht-Benschop

A farm had an access road built on a wooden foundation instead of concrete.

202tCO₂ removed

ONCRA View

Berkenwoude, Zuid-Holland

Trench silo on wooden foundation

Berkenwoude

A dairy farmer decided to build a new trench silo on a wooden foundation instead of concrete.

133tCO₂ removed

ONCRA View

Client testimonials

What do clients say after buying carbon credits?

Our clients choose certainty, transparency and long-term impact.

"Underground Forest helped us offset our CO₂ emissions in a transparent and scientifically grounded way. The quality of the credits and the local impact is exactly what we were looking for."

Sustainability Manager · Provincie in Nederland

"The permanence of 100+ years was decisive for us. Finally credits that truly mean something for future generations."

CEO · Non-profit

"Spot purchases with immediate delivery: that fits perfectly in our planning. Professional team, clear communication."

CFO · Bouwbedrijf