Graymark recovers what industry buries.
New Zealand can keep exporting its waste problem, or build the systems to recover it here. We choose to build.
Modular capital first.
Containerised systems sized to the stream. Deployable in days, relocatable if the economics shift, repeatable as demand grows.
Deploy at the point of generation.
Trucking hazardous waste is expensive, carbon intensive and fragile. Our systems go to the waste, not the other way around.
Commercially viable without subsidy.
If a recovery system only works with grants and credits, it does not work. Levies and credits are tailwinds, not foundations.
Product company. Not a services company.
We build finished systems
Regen is designed, built and run by us. No subcontractors on the core process.
Every job improves the next
Operating data from each deployment goes back into Regen.
Verified or not finished
Every job ends with an independent laboratory report.
New Zealand first
Built in Nelson, deployed anywhere in the country. Export follows.
1997
Founded in Auckland
As the research arm of Medi-Chem.
3
Generations in hazardous waste
The family business, still.
2
Businesses built and sold
Both to listed operators.
2025
Regen commercial
Live in Nelson since October.
Two businesses built and sold. A third built to last.
Graymark is a family company. We have built two hazardous waste businesses and sold both to listed operators. We know what gets buried, where, and what it costs to dig it back up. Regen exists because the infrastructure didn’t.
The people behind it.
Mark Vinsen
Co-founder and CEO
Rees Vinsen
Co-founder and COO










