Founded in 1997.
Rebuilt for what comes next.
Three generations. Two exits. One infrastructure platform.
Graymark was founded by Graham and Mark Vinsen in Auckland, New Zealand. For nearly three decades, the family has built, operated, and exited hazardous waste recovery businesses.
That operating history is the foundation. Every system we build, every process we design, and every deployment we run is informed by tens of thousands of hours working inside the waste streams we now recover.
In 2025, Graymark launched its first Regen unit — a containerised chemical recovery engine that does what no prior system in this market has done: process hazardous waste on-site and return recovered feedstock to industry. The technology is new. The knowledge behind it is not.
Graymark was founded by Graham and Mark Vinsen in Auckland, New Zealand. For nearly three decades, the family has built, operated, and exited hazardous waste recovery businesses.
That operating history is the foundation. Every system we build, every process we design, and every deployment we run is informed by tens of thousands of hours working inside the waste streams we now recover.
In 2025, Graymark launched its first Regen unit — a containerised chemical recovery engine that does what no prior system in this market has done: process hazardous waste on-site and return recovered feedstock to industry. The technology is new. The knowledge behind it is not.
Graymark was founded by Graham and Mark Vinsen in Auckland, New Zealand. For nearly three decades, the family has built, operated, and exited hazardous waste recovery businesses.
That operating history is the foundation. Every system we build, every process we design, and every deployment we run is informed by tens of thousands of hours working inside the waste streams we now recover.
In 2025, Graymark launched its first Regen unit — a containerised chemical recovery engine that does what no prior system in this market has done: process hazardous waste on-site and return recovered feedstock to industry. The technology is new. The knowledge behind it is not.
Leadership
Mark Vinsen
Co-Founder & CEO
Mark Vinsen
Co-Founder & CEO
Mark Vinsen
Co-Founder & CEO
Three decades building and exiting hazardous waste and recovery businesses. Co-founder of Medi-Chem (acquired by Transpacific Industries, ASX) and HazWaste (exited to EnviroNZ). Designed and operated multiple engineered recovery systems and large-scale environmental remediation projects. Mark has worked at every layer of the waste lifecycle — from hands-on chemical processing to strategic exits.
Three decades building and exiting hazardous waste and recovery businesses. Co-founder of Medi-Chem (acquired by Transpacific Industries, ASX) and HazWaste (exited to EnviroNZ). Designed and operated multiple engineered recovery systems and large-scale environmental remediation projects. Mark has worked at every layer of the waste lifecycle — from hands-on chemical processing to strategic exits.
Rees Vinsen
Co-Founder & COO
Rees Vinsen
Co-Founder & COO
Rees Vinsen
Co-Founder & COO
Fifteen years operating inside high-growth companies and category-leading brands across New Zealand and the United States. Led strategy, growth, and go-to-market for ventures across deep tech, consumer, and industrial sectors. Built and advised award-winning agencies and enterprise brands on compounding growth systems.
Fifteen years operating inside high-growth companies and category-leading brands across New Zealand and the United States. Led strategy, growth, and go-to-market for ventures across deep tech, consumer, and industrial sectors. Built and advised award-winning agencies and enterprise brands on compounding growth systems.
Approach
Product company. Not a services company.
Product company. Not a services company.
Product company. Not a services company.
Graymark funds its own R&D and delivers finished, operational systems. We identify waste streams that have recoverable value, build the machines to extract it, and deploy them into industry.
Every platform is designed for containerised deployment, multi-stream processing, and rapid iteration. A new waste stream goes from characterisation to live processing in weeks. A new site goes from assessment to deployed unit in days.
We control the full stack — chemistry, hardware, controls, deployment, operations. No subcontractors on the core process. No dependency on third-party IP.
Graymark funds its own R&D and delivers finished, operational systems. We identify waste streams that have recoverable value, build the machines to extract it, and deploy them into industry.
Every platform is designed for containerised deployment, multi-stream processing, and rapid iteration. A new waste stream goes from characterisation to live processing in weeks. A new site goes from assessment to deployed unit in days.
We control the full stack — chemistry, hardware, controls, deployment, operations. No subcontractors on the core process. No dependency on third-party IP.
Operations
From Nelson NZ to the World.
From Nelson NZ to the World.
From Nelson NZ to the World.
Graymark's R&D and central processing facility operates from Nelson, at the heart of New Zealand's forestry and primary industry corridor. Deployed units are shipped to customer and project sites across the country.
The waste streams we target — timber treatment chemicals, contaminated soil, industrial solvents, process residues, metal fractions — exist at scale in every country with primary industry. The platform architecture is designed to lift and shift internationally.
Graymark's R&D and central processing facility operates from Nelson, at the heart of New Zealand's forestry and primary industry corridor. Deployed units are shipped to customer and project sites across the country.
The waste streams we target — timber treatment chemicals, contaminated soil, industrial solvents, process residues, metal fractions — exist at scale in every country with primary industry. The platform architecture is designed to lift and shift internationally.
