About Us

Undaunted by what is perceived as impossible, we invest in creating world-leading biosecurity solutions.

Proudly Kiwi-owned since 1975, we’ve always valued innovation, technology and integrity.

Mark Greenwood
Employee on berth
Genera is an international provider of biosecurity treatments

Our Story


Established in 1975 by Mark Greenwood, the Genera Group is still 100 per cent Kiwi-owned. Mark was subsequently awarded a New Zealand Order of Merit for services to biosecurity in 2016. We have always valued innovation, which is why the Genera Group focuses on research and development of alternative solutions to meet the ever-changing demands of clients, regulators and environmental bodies. Our team of dedicated research scientists are constantly testing new fumigant

recapture and alternative treatment technology options.


  • Ministry of Primary Industries accredited
  • ISPM15 accredited
  • Sole New Zealand member of International Maritime Fumigation Organisation
  • Founding member of Stakeholders in Methyl Bromide Reduction group (STIMBR) now known as PHYTOS
  • Member of Pest Management Association of New Zealand



Science and Innovation


While existing techniques may get the job done now, we believe that investment in improvement is always worthwhile.


We unashamedly seek out the best solution for the most competitive price. Our international presence gives us access to the best technology. However, if we cannot find the best solution for your needs, we will do our best to invent it.

GSI coil
Employee on berth