About us

Green Plumbers is a global brand formed by the Master Plumbers & Mechanical Services Association (MPMSAA) in Australia in 2000, as a result of the severe drought that continues in that country today. The Green Plumbers curriculum was developed in conjunction with RMIT University (Melbourne) and the Australian Greenhouse Gas Office.

Onni, Inc dba Green Plumbers USA is the contractual arm of Green Invest and MPMSAA in the United States, Canada and Mexico. Onni, Inc was founded in 1999 by Stephen and Megan Lehtonen primarily as a management consulting company specializing in construction claims administration. The principal of Onni, Inc is:
Stephen Lehtonen, Chairman/CEO

Stephen Lehtonen, Chairman/CEO

In addition to his role as CEO of Onni, Inc, Steve has been a plumbing industry leader for more than 30 years as an association executive, educator and lobbyist. He is currently CEO of Trade Select, an insurance management company. He is past president of the Construction Industry Legislative Conference and the Association Executives Council, and served as the first public member in history of the California Workers Compensation Inspections Rating Bureau.
B.A. History, University of California at Riverside 1972

More on Green Plumbers

Green Plumbers is one of the Green Invest Group of companies. Green Invest is a publicly listed Australian Company on the Australian stock exchange (GNV).  Green Invest has the vision of developing the world’s leading environmental services and commodities company.

Green Invest Group of companies provide fully integrated sustainable environmental solutions ranging through:

  • Carbon emission trading;
  • Energy, water and transport audits and assessments;
  • Training and education services to individuals businesses, organizations and community groups;
  • Supply and installation/implementation of green technologies; and
  • Implementing carbon offset programs and recommending energy efficiency initiatives.

 

In 2000, the Master Plumbers and Mechanical Services Association of Australia (MPMSAA) identified the need to train Australia’s plumbers in green technologies to combat the effects of climate change. The Green Plumbers program was established and is now recognized internationally as being at the forefront of training and the installation of water and energy saving products.  In 2008 the commercial arm of Green Plumbers was acquired by Green Invest Ltd. GreenPlumbers environmental training and licensing is now being implemented in Australia, the USA, Canada, India, China, and New Zealand.