![Land Treatment Collective land treatment collective](https://www.lei.co.nz/images/custom/land_treatment_collective_logo.png) | NZ Land Treatment Collective |
![NZ Water & Wastes Association water & wastes](https://www.lei.co.nz/images/custom/water-nz-logo.jpg) | NZ Water and Wastes Association |
![Environmental Institute of Australia & NZ environmental institute](https://www.lei.co.nz/images/custom/eianz.jpg) | Environment Institue of Australia & New Zealand |
![NZ Agriculture & Horticultural Science ag & hort science](https://www.lei.co.nz/images/custom/hort__ag.png) | NZ Institute of Agricultural & Horticulture Sciences |
![](https://www.lei.co.nz/images/custom/nzsssrgb.jpg) | NZ Society of Soil Science |
![Water Environment Federation Water Environment Federation](https://www.lei.co.nz/images/custom/water_environment_fed.png) | Water Environment Federation |
![PMINZ](https://www.lei.co.nz/images/custom/pminz.png) | Project Management Institute New Zealand |
![](https://www.lei.co.nz/images/custom/engnz.jpg) | Engineering New Zealand |
| |