ONEIA is a dynamic, member-run organization that helps Ontario’s environmental companies work together to develop business opportunities and create a legislative and policy environment that better supports their vital work.  Join the ranks of Ontario’s most progressive environmental companies today – join ONEIA today!

Join ONEIA online

Download a membership application form

Click here to read about the ONEIA membership benefits

Testimonials -  see what people are saying about ONEIA

What does ONEIA membership cost? 

ONEIA membership fees are determined by the number of people who work for your firm.  For as little as $425 your company can benefit from plugging into ONEIA’s networks and our proactive marketing efforts on your behalf.

Number Of Employees Type of Membership
Annual fee (plus applicable taxes)
1 to 5 employees Small $425.00 + $55.25 HST = $480.25
5 to 24 employees Medium $890.00 + $115.70 HST = $1,005.70
25 or more employees Large $1,750.00 + $227.50 HST = $1,977.50
100 or more employees
Enterprise $2,850.00 + $370.50 HST = $3,220.50
Association/government agency Association $425.00 + $55.25 HST = $480.25
Single person company Single person $249.00 + $32.37 HST = $281.37

ONEIA encourages students to be part of the Association and to participate on one of our committees.  If you are interested in joining ONEIA and are currently enrolled in a college or university program (proof must be submitted together with your membership application) please send the completed student membership application form together with a copy of your student card to info[at]  The office will then contact you to complete the payment of $47.50 + HST.


Ontario Environment Industry Association (ONEIA)
192 Spadina Avenue, Suite 306, Toronto, Ontario, Canada, M5T 2C2
Tel: 416-531-7884    Email: info[at]


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