Corporate Member

Corporate Members

This membership grade is available as an upgrade level or for new members. It is awarded on the basis of competence and commitment demonstrated through length of service in the UK water sector. 

There are no academic qualifications required. Successful applicants will be eligible to use the post nominals MIWater.

A Corporate Member of the Institute of Water is a team player who is competent in their area of work, reliable, informed, motivated and committed to the water industry and its customers.  Applicants are expected to have acquired these attributes through a combination of knowledge and experience. 

At this membership grade, you can benefit from second membership with Institution of Civil Engineers (ICE) at a competitive rate.

For existing Institute of Water members 

If you are already a member of the Institute of Water and wish to upgrade to Corporate Member, we will only need you to send a copy of your CV and a completed and signed Corporate Referee Form.

Please email these with your request to upgrade to 

If you are joining the Institute of Water 


If you are not currently a member of the Institute of Water and want to join as a Corporate Member, we will need you to: 


All Corporate Members are expected to be committed to Continuing Professional Development (CPD) and must adhere to our Code of Conduct. 


If you already hold Corporate or ‘Full’ Membership with another professional body then you may be exempt from this process. Please complete the Online Application Form and upload your proof of Corporate/Full Membership with another professional body.