Pay / Renew Membership

We are using an online payment system so you can pay for your membership online with your credit or debit card – payments are processed using Stripe. Your card details are encrypted and processed by Stripe – they are not seen, or stored, by ISTI.
If you are making a delayed payment for 2020 please click here

To avoid issues with spam filters – please add to your email address book so that your future renewal reminders are received.

Please select your client base below to ensure that you display in the correct section of the directory.


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