Attitude (Canada / Worldwide)
Window & Mirror, Bathroom, and Daily Shower Cleaners — all free from all isothiazolinones. See their site here, or via Amazon US here.
In the UK, you can buy a selection of products from Big Green Smile.
Bio-D (UK)
Their toilet cleaner, in various sizes. Ingredients seem to be straightforward and natural — acids, coconut oil detergents, vegetable derivatives and lemongrass.
Eco Me (US)
They have a Herbal Mint Toilet Bowl Cleaner.
Ecostore (Australia / New Zealand)
Scourers, bath and shower cleaners, a toilet cleaner. To shop in Australia, click here, and New Zealand, click here.
Greenshield Organic (US)
Their Bergamot Mint Bathroom Cleaner contains almost entirely organic ingredients — citric acid, l-malic acid, soybean oil, fragrance, acetic acid, soap bark, glycerin and water.
Humblestuff (UK)
Toilet Freshener — uses only bicarbonate of soda, citric acid and essential oils — a Multi Surface Spray for bathroom (and kitchen) surfaces — with only castille soap and essential oils (fragrance free available) — and a Soft Cleaning Paste, which is also multi-purpose, but can be used in the bathroom as well as elsewhere, and which contains bicarbonate of soda, castille soap and essential oils.
Resparkle (Australia)
Bathroom and glass cleaner.
Violet’s (UK)
Toilet Cleaner, bleach and descaler in the Violet’s brand by Northumbrian Botanicals. Click here.