Only what you type into a form on this site. The project enquiry collects the area of interest, what you would like to improve, your name and email address, and optionally your company, website, timing and an indicative budget. The consultation request collects your name, email, context, and optionally company, time zone and preferred availability. The contact form collects a topic, your message, your name and email address.
Each submission also records the page it was sent from, the version of the consent wording you agreed to, a submission reference, and the time it was received. A hidden field is included to detect automated submissions.