I have occasionally provided maths tuition services, when I have spare capacity in my publishing commitments. This has been a welcome though tentative return to my teaching career of over 20 years ago. I only provide limited services at present, though I may expand this aspect of my offerings in due course.
I can teach all areas of secondary maths, from age 11 up to 18.
Here is a link to the Air Maths Tuition website, who I was working for a while ago:
I have also provided consultation services to a startup company called ExamSolutions, which has thousands of tuition-based resources to support students taking their GCSE and A level maths. These resources are primarily in the form of worked solutions, videos and past papers, all designed to instil students with confidence as they prepare for their exams.
Here is a link to the ExamSolutions website: