Don’t wait weeks to get a GP appointment - Push Doctor lets patients see a GP on their smartphone, tablet or computer at a time and place to suit them.

They can get advice, prescriptions, sick notes and referral letters at the push of a button, with doctors available from 6am - 11pm, 365 days a year.

See more of our 51 Health Tech Pioneers here.

And check out our other lists, including Start-Up 101, Tech 1sts and 101 Female Founders.