Doximity

Doximity operates the largest professional medical network in the United States. Founded in 2010, the company runs a secure, HIPAA-compliant platform used by more than 3m healthcare professionals, including over 80% of American doctors and roughly half of all nurse practitioners and physician assistants. Clinicians use it to connect with colleagues, coordinate care, fax patient records and conduct telehealth visits from mobile devices.

Alongside the core network, Doximity builds a set of specialist tools. Dialer allows clinicians to call patients from their own phones without revealing their numbers. DoxGPT provides clinical intelligence at the point of care. The company also publishes Physician Compensation Reports, an industry-leading reference on physician pay, and offers Residency Navigator, which helps medical students evaluate residency programmes. The work spans mobile technology, secure communications, telehealth, fax and messaging infrastructure, clinical AI and healthcare data and analytics.

The company's stated mission is to put doctors back at the centre of medicine. It describes its products as simple, powerful tools intended to reduce clinician burden and improve productivity, and says its team includes health tech leaders from Stanford, UCSF and Cleveland Clinic. Operations are concentrated in the United States.