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We build voice agents that make the calls healthcare can’t get to

HexAI was founded in 2025 by an NHS anaesthetist and a cybersecurity engineer. We started with missed appointments, and we are building towards clinical assessments by phone.

Why we exist

England’s hospitals recorded 113.2 million outpatient attendances in 2024/25. Behind every one is a person, and many of them are waiting on a phone call. We started HexAI to help make sure that call comes.

Source: NHS England, Hospital Outpatient Activity 2024–25.

  1. An older woman at her kitchen table holding the phone, an appointment letter beside her

    Our solution today

    Fewer missed appointments

    Our agents call patients ahead of their appointment, confirm they’re coming, ask why when they can’t, and rebook them in the same call. Anyone who misses the call gets a text with a way to call back.

  2. A pre-assessment nurse smiling at a completed record on her tablet

    On our roadmap

    Assessments by phone

    Pre-operative and airway assessments that a clinician writes once and the agent holds by phone, with the patient or with a parent for a child. The clinician reviews and decides.

  3. A father on the phone at the kitchen table while his daughter does her homework

    Further ahead

    Every specialty, every language

    One assessment engine any outpatient specialty can reuse, in more of the languages spoken in UK homes, so no patient is left out because of a form.

Illustrative images.

HexAI was founded in 2025 by an NHS anaesthetist and a cybersecurity engineer, to give clinical teams back the time routine calls take, and to reach patients that apps and web forms leave behind.

How every agent behaves

  • It says it is an AI

    Agents introduce themselves as an AI assistant calling on behalf of the patient’s hospital.

  • Patients are asked first

    No automated call is scheduled until a patient’s agreement to AI calls is on record, and they can withdraw it at any time.

  • Identity before a clinician’s message

    Before reading out a message from a clinician, the agent confirms it is speaking to the right patient.

  • Clinicians decide

    Anything clinical is passed to a clinician. The agent records what the patient said; people make the decisions.

  • Staff stay in control

    Authorised staff can end any live call with one click, and test mode rings your own team, never a patient.

  • Data where you choose

    UK Regional or UK + EU Regional processing, or the whole platform self-hosted inside your own estate.

Hear it for yourself, or talk to us about your pathway.

Try the agentContact us