Forward Health has secured £3.8m funding.
The London HealthTech start-up will rebrand to Pando Health following investment from Australian venture capital firm Skip Capital.
Pando provides free technology for secure communication between NHS staff in more than 200 hospitals and has now raised a total of $8.9m.
It is the first European investment from the billion-dollar fund led by Atlassian co-founder Scott Farquhar and Kim Jackson.
Existing investors Stride.VC and Albion Capital also participated in the round.
“Pando combines everything we look for in a company; passionate founders solving a fundamental, global problem with a positive impact,” said Jackson.
“From our first meeting, I could tell the team was fiercely committed to making a difference, and we are excited to join the journey.
“Their success across the NHS shows how overdue a revolution in health and social care communication truly is and we’re looking forward to supporting them as they scale their impact internationally.”
Pando will launch in India, Canada and Australia imminently.
Co-chief executive and co-founder Philip Mundy added: “Skip Capital are a phenomenal partner, and we’re thrilled to have their backing and the continued support of Stride.VC as we push ahead with our growth plans.
“Skip understands not only what we’re building, but also why it’s so important. With this support, we have the resources to take our network to scale, while cementing our position within UK healthcare.”