Clinicians invited to invest in Heidi as Series B raises USD $65m

Archangel Ventures has announced it is leading a community funding round for Heidi, an artificial intelligence care partner developed for clinicians, allowing eligible Australian clinicians to invest in the technology.

The investment opportunity forms part of Heidi's USD $65 million Series B funding round, which was led by Point72 Private Investments and included continued backing from Blackbird, Headline, and Latitude, the growth fund of Phoenix Court. This latest investment round valued Heidi at USD $465 million and brings its total funding to nearly USD $100 million.

Participation through Archangel Ventures is open exclusively to Heidi's Australian customers who qualify as sophisticated or professional investors under Australian law. The offer specifically excludes retail investors and those who do not meet the requisite eligibility criteria.

Clinician participation

This allocation will permit clinicians who use Heidi in their daily practice to become shareholders, a move the company says aligns investment with those most closely involved with the product. Allocations of this nature are relatively uncommon in Australia, especially in high-growth startups, but reflect growing interest from individual sophisticated investors in the local venture market.

Ben Armstrong, Managing Partner at Archangel Ventures, explained the rationale behind the community round.

"Heidi's success to date comes from a deep understanding of the clinicians they serve. It's a powerful example of when technology is built with healthcare professionals, not just for them. This is a rare opportunity for clinicians to become part-owners in one of the world's fastest-growing AI companies tackling a real, pressing problem."

Heidi's clinical foundations

Heidi was founded by clinicians and maintains a strong connection to healthcare professionals in both leadership and product development capacities. Approximately 10% of its team are practising clinicians, contributing real-world insight to product decisions. The company operates Heidi Labs, an initiative which sees clinicians test new features and provide early feedback prior to wider release.

Dr Thomas Kelly, CEO and co-founder of Heidi, said that the opening of investment to sophisticated clinician users is a natural progression of the company's collaborative philosophy.

"From day one, clinicians have guided every part of Heidi's design and direction. This round is about deepening that relationship, and gives clinicians the chance to not only use Heidi, but to help build what comes next as owners. It's another way we're making sure Heidi always serves the people who deliver care."

Usage and adoption

Heidi's adoption has accelerated since its launch, with the AI platform having supported 73 million patient consults and returning over 18 million hours to frontline clinicians by automating tasks such as clinical documentation, evidence search, and patient follow-up communications. These efficiency gains have benefitted clinicians across 200 medical specialties and 116 countries. The platform now processes in excess of two million consults weekly.

The company attributes much of its expansion to strategic partnerships with major healthcare providers globally. Notable collaborators include the NHS in the UK, Beth Israel Lahey Health and MaineGeneral in the United States, Monash Health and Queensland Health in Australia, and the Yukon Government in Canada.

Investment process

The minimum investment to participate in this allocation is USD $5,000. The process is managed by Archangel Ventures and is subject to expression of interest. The window for applications is open until 7 November 2025.

Heidi says its core offering remains unchanged, focusing on expanding clinical capacity by automating administrative workloads so that clinicians can devote more attention to patient care. The company reports adherence to regulatory benchmarks including standards set by the NHS, HIPAA, GDPR, and Australian Privacy Principles, in addition to holding certifications such as SOC2 and ISO27001.