Role Call: appointments at Aurora Labs, NZ Tech Institute, Powerhouse Venture Partners, Main Sequence, Oli

Oli, a maternal health technology startup led by CEO Tara Croft, has appointed Colby Holtshouse to its board. Holtshouse was previously chief operating officer at Alydia Health before its acquisition by Organon, where she became global medtech commercial lead and led commercialisation of the JADA System to treat postpartum haemorrhage. She is currently CEO and president of May Health. Oli is developing monitoring technology designed to predict complications such as postpartum haemorrhage before they occur. The startup has raised $25 million and recently completed its final pivotal trial, enrolling 1,000 mothers across seven Australian and US hospitals, ahead of regulatory submissions.

Aurora Labs, the WA additive manufacturer listed on the ASX as A3D and developing metal 3D printing and propulsion systems for defence drones, has restructured its leadership. Andrew Garth, previously executive director for strategy and partnerships, becomes CEO. Garth is an aeronautical engineer with more than 20 years' experience, including work on Joint Strike Fighter and Airbus programs at GKN Aerospace. Rebekah Letheby moves from CEO to chief operating officer, focusing on technical delivery and defence customer relationships.

Deep tech venture capital firm Main Sequence has promoted Dr Elaine Stead from principal to partner. Stead holds a PhD in biochemistry specialising in stem cell biology and has more than a decade in venture capital. She has led the firm's healthcare investment strategy, with investments including Kinoxis Therapeutics, Currus Biologics and Xoma Labs. Main Sequence, which is CSIRO-backed, also runs Atmosphere, a pre-seed program supporting Australian scientists.

The New Zealand Institute for Advanced Technology has named Roman Reyhani as CEO, taking up the role on October 19. Reyhani returned to New Zealand last year after more than two decades overseas in law, technology and venture development, including six years at BCG Digital Ventures and subsequently BCG X. NZIAT connects researchers, businesses and investors to commercialise research, with a focus on advanced materials, AI and quantum technologies.

Noosa Partners founding director Michael Datta has joined Powerhouse Venture Partners as strategic growth partner, alongside a collaboration between the two businesses. Datta brings 30 years' experience founding, building and exiting businesses, with connections across Australian and US defence and medical industries. The new division of ASX-listed Powerhouse Ventures will work with emerging technology companies on commercialisation, capital strategy and international expansion, with the Noosa partnership adding commercial and market-entry support in the US and Europe.