Team

Partners

Dr Michelle Deaker

Founding & Managing Partner
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Dr Michelle Deaker

Founding & Managing Partner

|   Location: Sydney, AU

Michelle is a Founding Partner and the Managing Partner at OneVentures. She serves on the investment committees of OneVentures funds and has led the capital raising activities for the firm. Her focus today is in the technology growth practice, though she has also worked extensively across both healthcare and technology investments.

With over 25 years’ experience building and investing in high growth technology companies across Australia and the US, Michelle has a proven track record in global business expansion and Australian R&D commercialisation. She has led or co-led, and served as a Director of, several landmark investments including Employment Hero ($2B valuation, 13x ROI, Returned 1.5x Fund II), Phocas (7x ROI, acq. Accel-KKR), Smart Sparrow (acq. Pearson Learning), My Mobile Data (acq. ASX:AYS), Hatchtech (Lic. to NYSE:RDY), and Vaxxas. Michelle chaired the Employment Hero board until December 2023 and continues to serve as a Director, alongside board roles at Vaxxas and Buildkite, and previously Phocas.

A current member of the Reserve Bank of Australia’s Payment Systems Board, Michelle is also a former board member of Australia’s National ICT Centre of Excellence (NICTA, now Data61), Seven West Media (ASX:SWM) and served on the NSW Government’s Digital Economy Taskforce.

In the lead up to founding OneVentures, Michelle worked for a leading family office on their alternative investments, served as an entrepreneur in residence at Southern Cross Venture Partners and was an angel investor. Prior to her investment career, Michelle was a business entrepreneur and founder, including one of Australia’s first fintech companies, E Com Industries (www.giftvouchers.com) (acq. LSE:ReD, 4.6x, 70% IRR), IT services business, Networks Beyond 2000 and a tertiary tutoring business.

Michelle is a member of the Australian Institute of Company Directors and Chief Executive Women (CEW). She was a founding advisory board member of Head Over Heels (now Apropela), supporting women entrepreneurs, and served on the advisory board of the Indigenous fund Ochre Ventures.

In addition to these roles, she lectures in the Australian Investment Council’s Foundations of Private Capital Venture Capital Course and is a Co-Founder of WinVC, a non-profit women-led initiative supporting the career trajectory of women investors in venture capital.

Michelle holds a Bachelor of Science (Honours), a Master of Science and a PhD in Applied Science.

|   BSc (Hons), MSc, PhD 

Portfolio Board Roles
In the news

Nick Gainsley

Partner, Head of Growth Credit & Director
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Nick Gainsley

Partner, Head of Growth Credit & Director

| Growth Credit

| Location: Sydney, AU

Nick heads OneVentures’ Growth Credit practice and serves on the investment committees for the Growth Credit and Growth Equity funds as well as the OneVentures Board.

With nearly 20 years of experience in growth credit investing and debt advisory, he has led over $500M in financing for more than 100 companies across sectors including SaaS, PropTech, FinTech, RetailTech and MedTech. Notable investments include Fleet Space, Shippit and HomeTime.

Before joining OneVentures in 2019, Nick was a Principal at Kreos Capital, Europe’s largest growth credit fund (now part of BlackRock), where he specialised in deal origination, execution and portfolio management. He began his career at KPMG in corporate finance, focusing on debt advisory and credit transactions.

He is a mentor in the AIC Women Mentorship Program and regularly shares his insights as a keynote speaker on Growth Credit and alternative financing.

Nick holds a Bachelor of Science (Hons) from Manchester University, a Diploma in Corporate Finance from the Institute of Chartered Accountants in England and Wales and a Diploma in Treasury Management (AMCT) from the Association of Corporate Treasurers (UK).

| BSc (Hons), AMCT

Portfolio Board Roles
In the news

Sarah Meibusch

Partner, Head of Healthcare
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Sarah Meibusch

Partner, Head of Healthcare

|   Healthcare

|   Location: Brisbane, AU

Sarah heads the healthcare pillar at OneVentures, focused on sourcing and supporting life sciences companies developing transformative technologies with global potential.

She currently serves as Chair of Vaxxas and Axial Therapeutics, a Board Member for Kira Biotech and an Alternate Board Member and Observer for Clinical Genomics and Prota Therapeutics.

Sarah brings over 20 years of enterprise-level leadership experience across the life sciences ecosystem, from agriculture to healthcare. Her career spans start-ups, private and public companies (ASX- and NASDAQ-listed), multinational pharma, and university research organisations. She has a strong track record in deal-making, from early-stage investments and university collaborations to major pharma transactions worth hundreds of millions of dollars.

Prior to joining OneVentures, Sarah held roles in business development and commercial strategy in Australia and the United States, combining deep scientific expertise with commercial acumen to drive innovation to market.

Sarah holds a Bachelor of Agricultural Science with First Class Honours from the University of Queensland and a Master’s in Genomics from Cornell University. She has post-graduate training in negotiation from Harvard and is a Graduate of the Australian Institute of Company Directors (GAICD). She is also a member of the QIMR Berghofer Medical Research Institute Commercial Advisory Board and the AusBiotech Investment Advisory Group.

|   BAgrSc (Hons), MPS, GAICD

Portfolio Board Roles
In the news

Bevin Shields

Partner
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Bevin Shields

Partner

|   Growth Equity

|   Location: Sydney, AU

Bevin leads OneVentures’ growth technology investment strategy for Fund V and Fund VII and serves on their Investment Committees.

With over 20 years of experience in technology investing, M&A and capital markets, Bevin provides strategic guidance to portfolio companies and sits on the boards of Lumary and MyPass. He specialises in driving growth through acquisitions, organic expansion and operational excellence.

Before joining OneVentures, Bevin was a Partner at Bailador Technology Investments, where he led growth-stage technology investments across Australia and New Zealand. During his tenure, Bailador achieved nine successful exits, delivering over $250M in returns at an average 3.1x CoC and 25% IRR. Key investments included Rezdy, RC TopCo, Standard Media Index and Updoc.

Prior to that, Bevin was Head of M&A at Catapult Group, where he led acquisitions that expanded the company’s scale and market presence globally and secured over $150M in financing. Earlier in his career, he was a graduate analyst in corporate finance at Deloitte and a vice-president in investment banking at the Royal Bank of Scotland, advising emerging companies across capital markets and M&A.

Bevin graduated with a Master of Commerce from the University of Sydney and is a Member of the Australian Institute of Company Directors.

|   MCom, USYD BCom, USYD  

Portfolio Board Roles
In the news

Nigel Dews

Operating Partner
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Nigel Dews

Operating Partner

|   Growth Equity

|   Location: Sydney, AU

Nigel is an Operating Partner in the Technology team at OneVentures, supporting portfolio companies in the Growth Equity Funds with over 25 years of international experience in management consulting, startup leadership and scale-up execution.

He serves on the Investment Committees for Growth Fund V and VII, is Chair of Kepler Analytics, sits on the board of Flippa, and was previously on the board of Lumary and MyMobileData.

Nigel is a Founding Partner and Chair of GNG Partners, a boutique growth strategy consulting firm that combines operating leadership and top-tier consulting experience to collaborate with OneVentures’ portfolio companies to develop Growth Acceleration Plans.

Before joining OneVentures, Nigel held significant executive roles, including CEO of Vodafone Hutchison Australia, 3 Mobile and Fairfax Digital. As CEO of Message Media, he led its rapid growth through acquisitions, product innovation and geographic expansion, resulting in a $1.8B exit in 2021.

He began his career at the Reserve Bank of Australia and spent five years at McKinsey & Company, consulting across the USA, UK, Australia and New Zealand and later as a Partner at Port Jackson Partners. Nigel played a pivotal role in launching Fairfax Digital, led the Hutchison-Vodafone Australia merger and led a tech infrastructure startup in the UK.

Nigel holds an Honours degree in economics and an MBA from London Business School.

|   BEc (Hons), MBA 

Matt Sinnamon

Partner & General Counsel
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Matt Sinnamon

Partner & General Counsel

|   Location: Sydney, AU

Matt is a Partner and COO at OneVentures, where he leads legal, compliance, corporate finance, investor relations and marketing functions.

As General Counsel, Company Secretary and a Responsible Manager, Matt ensures regulatory excellence and robust governance. Matt also drives ESG practices across the portfolio, supporting founders and investors by implementing effective structures, aligning with industry standards and advancing sustainability goals.

With over 20 years of legal experience in financial services, he has held senior leadership roles both locally and internationally, including General Counsel & Company Secretary at Eclipx Group and Head of Legal, Compliance and Company Secretary at ING Bank Australia. His early career includes positions at Corrs Chambers Westgarth, Perpetual and Pitcher Partners.

Matt holds a Bachelor of Laws (LLB) and a Bachelor of Business (BBus) in Banking and Finance from QUT. Admitted to the Supreme Court of NSW and the High Court of Australia, he is also a Chartered Secretary and Public Notary.

|   LLB BBus Banking & Finance