# Top 20 Enterprise Software Angel Investors in Australia in May 2026

## Mike Zimmerman
- Type: Angel
- Location: Sydney, New South Wales, Australia
- Relevant deals: 2
- Stages: Seed, Series A, Angel
- Focus: Software, Information Technology, Artificial Intelligence

Michael brings over 20 years experience in strategy, business development and general management of technology startups and other high growth companies. Michael founded BuildingIQ in 2009 and served as its CEO until 2013. Prior to founding the company, Michael was a General Partner at Technology Venture Partners (TVP), a leading Australian venturecapital firm. Prior to TVP, he was an Entrepreneur-in-Residence at Altos Ventures, and a senior executive at iOwn Holdings, a leading Internet mortgage company (sold to Citigroup in 2001). Previously, Michael worked with Bain & Company and Goldman Sachs. He holds a BA with Honors from Amherst College and an MBA from Stanford Business School.

## James McKinnon
- Type: Angel
- Location: Sydney, New South Wales, Australia
- Relevant deals: 2
- Stages: Seed, Angel, Series A
- Focus: Cyber Security, Software, Information Technology

James McKinnon - Managing Partner @ MIRIN CAPITAL

## Jonathan Downey
- Type: Angel
- Location: San Francisco, California, United States
- Relevant deals: 1
- Stages: Seed, Series A, Series B
- Focus: Software, SaaS, Machine Learning

Jonathan Downey is an experienced technology entrepreneur, CEO, and investor, having founded two companies and invested in more than 40 startups. He is currently the co-founder and CEO of a company at the intersection of talent and data. He has built out high-performing teams across a broad set of skills from hardware engineering through cloudservices, analytics, and enterprise sales. Over his career he has raised over $100M from leading investors, including A16Z, KPCB, Signalfire, First Round Capital, GV, and Next World Capital, and has secured 6 and 7-figure enterprise engagements with Fortune 500 enterprises including State Farm and Caterpillar.Jonathan is an electrical engineering and computer science graduate from MIT and holds numerous patents. A YC-Combinator alum, Jonathan was named USA Today's "Small-Business Innovator of the Year" and MIT Tech Review's "35 Innovators Under 35”. He is an instrument-rated commercial multi-engine pilot and worked at Boeing as an engineer contributing to the development and flight testing of the A160T Hummingbird, a 6,500 lb fully-autonomous helicopter, which broke the world record for longest helicopter flight. and regularly flew within the National Airspace System (NAS).

## Simon Sheikh
- Type: Angel
- Relevant deals: 1
- Stages: Seed
- Focus: SaaS, Software, CleanTech

Simon Sheikh

## Gabby Leibovich
- Type: Angel
- Location: Melbourne, Victoria, Australia
- Relevant deals: 1
- Stages: Series A, Seed
- Focus: Apps, FinTech, Internet

Gabby Leibovich is the co-founder and managing director at Catch.com.au.

## Les Szekely
- Type: Angel
- Location: Sydney, New South Wales, Australia
- Relevant deals: 1
- Stages: Seed, Angel, Series A
- Focus: Software, E-Commerce, Information Technology

Les Szekely B.A. LL.M. FAICD, is an active business angel, mentor, and M&A consultant. He started GPC in 2010 after a career of almost 30 years as a tax consulting partner and director with Horwaths Chartered Accountants and then Deloitte. He is the author of over a dozen books on taxation law, has been an active angel investor since 1999 andis currently a director of several early stage and maturing companies.

## Paul Rayson
- Type: Angel
- Location: Sydney, New South Wales, Australia
- Relevant deals: 1
- Stages: Series A
- Focus: SaaS, Software, CleanTech

Paul Rayson is a CEO at Hearts and Minds Investments.

## Hezi Leibovich
- Type: Angel
- Location: Melbourne, Victoria, Australia
- Relevant deals: 1
- Stages: Seed, Series A
- Focus: Internet, Apps, Marketplace

Serial entrepreneur and investor
Founded some of Australia’s most successful B2C companies. Over $500m in exits in the last 5 years.

## Anthony Klein
- Type: Angel
- Location: Melbourne, Victoria, Australia
- Relevant deals: 1
- Stages: Seed
- Focus: E-Commerce, Enterprise Software

Anthony Klein

## Alan Jones
- Type: Angel
- Location: Sydney, New South Wales, Australia
- Relevant deals: 1
- Stages: Seed
- Focus: Software, Cyber Security, Mobile

Alan Jones is a mentor and entrepreneur-in-residence with many of Australia's tech startup accelerators, specialising in strategy for product development and marketing.Alan draws on hands-on experience founding and co-founding web and mobile startups, as well as senior management experience in larger companies including Yahoo!, News DigitalMedia and Microsoft. At Yahoo! he was Product Director, South Asia for Yahoo! Inc.Alan advises and invests in early-stage startups directly and through Startmate and Pollenizer Ventures. His investments include ChromaSun, BugHerd, Grabble (acquired by WalMart in 2011), ScriptRock, Flightfox, Spreets (acquired by Yahoo7 in 2011), OtherLevels and NinjaBlocks.
Alan is a co-founder of digital agency The New Agency, Editor-in-Chief of FromLittleThings.co, is a mentor for Startmate, and is the Social Media and Web Director for TEDxSydney.

## Trevor Nelson
- Type: Angel
- Location: Melbourne, Victoria, Australia
- Relevant deals: 1
- Stages: Seed
- Focus: E-Commerce, Enterprise Software

Trevor Nelson

## Quinn Quinn
- Type: Angel
- Location: Melbourne, Victoria, Australia
- Relevant deals: 1
- Stages: Angel, Seed
- Focus: Transportation, Software, Apps

Adrian became a serial entrepreneur who had multiple exits across the USA, Australia and NZ. Adrian is co-founder and lead investor at AngelCube, Melbourne’s first venture accelerator, which provides seed investment and mentoring for technology start-ups and recently won StartupSmart magazine’s “Best Start-up Investor” award. Adrian is alsofounding chairman of Investors' Organisation, whose mission is to grow the pool of investors willing to support Australia’s next generation of entrepreneurs, through collaboration and idea exchange. Adrian has invested in more than 40 Australian and US startups.

## Ruslan Kogan
- Type: Angel
- Location: Melbourne, Victoria, Australia
- Relevant deals: 1
- Stages: Seed, Series A
- Focus: Apps, SaaS, FinTech

Ruslan Kogan is a serial entrepreneur, having created and run many successful businesses. He is one of the pioneers of online retail in Australia, and his Internet ventures have expanded to include a global footprint. His companies have operations in Australia, the United Kingdom, Hong Kong, with much more international expansion planned. Histremendous success made him Australia's wealthiest self-made person under the age of 30. The technology manufacturer and online retailer he created, Kogan.com, has gone on to become the biggest online retailer in Australia, valued at over $400 million.Ruslan Kogan is a regular guest contributor to TechCrunch, Forbes, Gizmodo, and other outlets.

## Leigh Warren
- Type: Angel
- Location: Melbourne, Victoria, Australia
- Relevant deals: 1
- Stages: Seed
- Focus: E-Commerce, Enterprise Software

Leigh Warren

## John Murray
- Type: Angel
- Location: Sydney, New South Wales, Australia
- Relevant deals: 1
- Stages: Seed
- Focus: SaaS, Software, Livestock

John Murray - Managing Director,Founder @ Perennial Partners

## Matt Berriman
- Type: Angel
- Location: Melbourne, Victoria, Australia
- Relevant deals: 1
- Stages: Seed, Series A
- Focus: Information Technology, Internet, Financial Services

Matt Berriman is the Chairman of Mental Health Australia.

## Allan Moss
- Type: Angel
- Location: Sydney, New South Wales, Australia
- Relevant deals: 1
- Stages: Series A, Seed
- Focus: Health Care, Medical Device, Biotechnology

Allan Moss acts an adviser to Anchorage’s Investment Committee. Currently Principal of Allan Moss Investments, a private investment company, Allan retired from the role of Managing Director and Chief Executive Officer of Macquarie Group in May 2008. He was with Macquarie Group for 31 years and served as CEO from 1993 to his retirement in2008. He was also a non- executive director of CSR Ltd from 1996 to 2001.Allan graduated from Sydney University in Arts with a major in Economics and in Laws with Honours. He is also a graduate of Harvard University with a Masters Degree in Business Administration with High Distinction. Allan has received numerous industry awards and recognitions. He was twice named by Barron’s Magazine as one of the 30 most respected CEOs in the world (2006, 2007). He was appointed an Officer of the Order of Australia in 2005.

## Roger Allen
- Type: Angel
- Location: Sydney, New South Wales, Australia
- Relevant deals: 1
- Stages: Seed, Series A, Series B
- Focus: Software, Artificial Intelligence, Machine Learning

Roger Allen, director and co-founder of A&B, has practical credentials directly relevant to the Fund based upon over thirty years as a chief executive of a major Australian IT services company with worldwide operations, then 13 years as an active investor in private companies in the ICT industries.Roger grew shareholder value in ComputerPower from $250k in 1978 to $170m in 1995 (at the time of his retirement) and also grew the annual revenue to over $300m and staff to more than 3,000. Roger obtained private equity from News Corporation, through the direct involvement of Rupert Murdoch, prior to taking Computer Power public on the ASX in 1987. He has direct personal experience in selling Australian information technology products and services in the USA, Europe, Asia, as well as Australia.He served for six years until 1997 as deputy chairman of Austrade and is very well known throughout the information technology industry in Australia and internationally. He was the first chief executive from an Australian company to be elected chairman of the Australian Information Industries Association, has represented Australia at the World Computer Services Forum and was vice-president of the Asia-Pacific industry organisation. He has also served on two advisory councils to the Prime Minister and has chaired state advisory boards in both NSW and Victoria. He has been an adjunct professor in the School of Entrepreneur-ship of Swinburne University and regularly lectures at INSEAD in the School of Entrepreneurship. Roger was recently awarded the 2007 Pearcey Medal for Lifetime Achievement in recognition for his outstanding contribution to the ICT industry.

## Michael Gonski
- Type: Angel
- Location: Sydney, New South Wales, Australia
- Relevant deals: 1
- Stages: Seed
- Focus: Legal, Drones, Software

Michael Gonski

## Nicholas Gruen
- Type: Angel
- Location: Melbourne, Victoria, Australia
- Relevant deals: 1
- Stages: Angel
- Focus: Software, Machine Learning, Enterprise Software

Nicholas Gruen is a prominent Australian economist and commentator on innovation and the CEO of Lateral Economics and Chairman of the Open Knowledge Foundation (Australia). He was formerly Chairman of the Australian Centre for Social Innovation, the Australian Government's Innovation Australia and founding chairman of Kaggle. Lindsay Tannerhas described him as "Australia's foremost public intellectual".

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