Justin Diddams
Venture investor in Sydney
Sydney, New South Wales
Justin Diddams, Venture investor in Sydney is an active investor based in Sydney, New South Wales. This profile covers what Justin Diddams backs, at which stage, and how founders can reach out in 2026.
- Investor type
- VCPE
- Stages
- SeedSeries ASeries BLate Stage Venture
- Invests in
- PropTech & Real EstateFintechEdTechDigital Health & HealthTechSaaS & EnterpriseMarketplaceSupply Chain & LogisticsConsumer Goods (CPG)
- Location
- Sydney, New South Wales
- Typical check
- $2M
- Past investments
- 15
Notable investments
SiteMinder
Tyro PaymentsLiteracyPlanet
Mable
hipages
AnsaradaTemando
DesignCrowdFriendsurance AustraliaGeneroZoom2uHow to reach Justin Diddams
Angels and operators like Justin Diddams reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded.
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About this profile
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Cite this page
Round Funded. "Justin Diddams." Round Funded investor database, updated September 23, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/justin-diddams
Frequently Asked Questions
What does Justin Diddams invest in?
Justin Diddams invests in PropTech & Real Estate, Fintech, EdTech and Digital Health & HealthTech, typically at Seed, Series A, Series B and Late Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Justin Diddams invest at?
Justin Diddams typically invests at Seed, Series A, Series B and Late Stage Venture. Lead with traction that fits the stage when you reach out.
What is Justin Diddams's typical check size?
Justin Diddams typically writes checks around $2M. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.