Pantelis Vassiliou, Principal at Vassiliou Ventures is an active investor based in Tucson, Arizona. This profile covers what Pantelis Vassiliou backs, at which stage, and how founders can reach out in 2026.
Pantelis Vassiliou is Principal at Vassiliou Ventures and founded ReliaSoft Corporation, which was acquired by Spectris PLC.
Pantelis Vassiliou invests in SaaS & Enterprise and Hardware & Deep Tech, typically at Early Stage Venture.
- Investor type
- VC
- Stages
- Early Stage Venture
- Invests in
- SaaS & EnterpriseHardware & Deep Tech
- Location
- Tucson, Arizona
- Typical check
- $500K
How to reach Pantelis Vassiliou
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Cite this page
Round Funded. "Pantelis Vassiliou." Round Funded investor database, updated November 3, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/pantelis-vassiliou
Frequently Asked Questions
Who is Pantelis Vassiliou?
Pantelis Vassiliou, Principal at Vassiliou Ventures is an active investor based in Tucson, Arizona. Pantelis Vassiliou invests in SaaS & Enterprise and Hardware & Deep Tech, typically at Early Stage Venture.
What does Pantelis Vassiliou invest in?
Pantelis Vassiliou invests in SaaS & Enterprise and Hardware & Deep Tech, typically at Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Pantelis Vassiliou invest at?
Pantelis Vassiliou typically invests at Early Stage Venture. Lead with traction that fits the stage when you reach out.
What is Pantelis Vassiliou's typical check size?
Pantelis Vassiliou typically writes checks around $500K. 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.