Konstantin Sidorov
Angel investor in London
London, England
Konstantin Sidorov, Angel investor in London is an active investor based in London, England. This profile covers what Konstantin Sidorov backs, at which stage, and how founders can reach out in 2026.
- Investor type
- AngelVCPEInvestment Bank
- Stages
- Late Stage Venture
- Invests in
- SaaS & EnterpriseCybersecurity
- Location
- London, England
- Typical check
- $7M
- Past investments
- 4
Notable investments
How to reach Konstantin Sidorov
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About this profile
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Cite this page
Round Funded. "Konstantin Sidorov." Round Funded investor database, updated September 9, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/konstantin-sidorov
Frequently Asked Questions
What does Konstantin Sidorov invest in?
Konstantin Sidorov invests in SaaS & Enterprise and Cybersecurity, typically at Late Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Konstantin Sidorov invest at?
Konstantin Sidorov typically invests at Late Stage Venture. Lead with traction that fits the stage when you reach out.
What is Konstantin Sidorov's typical check size?
Konstantin Sidorov typically writes checks around $7M. 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.