Louise Boucher
Founder and Managing Partner at Sisyphus Ventures
United Kingdom
Louise Boucher, Founder and Managing Partner at Sisyphus Ventures is an active investor based in United Kingdom. This profile covers what Louise Boucher backs, at which stage, and how founders can reach out in 2026.
Louise Boucher is the Founder and Managing Partner at Sisyphus Ventures, an early-stage fund backing defense founders.
- Investor type
- VC
- Stages
- Pre SeedSeedSeries A
- Invests in
- GovTech & DefenseHardware & Deep Tech
- Location
- United Kingdom
- Typical check
- $250K
How to reach Louise Boucher
Angels and operators like Louise Boucher 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.
Connect with Louise Boucher
About this profile
This profile is part of Round Funded, an investor database and outreach platform for founders. It covers 60,000+ active VCs, angels, family offices and accelerators with verified contacts, lets you send pitches from your own Gmail, and includes a free Data Room for your raise.
Frequently Asked Questions
What does Louise Boucher invest in?
Louise Boucher invests in GovTech & Defense and Hardware & Deep Tech, typically at Pre Seed, Seed and Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does Louise Boucher invest at?
Louise Boucher typically invests at Pre Seed, Seed and Series A. Lead with traction that fits the stage when you reach out.
What is Louise Boucher's typical check size?
Louise Boucher typically writes checks around $250K. Use it as a signal for whether your raise fits their stage.
How do I contact Louise Boucher?
Unlock Louise Boucher's verified email on Round Funded and send a personalized pitch. We surface only deliverable contacts so your outreach lands.
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.