David Buller is a serial healthtech entrepreneur turned venture capitalist who co-founded and successfully exited Avantec Healthcare to BD (Becton Dickinson), giving him direct founder experience in building hospital-focused medical devices companies. He began his entrepreneurial journey at 15 and maintains a dual role as both Investment Partner of the Ascension Life Fund and independent investor, positioning him as a bridge between founders and specialist healthtech capital across digital health in the UK and Europe.
About their Fund
Ascension
Sectors
Fintech, Health, Ecommerce, Deeptech / Hardware, Future of Work
Rounds
Pre-Seed - Seed
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Notable Investments
Ascension is an early-stage VC led by founders who have personally built and exited startups, combining commercial returns with impact investing through their generalist fund and institutional impact platform. They focus on backing mission-driven founders outside London using a multi-capital structure that blends retail EIS-SEIS funds with institutional and British Business Bank regional capital, positioning themselves as high-conviction, patient capital partners for regional tech companies.
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Deeptech / Hardware
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Robotics
Biotech
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12
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Unknown
Pre-Seed - Seed
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$400K - $2M
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Defense
Deeptech / Hardware
Energy
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7
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Unknown
Pre-Seed - Series A
Unknown
$100K - $5M
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Defense
Deeptech / Hardware
Energy
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7
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Unknown
Pre-Seed - Series A
Unknown
$100K - $5M
Unknown
Biotech
Health
Deeptech / Hardware
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2
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Unknown
Pre-Seed - Seed
Unknown
$250K - $2M
Unknown
Climate
Deeptech / Hardware
Materials
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4
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Unknown
Pre-Seed - Seed
Unknown
$400K - $1.5M
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Deeptech / Hardware
Robotics
Biotech
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7
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Unknown
Pre-Seed - Seed
Unknown
$400K - $2M
Unknown
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Deeptech / Hardware
Robotics
Biotech
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2
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Unknown
Pre-Seed - Seed
Unknown
~$750K
Unknown
Fintech
Deeptech / Hardware
Devtools
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2
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Unknown
Pre-Seed - Series A
Unknown
$250K-$1M
Unknown
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