Manta Ray Ventures Research
Investment Thesis
Manta Ray Ventures is an early-stage venture capital fund dedicated to backing mission-driven founders addressing significant global challenges through the application of leading-edge technologies. Founded with a commitment to flexible and patient capital, Manta Ray provides not just funding but also leverages its time, resources, and networks to support portfolio company success.
The fund's core philosophy centers on supporting entrepreneurs who are driven by clear social and environmental missions alongside commercial viability. Manta Ray invests in companies that combine technological innovation with purposeful impact, focusing on founders who are passionate about solving global problems while building sustainable, profitable businesses.
Fund Background and Assets Under Management
Manta Ray Ventures was established in 2018 and has evolved into an active early-stage venture fund. As of October 2025, the fund has deployed capital into 57-84 portfolio companies, with 2 new investments in the last 12 months, indicating selective and strategic deployment focused on quality over volume.
The fund operates with a patient capital approach, providing flexible investment structures that support founders through multiple stages of company development. This patient capital philosophy distinguishes Manta Ray from more traditional VC firms with rigid check sizes and exit timelines.
Geographic and Stage Focus
Geographic Focus:
- Primary: Global with strong European presence
- Major markets: United Kingdom, Germany, and broader European Union
- Secondary: North America and select other regions
Investment Stages:
- Primary: Seed stage investments
- Secondary: Pre-seed for exceptional mission-driven founders
- Follow-on: Series A and subsequent rounds in strong performers
Sector and Model Preferences
Based on portfolio analysis, Manta Ray invests across diverse sectors united by mission-driven positioning and technology application:
Sector Focus Areas:
- Climate & Sustainability - Clean energy, sustainable agriculture, renewable technology
- Healthcare & Life Sciences - Biotech, therapeutics, healthtech, personalized medicine
- Education & Workforce Development - EdTech, professional development, skills platforms
- Food & Nutrition - Alternative proteins, sustainable food systems, food tech
- Financial Technology - Inclusive fintech, emerging market financial services
- Software Infrastructure - Developer tools, data infrastructure, AI/ML applications
- Space & Satellite Technology - Space exploration, satellite communications
- Agritech & Sustainable Agriculture - Precision farming, agricultural innovation
- Consumer Tech - Mission-driven consumer applications with social impact
- Robotics & Automation - Industrial and agricultural robotics with efficiency focus
Team and Leadership
Sebastian Kulczyk, Founder: Visionary founder of Manta Ray Ventures, bringing significant experience in venture capital and mission-driven investing.
Lawrence Barclay, Managing Partner: Senior investment professional bringing extensive experience in venture capital and operational support for early-stage companies.
Leah von Siemens, Partner: Investment professional with focus on identifying and supporting mission-driven founders across technology sectors.
Julia Schrameier, Principal: Portfolio company advisor and investment analyst focusing on company support and sector analysis.
Christopher Sisserian, Head of Platform: Operational and support expert leading Manta Ray's platform services helping portfolio companies scale operationally.
Yaryna Nych, Analyst: Investment analyst supporting deal evaluation and portfolio monitoring.
The team is lean and collaborative, enabling direct engagement with founders while maintaining investment discipline.
Investment Decision Process
Decision Framework: Manta Ray evaluates investments through:
- Founder Quality & Mission Alignment - Founder passion for stated mission, team skills, relevant experience
- Technology & Innovation - Novel technological approach, defensible innovation, scalability
- Market Opportunity - Size of addressable market, timing, competitive landscape
- Impact Thesis - Clear theory of change, measurable impact metrics, authentic commitment
- Business Model - Viable path to profitability, clear unit economics potential
Timeline: Estimated 4-8 weeks for seed-stage decisions, with flexibility for compelling opportunities.
Support and Value-Add
Manta Ray differentiates through:
Direct Operational Support:
- Head of Platform provides hands-on scaling support
- Mentorship and strategic sounding board
- Team recruitment and organizational development assistance
- Product development and market validation guidance
Network Access:
- Introductions to potential customers and distribution partners
- Connections with other portfolio companies for collaboration
- Industry expert networks across various sectors
- Peer learning opportunities with mission-driven founders
Impact Support:
- Guidance on impact measurement and social metrics
- Assistance with impact communication and reporting
- Connection to impact-focused customers and partners
Recent Activity and Momentum
Fund Status: Actively deploying capital with focus on mission-aligned early-stage companies
Recent Investments (2025-2026):
- Juvena Therapeutics (January 2026, biotech/therapeutics, Series B follow-on)
- Infinitopes (January 2026, biotech/materials science)
Notable Portfolio Companies:
Climate & Sustainability: Hyperloop One, Volocopter, Freedom Bio, Believer Meats, Better Dairy
Healthcare & Biotech: Juvena Therapeutics, Ossium Health, Siren Care, Elephant Healthcare
EdTech & Workforce: Cuemath, New Globe, Brainly, Booksy
AgriTech: Climax Foods, Eat Cala, AppOnBoard
Space & Aerospace: Astranis, Hyperloop One
FinTech: Clark, Coinpaprika, Finiata
Software & Enterprise: Archdesk, Assembly OSM, Kadence, Market.ai
Founder Preferences
Manta Ray backs:
- Authentic social and environmental mission alignment
- Technical competence and strong execution capability
- Founder-led management with skin in the game
- International backgrounds and diverse perspectives welcome
- Prior entrepreneurial or relevant domain expertise valued
- First-time founders with exceptional domain expertise and mission commitment
Most Valued Qualities:
- Authentic commitment to stated mission (not secondary to profit)
- Technical or domain expertise addressing stated challenge
- Resilience and adaptability in uncertain environments
- Genuine passion for solving global problems
- Ability to build strong teams and attract talent
Summary
Manta Ray Ventures is a mission-driven early-stage venture capital fund with a distinctive global perspective and authentic commitment to supporting founders addressing significant global challenges. The fund combines patient capital, operational support through a dedicated Head of Platform, and a network of fellow mission-driven entrepreneurs. With portfolio of 57-84 companies spanning climate, health, education, and enterprise technologies, and active momentum through 2026, Manta Ray represents a unique position in the venture capital ecosystem.