Manta Ray Ventures
VC Fund
London, United Kingdom
Manta Ray Ventures is an early-stage venture capital fund backing mission-driven founders that provides flexible and patient capital, leveraging time, resources, and networks resources and networks as far as possible to support its portfolio companies.
- Total investments:
- 95
- Last investment:
- Lead investor:
- 5%
Last updated:
For AI agents: llms.txt
Industries Manta Ray Ventures invests in
Stages Manta Ray Ventures invests in
Countries Manta Ray Ventures invests in
Round sizes
Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Round size
- Seed
- $1M–$10M
- Series A
- $6.5M–$25M
- Series B
- $9M–$109M
Investment Focus
Industry
- Software 17 (18%)
- Information Technology 10 (11%)
- Health Care 8 (8%)
- Biotechnology 7 (7%)
- Food and Beverage 7 (7%)
Stage
- Seed 26 (27%)
- Series A 22 (23%)
- Series B 13 (14%)
- Venture - Series Unknown 9 (9%)
- Series C 8 (8%)
Country
- United States 31 (33%)
- United Kingdom 13 (14%)
- Poland 6 (6%)
- Germany 5 (5%)
- Israel 2 (2%)
Team
| Name | Title | Investments | Links | |
|---|---|---|---|---|
Leah Volger
Prinicpal
|
Prinicpal | Total investments: 0 | Find email | |
|
Christopher Sisserian
Head of Platform
|
Head of Platform | Total investments: 0 | Find email | |
Lawrence Barclay
Managing Partner
|
Managing Partner | Total investments: 11 | Find email | |
Sebastian Kulczyk
Founder
|
Founder | Total investments: 1 | Find email |
Investments
| Company | Description | Round | Links |
|---|---|---|---|
| Tequipy offers a seamless solution for equipping your team with the necessary hardware, eliminating the hassle of shipping, setup, collections, storage, and support. With just a few clicks, you can remotely configure employee computers and apply security policies to protect your company's intellectual property. | $3.5M / Seed / May 25, 2026 | ||
| Alien develops decentralized digital identity infrastructure focused on privacy-preserving proof of humanity and trust online. It builds a blockchain-based human network that uses biometric verification, cryptographic proofs, and decentralized protocols to authenticate unique humans and AI agents. The platform enables human verification, access tohuman-only spaces, and accountable AI systems. | $7.1M / Pre-Seed / Apr 01, 2026 | ||
| Infinitopes is a cancer research organization whose mission is to strengthen the immune system so that it can stop metastases and save lives. The company's platform creates healthcare systems and therapy designs to integrate high-efficiency vector delivery systems with optimal tumor target identification technologies in early-stage clinicaltrials, allowing patients to prevent cancer and tumors from taking their lives | $15.4M / Seed / Jan 21, 2026 | ||
| Juvena Therapeutics is a venture-backed biopharma startup discovering novel protein-based therapeutics that promote tissue regeneration in the elderly and treat various age-related diseases. | $33.5M / Series B / Jan 12, 2026 | ||
| Sitehop is a technology company that develops cutting-edge cyber-security and networking solutions. Sitehop's custom FPGA solutions are used to optimize and accelerate cloud/telco networks. | $10M / Series A / Oct 09, 2025 | ||
| Climax Foods is a data science company innovating the future of food. It has developed sophisticated machine intelligence tools to unlock smarter paths from plants to products, creating a new generation of plant-based foods that will out-compete animal-based predecessors.Together, a team of top data and food scientists from around the globe areintelligently harnessing the vast biodiversity of the plant kingdom to create the pinnacle of flavor, texture, and nutrition — at a price point for everyone.Climax Foods was founded in 2019 and is headquartered in Berkeley, California, United States. | $6.5M / Series A / Oct 06, 2025 | ||
| Kadence is the world’s #1 workplace operations platform for people and spaces. Designed for modern enterprises, Kadence unifies space management, team scheduling, occupancy insights, and AI-powered coordination into one seamless platform. Organizations around the world use Kadence to lower real estate costs, increase employee engagement, and drivebetter business outcomes. Trusted by leading global companies, Kadence empowers teams to work with purpose and operate at peak performance in today’s flexible work environment. | $20M / Series A / Jul 22, 2025 | ||
| Aqtual is a biotechnology diagnostics platform that provides healthcare solutions, novel technology and biochemistry for chronic disease. | $31M / Series B / Jul 10, 2025 | ||
| Infinitopes is a cancer research organization whose mission is to strengthen the immune system so that it can stop metastases and save lives. The company's platform creates healthcare systems and therapy designs to integrate high-efficiency vector delivery systems with optimal tumor target identification technologies in early-stage clinicaltrials, allowing patients to prevent cancer and tumors from taking their lives | $16M / Seed / Apr 30, 2024 | ||
| Sitehop is a technology company that develops cutting-edge cyber-security and networking solutions. Sitehop's custom FPGA solutions are used to optimize and accelerate cloud/telco networks. | $6.3M / Seed / Feb 28, 2024 | ||
| See all 95 investments → | |||
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FAQ
What does Manta Ray Ventures invest in?
Manta Ray Ventures invests primarily in Software, Information Technology and Health Care startups, most often at Seed and Series A stage. Most of the 95 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
What is Manta Ray Ventures's check size?
Manta Ray Ventures typically joins rounds of $1M–$10M at Seed, $6.5M–$25M at Series A and $9M–$109M at Series B. These ranges are 10th–90th percentile round sizes calculated from confirmed public funding rounds, so they are a realistic guide to the rounds Manta Ray Ventures participates in.
How do I contact Manta Ray Ventures?
Public channels for Manta Ray Ventures include LinkedIn and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
Who are the partners at Manta Ray Ventures?
The team at Manta Ray Ventures includes Leah Volger (Prinicpal), Christopher Sisserian (Head of Platform) and Lawrence Barclay (Managing Partner). The Team section lists each member with their title, investment count and links.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Sep 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
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