Investors / Leyden Ventures
Leyden Ventures
Investor
Leyden Ventures is an investment firm whose site lists a portfolio of 31 companies. The pages provide no further description of its activities.
Invests inFintech
In its own wordsfintechcryptoconsumerhealthtech
Your fit with Leyden Ventures
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsLeyden Ventures lists 28 checked portfolio companies on its own site and is named in 1 funding round. Its most frequent entry is Series A, 100% of the companies with a known first round. Its largest themes are Fintech (30%), AI & Machine Learning (12%) and Healthcare & Biotech (9%). 77% of its companies are based in United States. It invests most often alongside Andreessen Horowitz, DCG and Y Combinator.
Counts come from funding rounds that name Leyden Ventures, complete from mid-2025: earlier rounds appear only when they were reported later. Round amounts and full round histories are on Fundup AI.
Round figures show recent activity, not Leyden Ventures' whole history. Rounds on record name 1 company; its own site lists 28. Funding rounds are complete from mid-2025, so counts and the yearly trend undercount a firm that invested before then. The portfolio, themes and places come from its own site and are not affected.
Entry stage
share of companies by the stage of its first roundLeyden Ventures does not state its stages on its site, so only what it does is shown.
Show as a table
| Value | |
|---|---|
| Pre-seed | 0% |
| Seed | 0% |
| Series A | 100% |
| Series B | 0% |
| Growth | 0% |
Activity by year
rounds it joined, last 10 yearsShow as a table
| Total | Rounds it led | |
|---|---|---|
| '17 | 0 | 0 |
| '18 | 0 | 0 |
| '19 | 0 | 0 |
| '20 | 0 | 0 |
| '21 | 1 | 0 |
| '22 | 0 | 0 |
| '23 | 0 | 0 |
| '24 | 0 | 0 |
| '25 | 0 | 0 |
| '26 | 0 | 0 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 65th | 28 companies |
| Recent activity | 46th | 0 rounds in 12 months |
| Early stage | 54th | 0% of entries at pre-seed or seed |
| Evidence | 59th | 4% of companies confirmed by a round |
| Sector focus | 53th | 30% in its largest sector |
| Reach | 70th | 4 countries |
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| Fintech | 30% | 12% |
| AI & Machine Learning | 12% | 18% |
| Healthcare & Biotech | 9% | 15% |
| Crypto & Web3 | 9% | 1% |
| Enterprise Software | 9% | 8% |
| Space & Defense | 7% | 3% |
| Media & Entertainment | 7% | 4% |
| Consumer | 5% | 3% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Andreessen Horowitz | 4 |
| DCG | 4 |
| Y Combinator | 4 |
| Beyond | 3 |
| Capitoria | 3 |
| Draper Associates | 3 |
| Gil & Co | 3 |
| Kleiner Perkins | 3 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers28100%
- No longer answers00%
- Points to another company00%
- Parked or sold domain00%
A site that stops answering three checks in a row is counted as no longer answering; that is not proof of closure. A site that points to another company is often an acquisition.
Co-investor network
who it backs companies with, and who they back togetherAll co-investors or Compare portfolios with Andreessen Horowitz
Compare Leyden Ventures head to head
portfolio size, rounds, entry stages, themes and the companies both backThree or more firms at once: portfolio overlap.
Recent portfolio activity
when companies last raised with Leyden Ventures| Date | Company | Stage |
|---|---|---|
| 31 Aug 2021 | Series A |
Round details for Leyden Ventures
Amounts, full round histories and every co-investor in Leyden Ventures' rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
28 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| AngelList is a portfolio of businesses that move capital through private markets. | FintechFintech | Portfolio page | ||
| The company provides an enterprise blockchain platform for tokenizing and managing real world assets. | FintechFintech | Portfolio page | ||
| Braid Health pairs AI imaging copilots with board-certified radiologists to deliver MRI, CT, and ultrasound second opinions, Ask AI explanations, and turnkey workflows for clinics. | Healthcare & Biotech | Portfolio page | ||
| Portfolio page | ||||
| Corvus Energy supplies zero-emission solutions for the maritime industry using battery technology | Industrial & ManufacturingSpace & Defense | Portfolio page | ||
| Debyt provides a stablecoin layer for payment programs, allowing companies to add stablecoin capabilities to their existing infrastructure | FintechCrypto & Web3 | Portfolio page | ||
| Emergence builds mission-critical agentic infrastructure for autonomous systems in demanding environments | AI & Machine LearningSpace & Defense | Portfolio page | ||
| Fireblocks provides digital asset and stablecoin infrastructure for various industries, including trading firms, fintechs, and financial institutions. | FintechCrypto & Web3 | Portfolio page | ||
| FundersClub invests in and supports startups, allowing accredited members to invest in these companies through their platform. | FintechEnterprise Software | Portfolio page | ||
| Optimal AI provides AI code review for GitHub and GitLab | AI & Machine LearningCybersecurity | Portfolio page | ||
| Human Ventures is a venture capital firm that invests in companies at the earliest stages | FintechHealthcare & Biotech | Portfolio page | ||
| Portfolio page | ||||
| Portfolio page | ||||
| Kinema shows various films and documentaries | Enterprise SoftwareMedia & Entertainment | Portfolio page | ||
| The company produces and sells beverages, including energy drinks, soda-flavored sparkling water, and iced tea. | Food & AgricultureConsumer | Portfolio page | ||
| NexHealth provides software for dental and medical practices | Healthcare & BiotechEnterprise Software | Portfolio page | ||
| The company designs and sells electronic products such as headphones and phones. | Consumer | Portfolio page | ||
| Optable is building the next generation of privacy-first data infrastructure to power a migration toward privacy-safe advertising | Media & EntertainmentAI & Machine Learning | Portfolio page | ||
| Oxio provides a cloud-based platform for building and managing mobile networks and services. | FintechMedia & Entertainment | Portfolio page | ||
| Pipe provides embedded financial solutions for businesses, including access to capital and financial tools. | FintechSpace & Defense | Portfolio page |
About this data
site last read 5 Nov 2026- Site
- leyden.vc
- Last read
- 5 Nov 2026
- Watching since
- 6 Nov 2026
- Rounds since
- 31 Aug 2021
- Companies checked
- 28
Rates come from what VCinfo has observed since observation_start. Firms tend to remove companies that closed, so early rates understate reality. A company leaving a portfolio page does not mean it closed or exited. An unreachable site means our checks failed, nothing more.
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