Investors / Netherlands / OTB Ventures
OTB Ventures
Venture capital · Amsterdam, Netherlands · Europe
OTB Ventures is a pan-European venture capital fund that invests in B2B deep-tech companies at late Seed and Series A stages. It makes initial investments of EUR 1m to EUR 7m and can invest up to EUR 25m per portfolio company, typically across several rounds.
Invests inAI & Machine Learning
In its own wordsdeeptechspacetechenterprise automationartificial intelligencefintechcybersecurity
Your fit with OTB Ventures
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsOTB Ventures lists 36 checked portfolio companies on its own site and is named in 17 funding rounds, 5 of them as lead. Its most frequent entry is Series A, 53% of the companies with a known first round. Its largest themes are AI & Machine Learning (44%), Fintech (15%) and Healthcare & Biotech (13%). It invests most often alongside Seraphim Space, IQT and Molten Ventures.
Counts come from funding rounds that name OTB 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 OTB Ventures' whole history. Rounds on record name 16 companies; its own site lists 36. 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 roundShow as a table
| Value | |
|---|---|
| Pre-seed | 0% |
| Seed | 27% |
| Series A | 53% |
| Series B | 20% |
| 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 | 0 | 0 |
| '22 | 0 | 0 |
| '23 | 0 | 0 |
| '24 | 1 | 1 |
| '25 | 5 | 1 |
| '26 | 11 | 3 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 74th | 36 companies |
| Recent activity | 95th | 11 rounds in 12 months |
| Early stage | 60th | 27% of entries at pre-seed or seed |
| Evidence | 98th | 39% of companies confirmed by a round |
| Sector focus | 78th | 44% in its largest sector |
| Reach | 96th | 11 countries |
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| AI & Machine Learning | 44% | 18% |
| Fintech | 15% | 12% |
| Healthcare & Biotech | 13% | 15% |
| Cybersecurity | 8% | 4% |
| Space & Defense | 7% | 3% |
| Industrial & Manufacturing | 7% | 7% |
| Enterprise Software | 5% | 8% |
| Consumer | 2% | 3% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Seraphim Space | 5 |
| IQT | 4 |
| Molten Ventures | 3 |
| Startup Wise Guys | 3 |
| 10x Group | 2 |
| Amadeus Capital Partners | 2 |
| Balnord | 2 |
| Bek Ventures | 2 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers36100%
- 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 togetherCompare OTB 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 OTB Ventures| Date | Company | Stage |
|---|---|---|
| 6 Oct 2026 | Series A | |
| 16 Sept 2026 | Series A | |
| 10 Sept 2026 | Series A Led | |
| 9 Jun 2026 | Series A | |
| 3 Jun 2026 | Seed | |
| 29 Apr 2026 | Series B Led | |
| 22 Apr 2026 | Series A | |
| 12 Mar 2026 | Round Led |
Round details for OTB Ventures
Amounts, full round histories and every co-investor in OTB Ventures' rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
36 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Akirolabs provides AI-powered category management software for procurement | AI & Machine LearningEnterprise Software | Portfolio page | ||
| Alta Ares develops autonomous defense systems adapted to modern warfare. | AI & Machine LearningAI & Machine Learning | Jun 2026Series A | Page + round | |
| Apheris AI creates superior drug discovery models using federated data and artificial intelligence | Healthcare & Biotech | Portfolio page | ||
| Arlequin AI builds an AI platform for critical decision making and action. | AI & Machine LearningCybersecurity | Sept 2026Series A | Page + round | |
| ATMOS Space Cargo builds reusable spacecraft and return logistics for spaceflight | Space & Defense | Apr 2026Series A | Page + round | |
| Auriga develops scalable, reusable launch systems powered entirely by electricity for space and defense applications | AI & Machine LearningAI & Machine Learning | Jul 2025Seed | Page + round | |
| Balnord is a venture capital investor in dual-use and frontier technology companies in the Baltic Sea and Northern Europe region. | FintechHealthcare & Biotech | Nov 2025Series A | Funding round | |
| ClearSpace builds the servicing layers that enable the next generation of space operations, including inspection, life extension, and debris removal | Space & Defense | Portfolio page | ||
| Cosmose AI delivers Attention-as-a-Service using first-party data and proprietary AI models. | AI & Machine Learning | Portfolio page | ||
| FintechOS provides an AI platform for financial product operations, helping financial institutions modernize and automate their product operations | FintechAI & Machine Learning | Portfolio page | ||
| Fractory provides metal fabrication services, including various cutting, machining, and assembly processes, to engineering businesses. | Industrial & ManufacturingAI & Machine Learning | Portfolio page | ||
| Hydrosat provides thermal infrared data and analytics to help governments, companies, and partners monitor resources, detect change, and act earlier. | AI & Machine LearningAI & Machine Learning | Jan 2026Series B | Page + round | |
| ICEYE provides synthetic aperture radar satellite data and services for various applications including defense, intelligence, and natural disaster monitoring. | AI & Machine LearningAI & Machine Learning | Portfolio page | ||
| Ingenix develops an AI reasoning engine for biology | Healthcare & BiotechAI & Machine Learning | Apr 2025Seed · 2 rounds | Page + round | |
| Kurs Orbital provides rendezvous and docking technology for satellite life extension, space debris removal, and other space missions | Space & Defense | Mar 2024Seed | Page + round | |
| KYP.ai provides a process intelligence platform for automated process discovery, task mining, and process optimization | AI & Machine LearningEnterprise Software | Portfolio page | ||
| MatrixSpace develops and provides drone detection and airspace safety systems using AI, radar, and sensors. | AI & Machine LearningCybersecurity | Oct 2025Series B | Page + round | |
| Ondato provides software for secure customer onboarding, including identity verification, age verification, and anti-money laundering compliance solutions. | FintechCybersecurity | Portfolio page | ||
| Plumerai develops and provides artificial intelligence software for smart home cameras | AI & Machine LearningConsumer | Sept 2025Series A | Page + round | |
| Safe Intelligence builds robust, reliable AI systems by applying leading-edge validation and robustification to deliver exceptional resilience for AI, Agent and ML systems. | AI & Machine LearningCybersecurity | Portfolio page |
About this data
site last read 11 Nov 2026- Site
- otb.vc
- Last read
- 11 Nov 2026
- Watching since
- 5 Nov 2026
- Rounds since
- 6 Mar 2024
- Companies checked
- 36
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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