Investors / United Kingdom / Osney Capital
Osney Capital
Venture capital · United Kingdom · Europe
Osney Capital is a sector specialist venture capital firm focused exclusively on early-stage cyber security companies in the UK. It invests in rounds typically under £5m and supports founders with sector expertise, networks and hands-on guidance.
Invests inCybersecurity
In its own wordscyber securityukearly stagesector specialistb2b software
Your fit with Osney Capital
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsOsney Capital lists 17 checked portfolio companies on its own site and is named in 8 funding rounds, 5 of them as lead. Its most frequent entry is Seed, 75% of the companies with a known first round. Its largest themes are Cybersecurity (59%), AI & Machine Learning (14%) and Enterprise Software (14%). 100% of its companies are based in United Kingdom. It invests most often alongside Antler, Episode 1 and 14Peaks Capital.
Counts come from funding rounds that name Osney Capital, 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 Osney Capital's whole history. Rounds on record name 8 companies; its own site lists 17. 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 | 25% |
| Seed | 75% |
| Series A | 0% |
| 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 | 0 | 0 |
| '22 | 0 | 0 |
| '23 | 0 | 0 |
| '24 | 0 | 0 |
| '25 | 1 | 1 |
| '26 | 7 | 4 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 44th | 17 companies |
| Recent activity | 91th | 7 rounds in 12 months |
| Early stage | 100th | 100% of entries at pre-seed or seed |
| Evidence | 98th | 35% of companies confirmed by a round |
| Sector focus | 88th | 59% in its largest sector |
| Reach | 19th | 1 country |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Antler | 3 |
| Episode 1 | 3 |
| 14Peaks Capital | 2 |
| Endurance Ventures | 2 |
| IQ Capital | 2 |
| Rule30 | 2 |
| .406 Ventures | 1 |
| 6 Degrees Capital | 1 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers17100%
- 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.
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| Cybersecurity | 59% | 4% |
| AI & Machine Learning | 14% | 18% |
| Enterprise Software | 14% | 8% |
| Space & Defense | 7% | 3% |
| Fintech | 3% | 12% |
| Developer Tools | 3% | 0% |
Co-investor network
who it backs companies with, and who they back togetherCompare Osney Capital 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 Osney Capital| Date | Company | Stage |
|---|---|---|
| 14 Oct 2026 | Pre-Seed Led | |
| 9 Sept 2026 | Seed | |
| 22 Jul 2026 | Pre-Seed | |
| 10 Jun 2026 | Seed Led | |
| 11 Feb 2026 | Seed Led | |
| 27 Jan 2026 | Seed | |
| 16 Jan 2026 | Seed Led | |
| 15 Oct 2025 | Seed Led |
Round details for Osney Capital
Amounts, full round histories and every co-investor in Osney Capital's rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
17 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Aisy investigates every ticket to learn how a company works and provides vulnerability management that learns | Cybersecurity | Jan 2026Seed | Page + round | |
| Aviel Technologies provides real-time intelligence feeds to help banks, payment service providers, and law enforcement agencies identify and prevent scam payments and protect customers. | FintechCybersecurity | Portfolio page | ||
| CodeWall provides autonomous attack agents for continuous and controlled adversarial testing to enterprise security | Cybersecurity | Oct 2026Pre-Seed | Page + round | |
| ESProfiler helps companies assess and optimize their security capabilities and investments. | CybersecurityEnterprise Software | Portfolio page | ||
| Huntbase provides a platform for security teams to investigate and identify potential breaches, using AI-powered tools to search across various security tools and hosts | Cybersecurity | Portfolio page | ||
| Ploy provides identity governance services, handling access requests, reviews, and revocations for its customers | CybersecurityEnterprise Software | Oct 2025Seed | Funding round | |
| Mindgard provides AI security solutions, including red teaming and vulnerability assessment, to help companies secure their AI systems and agents. | AI & Machine LearningCybersecurity | Portfolio page | ||
| OnSecurity provides AI-augmented penetration testing services | Cybersecurity | Portfolio page | ||
| Ossprey detects and prevents malicious code and supply chain threats in open source software | CybersecuritySpace & Defense | Jul 2026Pre-Seed | Page + round | |
| The company provides a service to help engineers see the impact of their changes on a live environment before they merge, to prevent outages. | CybersecurityDeveloper Tools | Feb 2026Seed | Funding round | |
| Overmind provides a platform for training and deploying specialized AI models for businesses using their own production data. | AI & Machine LearningCybersecurity | Portfolio page | ||
| Ploy provides identity governance services, including access requests, lifecycle management, and access reviews. | CybersecurityEnterprise Software | Portfolio page | ||
| Refute fights disinformation on behalf of organisations, detecting and responding to campaigns at the speed of the attackers. | CybersecurityAI & Machine Learning | Jan 2026Seed | Page + round | |
| RevEng.AI analyzes compiled software and provides binary intelligence to security operations, threat research, and product security teams | CybersecurityAI & Machine Learning | Portfolio page | ||
| SCI Semiconductor develops and provides memory-safe technologies and products for secure computing | CybersecuritySpace & Defense | Sept 2026Seed | Page + round | |
| Sitehop provides network solutions with low latency and quantum-ready encryption for various industries | Enterprise SoftwareCybersecurity | Portfolio page | ||
| Strand Intelligence provides digital forensics and incident response services using AI-powered tools | Cybersecurity | Jun 2026Seed | Page + round |
About this data
site last read 5 Nov 2026- Site
- osneycapital.com
- Last read
- 5 Nov 2026
- Watching since
- 5 Nov 2026
- Rounds since
- 15 Oct 2025
- Companies checked
- 17
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.
Get Osney Capital's profile as data
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