How many investments has Osney Capital made?

Osney Capital has 18 tracked investments, including 5 dated in the last 24 months.

What stage does Osney Capital invest at?

Osney Capital invests at the Pre-Seed, Seed, Series A stages.

What is Osney Capital's typical check size?

Osney Capital typically writes checks of $6.3M.

What sectors does Osney Capital focus on?

Osney Capital focuses on Cybersecurity.

Where is Osney Capital located?

Osney Capital is headquartered in UK, GB.

Who does Osney Capital co-invest with?

Osney Capital most often shares deals with Amadeus Capital Partners, Episode1, IQ Capital, among 18 tracked co-investors.

Osney Capital

Venture capitaloperating company · company profile

UK · Pre-Seed–Series A · 3 people tracked

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Investment thesis

Osney Capital focuses solely on the UK cyber security ecosystem, backing founders at the earliest stages of company growth. The firm positions itself as a sector specialist with deep knowledge of the cyber market, buyers, and technology. It invests only where its team believes it can uniquely support a company, contributing networks, expertise, and hands-on guidance. Osney typically makes its first investment when the round size is under £5m, partnering with founders from the very beginning and helping companies scale.

Invests inCybersecurity United Kingdom

Source: firm website, verified Aug 3, 2026.

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Stage

Pre-Seed–Series A

Check

$6.3M

UK, GB

Instruments

Equity

Last 12 months

5 investments

Tracked investments

Team · 3 people

from the firm's website

Adam Cragg· General Partner· Calgaryin 𝕏

Adam Cragg is a co-founder and Partner at Osney Capital who focuses on early-stage investing. He previously served as Chief of Staff at the Martin Trust Center for MIT Entrepreneurship and Founding Manager of NYU's Leslie Entrepreneurs Lab, co-founded the seed-stage fund and accelerator Quake Capital, and was Executive Director of Innovate Calgary. He holds an MBA from the University of Oxford and a BA from the University of British Columbia.

Joshua Walter· Partner· United Kingdomin

Josh Walter has held senior leadership roles in cybersecurity, having previously led the Financial Services sector business at NCC Group, where he worked with CISOs and security teams across banks, insurers, asset managers and fintechs. He later led Market Strategy at NCC Group, focusing on go-to-market and growth initiatives across sectors. He holds an MBA from the University of Oxford and a first-class honours degree in Civil Engineering from the University of Birmingham.

Paul Wilkes· Partner· Saint Peter Port, Guernsey, Guernseyin

Paul Wilkes is a Financial Services and regulatory lawyer with over 15 years of experience, including 8 years as a partner leading the corporate team at offshore law firm Collas Crill LLP, where he oversaw more than 50 employees across five jurisdictions. His legal practice covered venture capital fund structuring, M&A, banking and finance, and financial services regulation. He holds an MBA from the University of Oxford, an LLB from the University of New South Wales, and a first-class honours degree in Physiotherapy from Sydney University.

What they invest in

from 13 of 18 portfolio companies

AI & Machine Learning ×11Cybersecurity ×10Enterprise Software ×7SaaS ×7Developer Tools ×5Cloud Computing ×1Deep Tech ×1Hardware ×1

HQs:United Kingdom×3United States×2

Who they back

founder profiles across 8 portfolio companies

38%

solo founders

3 of 8 mapped founding teams

Founding team size:solo founder×32 founders×33 founders×14+ founders×1

Investments · 18 tracked

founders shown can be your intro path

By year:2026 · 5 2024 · 16 dated

Aisyaisy.ai inSeed · Feb 2026 · $2.3M

aisy builds an attacker-informed view of a customer's environment by connecting findings, assets, code, and engineering activity across a security team's existing tools, then uses that context to prioritize, triage, test, and fix vulnerabilities.

AI & Machine LearningCybersecuritySaaS

Co-investorsFlying Fish Ventures

ESProfileresprofiler.com in

ESProfiler helps security leaders understand, optimize, and maximize their security technology investments by mapping capabilities across frameworks, identifying gaps and overlaps, and reducing waste.

AI & Machine LearningCybersecurityEnterprise SoftwareSaaSManchester, GB

Louis Holt(CEO & Founder)Louis H(Founder)Joe Pavitt(Chief Product Officer)inJohn McCann(Chief Revenue Officer)in

Co-investorsNauta Capital

Mindgardmindgard.ai in

Mindgard provides AI security solutions that help enterprises identify, assess, and mitigate threats across AI models, agents, and applications throughout the AI lifecycle.

AI & Machine LearningCybersecurityEnterprise SoftwareBoston, US

Dr. Peter Garraghanin James Brear(CEO)in Aaron Portnoy(Head of Research)in Rich Smith(Offensive Security Lead)inNeeraj Suri(Founder)Peter Garraghan(Founder)

Co-investors.406 Ventures Atlantic Bridge Ventures IQ Capital Album VC Karma Ventures Lakestar

OnSecurityonsecurity.io in 𝕏

OnSecurity provides AI red teaming and penetration testing services to identify vulnerabilities in large language models and AI-powered applications.

AI & Machine LearningCybersecurityDeveloper ToolsEnterprise SoftwareSaaS

Conor O'Neill(Chief Executive Officer)Duncan Butchart(Chief Revenue Officer)in Adam Luxford(Chief Operating Officer)in

Co-investorsGresham House Ventures

Osspreyossprey.com in 𝕏Pre-Seed · Apr 2026

Ossprey detects supply chain attacks and malicious dependencies by monitoring code behavior at runtime, identifying packages that scan clean but behave maliciously.

AI & Machine LearningCybersecurityDeveloper Tools

Adam Mountain(Founder)in

Co-investorsEpisode1 Octopus Ventures

Overmindovermind.tech in 𝕏Feb 2026

Overmind is a platform that simulates the live production environment to show engineers the blast radius, dependencies, and risks of infrastructure changes before a pull request is merged.

Cloud ComputingDeveloper ToolsSaaS

Dylan Ratcliffe(Founder)inPavel Ronin(Founder)Yul Bahat(Founder)

Co-investorsMotive Force Operator Collective 14Peaks Capital Antler Kortschak Investments L.P.Portfolio Ventures +1 more

Overmindovermindlab.aiMar 2026

Overmind is an AI lab that lets engineering teams train and fine-tune smaller task-specific models for agent workflows such as labeling emails and calling APIs, then benchmark them against existing models.

AI & Machine LearningDeveloper ToolsEnterprise Software

Co-investors14Peaks Capital Antler Portfolio Ventures

Ployploy.ai in 𝕏

Ploy builds account plans for sales and marketing teams targeting high-intent accounts through coordinated multi-contact email outreach.

AI & Machine LearningEnterprise SoftwareMarketing TechSaaSSan Francisco, US

Bryant Chou(Founder)inBen Tzou(Head of Product Eng)

Co-investorsHyphen Capital Streamlined Ventures Y Combinator First Round Capital

Ployjoinploy.com

Ploy is an identity governance platform that automates joiner-mover-leaver processes, access reviews, permission removal, and audit evidence collection, using an AI agent called Luna.

AI & Machine LearningCybersecuritySaaS

Co-investorsFirst Round Capital SuperSeed Y Combinator

Refuterefute.com

Refute detects and responds to disinformation campaigns on behalf of organizations using quantitative data analysis and threat modeling across multiple channels.

AI & Machine LearningCybersecurityEnterprise Software

Tom Garnett(CEO & Co-Founder)inVlad Galu(CTO & Co-Founder)in

Co-investorsAmadeus Capital Partners Episode1 Playfair Capital

RevEngreveng.ai

RevEng.AI builds a verification platform for software supply chain integrity using AI models trained on binary analysis to identify vulnerabilities, malware, and security threats in released software in production.

AI & Machine LearningCybersecurityDeveloper Tools

James Patrick-Evans(CEO and Founder)in

Co-investorsEpisode1 In-Q-Tel IQ Capital

Seedataseedata.io

Enrico Faccioli(Founder)in

Co-investorsAviso Ventures Axeleo Capital Octopus Ventures

Sitehopsitehop.comFeb 2024

Sitehop provides encryption technology designed for real-time data protection that prioritizes speed and quantum-readiness.

CybersecurityDeep TechEnterprise SoftwareHardwareQuantum Computing

Melissa Chambers(Co-Founder and CEO)inBen Harper(Co-Founder and CTO)in

Co-investorsAmadeus Capital Partners Manta Ray Ventures Northern Gritstone Mercia Ventures

Strand Intelligencestrandintelligence.com in 𝕏Seed · Jun 2026 · $1M

The company builds tools for incident response and digital forensics professionals.

AI & Machine LearningCybersecuritySaaS

William Poole(Co-Founder & Chief Executive Officer)in

Other

Tracked investments with no reachable website or further public details — typically companies that wound down, renamed, or were absorbed.

Aviel TechnologiesHuntbaseSeDataStrand

Portfolio news

latest coverage across their companies

Lancaster University spinout Mindgard lands €26 million to secure enterprise AI systems

Mindgard · eu-startups.com · Aug 13, 2026

The 11 standout startups from YC's Demo Day, according to VCs

Ploy · techcrunch.com · Jun 18, 2026

Overmind launches with £2M in seed funding to support development of agentic AI

Overmind · tech.eu · Mar 9, 2026

Sitehop Raises £7.5m to Future-Proof Networks Against Quantum Threats | Sitehop

Sitehop · sitehop.com · Oct 9, 2025

Overmind Raises $6M in Seed Funding

Overmind · finsmes.com · Sep 17, 2025

Frequently asked questions

How many investments has Osney Capital made?: Osney Capital has 18 tracked investments, including 5 dated in the last 24 months.
What stage does Osney Capital invest at?: Osney Capital invests at the Pre-Seed, Seed, Series A stages.
What is Osney Capital's typical check size?: Osney Capital typically writes checks of $6.3M.
What sectors does Osney Capital focus on?: Osney Capital focuses on Cybersecurity.
Where is Osney Capital located?: Osney Capital is headquartered in UK, GB.
Who does Osney Capital co-invest with?: Osney Capital most often shares deals with Amadeus Capital Partners, Episode1, IQ Capital, among 18 tracked co-investors.

Media · Podcasts & interviews

featuring the team

Adam Cragg, Partner at Osney Capital. The Cybersecurity Investor

Between Meetings · Adam Cragg

Images

Co-investors · 12

Antler

Antler is a global early-stage venture capital firm that backs founders from company inception through to IPO, operating across roughly 30 locations worldwide and running cohort-based programs to help entrepreneurs build and scale companies.

Both backed · 1

Overmind

$125K

SOSV

SOSV is a deep tech venture capital firm that makes first-check pre-seed investments and follow-on rounds in startups focused on human and planetary health, providing lab space and hands-on support at its US locations.

$30K – $550K

Goodwater Capital

Goodwater Capital is a consumer technology investment firm backing entrepreneurs building products across financial services, retail, healthcare, education, housing, transportation, and ecommerce globally.

$5M – $50M

Amino Capital

AMINO Capital is a global venture capital firm based in Palo Alto that invests around the theme of data moat and network effects, focusing on big data, machine learning, and exceptional products.

$100K – $10M

Innovation Works

Innovation Works is a nonprofit early-stage investor supporting the growth of Southwestern Pennsylvania's tech economy through venture funding, accelerator programs, and ecosystem support.

$100K – $300K

Riverfront Ventures, LLC

Riverfront Ventures is an early-stage venture capital fund based in Pittsburgh that invests in early-growth stage technology companies, serving as the venture capital arm of Innovation Works.

$250K – $1M

Cleo Capital

Cleo Capital is a generalist venture capital fund founded in 2018 by Sarah Kunst, backing software startups at the earliest stages.

$100K – $1M

Avalancha Ventures

Avalancha Ventures is an early-stage venture capital firm that backs technology companies disrupting their target markets, providing initial funding and follow-on capital as they scale.

$300K – $2M

LvlUp Ventures

Quake Capital

Quake Capital Partners is a U.S.-based venture capital fund with a global presence that invests in early-stage startups across multiple sectors and geographies, offering hands-on training and leadership development.

Innova Memphis, Inc.

Innova Memphis is a seed-stage investment firm that funds and mentors early-stage, high-growth companies, currently focused on AgTech and FarmTech ventures with strong intellectual property or competitive advantages.

$2M

Startup Capital Ventures

Startup Capital Ventures is an early-stage venture capital firm with offices in Menlo Park, California and Honolulu, Hawaii, primarily investing in Silicon Valley companies with selective deals in Hawaii and other regions.

$250K – $1M

Firms observed investing alongside Osney Capital, from public investor directories. Shared companies are the overlap with Osney Capital's recorded portfolio.

Similar investors

Amadeus Capital Partners

Amadeus Capital Partners is a UK-based deep tech venture capital firm founded in 1997 that invests in technology companies from seed to growth stage. Since inception it has backed over 200 companies and raised more than $1.3 billion.

$50K – $12.7M

August Capital

August Capital is a venture capital firm that invests in a small number of companies, providing hands-on support to entrepreneurs building their businesses.