About Iona Star
Iona Star is a venture capital firm founded in 2023. It is primarily based out of Belfast, United Kingdom. As of Sep 2026, Iona Star is an active investor, having invested in 4 companies, with 3 new investments in the last 12 months. It primarily invests in Seed round in United Kingdom based startups. Its investments are spread across a wide range of sectors from Enterprise Applications to High Tech and FinTech. Most recently it participated in the $***** Seed round of OriginalVoices A lot of funds co-invest with Iona Star, with names like CDAM sharing a substantial percentage of its portfolio. Iona Star has team of 5 people including 3 partners.Key Metrics
Team Members
Portfolio Count
Portfolio Sectors
Portfolio Locations
Rounds of Entry
Seed & Series C
Deals in last 12 months
Iona Star's List of All Investments
Iona Star has a portfolio of 4 companies. Their most notable investments are in OriginalVoices and Worldmodeldata.Their portfolio spans across United Kingdom and South Korea. They have invested in Enterprise Applications, High Tech, FinTech, across Seed, Series C stages. Here is the list of all investments by Iona Star:
1. Hyperlayer
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Key facts about Hyperlayer
- Founded Year: 2023
- Location: London (United Kingdom)
- Stage: Series C
- Total Funding till date: $40M
- Employee Count: 78 as on Aug 31, 2026
- Investors: SIG, Mouro Capital and 3 Others
- Latest Funding Round: Series C, Oct 16, 2025, $*****

2. CUBIG
Developer of an AI-ready data platform for enterprise AI execution. It is a developer of an AI-ready data platform that prepares enterprise production data for use in AI training, evaluation, and execution. Its platform, Syntitan, diagnoses enterprise data across six readiness axes covering usability, integrity, context, consistency, reproducibility, and traceability, brings the data to an AI-ready state, seals each prepared dataset into a fixed release state identified by a content hash, and binds every AI run to that state, so a team can reproduce the data state behind an earlier result and compare what has changed. Syntitan works alongside existing storage, pipeline, and catalogue tools rather than replacing them. Two engines run inside the platform. DTS transforms scarce, imbalanced, or low-quality data into datasets that models can train and evaluate on, extracting statistical characteristics without moving the original. LLM Capsule is a context-preserving data layer that lets LLM, RAG, and agent workflows run on data that cannot leave in its original form, replacing designated values with structure-preserving substitutes and reconstructing usable output inside the customer-controlled environment.
Key facts about CUBIG
- Founded Year: 2021
- Location: Seongnam (South Korea)
- Stage: Seed
- Employee Count: 39 as on Aug 31, 2026
- Investors: IBK Capital, Intops Investment and 6 Others
- Latest Funding Round: Seed, Aug 13, 2025, $*****
- Highlight: Editors' Pick
Provider of game engine datasets for training artificial intelligence models. These datasets consist of synchronized video, telemetry, and ground-truth state information extracted from interactive software environments. The information includes action-conditioned trajectories, physics-based vectors, and structured annotations for every frame. This data supports the development of systems that require understanding of state, motion, and consequence within simulated environments. The output is delivered in standard file formats for use in machine learning research and model development.
Key facts about Worldmodeldata
- Founded Year: 2025
- Location: United Kingdom
- Stage: Seed
- Total Funding till date: $9.26M
- Employee Count: 9 as on Aug 31, 2026
- Investors: Iona Star
- Latest Funding Round: Seed, Dec 2025, $*****
Provider of digital twins for querying human perspectives via software. This service allows users to access simulated human feedback to inform decision-making and content generation. The platform integrates with various development environments and artificial intelligence tools to facilitate research. Users define target audiences to receive responses based on trained models of real individuals. These insights assist in validating messaging, testing creative concepts, and optimizing marketing materials. The system operates through application programming interfaces to provide feedback for automated workflows.
Key facts about OriginalVoices
Iona Star's Year-on-Year Investment Trends
In 2025, it made 3 investments, while as of Sep 2026, it has made 1 investment in this year. Its most recent first time investment was in OriginalVoices.Iona Star's Investments by Stage
Iona Star has made 3 investments in Seed stage with an average round size of $5.3M and 1 investment in Series C stage with an average round size of $40M.Stage of entry | No. of Investments |
|---|---|
Seed | 3 |
Series C | 1 |
Note: We have considered here, only first round of investments
Iona Star's Investments by Sector
Iona Star has a diverse portfolio, with companies operating in the Enterprise Applications, FinTech and High Tech. Notably, it has invested in 4 Enterprise (B2B) companies, 3 Software companies, 3 Tech companies and at least 2 companies focusing on Saas.Sector | No. of Investments |
|---|---|
Enterprise Applications | 3 |
FinTech | 1 |
High Tech | 1 |
Note: We have considered here, only first round of investments
Iona Star's Investments by Geography
Iona Star has made most investments in United Kingdom (2), followed by South Korea where it has made 1 investment.Country | No. of Investments |
|---|---|
United Kingdom | 2 |
South Korea | 1 |
Note: We have considered here, only first round of investments
Iona Star's recent investments
Iona Star has made 1 investments in 2026 so far - OriginalVoices.Here are the most recent investments by Iona Star:
Date | Company | Location | Round Details | Round Amount | Co-Investors |
|---|---|---|---|---|---|
Sep 15, 2026 | - | Seed | 1319 | - | |
Dec 2025 | United Kingdom | Seed | 7626 | - | |
Oct 16, 2025 | United Kingdom | Series C | 1560 | [+3] | |
Aug 13, 2025 | South Korea | Seed | 5717 |
Team profile of Iona Star
Iona Star has a team of 5 members including 3 Partners located in United Kingdom. Iona Star's team does not sit on the board of any company as of now.Here is a list of all team members in Iona Star:
Name | Designation | Location | Board Memberships | Contact Details |
|---|---|---|---|---|
Partner | London | - | - | |
Partner | London | - | ||
Partner | London | - | ||
Partner | Muckamore | - |
Co-investors of Iona Star
Over the past year, 11 investors have co-invested in Iona Star's portfolio companies. This includes only funds.
- Invested before Iona Star: NAVER D2 Startup Factory, VNTG and 4 others have invested in rounds before Iona Star. There is 1 company where NAVER D2 Startup Factory has invested before Iona Star and 1 company where VNTG has invested before Iona Star.
- Top Co-investors of Iona Star: 5 investors entered a company along with Iona Star. These include investors like CDAM (1 company).
Recent News related to Iona Star
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CUBIG secures Series A funding, totaling 9 billion KRW, accelerates European market entryWowtale•Aug 13, 2025•Iona Star, Cubic, Capital Bikeshare, Naver and 2 others
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Iona Star LP announces £22M first close of new AI and data fundTech.eu•Oct 04, 2024•Iona Star, Castelnau Group, Frasers Group
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