
Iona Star
Venture Capital
Iona Star LP, launched in 2024, is a venture capital fund focused on investing in and developing disruptive early-stage companies to accelerate technology innovation through artificial intelligence (AI) and data.
Investment Background
Castelnau identified Iona Star as an opportunity to gain exposure to early-stage AI and data-driven technology companies while also generating strategic benefits across the wider portfolio. The fund's focus on disruptive technology aligns with Castelnau's broader ambition to drive digital transformation across its portfolio companies, creating a bridge between cutting-edge innovation and established businesses.
Investment Focus
The fund targets high-growth sectors such as financial services, cybersecurity, life sciences, industrial internet of things, telecom, and energy, seeking to capitalise on the transformative changes within these industries. Iona Star aims to drive innovation in these areas by identifying opportunities with the potential for rapid expansion and technological leadership.
Proven Track Record
The team at Iona Star have a track record of success, having delivered returns of >3x on invested capital on their previous fund. This proven performance demonstrates their ability to identify and nurture high-potential technology companies.
Investment Strategy
With a high-conviction investment strategy, Iona Star employs a thorough research process to carefully select companies that benefit from the latest advances in AI, machine learning, distributed ledger technology, tokenisation, streaming analytics and streaming data.
Experienced Leadership
The fund is led by a highly experienced team, including Gerry Buggy, Mike Powell, Graham Ferguson, and Kevin McGivern, who bring deep expertise as founders, C-suite executives, and senior leaders.
Their hands-on experience in building, scaling, and managing companies enables them to provide not just capital investment but also strategic guidance, networking support, and specialist industry insights to help portfolio companies scale effectively in competitive markets.
Strategic Partnerships
Castelnau Group have invested up to £10m in the fund, as have Frasers Group. Frasers Group are a key partner, with significant amounts of data that will facilitate the learnings of Iona Star portfolio companies.
Value Creation
By fostering collaboration between early-stage tech investments and established brands within the portfolio, Iona Star can accelerate the adoption of AI-driven innovations across sectors, enhancing operational efficiency and expanding digital capabilities.
As a standalone investment, we see strong potential for value creation in their investment strategy, reinforced by their track record of returns. Additionally, their involvement provides significant strategic benefits to Castelnau Group beyond financial performance.


