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Working with Founders and Investors to  Make Innovation Happen

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Innovation is in our DNA

Born curious, we leverage decades of experience solving real world problems in early stage and multinational environments and we are focused on delivering results.

We collaborate with those driving change and growth through innovation and deployment of technology. We've worked with traditional companies including law firms, financial services companies and property companies as well as those with a specific mandate to innovate such as family offices, individual investors, investment syndicates, start ups and innovation driven enterprises across FinTech, RegTech, AgriTech, PropTech, B2C and B2B SaaS. 

We provide support on fundraising, investor readiness, scaling, creating business plans, project and strategic implementation and project management. 

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Our Experience Accelerating Ideas


We've developed a FinTech Business Plan and Model for a large international Family Office


We've designed a Business Plan and Implementation model for a new PropTech initiative 


We've raised funding for numerous startups in Irish and UK start up technology ecosystem


We're active as a Member of the advisory team of Circadian SAAS, a UK micro services company


We've supported Businesses as Board Observer at Hexafly, a sustainable AgTech company and Governor Software, a Global RegTech company


We're an official Business Mentor for Enterprise Ireland, Ireland's government agency for enterprise development and have mentored numerous start ups in Ireland


We've been Mentor, Investor Panelist and Judge at Accelerators and Start Up Organisations in Ireland and the UK


We have experience as an Expert Evaluator for the European Commission's EIC Accelerator Funding Program


We help and support founders and companies to become "Investor Ready" working through strategy, funding and scaling issues as well as financial analysis


We've invested in numerous early stage technology driven companies across Ireland and the UK.  CapF9 is an Accredited European Angel Fund Investor


We've been syndicate / deal lead on early stage technology investments across multiple sectors leading due diligence and deal assessment and execution of the legal documentation


We are an advocate for the Irish Start Up ecosystem as a regular conference speaker focused on themes around innovation, technology and investment

 Founders & Companies

We help founders and companies to prepare for fundraising and become investor ready


We support investors with startup due diligence, technical due diligence and deal support


We deliver business plans, internal strategic reviews and innovation and technology projects 

How we Help

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The Team

Barry Brennan

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Barry Brennan is Founder and Managing Director of CapF9. 

Barry has extensive experience advising a large variety of early stage, scaling and mature  Irish and UK enterprises in a variety of capacities as Advisor, Board Advisor, Syndicate Lead, Investor and Board Director across AgTech, FinTech, RegTech, PropTech, SaaS, Technology and Finance arenas.

Barry holds a LL.B. (Hons) Bachelor in Law from Trinity College, Dublin, a BSc (Hons) in Digital Technology, Design and Innovation from the Technological University of Dublin and a Diploma in Company Direction from the Institute of Directors. He was admitted as a barrister-at-law in England and Wales and as an attorney-at-law in New York State.


Barry has 25+ years international experience in law, corporate finance, venture investment and investment management at leading global financial institutions. Having developed, led and implemented innovative financial solutions throughout his career, he understands the challenges innovators face building new products and solutions.

Donal Carville


Donal is CapF9's Technical Advisor and Technical Assessor. 

Donal has been at the coalface developing and implementing technical solutions aimed at high-speed, low-latency, high-volume data streaming together with pattern-matching analysis using either traditional statistical or AI approaches.

He has experience across a variety of software engineering technologies, front- and back-end. Infrastructure-as-code is his favoured approach, primarily using the AWS suite, and he has years' of experience designing Serverless APIs.


Donal holds a Master’s degree in Engineering, Economics & Management from Oxford University. Amongst other outside interests, he also holds a directorship in a medical research company.


Donal has nearly twenty years’ experience in corporate and investment banking on both proprietary tradings desks as well as in corporate finance offices. Throughout his career he has fostered a love of data and used it to design oblique data harvesting methods to pair with pattern-matching research. 

Contact Us

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© 2020 by Circadian Saas / CapF9 Ventures Limited

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