Top 5 Oil and Gas Startup Investors in Ireland (July 2026)

Atlantic Bridge is a Growth Equity Firm with a Cross Border Value Add strategy. We invest in deep technology companies in Europe and the US. Our team is made up of successful entrepreneurs and senior technology industry executives and we invest in strong ambitious entrepreneurs and management teams that have the passion and drive to scale up andexploit major growth opportunities. We help our portfolio companies expand and grow internationally through our global platform with our team and offices in London, Dublin, Munich, Paris and Palo Alto.Atlantic Bridge brings together a unique team of technology entrepreneurs, experienced managers, finance professionals, and investment experts. The team contains a wealth of international business experience across Europe, the UK and the US. They have worked together in various capacities for the last 30 years, bringing a true partnership approach to their firm and their investments. Its investors include the founders, leading institutional investors, and private investors with a track record of investment in successful technology companies.Atlantic Bridge has developed a unique and differentiated strategy that focuses on specific technology themes and the implementation of the “Atlantic Bridge Model” for scaling companies internationally. The “Bridge Model” accelerates the scale-up of technology companies in Europe and the US. This approach is highly differentiated and has delivered strong performance results to date.

Investment focus

Industry: Software, Information Technology, Artificial Intelligence
Stage:Series A, Series B
Geography: United States, Ireland, United Kingdom

Investor stats

Total investments: 142
Round size: Series A $4.5M–$26M; Series B $10M–$62M
Lead/follow: 41% lead, 59% follow
Last fund: May invest from a new fund soon — raised $88M in 2021

Portfolio highlights

Aizon — Improve yield, reduce deviations, and ensure product quality in GxP pharmaceutical manufacturing with real-time, practical Artificial Intelligence (AI)- powered software as a service solutions.
Aiqudo — Aiqudo offers an artificial intelligence-based technology that connects voice computing to the mobile app ecosystem. Its Voice-to-Action platform lets people use natural voice commands to instantly execute actions in their mobile apps. The company was founded in 2017 and is headquartered in Campbell, California.
Neurent Medical — Discover NEUROMARK, a minimally invasive solution for Chronic Rhinitis that targets the posterior nasal nerve to provide lasting symptom relief.

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Barry Downes is an experienced technology investor, entrepreneur and technologist with extensive domain experience in Artificial Intelligence, Security Technologies and Immersive Technologies. Barry is Managing Partner and Co-Founder of Sure Valley Ventures, which he founded in 2017. He is a software founder turned investor, having founded severaltechnology businesses throughout his career, including FeedHenry, a leader in mobile cloud technologies, which was sold to Red Hat/ IBM in 2014. Previously, Barry was CEO of the leading academic software research and futurist institute, the Walton Institute, which worked with many of the top Silicon Valley and European global software companies on advanced technology research and futurist projects. He is also an advisor to the European Commission’s European Innovation Council, which is focused on developing Europe’s next unicorns with an allocated budget of over €1 billion.Barry holds a BSc in Applied Computing from Waterford Institute of Technology, an MBA from Smurfit Business School, University College Dublin and executive qualifications from Henley Business School in the UK, Harvard Law School in Cambridge, Massachusetts and Haas School of Business at the University of California, Berkley, in Venture Capital. He is also a Certified Investment Fund Director (CIFD), awarded by the Institute of Banking (IOB) and is registered with the FCA.

Investment focus

Industry: Software, Artificial Intelligence, Information Technology
Stage:Seed, Series A, Series B
Geography: Ireland, United Kingdom

Investor stats

Total investments: 13
Lead/follow: no public data

Portfolio highlights

Ambisense — Since 2014 Ambisense has been driving innovation within the environmental space. Their technology platform optimizes the delivery of environmental risk assessment on some of the world’s largest infrastructure projects across industrial, O&G and waste verticals. Ambilytics encompasses both IoT and ML solutions, combining information fromremotely deployed field devices with contextual data sources such as weather, satellite, geophysical and operational data to build machine learning models. These models identify the relationships, patterns, and drivers hidden within the data and allow our customers to forecast and predict the behaviour of targeted environmental pollutants.
RETìníZE — RETìníZE is an AR, VR, multi-screen installations, and software development.
Stylus — Stylus automates the assessment and feedback procedure in schools by using artificial intelligence.

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We invest in entrepreneurs with the ambition to create world-class companies of scale.

Investment focus

Industry: Medical Device, Health Care, Big Data
Stage:Seed, Series A, Series B
Geography: Ireland, United States

Investor stats

Total investments: 31
Round size: Seed $823k–$3.8M; Series A $3.1M–$12M; Series B $16M–$80M
Lead/follow: 58% lead, 42% follow

Portfolio highlights

AYLIEN — Aylien is an artificial intelligence startup that focuses on creating technologies that help machines understand human languages better. The firm provides Text Analysis and News API's that allow users to make sense of human-generated content at scale. AYLIEN also provides a range of content analysis solutions to developers, data scientists,marketers and academics. Their core offerings include packages of information retrieval, machine learning, natural language processing and image recognition APIs.
Siren — Siren is a software company that provides an Investigative Intelligence platform to complex organizations and derive business value. The platform provides a unique combination of search, business intelligence, big data, link analysis and knowledge representation which advances the way organizations address some of the world’s most importantdata-driven problems.Siren makes it easier to use the data you collect to answer questions and make links, find patterns and relationships. It also uniquely enables this in real-time at a scale that companies and government organizations require. it easy to leverages and deploy data directly on backends such as Elasticsearch, relational databases, virtual data warehouses, and graph databases.Siren was awarded the Technology Innovation of the Year and Enterprise of the Year (SME) at the Information Technology Association of Galway (ITAG) Excellence Awards and also was named the Irish Startup of the Year at Ireland’s National Tech Excellence Awards.Siren was founded in 2014 and is based in Galyway, Ireland.
ProVerum Medical — The ProVee stent from Proverum Medical uses 3-D geometry which mirrors and engages with the anatomy of the prostate. The system alleviates Lower Urinary Tract Symptoms (LUTS) by opening the prostatic urethra, applying radial force to the prostatic lobes.

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Sure Valley Ventures is an entrepreneur-led Venture Capital Fund that invests in early-stage software companies. Working in partnership with Shard Capital, a specialist broker and asset manager based in the City of London, Sure Valley Ventures specializes in investing in Augmented Reality (AR) and Virtual Reality (VR), Financial Technology(FinTech), and the Internet of Things (IoT) Sectors.

Investment focus

Industry: Software, Artificial Intelligence, Information Technology
Stage:Seed, Pre-Seed
Geography: United Kingdom, Ireland

Investor stats

Total investments: 56
Round size: Seed $823k–$5.9M; Pre-Seed $1.5M–$6.2M
Lead/follow: 46% lead, 54% follow
Last fund: Likely still investing — raised $35M in 2023

Portfolio highlights

ManaMind — ManaMind is an AI-powered platform that automates video game quality assurance (QA) testing using autonomous bots to help developers identify bugs faster and cheaper.
Smarttech247 — Human-led, AI-enhanced Managed Detection & Response. 24/7 SOC monitoring, incident response, and cyber resilience for critical infrastructure.
CameraMatics — Digitize fleet management to optimize performance. Onboard sensors, smart cameras, & apps to mitigate risk, manage safety & achieve sustainability goals.

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