Other winners on the night included Protex AI, which took home the Rising Star Award at the annual Irish business ranking.
Belfast’s StormHarvester has been announced as Ireland’s fastest growing technology company at the annual Deloitte Technology Fast 50 awards.
StormHarvester, which was founded in 2012 by former civil drainage engineer Brian Moloney, uses an advanced AI-powered anomaly detection system to analyse data from thousands of sensors to help wastewater utilities predict and prevent issues such as flooding and pollution.
At the start of this year, the company announced an £8.4m fundraise that would allow it to double its workforce over the next three years.
The company received the accolade at a ceremony in the Mansion House in Dublin, which Moloney described as a “special moment” for the StormHarvester team.
“What started as an idea over 10 years ago in Australia for a solution that would reduce the impact of flooding has grown into a proud Belfast-based business that is going from strength to strength,” said Moloney, who is also CEO. “In the last year alone, our funding has enabled us to double our headcount, which will help us fuel our expansion further and create even more exciting opportunities in Ireland.
“The Deloitte Fast 50 Awards recognition is a chance to pause, reflect and celebrate all that we have achieved and all that we plan to achieve in the years ahead.”
The Technology Fast 50 awards, now in its 26th year, ranks Ireland’s 50 fastest growing tech companies based on revenue growth over a four-year period.
Another notable winner on the night included workplace safety start-up Protex AI, which received the Rising Star award for demonstrating “a promising growth trajectory and the potential for inclusion in the Fast 50 rankings in years to come”, according to Deloitte.
“Since founding Protex AI, our mission has been to enable organisations to use data-driven insights to drive safer workplaces and unlock meaningful operational efficiencies,” said Dan Hobbs, co-founder and CEO of Protex AI. “The growth of our team and client base has made achievements like this possible, and we are thrilled to celebrate receiving the Deloitte Fast 50 Rising Star Award and to meet the incredible tech entrepreneurs in the rankings.”
Other awardees included Aerlytix, which received the Growing New Technology Award; Jac Dunne, CEO of Dimply, who was given the Advocate for Women in Tech Award; Alchemy, which received the Impact Award; Mail Metrics, which bagged the Scale Up Award; and Grid Finance, which received the Financial Services Innovation Award.
The Deloitte 2025 Technology Fast 50 winners generated a cumulative €1.76bn in total annual revenues, with an average growth rate of 442pc. The 50 companies employ more than 7,500 people and 12 of the ranked companies were first-time winners, according to Deloitte.
James Toomey, partner and Fast 50 lead at Deloitte Ireland, said that the combined revenues of the Fast 50 companies “is a powerful symbol of the exceptional talent and innovative thinkers we have in Ireland”.
“Despite a challenging external environment, Fast 50 companies are still growing, which is a real signal of confidence,” he said.
“A standout from this year’s awards is that companies with artificial intelligence (AI) embedded in their operations are seeing the biggest growth, but access to skilled employees who can prompt and deploy AI effectively will be crucial.”
Last year, e-commerce financing start-up Wayflyer took home the top prize at the Technology Fast 50 Awards, while fintech Swoop received the accolade in 2023.
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