Supa, an AI-native platform in UK apartment block management, has raised £21 million in seed funding.
The round includes equity funding co-led by 2150 and OpenOcean, with KOMPAS VC, Actia Capital Partners, and HEARTFELT, and a debt facility from a major UK lender.
Supa is rebuilding block management by acquiring established local block management firms, keeping their identity, and rebuilding their operational layer with Supa’s proprietary AI operating technology infrastructure.
The software takes on the paperwork that slows agents down, such as scheduling repairs, reconciling service charges, keeping safety checks up to date, and chasing contractors. It says this frees property managers to spend up to 90% less time on admin, so they can be out in the buildings and answer residents the same day.
Since its first two acquisitions in late 2025, Supa’s revenue has grown more than 700%. Around 20,000 homes are now under Supa management and experiencing service outcome improvements.
Recent additions to Supa’s portfolio of seven local managing agents include Hunters in Sussex, FW Block Management in Hertfordshire, and Lamberts in London.
Calum Brannan, Supa co-founder and CEO, said: “Residents are paying more every year and too often getting less. Bloated portfolios and ageing systems leave residents with their calls going to voicemail. We’re doing the opposite.
“We keep the local firms, take the admin off their desks, and put managers back inside buildings instead of behind a phone queue. Everyone should know what their service charge pays for, and get an answer when they call.”
Finella Taylor, CEO of FW Block Management, said: “It was very important to me to preserve the legacy of our company. Supa understood that. They weren’t looking to rebrand us, they wanted to keep our identity, which is why I’d recommend them to any managing agent looking to sell.”
Brannan and chief product and technology officer Alexis Johnson previously built Howsy, the UK’s largest digital property manager, and sold it to Dexters in 2022. They are joined by founding engineer Gaspard Perrot, formerly of Signal AI, and chairman Mark Opzoomer (Yahoo, Trint, Somo).
Rahul Parekh, partner at 2150, added: “Property management operates with tools that feel decades overdue, and Calum and Alexis saw the opportunity to change that completely. Their vision for Supa is to become the intelligence layer for how buildings are run, starting with scaling their block management platform.
“We believe Supa can redefine what great property management looks like, and we’re excited to back them on that journey.”
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Sam Hields, partner at OpenOcean, said: “Supa is one of the clearest examples of AI improving a real-world service at scale. Calum and Alexis are bringing together the technology, the data and the businesses needed to make it work, and we’re delighted to back them.”
Sebastian Peck, founding partner at KOMPAS VC, said: “When a block is well-managed, it operates quietly in the background; when it’s poorly managed, it can negatively impact residents’ finances, safety, and daily quality of life.
“Supa is harnessing the power of agentic AI and economies of scale to lift industry standards, improving communication, responsiveness, and quality of service delivery. We are very proud to back the founders and their extraordinary team as they build a category-leading property management business with global ambitions.”
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