Proptech firm Supa raises £21m backed by 2150 and OpenOcean
This article covers Supa, a London-based proptech startup, which has raised £21m in a seed funding round to accelerate acquisitions and develop an AI-led operating system for managing flats. The development targets the fragmented UK property management sector, seeking to support local managing agents and residents by boosting automation and operational efficiency.
Supa, a London-based block property management company, has raised £21 million in a seed funding round to accelerate acquisitions and develop its AI-led operating system for managing flats. The deal — equity co-led by 2150 and OpenOcean, with participation from KOMPAS VC, Actia Capital Partners and HEARTFELT, plus a debt facility from a UK lender — underlines investor interest in software-led solutions for the fragmented property management market.
Why it matters
The UK property management sector is estimated at £37 billion, but many small managing agents operate with legacy systems and teams of fewer than ten staff. Service charges in England and Wales averaged £2,405 in 2025, up a third in five years, yet residents frequently cannot account for what those charges cover and struggle to reach their managers. Supa’s financing signals investors are betting on consolidation and automation to improve resident experience and reduce administrative strain on property managers.
Inside the product
Supa buys established local managing agents, keeps their brand names and teams, and migrates operations onto an in-house AI platform. The software automates repair scheduling, service charge reconciliation, safety check upkeep and contractor follow-up, a set of tasks the company says can cut admin time for property managers by up to 90%. Supa also argues that each acquisition feeds data back into its AI operating system, improving outcomes for residents across its portfolio.
Since launch, Supa has acquired seven local managing agents and now manages roughly 20,000 homes. Recent purchases include Hunters in Sussex, FW Block Management in Hertfordshire and Lamberts in London. The company says revenue has grown more than 700% since its first two acquisitions in late 2025. Founders Calum Brannan and Alexis Johnson previously built digital property manager Howsy and sold it to Dexters in 2022. Founding engineer Gaspard Perrot previously worked at Signal AI and chairman Mark Opzoomer has held roles at Yahoo, Trint and Somo.
Who are the investors?
The round was co-led by 2150 and OpenOcean, with participation from KOMPAS VC, Actia Capital Partners and HEARTFELT. Supa also secured a separate debt facility from a UK lender to support further acquisitions and technology development.
In the announcement, Rahul Parekh, Partner at 2150, said:
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.
In the announcement, 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.
In the announcement, 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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Founder perspective
In the announcement, Calum Brannan, Co-founder & CEO at Supa, 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.
In the announcement, 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.
The bigger picture
Supa’s approach combines M&A with an AI layer that automates routine operations — a model attracting interest from investors who want software returns plus the revenue profile of traditional service businesses. The company’s growth and the £21 million seed round reflect a broader moment for UK proptech, where consolidation and digital tools are being used to address chronic operational issues in a large, fragmented market.
For policymakers and investors, the story highlights practical pressures in housing management: rising service charges, resident dissatisfaction and workforce strain. For the UK ecosystem, the financing is another example of capital flowing into startups that pair domain expertise with AI to modernise established industries.
They've invested in Supa
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| Investors | Investment Focus | Startup Investments | Round Size | Connect |
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 OpenOcean( ) OpenOcean is a pan-European early-stage venture capital firm focused on investin... Helsinki, Finland | ||||
 KOMPAS VC( ) Copenhagen, Denmark  | ||||
 Actia Capital Partners( ) London  | ||||
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