London scale-up Lottie acquires CareMaster in bid to bring social care into the digital age with AI

• Accel and General Catalyst-backed Lottie has acquired 25-year-old care billing software provider CareMaster, bringing decades of specialist expertise into its push to positively transform social care.
• It is Lottie’s second care software acquisition, following Found in 2022, which it has since rebuilt as an AI-native platform to cut manual admin and give care teams more time to focus on delivering higher-quality care.
• Heading into 2027, Lottie plans to accelerate its deployment of AI to help care providers cut manual work, operate more efficiently and drive profitability, as the UK social care sector faces growing financial and workforce pressures.
• Recognised by Deloitte, Sifted and The Sunday Times, Lottie is one of the UK’s fastest-growing scale-ups: by the first half of 2027, it expects Found to support £3 billion in annual invoicing for care providers, up from more than £1 billion through Found today.

London, [6th October 2026]: Accel and General Catalyst-backed healthtech scaleup Lottie has acquired 25-year-old care billing software provider CareMaster, its second care software acquisition, as it expands its use of AI to tackle some of the most time-consuming manual processes still underpinning the UK’s strained social care sector.

The acquisition comes as the social care sector faces increasing pressure to digitise, with rising demand and more complex care needs putting already stretched budgets and workforces under further strain.

Councils in England ended 2025/26 £715m over budget as care costs rose for the fourth consecutive year, while adult social care is still carrying around 96,000 vacancies – a vacancy rate three times higher than the wider economy. 

Against that backdrop, Lottie has spent the past four years developing market leading care specific technology to overhaul some of the age-old manual customer processes behind social care, including how providers manage care enquiries, occupancy, billing and other time-consuming administrative tasks.

It acquired Found in 2022, when the care CRM was used by fewer than100 care home locations. Since then, Lottie has rebuilt the platform from the ground up as AI-native, expanded it into home care and supported living, and will have grown it to nearly 2,500 UK care services by the end of 2026

CareMaster builds on that progress, bringing 25 years of specialist expertise in one of the most complex and admin-heavy parts of running a care business: billing, payments and credit control. 

Founded by Bob Grimshaw and Colin Rooke, CareMaster works with nearly 75 care providers representing more than 750 care home locations across the UK. The acquisition brings that customer base onto Found, alongside the pair’s decades of experience in care billing software.

Lottie expects Found and CareMaster to support £3bn in annual invoicing for care providers by the first half of 2027, up from more than £1 billion through Found today and a projected £2 billion by the end of 2026, as the sector contends with rising costs and staffing shortages.

Recognised by Deloitte, Sifted and The Sunday Times, Lottie is one of the UK’s fastest growing scaleups and Found – the company’s AI Revenue OS – is on track to treble its number of paying providers using the software by the end of 2026. 

Heading into 2027, the business is targeting record commercial growth, with international expansion also planned as Lottie looks to take its next stage of growth beyond the UK.

Building on the acquisition and starting with credit control, Lottie plans to use AI to reduce the manual admin involved in running a care business, before expanding its software into new areas across the wider customer journey from a family’s first enquiry about care through to a provider getting paid.

Will Donnelly, Co-Founder and CEO of Lottie, said:

“Social care is one of the largest service-led industries globally, but behind the delivery of care, there is still a huge amount of administration and manual work involved in running a care business. That makes it a sector where we believe AI can have a hugely positive impact – reducing administrative burden, improving efficiency and freeing up teams to spend more time on what matters most: serving prospective customers and delivering great care. Crucially, we believe that can all happen while preserving the deeply human-led nature of the industry.

“We’ve already seen what’s possible with Found. When we acquired the business in 2022, it was supporting fewer than 100 care home locations. By the end of 2026, it will support nearly 2,500 care services, and we’ve rebuilt the platform from the ground up to be AI-native.” 

“Acquiring CareMaster has given us access to 25 years of specialist knowledge in one of the most complex parts of running a care business and an opportunity to deliver better for more care providers.” 

“We see first-hand how stretched care teams already are, yet there is still so much time spent on manual work that simply doesn’t need to be there. Having built the industry’s leading care billing software, payments and credit control are what we’re tackling next, but our ambition goes much further. We want to remove more of that admin across the entire customer journey, from a family first looking for care through to a provider getting paid, freeing up care teams to focus their time where it really matters.”

Having established Found as the market-leading Revenue OS for UK care, 2027 is set to be Lottie’s most ambitious chapter yet – accelerating product innovation to deliver better outcomes for families and care providers, expanding internationally and taking another major step towards our mission of building the future of care. The team and I can’t wait for what’s in store!”

Bob Grimshaw and Colin Rooke, Co-Founders of CareMaster, said:

“Joining the Lottie team over the past 24 months has been a brilliant experience. It’s clear that Will and the wider Found team care as much about our partners as we do.

“We’re confident Lottie is the right home for CareMaster, and we couldn’t be more excited to see our partners migrating to a far more advanced, future-proofed platform.”

ENDS

About Lottie

Founded with a mission to build the future of global care, Lottie is creating the AI operating system for social care – designed to unlock profitability for care providers and to make finding care for families as easy as booking a holiday on Airbnb.

Launched in London in July 2021, Lottie has raised over £25m from tier 1 venture capital funds (Accel and General Catalyst) and is widely recognised as one of Europe’s fastest growing tech companies. Most recently, Lottie was the acclaimed winner of Deloitte Fast 50, LinkedIn Top Startups, The Sunday Times Tech 2026 and Startups 100.

About CareMaster

CareMaster is a billing and resident finance software provider for the UK care sector, founded over 25 years ago by Bob Grimshaw and Colin Rooke. It works with nearly 75 care providers representing more than 750 care home locations across the UK.