Top 10 Most Exciting New Startups in London

London has long been a breeding ground for innovation, with its dynamic mix of talent, investment and cutting-edge ideas.

From fintech to sustainability, AI to health tech, the city is bursting with ambitious startups that are shaking up industries and setting new trends. In many ways, London is an excellent location for launching a startup for plenty of reasons – access to capital, talent pool, standard of living and more.

There’s no doubt about the fact that London’s startup scene is one to watch.

But with so many new companies launching every year, how do we know which ones are truly worth keeping an eye on? It’s no secret that the startup scene is fickle and inherently unstable, so it can be incredibly difficult to identify burgeoning companies that are most likely to achieve long-term success. However, in many ways, that’s part of the fun.

Of course, there are several things that need to be considered when naming businesses some of the most exciting new startups in London, so we’ve based our list on factors including investment, creativity and innovation, market share, growth rate, early success and more.

10 Most Exciting New Startups In London

There’s no doubt about the fact that London is home to loads of ambitious entrepreneurs and oodles of exciting new startups. Here are 10 of the most exciting new startups on London in 2025.

Fnality International

Fnality International is pioneering blockchain-based payment systems to modernise wholesale financial markets.

In November 2023, they secured a £77.7 million Series B funding round led by Goldman Sachs and BNP Paribas, with participation from DTCC, Euroclear, Nomura and WisdomTree. This investment brings their total capital raised to £132.7 million.

Fnality’s innovative approach utilises Distributed Ledger Technology (DLT) to create a global liquidity management ecosystem, enabling real-time, 24/7 payment rails. This advancement significantly improves intraday liquidity management and reduces settlement cycles to real-time, addressing inefficiencies in traditional banking systems.

Their strong financial backing and cutting-edge technology set them in good stead for great success in London’s evolving financial landscape.

Crono

Crono is redefining personal finance management with its AI-driven budgeting and expense tracking app.

Launched in 2023, Crono makes use of machine learning to provide users with personalised financial insights and recommendations. Its unique feature set includes real-time expense categorisation, predictive budgeting and seamless integration with various financial institutions.

By empowering users to make informed financial decisions, Crono addresses the growing demand for intelligent financial management tools. While specific funding details are not publicly disclosed, Crono’s innovative approach and user-centric design make it a promising player in the fintech sector.

Zapp

Zapp is revolutionising the convenience store concept by offering rapid delivery of essential items within minutes. Founded in 2020, Zapp operates a network of micro-fulfilment centres across London, ensuring swift delivery of groceries, snacks and everyday necessities.

In January 2022, Zapp raised $200 million in a Series B funding round led by Lightspeed Venture Partners and 468 Capital. Their commitment to speed, coupled with a carefully curated selection of products, caters to the increasing consumer demand for immediacy and convenience, positioning Zapp as a leader in the incredibly competitive quick-commerce industry.

Penny Black

Penny Black transforms e-commerce packaging into personalised marketing channels. The company was established in 2021, and i enables online retailers to include customised messages, offers and QR codes within their shipments, enhancing not only customer engagement but brand loyalty too.

In June 2022, Penny Black secured £1.3 million in seed funding from AGFA and ninepointfive. By turning unboxing into an interactive experience, Penny Black addresses the need for differentiation in the competitive e-commerce market, offering retailers a unique tool to connect with customers beyond the digital realm.

Foundy

Launched in 2022, Foundy is an innovative marketplace facilitating the buying and selling of startups themselves. The company simplifies the acquisition process by connecting founders looking to exit with potential buyers, streamlining due diligence and negotiations.

While specific funding information isn’t publicly available, Foundy’s platform addresses a significant gap in the market by providing a transparent and efficient solution for startup acquisitions, benefiting both sellers and investors, and offering a service that, before Foundy, didn’t really exist in the mainstream.

Stability AI

Stability AI is at the forefront of artificial intelligence research, focusing on developing open-source AI models. The company was founded in 2020, and it gained prominence with its text-to-image model, Stable Diffusion, which democratises access to powerful AI tools.

Towards the latter half of 2022, Stability AI raised $101 million in a funding round led by Coatue, Lightspeed Venture Partners and O’Shaughnessy Ventures. Indeed, their commitment to open-source principles and cutting-edge research positions them uniquely to drive innovation and accessibility in the AI industry.

Grey Wolf Therapeutics

Established in 2017, Grey Wolf Therapeutics is pioneering immuno-oncology treatments by targeting previously undruggable cancer antigens.

The biotech firm focuses on developing therapies that enhance the immune system’s ability to recognise and attack cancer cells. Indeed, by April 2022, Grey Wolf Therapeutics had secured $49 million in a Series B funding round led by Pfizer Ventures and Earlybird Venture Capital. Their unique approach holds promise for more effective cancer treatments, addressing unmet needs in oncology.

Field

Field is upping the anti in the world of sustainability by accelerating the transition to renewable energy by developing large-scale battery storage solutions. The company was founded in 2021 and it aims to address the intermittency of renewable power sources by storing excess energy for use during periods of high demand.

In August 2022, Field raised £30 million in a Series A funding round led by Octopus Ventures. Their focus on energy storage is crucial for the stability and reliability of future energy grids, positioning them as key players in the sustainable energy sector.

Sway Money

Launched in 2022, Sway Money is redefining financial services for the gig economy by offering tailored banking solutions for freelancers and contractors. The company provides features like income smoothing, tax planning tools and access to financial products designed for non-traditional income earners.

While specific funding details arent publicly disclosed, Sway Money’s focus on an underserved market segment addresses the unique financial challenges faced by gig workers, positioning them for growth in the ever-evolving employment landscape.

Flawless

Flawless is revolutionising film production with its AI-driven visual effects technology. Their groundbreaking “TrueSync” tech allows for seamless lip-syncing in multiple languages, making dubbing both more realistic and more immersive.

This innovation has huge implications for the global entertainment industry, enabling films and TV shows to reach wider audiences with higher quality localisation.

With the rise of streaming platforms and international content distribution, Flawless is set to become an essential tool for the future of filmmaking.