Series B Fintech companies in London

GoHenry is the money app giving 6-18-year olds a head start in life as they learn to earn, save, spend and invest - all with parental oversight. Having pioneered a new category in financial education when it launched in 2012, over 2.2 million kids have now learnt money skills with GoHenry.With the ultimate goal to make every kid smart with money, GoHenry believes the best way to learn is to get hands-on experience with money. Its parent and child apps help kids to Learn (via in-app, bite-sized money lessons, Money Missions); Earn (via regular chores, one-off tasks and giftlinks); Spend (responsibly via its prepaid debit card and real-time notifications); Save (via savings goals and interest on savings); Give (via regular micro-donations to the NSPCC); and Invest (via GoHenry’s Junior ISA).As a mission-led business, GoHenry is leading the push for financial education to be made compulsory in all schools across the UK from primary age. Follow GoHenry’s journey on LinkedIn, Instagram, and TikTok (@gohenry).

• Series B
• 222 employees
• Founded 2012

ESG Book and EthiFinance have merged! A new champion for European Sustainable Finance. Learn more at: https://www.ethifinance.com/.ESG Book is a global leader in sustainability data and technology. Launched in 2018, the company offers a range of ESG and climate solutions that are used by many of the world’s leading investors and companies. Covering over 50,000 companies, ESG Book’s product offering includes ESG raw data, company-level and portfolio-level scores and ratings, analytics tools, and a SaaS data management and disclosure platform. ESG Book’s solutions cover the full spectrum of sustainable investing including ESG, climate, net-zero, regulatory, and impact products. ESG Book enables clients to access over 135,000 corporate disclosures, with solutions delivered through API technology for seamless integration. ESG Book’s platform makes sustainability data more widely available and comparable for market stakeholders, enabling companies to be custodians of their own data, providing framework neutral ESG information in real-time, and promoting transparency.Through our SaaS data management and corporate disclosure platform, ESG Book enables clients to assess over 50,000 corporate disclosures, with solutions delivered through the API technology for seamless integration. ESG Book’s platform makes sustainability data more widely available and comparable for market stakeholders, enabling companies to be custodians of their own data, providing framework-neutral ESG information in real-time, and promoting transparency.

• Series B
• 193 employees
• Founded 2017

Verify if your documents are real or fraudulent with AI. Resistant AI is the industry-leading document fraud detection system with more than 200M documents analyzed for fraud.Detect fraud in all types of documents:• Bank statements• Pay stubs• IDs• Utility bills• Tax forms• Etc.In all formats (PDFs, images). In all languages.Manually, with a simple drag and drop. Or automatically, using our API.And see if documents are fake, modified and fraudulent, in less than 20 seconds.Detect document fraud in: • Digital lending / Loan underwriting• Customer onboarding (KYC)• Merchant onboarding (KYB)• Tenant screening• Pre employment background checks• Insurance claimsAnd achieve: • 90% less manual reviews• 60% faster fraud checks• 80% of documents approved instantly• 99% accuracy in document verdicts200M+ docs analyzed. 8K+ fraud & compliance analysts using Resistant AI to detect fraud. 500+ detectors. 100+ patents. Digital Crime Fighter of the Year. Twice Winner of ACAMS'PwC Hackathon. Backed by GV, Index Ventures, Credo Ventures, Seedcamp.

• Series B
• 166 employees
• Founded 2019

At Monument, we’re changing banking for the mass affluent with a new approach- exceptional client service, straightforward savings, innovative wealth-tracking tools and curated lifestyle experiences that help you build and enjoy your wealth. Based in London, we’ve quickly grown into one of the fastest-growing fintechs in the UK & Ireland (Sifted 100 2025) and are trusted with over £6 billion in savings. Our savings products include Easy Access, Limited Access, Fixed Term Deposits, Notice Accounts and an Easy Access Cash ISA.

• Series B
• 152 employees
• Founded 2017

Runa is pioneering a first-of-its-kind payment rail capable of sending and accepting digital value at scale. With Runa, companies can pay the people they serve in any form of digital value, anywhere, instantly. Legacy payment mechanisms struggle to adapt to low-volume, high-velocity transactions both locally and globally, such as sending payouts to gig workers, creators, or sending rewards to customers or employees wherever they are. Runa’s infrastructure and network facilitates payouts to these recipients, helping businesses expand their reach, retain their users while modernizing the way in which they manage and transfer money: instantly, internationally, and free of charge for the senders and the recipient.Operating in more than 30 countries and 18 currencies, hundreds of leading companies rely on Runa to power instant, flexible global payouts including Sodexo, TopCashback, Perkbox, Vodafone, Coinbase and Globetopper. We are committed to providing a hiring and working experience in which all people feel they are equally respected and valued regardless of race, religion, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status.

• Series B
• 126 employees
• Founded 2016