Series A Fintech companies in London

Companies modernising banking, payments, lending, and financial infrastructure. Filtered to Series A-stage companies headquartered in London.

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Ranked by current headcount across Series A Fintech companies in London. Refreshed daily.

1
PIB Insurance Brokers· London, England, United Kingdom
PIB Insurance Brokers (PIB) are a leading insurance broker with access to risk management services. We work with both businesses and individuals, making a real difference to your requirements through our combined skills, experience and partnership approach.At PIB Insurance Brokers, we invest time in getting to know you and can build bespoke solutions around your unique goals and challenges to provide security and peace of mind. Clients range from individuals and sole practitioners to small and medium-sized enterprises as well as large corporations.PIB Insurance Brokers is part of PIB Group, a dynamic group of specialist insurance advisory businesses. Our knowledge and experience is as diverse as our customers and their businesses. Through our strong partnerships with leading insurers, we can provide solutions to cater for all needs.PIB Insurance Brokers can offer all forms of commercial insurances and have recognised expertise in a wide range of specialist sectors.Our commercial offering is complemented by our Private Clients team, who deliver personally tailored insurance that is uniquely designed for you and your needs. Our experts specialise in arranging bespoke insurance programmes to protect and safeguard your assets and lifestyle. We understand how to provide an excellent and confidential service. Feel free to get in contact by sending us an email: info@pib-insurance.com or contact your local office https://www.pib-insurance.com/find-a-branch
- Series A
- 549 employees
- Founded 2014
2
R3· London, England, United Kingdom
R3 is a leading provider of RWAs and digital asset on Solana. For more information, visit www.r3.com.
- Series A
- 337 employees
- Founded 2015
3
XTX Markets· London, England, United Kingdom
We are a leading quantitative-driven electronic market-maker partnering with counterparties, exchanges and e-trading venues globally to provide liquidity in the Equity, FX, Fixed Income and Commodity markets. We provide consistent liquidity, helping market participants throughout the world obtain the best prices in the various assets classes we cover, regardless of changing market conditions.XTX Markets is a diverse organisation which attracts outstanding talent from across all industry backgrounds. We are focused on teamwork and our people collaborate on all aspects of the business, working openly and with respect for each other, our clients and the market. We strive for excellence in everything we do.At XTX Markets technology is our business. Our competitiveness is determined by the collective intellectual power of our people who collaborate on solving the most interesting problems in financial technology. Our culture is non-hierarchical and one where everyone is valued. Whether you are a computer programming or mathematics graduate, a website designer or an IT engineer – we have recruited and continue to recruit experts with a wide and eclectic array of skills. We are market leaders in what we do.
- Series A
- 303 employees
- Founded 2015
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4
BCB Group· London, England, United Kingdom
BCB Group is a leading provider of regulated payment, wallet and trading services for global businesses. Responding to corporate and institutional demand for essential and excellent infrastructure in digital asset markets, BCB Group was created by established thought leaders in finance, regulation and technology. Founded in the UK and developed to encompass key relationships across global financial services communities, our French EMI licence and regulation in the UK and Switzerland ensure BCB Group is well positioned as one of the first multi-jurisdictional regulated cryptocurrency service firms. Our mission is to deliver trusted infrastructure for global payments. Our vision is to advance money movement.Important Notice: We will never contact you about job opportunities through unofficial LinkedIn profiles or personal accounts. All legitimate recruitment activity comes only from our verified BCB Group company page and official @bcbgroup.io email addresses. If you've been approached by anyone claiming to represent BCB Group outside of these channels, please disregard the message and report the profile to LinkedIn.
- Series A
- 223 employees
- Founded 2017
5
Mojo Mortgages· London, England, United Kingdom
Mojo is a free online mortgage broker and part of the Houseful group of companies (Zoopla, Prime Location, Hometrack).We use cutting-edge tech and expert in-house advisers to make getting a mortgage feel less like the 1980s and more like the 21st Century.That means no taking time off work for appointments in a stuffy broker’s office, no waiting on hold for updates on your application, no piles of paperwork and, most importantly, no fees.At Mojo Mortgages we can compare thousands of deals from across the entire market giving you a personalised mortgage recommendation and a Mortgage in Principle in 15 minutes. What’s more, we’ll handle your entire application for you – making all the necessary phone calls and arrangements for you until your mortgage is in place.Whether they write code or help customers, everyone in our fast-growing team is united by a belief that getting a mortgage doesn’t have to be a headache.For mortgage advice without fees and an application process without fuss, visit us at mojomortgages.com
- Series A
- 204 employees
- Founded 2016

6
Deblock· London, England, United Kingdom
The first crypto wallet integrated with a current account.
- Series A
- 140 employees
- Founded 2022
7
Blink Payment· London, England, United Kingdom
Simple payments, one solution.Blink Payment is the all-in-one payment platform that helps UK businesses get paid faster, reduce admin, and reconcile with ease, whether it's online, in person, or over the phone, all from one dashboard.We serve SMEs across industries with complex payment needs – including, but not limited to, property management, solicitors, builders and timber merchants, storage and removals, tool and plant hire, and waste management – where getting paid on time genuinely matters.Beyond direct merchants, we partner with software providers to embed our payment infrastructure directly into their platforms. Through our API, software businesses can offer their customers a seamless, fully integrated payment experience, without building it from scratch.Our platform supports cards, open banking, digital wallets, and Direct Debit payments, paylinks, virtual terminals, batch payments, and repeat payments, with integrations into Xero, QuickBooks, and Sage.Trusted by thousands of UK businesses. UK-based support that answers in 6 seconds on average.For merchants: blinkpayment.co.uk/for-merchantsFor referral partners: https://www.blinkpayment.co.uk/referral-partnersFor integration partners: blinkpayment.co.uk/integrations-partners
- Series A
- 138 employees
- Founded 2012
8
wamo· London, England, United Kingdom
wamo is a European fintech company focused on making banking, finance, accounts and admin faster, simpler and more human for small businesses.Licensed and regulated by the Finnish Financial Supervisory Authority as a pan-European electronic money institution, wamo delivers the speed and simplicity entrepreneurs demand from a digital bank, plus personalised insight and hands-on human support to make life a little easier when things get complicated.Founded in 2021, wamo has headquarters in Helsinki and London.
- Series A
- 130 employees
- Founded 2021
9
Novatus· London, England, United Kingdom
We enable financial services firms to meet their most complex regulatory requirements through specialist technology and expert-led advisory services.
- Series A
- 119 employees
- Founded 2019
10
Titanbay· London, England, United Kingdom
Titanbay is Europe’s fastest-growing private markets infrastructure provider, offering asset managers and distributors a simpler, more controlled way to deliver private markets.Our integrated platform, together with our AIFM, combines technology, operations and regulatory oversight to support the full lifecycle of private market funds across Europe. From structuring and onboarding to capital flows, reporting and compliance, we provide the infrastructure partners need to launch, scale and manage sophisticated investment programmes.Whether your focus is raising capital, distributing funds or expanding your private markets offering, Titanbay streamlines complexity and enhances operational efficiency, enabling you to prioritise your clients and long-term growth.
- Series A
- 112 employees
- Founded 2019

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Find engineers at Series A Fintech companies in London

Searching for “engineers at top Series A Fintech companies in London” surfaces this slice of the market. The list above ranks Fintech companies headquartered in London whose latest disclosed round is Series A, by current headcount, drawn from public LinkedIn and Crunchbase records. With 119 matching companies in Refolk’s index, this is a tight read on where the Fintech talent in London is heating up.

Three filters at once narrows the field hard. The companies that survive all three - Series A, Fintech, in London - are usually the most targeted recruiting pool a hiring manager can ask for. Senior engineers, founding designers, and product leads here are about to become Fintech’s next operators and angel investors.

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Refolk pulled Fintech companies headquartered in London whose latest disclosed funding round is Series A from public LinkedIn and Crunchbase records, ranked them by current employee count, and kept those with at least 3 employees. The list refreshes once a day.

Last refreshed: Wed, 05 Aug 2026 21:28:54 GMT

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