FinTech + London
Best FinTech AI Agencies in London (November 2026)
18 FinTech-specialized AI agencies based in London. Top-ranked: Satalia, Datatonic, Faculty.
17 of the 18 agencies listed have documented FinTech client work, verified against published case studies.
In banking and payments, a wrong model output isn't an inconvenience—it's a blocked account, a false fraud flag, or a regulatory finding. These agencies build fraud detection, credit scoring, and compliance automation with the audit trail supervisors expect, and they know the EU AI Act treats creditworthiness scoring as a high-risk use. Look for published work in AI Automation for KYC and reporting workflows and AI Consulting for model governance in supervised environments.
Market snapshot
Pricing for FinTech AI agencies in London
Of the 18 FinTech AI agencies on this page, 11 carry complete hourly rate ranges. Across them, rates span €20–€175, with a median around €108/hr. Across the register, rated agencies in London bill €65–120/hr (20 rated).
“Of the 18 FinTech AI agencies in London on AIAgencies.eu, 11 carry an hourly rate range, from the agency itself or a third-party directory; the median of those 11 is about €108/hr (November 2026).” https:/
/ www. aiagencies. eu/ industries/ fintech/ london# market- snapshot
European AI agency hourly rates by country and region →
| Tier | Hourly rate | Agencies |
|---|---|---|
| Budget | Under €100/hr | 5—N-iX, Marionete, Vention, Pixelette Technologies, Opinov8 |
| Mid-tier | €100–149/hr | 4—Kortical, Transparity, Found, Mercury Labs |
| Premium | €150–199/hr | 2—Brainpool, Kelriva AI |
Team capacity in London
Of the 18 agencies on this page, 17 disclose team size. The distribution breaks down as:
- Boutique (<10)2 agencies—Kortical, Kelriva AI
- Small/mid (10-49)3 agencies—Brainpool, Marionete, Mercury Labs
- Mid studio (50-99)7 agencies—Satalia, Datatonic, Datasparq, Elsewhen, Neurons Lab, Found, Ekimetrics
- Large studio (100+)5 agencies—N-iX, Transparity, Vention, Pixelette Technologies, Opinov8
Ranked agencies
Rankings updated · Newest review
Satalia
#4London, United Kingdom
Client evidence: 6 documented clients overall
Best for: Enterprises with a scheduling, routing or workforce-allocation problem big enough to justify operations-research specialists.
Datatonic
#5London, United Kingdom
Client evidence: 8 documented clients overall
Best for: Enterprises standardizing ML delivery on Google Cloud or AWS, especially where a regulator has to be satisfied.
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Faculty
#10London, United Kingdom
Client evidence: 3 documented clients overall
Best for: Enterprises and public bodies that need AI deployed under regulatory or safety scrutiny.
Kortical
#29London, United Kingdom
Client evidence: 8 documented clients overall
Best for: Enterprises with a defined prediction or document-automation problem that want a model in production in weeks.
Brainpool
#34London, United Kingdom
Client evidence: 3 documented clients overall
Best for: Operators with a measurable production bottleneck AI can remove—from timber design queues to e-commerce pipelines.
Datasparq
#37London, United Kingdom
Client evidence: 6 documented clients overall
Best for: Operational businesses with data already flowing that want a system built on it rather than a strategy deck.
Elsewhen
#43London, United Kingdom
Elsewhen is a London product consultancy working with technology and financial-services companies, pairing product design and engineering with AI and cloud delivery.
Neurons Lab
#45London, United Kingdom
Client evidence: 2 documented clients overall
Best for: Financial institutions that need agentic AI shipped inside regulatory constraints—training through production.
N-iX
#50London, United Kingdom
Client evidence: 4 documented clients overall
Best for: Enterprises with large in-house engineering teams that want AI adoption or ML work measured against an agreed baseline.
Transparity
#63London, United Kingdom
Client evidence: 8 documented clients overall
Best for: UK enterprises, charities and public bodies already on Microsoft 365 and Azure that want Copilot adopted and governed.
Found
#64London, United Kingdom
Client evidence: 8 documented clients overall
Best for: UK consumer brands in retail, insurance and hospitality that want AI applied inside paid search, SEO and campaign data.
Marionete
#65London, United Kingdom
Client evidence: 6 documented clients overall
Best for: Banks and insurers that need the data and MLOps platform under their AI built to regulated-industry standards.
Ekimetrics
#76London, United Kingdom
Client evidence: 4 documented clients overall
Best for: Consumer and industrial brands that need marketing spend measured and modeled rather than an AI system built.
Vention
#107London, United Kingdom
Client evidence: 10 documented clients overall
Best for: Venture-backed product companies adding engineers to an existing team, with AI as one feature inside the software work.
Mercury Labs
#124London, United Kingdom
Client evidence: 6 documented clients overall
Best for: UK public bodies and publicly funded research programs building AI tools that keep expert reviewers in charge.
Pixelette Technologies
#139London, United Kingdom
Client evidence: 13 documented clients overall
Best for: Founders commissioning a first blockchain or AI product build on a startup budget who will check references before signing.
Opinov8
#140London, United Kingdom
Client evidence: 6 documented clients overall
Best for: Teams adding cloud, data or modernization engineers who want AI coding tools applied to that delivery.
Kelriva AI
Verified: the agency confirmed ownership from a company email address, and the listing passed editorial review#141London, United Kingdom
Kelriva AI is a London AI consultancy that builds document processing systems and AI agents for UK businesses, with a focus on regulated sectors such as financial services. We automate the extraction, checking and routing of data from contracts, KYC files, compliance filings and invoices, and build LangGraph agents that take over multi-step approval and review workflows. Every engagement is scoped in writing and delivered at a fixed fee. We work vendor-neutral and build on the systems a business already uses.
Other industries served by London FinTech agencies
Beyond FinTech, these 18 agencies also publish experience in:
| Industry | Agencies with stated experience |
|---|---|
| E-commerce | 9 of 18 — Satalia, Datatonic, Brainpool, Datasparq, Found, Ekimetrics, Vention, Pixelette Technologies, Opinov8 |
| SaaS & B2B | 9 of 18 — Elsewhen, N-iX, Transparity, Found, Marionete, Vention, Pixelette Technologies, Opinov8, Kelriva AI |
| Manufacturing | 8 of 18 — Satalia, Kortical, Brainpool, Datasparq, N-iX, Marionete, Ekimetrics, Opinov8 |
| Healthcare | 5 of 18 — Datatonic, Faculty, Kortical, Transparity, Mercury Labs |
| Public Sector | 3 of 18 — Faculty, Transparity, Mercury Labs |
| Legal | 1 of 18 — Faculty |
Most common services offered by London FinTech agencies
These 18 FinTech agencies most commonly offer:
- AI Consulting17 of 18 — Satalia, Datatonic, Faculty, Kortical, +13 more
- AI Development16 of 18 — Satalia, Datatonic, Faculty, Kortical, +12 more
- AI Agents10 of 18 — Satalia, Faculty, Datasparq, Neurons Lab, +6 more
- Generative AI10 of 18 — Datatonic, Faculty, Kortical, Elsewhen, +6 more
- AI Automation6 of 18 — Faculty, Brainpool, Transparity, Found, +2 more
- AI Marketing2 of 18 — Found, Ekimetrics
Frequently asked questions — FinTech in London
- How much do FinTech AI agencies in London charge?
- Of the 18 FinTech AI agencies on this page, 11 publish complete hourly rate ranges. They range from €20 to €175, with a median around €108. Across the register, rated agencies in London bill €65–120/hr (20 rated). 5 agencies operate under €100/hr: N-iX, Marionete, Vention, Pixelette Technologies.
- Which are the top-rated FinTech AI agencies in London?
- Based on our editorial scoring (portfolio quality, business credibility, and case study depth), the top-ranked FinTech AI agencies in London are Satalia, Datatonic, Faculty. See the full review on each agency's profile.
- What other industries do London FinTech agencies serve?
- Beyond FinTech, the most common cross-industry experience among these agencies is E-commerce (9 of 18 agencies). Notable examples include Satalia, Datatonic, Brainpool.
- How recent are these FinTech AI agency reviews?
- 17 of the 18 agencies on this page have been editorially reviewed between Aug 4, 2026 and Sep 23, 2026 — the most recent being Opinov8. See our review methodology for how scores are calculated.
- What's the smallest team size available for fintech in London?
- Kortical, Kelriva AI are the boutique studios (under 10 people) on this page, ideal for projects needing senior-level attention without large-team overhead.
Local Insight
FinTech AI Agencies in London
London fintech AI work carries a compliance dimension most markets don't: model decisions face the FCA, and delivery evidence in regulated finance is the hardest kind to publish. The listed agencies clear that bar in public — Brainpool's case studies include market-abuse surveillance models for HSBC, Neurons Lab built an LLM content system for Visa and ran executive AI enablement for HSBC Vietnam, Faculty's published work includes generative-AI support automation for Tide, and Elsewhen has built for Mastercard and a licensed corporate neobank. The page has roughly trebled since: Datatonic built an AI banking assistant for the Swiss wealth manager Alpian and works with the insurer Hedvig, Satalia's published work includes reviewing $320 billion of investments for a hedge fund, Kortical publishes credit scoring and accounting automation, Mercury Labs builds for the capital-markets platform PrimaryBid, and Ekimetrics, Datasparq and Found bring financial-services delivery from modeling, optimization and demand sides respectively. Marionete works the layer underneath all of it—the data platform a bank's models run on, including a MiFID II compliance platform for a global broker and a self-service data science environment with AutoML for a global bank, with Saxo, HSBC and the Bank of England named on its site.
For buyers, the roster question is regulated-delivery experience: ask how a candidate handled model documentation and sign-off in a supervised environment. An agency that has shipped under compliance review will answer specifically; one that hasn't will answer generally.
Intro by Gabor Kiss, curator · How we rank
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