FinTech × B2B Companies
Best FinTech AI Agencies for B2B Companies (November 2026)
FinTech AI agencies with verified B2B client evidence — ranked by depth of documented work, then editorial quality.
Each listed agency evidences at least 2 documented B2B clients. Combined, the agencies below document 282 client engagements.
Ranked agencies for B2B clients
Rankings updated · Newest review
Top 30 of 89 agencies with documented B2B work.
Dublin, Ireland
Client evidence: 20 documented clients overall
Best for: Irish organizations already running Dynamics 365 or Power Platform that want Copilot and Azure AI advice from a Microsoft partner.
Paris, France
Client evidence: 15 documented clients overall
Best for: Large French employers that want their own people building agents rather than a vendor owning them.
Lexunit
#3Budapest, Hungary
Client evidence: 13 documented clients overall
Best for: Industrial and legal-publishing operators buying a machine-vision or document-automation system to run on their own premises.
London, 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.
Modulai
#5Stockholm, Sweden
Client evidence: 12 documented clients overall
Best for: Product teams that need a model shipped into production, from clinical retrieval to real-time vision on constrained hardware.
OstraconAI
Verified: the agency confirmed ownership from a company email address, and the listing passed editorial review#6Helsinki, Finland
Client evidence: 11 documented clients overall
Best for: Nordic marketing and sales teams that want AI tools built into HubSpot, Teams or Microsoft 365 and their own staff trained to run them.
Madrid, Spain
Client evidence: 11 documented clients overall
Best for: Consumer-facing brands and large operators in Spain evolving a digital product over years, with AI added into an existing workflow.
Stepwise
#8Warsaw, Poland
Client evidence: 11 documented clients overall
Best for: Early-stage B2B software companies that need a cloud and data engineering team, with AI as one part of the product build.
Adastra
#9Frankfurt, Germany
Client evidence: 10 documented clients overall
Best for: Banks, insurers and manufacturers that need AI put under approval paths, audit trails and cost limits before it scales.
Madrid, Spain
Client evidence: 10 documented clients overall
Best for: Spanish utilities, public hospitals and large employers bringing a forecasting, clinical-data or Spanish-language modeling problem.
DareData
#11Lisbon, Portugal
Client evidence: 10 documented clients overall
Best for: Enterprises automating a high-volume back-office or support workflow, with the NOS and Heineken deployments as the reference pattern.
Vention
#12London, 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.
DATAFOREST
#13Tallinn, Estonia
Client evidence: 9 documented clients overall
Best for: Operators with data spread across many systems who want the pipeline and the model built and run by one team.
b.telligent
#14Munich, Germany
Client evidence: 9 documented clients overall
Best for: Enterprises adding an AI layer onto a data platform their own team will run afterward, in manufacturing, insurance or media.
Babel
#15Madrid, Spain
Client evidence: 9 documented clients overall
Best for: Spanish and Portuguese banks, insurers and public administrations wanting AI delivered by a large integrator with the data work around it.
TUATARA
#16Warsaw, Poland
Client evidence: 9 documented clients overall
Best for: Banks, insurers and telecoms in Poland or the Gulf that want a conversational assistant deployed inside existing customer channels.
Datatonic
#17London, 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.
Zühlke
#18Zurich, Switzerland
Client evidence: 8 documented clients overall
Best for: Regulated enterprises buying AI inside a system an engineering firm will also build, run and document.
Kortical
#19London, 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.
Hiflylabs
#20Budapest, Hungary
Client evidence: 8 documented clients overall
Best for: Banks, energy and manufacturing groups pairing an LLM or forecasting build with the data-platform work underneath it.
Transparity
#21London, 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
#22London, 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.
Shift Agency
#23Frankfurt, Germany
Client evidence: 8 documented clients overall
Best for: Enterprise brands and institutions rebuilding a website, newsroom or brand platform, with AI applied to marketing and visibility.
InData Labs
Verified: the agency confirmed ownership from a company email address, and the listing passed editorial review#24Vilnius, Lithuania
Client evidence: 7 documented clients overall
Best for: Product teams with a defined forecasting, fraud or analytics problem who want an established ML team on fixed-price or dedicated terms.
Tallinn, Estonia
Client evidence: 7 documented clients overall
Best for: Funded startups that need the interface and front end of an AI product designed and built while the model stays in-house.
Satalia
#26London, 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.
Datasparq
#27London, 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.
Version 1
#28Dublin, Ireland
Client evidence: 6 documented clients overall
Best for: Insurers, brokers and public bodies automating document-heavy back-office work with an ISO 42001-certified delivery partner.
Marionete
#29London, 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.
Algorithma
#30Stockholm, Sweden
Client evidence: 6 documented clients overall
Best for: Nordic retailers and service businesses that want customer operations run by agents and measured weekly.
About this list
Financial services is Europe's most experienced AI buyer, and the B2B-verified agencies here have documented work inside its operational core. Brainpool's case studies include market-abuse surveillance models for HSBC. Faculty's support tooling runs inside the business bank Tide with a published handle-time reduction. Neurons Lab builds specifically for regulated financial environments—Visa's LLM content system shipped with stack and timeline published—and Amsterdam Data Collective's transaction-monitoring work sits squarely in the compliance engine room. Sputnik Digital's Invntry engagement brings the insurance side: image identification that itemizes and values belongings from photos.
B2B fintech work faces two masters—the operational owner and the supervisor—and the useful screen is which of the two a candidate has satisfied before. Ask how documented models were reviewed, who held oversight, and what the audit trail looked like. The EU AI Act tightens this further for credit and risk systems. Firms on this page have shipped under that scrutiny; their premium over generalist engineering is the cost of not learning it on your budget.
Intro by Gabor Kiss, curator · How we rank
Expert Insight
Why FinTech experience matters
Regulatory literacy—Fraud detection, transaction monitoring, and credit models operate under supervisory expectations for model risk management, and creditworthiness scoring is a high-risk category under the EU AI Act. Specialists design the documentation, logging, and human-oversight layer from day one; generalists discover it exists when your compliance team blocks the release
False-positive economics—A fraud model is judged by its false-positive rate, because every false alarm is a blocked customer and a manual review costing real money. Specialists tune for the operational cost curve, not headline accuracy—a model that's 99% accurate can still bury your operations team in alerts
Legacy integration—The model is the easy part; connecting it to a core banking system, a payments switch, and a case-management tool built in 2008 is the project. Firms with financial-services experience quote the integration honestly instead of discovering it in month three
Vendor-risk survival—Banks and insurers put suppliers through outsourcing reviews, security questionnaires, and audit-rights negotiations that stall unprepared vendors for months. Specialists arrive with the documentation pack ready, which shortens procurement instead of stalling it
Frequently asked questions
89 agencies in our directory combine verified B2B client evidence with documented FinTech work. The current top-ranked are Storm Technology, AI Sisters, Lexunit — ordered by depth of documented client evidence, then our editorial scoring (portfolio quality, credibility, completeness); placement is never paid.
Published rates across this page's agencies run €20–300 per hour (median ~€65). Project totals depend on scope — the rate index at /rates breaks the computed bands down by region, country and team size.
Each listed agency has at least two documented, named B2B clients — published case studies or engagement descriptions our research actually read, with source URLs stored per client. Logo walls without published evidence carry no weight, which is what separates this list from self-declared directories.
21 of the agencies on this page document an embedded / team-extension working model. See the team-extension page for the full verified list, or check the engagement chips on individual profiles.