Marionete
London, United Kingdom
About
Marionete is a London data and AI engineering consultancy building enterprise data platforms, self-service data science environments and machine-learning systems for banks, brokers and industrial groups, with a nearshore delivery office in Lisbon.
Who They Work With
Banks and insurers that need the data and MLOps platform under their AI built to regulated-industry standards.
Based on 6 client engagements with a source URL · researched 23 Sept 2026
Our Take
The clearest AI delivery on the site is infrastructure, not models: for AXA, Marionete built an MLOps factory on Databricks and Azure DevOps with a model registry, champion-challenger releases, human approval gates and drift monitoring, adopted by 4 teams across 2 business units and credited with 6x faster time to value.
The rest of the published work is data and integration engineering at bank scale—a payments orchestration platform tagged to HSBC, reported live in 54 countries and processing over $101.5bn a month, and a streaming DataHub built over 3 years for Saxo Bank.
The GenAI and agentic practice on the capabilities page has no case study behind it, and at Beazley the AI element is one bullet on extracting broker-submission data, with no model, accuracy or volume published.
The weaker fit is buyers who want an LLM or agent product built end to end and need a published production result for that kind of work before signing.
Key strengths
- The AXA MLOps study names its operational controls—model registry, champion and challenger aliases, human approval gates, drift and cost monitoring—instead of stopping at a deployed model
- Payments platform numbers are specific enough to test in a reference call: 54 countries in production, $101.5bn+ processed a month, a 99.998% payment message success rate
- A named leadership team including a CTO and a Head of Data & Intelligence, street addresses in London and Lisbon, and an in-house Academy whose syllabus covers MLOps and GenAI
Good to know
- No published case study shows a GenAI or agentic system in production—ask for a live reference before buying the AI & Agentic Solutions line
- Case-study bodies name no client; identity rests on page tags and URLs—ask to speak to the platform owner at AXA or Beazley directly
- Marionete publishes no rate itself; the rate shown here comes from a third-party directory listing—ask how London and Lisbon staffing shapes the day rate
Reviewed by Gabor Kiss
Founder & Curator, AIAgencies.eu · 23 Sept 2026
Based on the agency's publicly available portfolio. Own this agency? Claim your profile to provide additional context or request a review update.
Notable Clients
Every engagement documented in a published case study
Documented engagements: AXA (UK and Ireland), Beazley, HSBC, Saxo Bank, Siemens, and Bank of England. All 6 carry a source URL on file.
Services
Industries
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