HSE is an Athens-based engineering company. We build production systems for banks, energy operators, public-safety authorities and government agencies. The work has to clear audit, run 24/7, and be defensible under regulatory scrutiny. That constraint shapes everything we do.
We treat AI, data and operational software as a single delivery problem. The model is only as useful as the pipeline feeding it, the system around it, and the audit trail behind every decision.
LLM-powered agents, retrieval-augmented copilots, federated learning, and ML pipelines built with evaluation harnesses, guardrails and audit trails. Explainable by construction; defensible in regulated review.
Real-time and historical data backends, governance frameworks, and the integration glue between operational systems. Designed to survive audit, regulator visits, and ten years of organisational change.
Mission-critical applications for the people who actually run banks, grids and public services. Custom where it matters, integrated with what's already there.
A model that hallucinates in a chatbot is embarrassing. A model that hallucinates inside a credit decision, a grid-balancing system, or a law-enforcement workflow is a different kind of problem. Our entire engineering practice is built around the second case.
Every inference our systems produce has a traceable provenance: which version of which model, against which data, against which prompt or feature vector. Regulators, internal audit and legal teams can reconstruct any decision after the fact.
We don't ship pilots. The systems we build go into 24/7 operation, get owned by the client team, and outlive whichever leadership cycle commissioned them. The work has to survive its own success.
The applied-AI focus is recent in name; the underlying engineering discipline is not. HSE was founded in 1999 as an NTUA spin-off and has been shipping into Greek banking, government and public-sector environments ever since. The track record is what lets us take on AI work where the stakes are real.
Long-running engagements with major Greek banks: real-time market data, document management, loan and credit-card platforms, and the integration work that holds them together. The flagship SpiderStock platform has streamed Athens Stock Exchange data into a Tier-1 bank's e-banking for over a decade.
Management information systems and citizen-facing platforms for ministries and agencies, designed to strengthen the flexibility and reach of public services without compromising on governance.
HSE has been an EU framework programme delivery partner since FP7, with current Horizon Europe work on blockchain forensics, federated learning at the grid edge, and digital tools for the energy transition. Research that ships into production, not white papers.
Bespoke applications, integrations and analytics for major Greek private-sector organisations across telecoms, energy and adjacent regulated industries.
HSE is privately held and deliberately small. The people in the room with you are the same people writing the code, designing the architecture and signing the deliverables. The NTUA connection keeps the research bench strong and the hiring pipeline serious; the SME posture keeps decision-making fast.