Shared base for every team
Marketing, sales and finance stand on the same organised data.
Data Warehousing · ClickHouse · Hellenic Technologies
One stable data foundation for all of leadership
We build a ClickHouse warehouse so marketing, sales and finance read the same organised base. Cloud or self-host. Your data stays yours.
Open source stack with no licence fees and no per-seat costs. No vendor lock-in, GDPR-compliant by design. MetisAI reads directly from the warehouse for real-time intelligence.
Scattered sources mean unstable reports and contested conclusions
Without an organised warehouse, every report leans on temporary joins and different timings. Leadership compares numbers that were not born from the same logic.
A warehouse is not just storage. It is where definitions become models and flows become the base for dashboards and attribution.
Freedom in your stack
No vendor lock-in. No licence fees. No per-seat costs.
We set up ClickHouse so your data stays yours, with GDPR compliance built in. The open source stack keeps you free from vendor dependency and licensing charges. You retain ownership. We handle the setup and ongoing operations.
What we build in Data Warehousing
We are ClickHouse experts. The warehouse is designed for decisions, ownership, and freedom from licensing — not abstract infrastructure.
- 01
ClickHouse architecture
We design the base around the questions leadership must answer quickly.
- 02
Cloud or self-host
It runs in the cloud or on your infrastructure, with clear access and maintenance logic.
- 03
Your data stays yours
Ownership and control stay with the client, GDPR-compliant and free from vendor lock-in.
- 04
Open source with no seat fees
No licence fees and no per-user charges in the stack. Unlimited seats with no licensing costs.
- 05
Models and access
We organise tables, roles, and permissions so teams can query without confusion.
- 06
Connected to pipelines and dashboards
Accepts Airbyte streams and feeds Metabase dashboards and MetisAI.
Business outcomes
Ownership control
You know where your data lives, who has access, and that no vendor lock-in is holding you back.
No licence or seat fees
Open source stack: no licensing costs and no per-seat charges as your team grows.
A more reliable foundation for dashboards
Your dashboards are not built on temporary file joins.
A clearer picture for your business
A cleaner internal view leads to better product and service prioritisation.
Process
The warehouse sits in the middle of BI
It receives pipelines and feeds dashboards, attribution and managed operations.
Data Pipelines
Airbyte flows into the warehouse.
See PipelinesBI Dashboards
Metabase on the shared base.
See DashboardsMarketing Attribution
Channel performance on the same models.
See AttributionManaged BI
Ongoing care for models and quality.
See Managed BIHow you see the warehouse works
Success is trust in the base and use of it in decisions.
Shared reading
Teams stop carrying their own copies of the same data.
Stable feeding
Flows land cleanly and on the agreed rhythm.
Useful models
Dashboards rely on tables the team understands.
Preserved ownership
You know where data lives and how access is controlled.
Data Warehousing delivers real value when it becomes a shared source of truth that you own — not when it ties you to licences and vendors.
Proof
20 years of digital delivery, 100+ specialists, enterprise clients — quiet proof, not boastful claims.
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Let’s see if Data Warehousing fits your case
Share where your data lives today and who needs to read it. We return with a clear next step.