Tetheric Limited · Consultants in data & analytics

Data infrastructure that withstands scrutiny.

We design and deliver the platform, evidence every figure it produces, and transfer ownership to your team on a date agreed at the outset.

Book a Free ConsultationSee what we do
Board_pack_FINAL_v7 (2).xlsx4 errors
MonthRev (Sales)COGSGM %
Jun198,420118,76040.1%
Jul#N/A124,310#N/A
Aug214,050#REF!#REF!
Gross margin %Live
41.2%▲ 0.6 pts
Updated --:--:--14 of 14 tests passed

Stack we work in

  • dbt
  • Snowflake
  • Databricks
  • PostgreSQL
  • SQL Server
  • Microsoft Fabric
  • Azure
  • AWS
  • Airflow
  • Power BI
  • Python
  • Kafka
  • SSIS / SSRS / SSAS
  • BigQuery

Services

Capability across the full data lifecycle.

Four engagement models, from a two-week assessment through to full platform delivery, each led by senior practitioners and concluded with a formal handover to your team. Select any engagement for detail.

AUDIT

Audit & Assessment

Before anyone touches a pipeline we map the estate as it actually is, not as the documentation claims. You leave with a written assessment and a costed, prioritised remediation plan you can act on with or without us.

  • Warehouse and query performance profiling
  • Cloud cost and usage audit, with right-sizing targets
  • Pipeline reliability and failure-mode review
  • Indexing, partitioning and data-model diagnosis
  • Redundant tooling and licence overlap
  • Findings prioritised by payback, not by effort

Deliverable: costed findings report + prioritised remediation plan

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MODERNIZATION

Modernization

We replicate out of legacy and on-premise sources, rebuild the models in dbt, and run old and new side by side until the numbers agree. Your engineers work alongside ours throughout, so the platform is theirs before we leave.

  • Transaction-based replication as the baseline
  • Change tracking / CDC and binary log (binlog) capture
  • Custom delta replication for sources with no native CDC
  • dbt models, tests and generated documentation
  • SSIS / SSRS / SSAS maintained, modernised where it pays off
  • Parallel running until legacy and new reconcile
  • Pairing, runbooks and on-call handover
  • Ongoing support after delivery

Deliverable: a governed platform your team owns, on a handover date agreed up front

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REPORTING

Reporting & BI

Reporting fails on trust long before it fails on tooling. We build a single semantic layer, test it on every run, and put the refresh time and the source on the face of the dashboard so nobody has to ask where a figure came from.

  • Single governed semantic layer: one definition per metric
  • Power BI, Fabric and warehouse-native reporting
  • Automated data tests on every scheduled run
  • Freshness and lineage surfaced in the report itself
  • Self-serve models your analysts can extend safely
  • Migration off spreadsheet reporting, sheet by sheet

Deliverable: dashboards that refresh themselves, every figure traceable to source

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AUTOMATION

Automation

Most data teams lose their week to work no product covers: reconciliations, exports, hand-offs between systems that were never designed to talk to each other. We build the small, well-tested software that removes it.

  • Pipeline orchestration and scheduling
  • Bespoke integrations where no connector exists
  • Reconciliation and exception-reporting automation
  • Alerting that names an owner, not just a failure
  • Internal tools and data-facing APIs
  • Infrastructure as code, deployed by your own CI

Deliverable: the recurring manual work gone, with alerting that escalates to a named owner

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Our method

Four phases, each with a defined deliverable.

A structured programme with measurable outcomes at every stage, and no open-ended discovery.

  1. 01

    Discover & Assess

    We immerse in your data landscape: systems, processes, people, and pain points. Our assessment delivers a clear maturity baseline and opportunity map.

    • Stakeholder interviews
    • Technical architecture review
    • Data quality profiling
    • Cost & performance analysis
  2. 02

    Design & Plan

    Co-create a target architecture and phased roadmap. We balance quick wins with strategic foundations, ensuring every increment delivers measurable value.

    • Target state architecture
    • Technology selection
    • Phased implementation roadmap
    • Investment & ROI modelling
  3. 03

    Build & Deploy

    Engineer production-grade systems with DataOps rigour. We implement in vertical slices, automating testing, deployment, and observability from day one.

    • Infrastructure as Code
    • CI/CD for data pipelines
    • Automated testing & validation
    • Progressive rollout strategy
  4. 04

    Enable & Evolve

    Transfer knowledge and establish operating models. We upskill your teams, define SLAs, and create a continuous improvement cycle for your data platform.

    • Team training & enablement
    • Runbook & documentation
    • SLA & monitoring setup
    • Quarterly architecture reviews

Founders

Who you will actually be working with.

Tetheric is led by its two founders, and they are in the room for the engagements they sell. Select either for what they are responsible for.

Andras Csaki

COO & Co-founder

Andras is responsible for how the work actually gets done - what an engagement commits to, who is put on it, and the state the estate has to be in before it is handed back. Every engagement concludes with a formal transfer of ownership to your team on a date agreed at the outset, and operations is where that commitment is kept rather than asserted.

  • Engagement scoping and delivery
  • Staffing and practitioner standards
  • Handover and knowledge transfer
  • Client operations and reporting
Book a Free Consultation Session

Alex Gowers

Co-founder & CEO

Alex leads the business and the technical standard behind it. Tetheric's position is that reporting should be evidenced rather than asserted, and that a platform a client cannot operate without us is not finished - setting that standard, and declining work that cannot meet it, is the job.

  • Company direction and growth
  • Technical standards and architecture
  • Client relationships
  • Evidence and assurance practice
Book a Free Consultation Session

Contact

Every engagement begins with a Free Consultation Session.

A thirty-minute session with a senior practitioner to review your requirements and assess where we can add value. It is completely free, carries no obligation, and involves no sales process. We respond to all enquiries within four working hours.

Free Consultation Session

30 min · Video or phone · Free, no obligation · Europe/London

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Prefer to write instead? enquiries@tetheric.com reaches the same team.

+44 20 3922 2896 · enquiries@tetheric.com · London, UK