Tetheric Limited · Data engineering consultancy

Data infrastructure that stands up to scrutiny.

Our seasoned practitioners deliver expert consulting, state-of-the-art data engineering to lower costs, headaches and make your data work for you. You get measurable outcomes and a handover date agreed up front.

Registered
England & Wales, No. 16626379
Engagements
Currently accepting
Query performance gain
10×

Query performance gain

Typical optimisation outcome

Monitoring & support
24/7

Monitoring & support

Continuous data operations

Before / after

Modern data systems beat spreadsheet chaos.

Most reporting we inherit lives in versioned spreadsheets: three revenue columns, broken lookups, and a figure that changes depending on who exported it. We replace that with one governed model and dashboards that refresh themselves.

Today — the spreadsheet

A typical spreadsheet-based reporting workflow: conflicting revenue columns, broken references, and manual notes.
sales_Q2_FINAL_v27 (3).xlsx — Read-Only — last saved 41 days ago
fx=VLOOKUP(A5,'Jan (2)'!$B$2:$Z$999,17,FALSE)
ABCDEF
1MonthRev (GBP)rev_finalREV USE THISchecked?notes
2Jan812,440812,440798,102ysee email
3Feb941,270#REF!941,270y
4Mar907,315907,315912,000ask Dave
5Apr1,082,6601,082,660#N/Ayvlookup broke
6May1,214,8901,209,5511,214,890??which one
7Jun1,281,0041,281,0041,281,004yFINAL v27
8=SUM(B2:B7)#REF!=B8*1.1??
9      
10      
11      
12      
13      
Sheet1Jan (2)FINALFINAL_oldDO NOT DELETE
  • Three candidate figures for the same month
  • Manual exports, versioned by filename
  • Breaks silently when a column moves

After — the platform

The same data as a governed dashboard: one revenue figure, refreshed automatically, with a monthly revenue chart.
Revenue operationsrefreshed 3 min ago · source: warehouse

Revenue, Jun

£1.28M

▲ +5.5% vs May

YTD revenue

£6.23M

vs £6.0M target

Data tests passing

412/412

dbt, hourly run

Monthly revenue, £M — Jan–Jun 2026

0.00.51.01.5JanFebMarAprMayJun1.28
  • One governed figure, same for everyone
  • Refreshed automatically from the warehouse
  • Tested on every run — failures alert, not mislead

Services

Expertise across the data lifecycle.

From legacy data replication to dbt transformation, reporting and bespoke software—delivered by senior practitioners who hand the platform back to your team.

REPLICATION

Data Replication

Move data reliably from anywhere—including legacy and on-premise systems—into your modern platform, with minimal downtime.

  • Transaction-based replication as the baseline
  • Change tracking / CDC (CT) & binary log (binlog)
  • Custom delta replication for sources without native CDC
  • Legacy & modern source connectors

TRANSFORMATION

Processing & dbt

Model and transform your data with dbt, the modern standard for analytics engineering. We maintain existing SSIS/SSRS/SSAS estates and modernise where it pays off.

  • dbt models, tests & documentation
  • SSIS / SSRS / SSAS support for existing implementations
  • Modern ELT patterns where they add value
  • Pipeline orchestration & scheduling

ENABLEMENT

Team Integration & Enablement

We embed with your in-house software team so they own and support the platform long after our engagement ends.

  • Embedded collaboration with your engineers
  • Pairing & knowledge transfer
  • Runbooks, docs & on-call handover
  • Ongoing support after delivery

PERFORMANCE

Optimisation of Existing Systems

Squeeze more out of what you already run—faster queries, lower latency, and healthier, more reliable pipelines.

  • Query & warehouse performance tuning
  • Pipeline reliability & cost review
  • Indexing, partitioning & modelling fixes
  • Bottleneck diagnosis

COST

Cost Minimisation

Reduce spend without reducing capability—right-sized infrastructure and smarter usage of what you already pay for.

  • Cloud cost & usage audits
  • Right-sizing compute & storage
  • Eliminating redundant tooling
  • Usage-based optimisation

TRAINING

Native Tooling & Training

Often you don't need new tools or infrastructure—you need to use what you have to its full advantage. We train your team and optimise current systems.

  • Get the most from existing tooling
  • Targeted team training
  • Optimisation over replatforming
  • Pragmatic, no-big-bang advice

REPORTING

Reporting & Business Intelligence

Turn modelled data into dashboards and reports people actually use to make decisions.

  • Self-service & executive dashboards
  • Semantic layers & metrics
  • Embedded analytics
  • Visualisation & storytelling

SOFTWARE

Bespoke Software Implementation

When off-the-shelf doesn't fit, we build tailored software that slots cleanly into your data estate.

  • Custom internal tooling
  • Data apps & services
  • APIs & integrations
  • Production-grade delivery

Method

Four phases. Measurable outcomes at every step.

No endless discovery—just pragmatic progress, with a deliverable at the end of each phase.

  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

Contact

Every engagement starts with a conversation.

No sales pressure—just a frank discussion about your challenges and how we might help. We typically respond within four hours.

· enquiries@tetheric.com · London, UK