Safety · MBSE · Measurement · AI in the loop

Critical Engineering,
Delivered with Rigour

T4Test is an independent engineering consultancy helping OEMs and Tier-1 suppliers build compliant, safe and high-quality systems across automotive, aerospace, medical and industrial automation.

Trusted by Tier-1 suppliers and engineering partners

Services + tools

Our services, accompanied by our own tools

We don’t just advise — we build the tools that make the advice stick. Every engagement can be paired with the PROmeter product family so the work survives after we leave.

Metrix — in Measurement & governance

KPI programmes land on a real board you can open on Monday — not a slide deck of what you’ll measure one day.

See Metrix →

Calix & Semantix — in AI workflow

Review automation and change-impact intelligence integrated into your tools, backed by our Anthropic Claude partnership.

See the PROmeter family →

Helix — in MBSE & Process

BPMN process definitions with formal, metric-driven gates — the processes you architect become processes the tool enforces.

See Helix →
Industries

Regulated and critical, cross-industry

Experience spanning the most demanding engineering environments.

Automotive Aerospace Medical Technology Industrial Automation Rail & Machinery Lab Automation
Releasing 16 November 2026

Our product family: PROmeter

PROmeter Metrix turns the KPI story above into a tool: author KPIs in a readable DSL, run them against your engineering data, and show results on boards reviewers actually read. Calix, Semantix and Helix extend the platform into AI-assisted review, change-impact analysis and governance.

Explore PROmeter → Start with Metrix

Safety, process, measurement — or bringing AI into the loop?

From ISO 26262 item definitions and ASPICE assessments to KPI programmes and on-prem vs cloud LLM decisions — let's talk about your project.

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