Sentryworks

Coming soon

Data products and analytics consulting. Our new site is almost ready.

hello@sentryworks.nl

Data products & analytics engineering

Data you can
stand behind.

Sentryworks builds focused software and delivers hands-on consulting for teams whose decisions depend on measurement that holds up: quietly, correctly and without collecting more than it needs.

See our productsConsulting services

Products

Small tools for one hard problem each.

Early access

Tracking Sentinel

Continuous validation of website tracking against explicit contracts. Tracking Sentinel notices when an event disappears, a parameter drifts or consent handling changes. It does so from privacy-safe metadata, never customer data.

  • Event contracts for GA4 default and custom events
  • Consent-gated monitoring of real page loads
  • Stores field names and types, not values
Visit trackingsentinel.com →

Consulting

Senior analytics work, without the agency overhead.

01

Web, app & server-side tracking

Tracking plans, event contracts and consent-aware tagging for GA4, GTM and server-side setups, across websites and apps, versioned and testable.

02

Data strategy

Deciding what to measure and why: KPI frameworks, data governance and a roadmap that connects business questions to the data you collect.

03

Data engineering

Reliable pipelines from source to warehouse to dashboard, with the checks that tell you when something breaks.

04

Advanced analytics

Experimentation, attribution and statistical modelling with honest readouts, so decisions rest on effects you can defend.

Need consulting on tracking, data strategy, engineering or advanced analytics? Visit goudriaan.online →

Approach

Contracts before dashboards.

Define what correct means. Every metric starts as an agreed contract: which events, which fields, which consent state.

Verify continuously. Measurement breaks silently. We build checks that fail loudly instead.

Collect less. Privacy by design is not a feature; it is the default. If a value is not needed, it is not stored.

Leave it maintainable. Versioned configuration, documentation and handover. No black boxes.

Have a measurement problem worth solving?

Tell us briefly what you are working on. We usually reply within one business day.

hello@sentryworks.nl