services / a/b testing & experimentation
Experimentation, from first test to advanced programs.
We audit existing setups, build new ones from scratch and run advanced experiments, with feature flagging and your warehouse in the loop. Specialists in GrowthBook, and fluent in nearly every other tool.
✦ Ready for the AI era. Test your AI features like any other product change. We set up experimentation for models, prompts and AI-powered experiences.
trusted by data teams at
✓ Enterprise-ready. Already trusted by multiple Fortune 100 companies.
capabilities
Everything experimentation, in one place
Audit existing programs
Deep reviews of advanced A/B testing setups: tooling, statistics, instrumentation and process.
Setup from scratch
Tool selection, instrumentation and your first trustworthy experiments, done properly.
Advanced experiments
Server-side and client-side tests, complex designs and hard engineering problems.
Feature flagging
Roll features out safely, gradually and measurably, with flags tied to experiments.
Choosing the right tool
Honest, vendor-neutral advice on tools and architecture for your team and scale.
Data infrastructure integration
Connect GrowthBook, Statsig, Eppo and others to your warehouse and analytics stack.
warehouse-native
Experiments that live in your data stack
We wire your experimentation tool into your warehouse and analytics, so assignments, metrics and results are consistent and reusable everywhere.
- Warehouse-native setups for GrowthBook, Statsig, Eppo and more
- Metrics defined once and shared across analytics and experiments
- Reliable exposure and assignment logging
- Results your data team can audit and extend
★ Specialists in GrowthBook, with deep experience across nearly every A/B testing tool.
exp_checkout_redesign · day 14 variant users conv chance to win control 48,210 3.1% · new_flow 48,094 3.6% 96% ✔ sample ratio: ok ✔ guardrail metrics: ok
// illustrative
tools
Tools we know inside out
specialisations
Go deeper by tool
GrowthBook
Our specialty: warehouse-native experiments and flags.
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Statsig
Feature gates, experiments and metrics, end to end.
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Eppo
Rigorous, warehouse-native experimentation.
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Optimizely
Web, feature and full-stack experimentation programs.
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VWO
Fast, statistically sound VWO testing.
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Convert
Privacy-minded testing with clean integrations.
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AB Tasty
Client-side tests, feature flags and rollouts.
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Kameleoon
Hybrid web and feature experimentation.
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Amplitude Experiment
Tests and product analytics telling one story.
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how we work
From first call to running system
01 /
Discover
We learn your goals, stack and constraints.
02 /
Plan
Audit findings and a clear, prioritised plan.
03 /
Build
Implementation by engineers, reviewed with your team.
04 /
Run
Hand over, or keep us on to support it.
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Other ways we can help
Analytics & tracking
Implementations and event libraries that make your tracking consistent and trustworthy.
GA4AdobeMixpanelEvent libraries
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Data infrastructure
Data pipelines, warehouses and the cloud computing underneath them.
PipelinesWarehouseGCPAWSAzure
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Data build & semantic layers
Trusted models and one definition of every metric, in dbt and MetricFlow, LookML, SQLMesh or Omni.
dbtMetricFlowLookMLSQLMeshOmni
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Audits
Independent audits of your analytics setup, data infrastructure and experimentation.
AnalyticsInfrastructureExperimentation
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AI
Company brains, custom agent harnesses, team training and AI bots for your website.
AgentsTrainingWeb bots
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BI & reporting
Any BI platform, including Looker. Dashboards people actually open.
LookerPower BITableau
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Data consulting
Tool selection, stack design and straight answers on what to build or buy.
StrategyTool selection
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Managed platform
We run the Reflective Data platform for you, end to end.
PipelinesBuildExplore
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"I've worked with hundreds of vendors, and Reflective Data stands apart. Their dedication to customer success is unmatched. They stayed with our team through every legacy-platform surprise until we could fully trust the data landing in our warehouses. Hands down one of the best teams I've worked with in 15 years."
— Marc, Senior Marketing Manager, Invesco
Tell us what you need. We'll scope it.
Pricing is tailored to your sources, volume and the parts of the platform you use. Get a quote or book a call with the team.