Assumptions, tested

Challenge

Good marketing teams want to be challenged.

The best teams don't defend their assumptions — they test them. We challenge yours and coach your team to make experimentation genuinely data-driven, finding the spots in the data where the next gain is hiding. We don't make the decisions for you — we make sure the decisions you make are sharper, faster, and backed by data.

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How we challenge

Challenge

Turn data into hard questions

We pressure-test the assumptions your spend is built on.

We sit with your team and interrogate the numbers — which channels really drive growth, which "best practices" no longer hold, where the budget is quietly wasted — and design the tests to settle it.

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How this could look like

Question the assumptions

We surface the beliefs your strategy rests on and check whether the data actually backs them.

Make testing data-driven

We design experiments that answer real questions — so you learn from every test, not just run them.

Find the next win

We hunt the spots in your data where a small change moves the number most.

Your benefits

Stop running on assumptions everyone stopped questioning.

We bring an outside, data-backed challenge to your marketing — the sparring partner that keeps your team sharp and your spend honest.

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A standing challenge

We flag where your strategy and your data disagree — before you spend against it.

Testing that teaches

Experiments designed to produce clear answers, so every test makes your team smarter.

Better decisions — yours

You make the calls; we make sure they're sharp, fast, and backed by data, not guesswork.

The mind behind i1

Your expert for trustworthy data

Dominic Thimm has spent ~30 years where engineering, analytics, and marketing meet.
Most providers set it up and disappear. We do the opposite: we make your data trustworthy, then we challenge what it’s telling you. That’s why marketing teams bring i1 in when accuracy actually matters — they get one accountable owner for the data, and a straight answer when the numbers don’t add up.
No more guessing –
get data you can rely on

Let’s make your data tell the truth.

Whether you need an audit, a full setup, or ongoing ownership, start with a non-binding look at your data. We’ll show you what you can trust today — and what’s quietly costing you decisions.
Collect
Validate
Visibility
Challenge
Support