Most eCommerce companies run on hope. A new homepage here, a different checkout there. “We think this will convert better.” Hope is not a strategy. And it definitely is not a business model.
JDKRUEGER&CO exists because the market is broken. Tool vendors sell infrastructure and leave you to figure out the rest. Agencies charge retainers and hourly rates — whether their tests win or lose. You carry all the risk. We built the third model.
What we do
We operate a Conversion Operating System for eCommerce. Not a tool you buy and figure out. Not an agency that sends invoices and monthly reports. A fully orchestrated system that generates revenue — from first analysis to rolled-out winner.
The system has nine Engines: Analysis, Hypotheses, Development, QA, Monitoring, Experimentation, Reporting, Project Management and Success Accounting. Every Engine is operationalised, checklisted and measurable. The knowledge from 1,200+ experiments, proprietary research databases and psychological frameworks is built into the system. Not into one person.
How we are different
We do not sell hours. We do not sell licences. We do not sell consulting. We sell provable revenue uplift. And we only get paid when we deliver it.
Here is what that means in practice:
- Zero setup cost. We invest the analysis, development and QA upfront. If we do not generate uplift, you owe nothing.
- Zero retainer. No monthly fee that runs regardless of results. No minimum term. No lock-in.
- 10% of provable uplift, capped. The billing basis is always the direct A/B-test comparison: Control vs. Variant. No historical baseline, no estimation, no fluff.
- 3–5 days to first live test. Not months of onboarding. Not weeks of workshops. We start fast because the system is already built.
What we have built
| 210 Mio. EUR+ | Generated additional revenue for clients via direct A/B-test comparison |
| 1,200+ | Conducted experiments across Shopify, WooCommerce, Magento, Shopware and custom systems |
| 9 Engines | Fully orchestrated Conversion Operating System covering the entire CRO lifecycle |
| 3–5 days | From onboarding to first live test |
| 0 EUR | Setup cost. Zero. |
| Gold Stevie Award | International Business Awards — for systematic innovation in eCommerce |
| Top Expert 2026 | Erfolg Magazin — Onlineshop Optimisation category |
Who we work with
We specialise in eCommerce companies doing 100,000+ EUR monthly revenue across DACH (Germany, Austria, Switzerland). Our clients run on Shopify, WooCommerce, Magento, Shopware and custom-built systems.
Typical results: A fashion shop increased conversion rate by 18% with a single CTA change. An electronics retailer boosted add-to-cart rate by 23% by reducing choice paralysis. A food shop reduced checkout abandonment by 12% with a progress bar. These are not outliers. This is what happens when you replace guessing with systematics.
What we believe
Data before opinion. Every decision is based on measurable data, not gut feeling or hierarchy.
System before hero. The knowledge is in the system, not in a single person. That is why it scales.
Revenue before vanity. Revenue Per User is the only metric that counts. Not clicks, not time-on-site, not bounce rate.
Speed before perfection. A good test live today beats a perfect test in two weeks.
Who is behind this
JDKRUEGER&CO was founded by Joerg Dennis Krueger in 2019, after 13 years of systematically testing what works in online shops. He wrote the first German-language book on A/B-testing (2011), developed the thinkCONVERSION® framework and has spoken at OMR, OMKB, Internet World and K5.
But the company is not about one person. The Conversion Operating System was built so that the expertise lives in the infrastructure — not in a single head. That is why we can scale, why we can bear the risk, and why our results are reproducible.
Ready to stop guessing?
No pitch. No obligation. We tell you honestly whether your shop fits our model.
Last updated: Mai 2026