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#  ***Agency profile* ROI Story** 

  Accepting new clients 

[**ROI Story**](https://roistory.cz/) is a digital agency with over 10 years of experience in **online marketing** and **advanced data analytics**. We help e‑shops of all sizes grow — from billion-dollar players like [**Datart.cz**](https://www.datart.cz/) or [**DEK Stavebniny**](https://www.dek.cz/), to specialized and smaller e‑commerce projects across Europe.

 

 

 

 

  ![roistory](https://www.mergado.com/sites/default/files/perm/svg/navrh_bez_nazvu.svg)   ![](https://www.mergado.com/themes/custom/mergado/static/images/partners/agency-partner-silver-en.svg)  The agency was certified on 18. 2. 2025 

 

 

 

 

 

 

 

 CEO 

###  Lukáš Krejza 

- [  +420 604 120 977 ](tel:+420604120977)
- [  info@roistory.cz ](mailto:info@roistory.cz)
 
 

 

 

 

### Certified experts

Expert

E-mail

 

 David Sagula <david.sagula@roistory.cz> 

 

 <david.sagula@roistory.cz> 

 

 

 

 

Our domain is **data** — quality, properly collected, linked and used in practice. In an era of ad blockers, limited tracking and complicated consent management, we help clients overcome obstacles and build tailored **BI ecosystems**. We aggregate data from marketing and analytics platforms, connect it to corporate systems, and help make the right **marketing and business decisions**.

We get clear answers to questions about **what really works** from good data. We measure the contribution of each channel, segment customers by behaviour and needs, and allocate budgets effectively where they deliver the most value. We plan and optimise campaigns across platforms such as **Google Ads, DV360, Sklik, Meta, LinkedIn, TikTok, Microsoft Ads, RTB and emailing tools**.



 

 

 

### Services

- Pricing strategy
- Copywriting and email marketing
- Graphic design
- Connecting data from suppliers
- PPC
- SEO
- Social media
- Comparison shopping sites
 
 

 

###  Contact 

- [  +420 604 120 977 ](tel:+420604120977)
- [  info@roistory.cz ](mailto:info@roistory.cz)
 
 

 

- [  ](https://www.facebook.com/roistory.cz "Facebook")
- [  ](https://cz.linkedin.com/company/roi-story "LinkedIn")
- [  ](https://www.youtube.com/@roistorycz7076 "YouTube")
 
 [ roistory.cz ](https://roistory.cz/)