Companies whose analytics I have set up
Before going freelance I worked through a student organisation, startups, boutique agencies, software houses and corporations. Since 2021 I have worked with one-person businesses as well as brands whose services you probably use every day. The list below is grouped by industry, so you can quickly find a project close to yours. I have worked on Magento, WooCommerce, PrestaShop, Shoper, IdoSell, WordPress, Framer and on custom-built startup platforms.
Detailed write-ups of selected projects, with the problem, the solution and the result, are on a separate page: Case studies: 17 examples from e-commerce, apps, FinTech and B2B.
Clients by industry
Expand the industry you are interested in. For each brand I describe what the work actually involved.
E-commerce 9 brands
| Client / brand | Niche | Scope of work |
|---|---|---|
| Elementy Wear | Fashion | E-commerce analytics, audit of measurement tools and improved revenue tracking. |
| Naree | Fashion | Audit and repair of analytics problems, closing the gaps in purchase event tracking. |
| Femimoda | Fashion | Fixed duplicated Meta Pixel and Conversions API events, implemented a GTM environment and configured Consent Mode. |
| Habarri | Toys | Analytics implementations, business goal configuration and optimised purchase conversion tracking. |
| 7niebo.pl | Toys | Implementation, testing and configuration of e-commerce analytics with precise tracking along the purchase path. |
| Milke | Architecture | End-to-end analytics implementation with advanced event tracking in GTM and GA4. |
| Butshop | Footwear | E-commerce analytics optimisation, improved GTM configuration and more accurate sales reporting. |
| Battery Point | Automotive | Web analytics support and technical verification of transaction data collection. |
| Wingstore | Sports | Web analytics implementation and configuration, tracking key events along the purchase path. |
Large brands and corporations 3 companies
| Client / brand | Industry | Scope of work |
|---|---|---|
| Inter Cars Marketing Services | B2B / distribution | Advanced analytics tasks, implementation audits and technology integrations for the marketing team. |
| Orange Polska | Telecoms | Dedicated team training in mobile app analytics with Firebase. |
| OTCF S.A. (4F brand) | Sportswear / retail | Dedicated team training in mobile app analytics with Firebase. |
B2B 4 companies
| Client / brand | Model | Scope of work |
|---|---|---|
| HT Truck Parts | B2B logistics | Audit of the analytics environment and improved user tracking across the B2B site and the online store. |
| Procan | B2B e-commerce logistics | Audit of the analytics environment, improved user tracking and Google Ads campaign management. |
| Chroma | Manufacturing / B2B | GA4 and GTM analytics audits with Consent Mode verification. |
| Sternet | B2B, industrial | A company servicing drives we rely on every day without knowing they exist. Google Ads, LinkedIn Ads and Meta Ads consulting with campaign fixes and optimisation, plus a correct GA4 implementation with a CMP (consent management platform). |
IT, SaaS and MarTech 3 companies
| Client / brand | Profile | Scope of work |
|---|---|---|
| PushPushGo | MarTech SaaS | Web analytics audits and implementations, support with tracking setup in Google Tag Manager. |
| Appchance | Software house | Analytics support and optimised user behaviour tracking for web and mobile products. |
| Vercom S.A. (Redlink, EmailLabs) | IT services / communications | Budget management and optimisation of Google Ads, Facebook Ads and LinkedIn Ads campaigns, plus analytics oversight. |
Finance and insurance 2 companies
| Client / brand | Profile | Scope of work |
|---|---|---|
| Walutomat | Online currency exchange | Mobile app analytics training with Firebase and Google Analytics 4 consulting. |
| Insurance company | Insurance | Analytics consulting, conversion path design, GA4 explorations, GTM and GA4 documentation, Consent Mode audits and BigQuery integration. |
E-mobility 2 companies
| Client / brand | Profile | Scope of work |
|---|---|---|
| Green Electricity Sp. z o.o. (Blinkee.city) | Sharing: scooters by the minute | Mobile app analytics in Firebase and GA4, event mapping, audiences and push messaging setup. |
| MiiMove | Car sharing by the minute in the Tricity area | Mobile app analytics in Firebase and GA4, event mapping, audiences and push messaging setup. |
Startups across industries 6 companies
| Client / brand | Profile | Scope of work |
|---|---|---|
| StethoMe | MedTech / IoT | An electronic stethoscope with a mobile app. App analytics in Firebase and GA4 and online store analytics with documentation, plus Google Ads and Meta Ads campaigns. |
| Activy | B2B, sport, ESG | A platform that motivates employees and residents through sports challenges. Analytics consulting for the mobile app. |
| GruntGuru | Real estate | Analytics for a land listings marketplace. Google Ads and Meta Ads campaign audit with fixes. |
| Center.ai (now LocalZen) | B2B SaaS | A tool that boosts business visibility in Google Maps. GA4 implementation for marketing. |
| Diet & Training by Ann | Sport and fitness | GA4 and Firebase analytics audit of the mobile app, tracking documentation and work with developers on implementation and testing. |
| Dotlenieni | B2B, ESG | Eco events for companies. UX audit, Consent Mode and GA4 implementation. |
Agencies (white-label work) 6 companies
| Client / brand | Profile | Scope of work |
|---|---|---|
| mta.digital | Marketing agency | Mobile app analytics consulting for one of the agency’s clients. |
| Tigers | Marketing agency | E-commerce analytics consulting for one of the agency’s clients. |
| WebVip | Marketing agency | App and website analytics consulting for one of the agency’s clients. |
| Visux | UX agency | GA4 and GTM implementations and audits, CMP and enhanced conversions setup for Polish and international clients. |
| Clipatize | B2B marketing agency | Marketing reporting for Polish and international clients. |
| Tribe47 | Marketing agency | Analytics consulting for one of their international clients. |
This is only a selection. Much of my work is covered by NDAs or delivered white-label for agencies, so I cannot name those clients. Besides the large brands on the list, I am just as happy to work with smaller companies and startups. You can see what these projects look like from the inside in the anonymised case studies.
Read client recommendations on LinkedIn →
3 example projects in detail
The projects I am proudest of are the ones I cannot talk about by name, so here is what the problems and solutions looked like. These examples are not companies from the list above. More step-by-step write-ups are on the case studies page.
Diet catering (NDA)
Problem: A large ad budget without professional in-house management, and no correct analytics on the website or the mobile app.
What I did: I rebuilt the Google Ads and Facebook Ads campaigns, which paid back the full cost of the audits, fixes and mobile app analytics implementation within a few days. I also implemented a correct, dedicated dataLayer together with the developers. It was a small contribution to the fast growth of a company you have most likely heard of.
Advertising app (NDA)
Problem: The board required data continuity from Universal Analytics in GA4.
What I did: I planned the Universal Analytics shutdown and translated every existing Universal Analytics metric in the company’s reports into the new user-based (not session-based) reporting model in Google Analytics 4.
B2B/B2C e-commerce
Problem: A B2B website on Drupal and a B2C online store on IdoSell on a subdomain. No correct cross-subdomain tracking, no single shared CMP for both sites and no B2B/B2C customer segmentation.
What I did: I chose the most cost-effective CMP covering both the domain and the subdomain, implemented correct subdomain tracking in GA4 and sent IdoSell instructions to fix incorrect user_id generation and the add_to_cart event. I configured user properties to tell B2B and B2C users apart.
Platforms I have worked on
If your store, website or app runs on one of these platforms, I probably already know its typical tracking pitfalls and will not discover them at your expense. I work on off-the-shelf store engines as well as systems built from scratch.
PrestaShop
Naree, Femimoda. Most common problems: duplicated purchase events and Consent Mode configuration.
WooCommerce
Butshop, Wingstore, Milke. Most common problems: purchase path tracking and sales reporting accuracy, usually fixed in the GTM4WP plugin.
Shoper and IdoSell
Habarri, 7niebo.pl. Improved e-commerce analytics configuration and guidelines for the platform’s developers.
Magento (Adobe Commerce)
Stores with large catalogues and custom modules. Most common problems: an incomplete dataLayer after template changes and revenue gaps between GA4 and the store panel. I prepare the developer spec and test the implementation.
WordPress
Company, B2B and lead generation websites. Form tracking (Contact Form 7, Elementor), GTM4WP configuration, CMP and Consent Mode without slowing the site down.
Framer
Startup websites and landing pages. Framer has no analytics plugins, so I set up GTM, Consent Mode and form and click tracking with custom code.
Custom platforms
Startups and companies with their own store, marketplace or web app. I design the dataLayer from scratch, write event documentation for developers and verify the data after release.
Mobile apps (Firebase)
Orange, 4F, Walutomat, Blinkee.city, MiiMove. Mobile app analytics training and implementations.
Where we usually start
Your project could be next on this list
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