About StatSchecker
Top-notch compliance training for media buyers, from the heart of Leicestershire
Turning Regulatory Know-How into Smart Training
MATEUSZ TOMASZEWSKI LTD started in 2025 with a simple goal: to help media buyers navigate UK advertising rules without the headache.
Founded by Mateusz Tomaszewski, who spent 12 years at the ASA as a caseworker, the company came from a real need. Plenty of talented media buyers were great at strategy and creativity but got tangled up in the compliance web.
Based in Coalville, Leicestershire, we work with media buyers across England, Scotland, Wales, and Northern Ireland, offering resources that turn complex rules into practical advice.
What We Stand For
We think good compliance should free up creativity, not box it in.
Practical Education
We keep things practical, not theoretical. Every resource is built to help media buyers make confident choices in their day-to-day work.
Neutral Guidance
We're independent from regulators, agencies, and platforms. Our advice is straightforward and focused on helping you understand the rules.
Always Improving
The rules change all the time. We stay on top of them, updating our materials monthly and flagging new requirements as they come up.
Our Expert Team
Mixing regulatory know-how with real-world media buying experience
Mateusz Tomaszewski
Twelve years at the ASA, focusing on digital ad complaints and CAP Code rules. Mateusz built the compliance frameworks used by hundreds of UK agencies. He lives in Coalville and cycles to work past the old colliery – a reminder of the area's industrial past.
Emily Cotterill
Former senior media buyer at Publicis Media London, with solid experience in programmatic ads and GDPR. Emily turns complex rules into clear, practical advice. She brings an agency perspective to everything we create.
Rajinder Singh
Specialist in digital ad verification and data protection compliance. Rajinder cycles to work from his home in Snibston, past the old colliery site. He focuses on the technical aspects of compliance, including cookie consent, tracking pixels, and cross-border data transfers.
Our Coalville Headquarters
Our office overlooks the Grace Dieu Manor gardens, providing a peaceful environment for developing educational content. Visitors from London typically arrive via East Midlands Parkway station — we're 20 minutes by taxi.
We close early on Fridays because the Coalville Farmers' Market sets up on Market Street from 15:00, and several team members enjoy supporting local vendors. This connection to our community reflects our approach to business: practical, grounded, and focused on real relationships.
The choice of Coalville as our base is deliberate. Away from the pressure and noise of London, we can focus on what matters: creating educational resources that genuinely help media buying professionals navigate compliance with confidence.
94 Bradgate Drive, Coalville, England, LE67 4HG
5-minute walk from Coalville Railway Station
Recognition and Community
Proud supporters of ethical advertising practices across the UK
Professional Recognition
Supported by Leicestershire Chamber of Commerce and recognized as a member of Coalville Business Improvement District. Our educational approach has been featured in Marketing Week and Campaign magazine.
We regularly contribute to ASA consultation processes, ensuring practitioner perspectives inform regulatory development.
Client Feedback
"I call their Coalville office every quarter. Never had a regulator question my campaigns since partnering with StatSchecker for compliance guidance."