About Matt Timmermans

Matt Timmermans is a Dutch SEO and GEO expert and the founder of Timmermans Media, an agency that helps businesses get found in Google and in AI answers from ChatGPT, Gemini and Perplexity. He is also the founder of GiveRadar, a global charity database and nonprofit search and verification platform built on official government registries and tax authorities.

Matt has worked in SEO since 2018 and specialized in GEO in 2024. Clients of Timmermans Media include Business Insider, Bitvavo, HEMA and Coinmerce. His studies of how AI chatbots choose their sources have been covered by Adformatie, Emerce, ICT Magazine, Frankwatching and BNR.

Through GiveRadar he works with nonprofit data: official charity registers from governments and tax authorities, brought together so anyone can check whether a charity is registered and transparent. He is based in Bali, Indonesia.

Interviews and coverage of Matt’s work on SEO, GEO and GiveRadar, and of his running and life abroad.

The studies behind his GEO work and GiveRadar, published open access with data and DOIs.

• Report AI answers about Dutch brands, tested against verified facts: 1,917 responses from ChatGPT, Gemini and Perplexity Timmermans Media, July 2026 · DOI 10.5281/zenodo.21803655
• Preregistration Preregistratie O2: AI-antwoorden en bronnen in NederlandPreregistration of a study on AI answers and their sources in the Netherlands Zenodo, September 2026 · DOI 10.5281/zenodo.22974863
• Dataset Merken en bronnen in AI-antwoorden van ChatGPT, Gemini en Perplexity in Nederland: data en analyseData and analysis on brands and sources in AI answers in the Netherlands Zenodo, October 2026 · DOI 10.5281/zenodo.23010967
• Report Global Charity Register Transparency Index 2026 (Edition 1) GiveRadar, August 2026 · DOI 10.5281/zenodo.21804904

Full list on ORCID and the SSRN author page.

Matt was born in ’s-Hertogenbosch and raised in Boxtel, North Brabant, the Netherlands. He studied ICT & Media Design at Fontys University of Applied Sciences in Eindhoven, specializing in marketing and cybersecurity, and graduated with a Bachelor of Science in 2020. His two years of cybersecurity trained him as an ethical hacker. He did a five-month internship in vulnerability management at the insurer a.s.r. in Utrecht, and spent his final semester as a cybersecurity intern at Blockchain Zoo in Ubud, Bali, where he ran a penetration test on a blockchain and crypto wallet the company was developing and advised it on the findings.

He founded Timmermans Media in 2018, while still a student, to get more experience building websites. He developed sites himself in HTML, JavaScript and PHP and sold them to businesses. In 2020 he started working on the agency full time, and SEO became the core of his work. As AI search grew in popularity from 2023 onward and more businesses wanted to be found there, his focus moved to SEO and GEO, which is his main work today.

He started GiveRadar in early 2026 while raising money for Pencils of Promise to build schools in Laos, Ghana and Guatemala, by running the 2026 New York City Marathon. Researching charities for that campaign showed him how hard it is to check whether a charity is officially registered and transparent. GiveRadar is the result: one place to search for a charity and verify it against official records. He met his fundraising goal and finished the NYC Marathon in 3:24:30.

Born

’s-Hertogenbosch, the Netherlands

Raised

Boxtel, North Brabant

Education

Bachelor of Science, ICT & Media Design, Fontys University of Applied Sciences

Trained as

Ethical hacker

Based in

Bali, Indonesia

Nationality

Dutch

Languages

Dutch, English, Indonesian

Matt’s official profiles and author pages.