About / Who's behind Adductio
Small agency. Clear rules. No fluff.
Adductio is a team running Meta ads for small and medium businesses in Serbia. Our approach is simple: 30-day trial for €149, no yearly contracts, client owns everything. Backed by DecaRoy — sister agency specialized in building websites for SMEs across Europe.
Why we started Adductio.
We've been running DecaRoy for a while now — a sister agency that builds sites for SMEs across Europe. And we noticed one thing that kept nagging us.
A site alone, with no traffic, is just a digital business card. Clients would call us 3 months in and ask: "Site looks great, but how do I get people to visit it?" That's where they'd start spending money — often with bad agencies — on ads that don't work.
We started Adductio to fix that. Same approach as DecaRoy: numbers before stories, transparency, no yearly contracts, client owns everything. The difference is now we don't just build the site — we bring the buyers too.
Four rules we never break.
Small team. Big experience.
Our ego doesn't grow with team size. We work with 4 core members plus a network of freelance creatives and video producers. Every client has one person as their contact. No "ticket system". No "your message will be picked up by a colleague".
Francesco Dei Campielisi
Co-founder · DecaRoy & Adductio
Specialty: direct response funnels, automations, scale ops. Leads strategy and tech setup at Adductio.
Božo Marjanović
Frontman for Serbian market
Face of Adductio in Serbia. Runs sales calls and appears in ads as spokesperson. Knows the local market.
Adductio is backed by DecaRoy.
Adductio is part of the same group as DecaRoy — sister agency specialized in building WordPress sites for small and medium businesses in Serbia, Croatia, Montenegro and Italy.
What does that mean for you? First: we understand how the Serbian market works, how SME clients talk, what makes them buy. Second: if you need both a site + ads, both can come from the same place, with the same working philosophy — no "I'm for the site, they're for ads, fault is on the other".
The company is registered in Sweden (DecaRoy AB) with operating team in Belgrade. European financial transparency. Local communication in Serbian.