About

A small team that ships.

Actinium is a web studio from Belgrade, working with clients across the US and Europe since 2017. We design, build and maintain websites, stores and custom platforms — including the projects other developers walk away from.

50+projects delivered
9+years in business
30+clients · US & EU
Why we’re called Actinium

Named after element 89.

Actinium heads the actinides — a series of elements defined by the sheer energy they carry. We took the name on purpose. That same energy goes into everything we design and build, and it doesn’t run out at launch: we stay involved, maintaining and improving the work for years. The squares in our logo are a nod to it — small, deliberate building blocks that add up to something that lasts.

Web development workspace at Actinium
Founder-led

Founder-led. Developer-built. No agency theater.

Actinium is a small studio from Belgrade, led by people who actually design, build and maintain the work. Clients don’t get passed between account managers and production teams — the same technical thinking stays involved from the first review to launch and long-term support.

  • 9+ years building websites and applications
  • 50+ projects delivered
  • WordPress, Shopify, WooCommerce, SaaS and AI experience
  • Our own products: ImageTagger AI and BagCheckBaby
  • Clients across the US and Europe
Founder of Actinium working on a laptop
Hands-onfrom first call to launch
How we work

What working together looks like.

Nine years in, the plot is reliable: four steps, no agency theater, no surprises on the invoice.

Discovery & planning

We learn your business and define exactly what the site has to achieve — before a single pixel is drawn.

Design & prototype

Structure first, decoration second. You approve the design before development starts — no surprises.

Build & integrate

Clean, fast code on the right platform — WordPress, Shopify or fully custom — with every integration tested.

Launch & stay

We launch, monitor and maintain. Most of our clients have been with us for years — on purpose.

Client feedback

Results and client feedback.

A story is more convincing when someone else tells it. Below is honest client feedback from projects across the US and Europe.

5.0client rating

5.0 client rating on Clutch and Google.

Client feedback

Client feedback from projects across the US and Europe — quality work, fair value, and clients who keep coming back and referring us on.

CommunicativeDetail-orientedOn timeGood valueWould refer again
6.9avg. Google position weeks after launch — Zamotuljko
19%search CTR on branded & niche queries
$15kcustom platform with CV management — Open Doors
50+projects delivered for clients across the US & Europe

“The project was well organized and delivered on time. They were patient, detail-oriented, and truly invested in the outcome.”

Maja MilanovićFounder, Zamotuljko — e-commerce build
Client feedback · US & Europe

“He implemented all our wishes and also contributed his own creative ideas and solutions — and then moved the store to Shopify with us.”

Lena SchmidtProject Manager, Before Eight Group GmbH — WooCommerce → Shopify
Client feedback · US & Europe

“We began receiving more candidate applications directly through the website. The new CV database made our internal workflow faster and more organized.”

Milica TošićFounder & CEO, Open Doors — custom recruitment platform
Client feedback · US & Europe

Curious how your site’s story continues?

Send us your URL and get an honest review of speed, SEO, UX and conversion — within 48 hours. No call, no pitch deck. If it’s useful, we talk.