Reactor is an AI-driven product and venture studio that thrives on big ideas, quick action, and a tight-knit community of builders, founders, and operators.
Zagreb, Croatia
History
Started in 2015 as a small product team solving complex digital problems. Today, Reactor works with founders, scaleups, and enterprise teams to turn ideas into products — and products into real businesses.
- 1
Small teams can outperform large organizations
AI changed the economics of building.
- 2
Most ideas should fail early
Fast validation beats slow execution.
- 3
Fast validation beats slow execution
Best work happens when building together.
- 4
Community compounds over time
Strongest ecosystems are built long before they're needed.
Reactor by the numbers
- 01
Our strong team cohesion, trust, mutual respect enabled us to prosper through the years, learning and growing from each experience.
10 years together
- 02
With +160 years of combined experience, we are a force to be reckoned with, carrying initiatives, empowering others for impact.
20 experts
- 03
Recognised and awarded for our excellence and continuous significant impact to our partners businesses.
Deloitte Fast 50
Built by senior operators, designers, and builders.
- 01 — 05
Neven Vuger
Product Design Lead
The MVP for your MVP
- 12 years of experience
- Countless design sprints
- One marathon
- 02 — 05
Ivan Vuković
Partner, CEO & CTO
Do you need CTO as a service?
- 20+ years of experience
- 100+ successful projects
- 15+ happy clients
- 03 — 05
Filip Užarević
Senior UX Researcher
Power your product with user insights
- 10+ years of experience
- Qual and quant product research
- Proven impact on metrics
- 04 — 05
Marko Fuček
Senior Product Designer
Delightful experience with business objectives reached
- 8+ years of experience
- SaaS growth expertise
- Impact driven design
- 05 — 05
Anja Bošnjak Mihić
Senior Product Designer
Make your design agile
- 9 years of experience
- Customer's problem solver
- Numerous usability tests
We’re building a team designed for the next era of product development.
See open positionsCommunity powerhouse
Reactor isn’t just a venture studio. It’s part of a growing network of founders, operators, designers, and engineers shaping the next generation of products in the region.
UX Research Meetup
Group dedicated to the promotion of UX research and encouraging its development.
JavaScript Meetup
A monthly meetup of JavaScript developer enthusiasts from Zagreb and region.
Vibe Coders Croatia
A community for builders who ship. No gatekeeping, no corporate stiffness.
Host your next meetup in our space with support from our experienced organizer.
- 60 people capacity
- Access to mentors
- 3.5 hours availability
- Sponsorship for food and snacks
One idea.One sprint.One real product.
If it works, we scale it. If it doesn’t, we learn fast and move on. That’s the system.
Start an idea