Enabling creativity since 2006

Successful advertising starts with impactful creatives. We help marketers, media platforms, and agencies succeed by scaling their creative ideas through technology. Our culture and people are a lot like the software solutions we build – creative, innovative, and always one step ahead.

Join our team

400 +

enterprise-level customers

120B +

impressions delivered annually

5M +

creatives made annually

See what it’s all about

Our story

2006 Co-founders Miha and Maja Mikek along with Matevž Klanjšek incubate Celtra at Babson College.

2007 The first product, FunkyCall, is launched.

2008 Celtra Marketing Platform follows, transforming campaign management in mobile marketing.

2010 The new AdCreator propels Celtra into the creative technology space.

2011–2016 Celtra secures a series of funding rounds and becomes the leading creative platform for mobile rich media ads with over 400 global clients.

2017 The first global brand direct partnership starts with Unilever.

2020 The Creative Automation platform is launched as a pioneer in its category, enabling advertisers to execute complex global campaigns faster and boost ad performance.

2021 A new chapter of growth begins with a successful majority stake acquisition by STG Partners.

2023 The second-generation Creative Automation platform is introduced, with AI capabilities integrated across Celtra’s solutions.

2024 onward Continuous innovation and growth.

Learn about our culture

We are creative
Continuously developing bold and cutting-edge products to address.
We are driven
Maintaining relentless motivation to keep our eyes on the end goal.
We are customer-focused
Creating true value for customers, always committed to help our customers succeed.
We are team players
Prioritizing collaboration, partnership, and trust when building winning products.
We are constant learners
Owning and sharing what works and what doesn’t, every day. Because how else can one learn?