Celtra Email Format
Software DevelopmentNew York, United States201-500 Employees
Celtra is a software development company focused on digital advertising, delivering tools that improve the quality of creative assets, accelerate their production and delivery, and enhance campaign performance. Its solutions are designed to empower marketers, media platforms, and agencies to deliver more effective and scalable digital advertising. The company counts global brands such as Spotify, Adidas, Unilever, Hearst, and Kargo among its clients. The company is based in New York City, New York, and operates with a hybrid model, maintaining regional hubs in New York, London, and Ljubljana with teams across the U.S. and Europe. In 2025, Siemens AG announced a partnership with Celtra to boost creative production.