An independent software company
in Amsterdam.

Dunderline builds complex software products of its own: the ambiguous, hard-to-scope kind, taken from zero to one. We keep the company small on purpose and build AI-native, bringing deep engineering and considered design to problems with no off-the-shelf answer. It is software we are happy to run for years.

The company is registered in the Netherlands as Dunderline B.V. (Chamber of Commerce / KVK 78680220).

How we build

  • Zero to one

    Complex products taken from a blank page to something real. First-principles work, not templated apps.

  • Depth, not surface

    The hard engineering underneath: the systems, edge cases and infrastructure most app work skips.

  • Owned and operated

    We build our own products and run them for years. Design, engineering and operations under one roof.

Contact

For partnerships, press, or anything else, we read everything and reply to most.