We are a small, bootstrapped software company based in Karlsruhe, Germany.

codefortynine GmbH
Alter Brauhof 28
Karlsruhe 76137
Registered court: Mannheim (Germany), HRB 729485
VAT-No. (USt-IdNr.): DE291892727

Ben Romberg


Started with Atlassian apps in 2016 while working as a Product Owner in the games industry. Rediscovering his skills as a developer, expanded the portfolio of apps while founding codefortynine full-time in 2017.

Marlene Kegel

Atlassian Expert

Having used Jira and Confluence professionally for many years, Marlene has very deep user experience using Atlassian products. Responsible for community support and marketing.

Thomas Opiolka


As a long-time freelance developer having worked for numerous customers in various industries, Thomas knows the common pain points when using business software. Works together with codefortynine in a close partnership.

Images by Joe Miletzki



  • Marlene joined in January as Atlassian Expert.
  • Exceeded 2000 active customers.
  • Participated in the Atlassian App Week in Berlin.
  • Deep Clone for Jira featured on the Atlassian Marketplace.
  • Released External Data for Jira Fields and Quick Filters for Jira Dashboards on Cloud.


  • Founded codefortynine GmbH in January.
  • codefortynine approved as “Atlassian Verified” (now known as “Top Vendor”).
  • Thomas joined as Partner.
  • Moved to our new office at the Perfekt Futur.
  • Released Deep Clone for Jira, Merge Agent for Jira and 4 more apps on Cloud.
  • Released Google Calendar for Confluence on Server and Slack for Confluence on Data Center.


  • codefortynine approved for the Cloud Security Program by Atlassian.
  • Slack for Confluence supports Questions for Confluence and labels.
  • Released Google Calendar for Confluence on Cloud.


  • Slack for Confluence released on Cloud and Server.
  • Over 400 installs in our first 9 months on the Atlassian Marketplace.