Case Study: Verivox achieves 87% faster releases and 85% reduced test time with ThoughtWorks' Go continuous delivery solution

Verivox - Customer Case Study

Verivox, one of Germany’s largest consumer portals for energy and telecoms with millions of users and brokered contracts, faced a fast-moving market where tariff and calculation changes required rapid updates. Longer deployment cycles and slow testing—historically up to two days to deploy and quarterly major releases—created a bottleneck that threatened revenue and customer retention when attractive tariffs weren’t published quickly.

By adopting Agile/XP practices and ThoughtWorks’ Go for CI/CD—using build pipelines, feature toggles, artifact-based deployments and a parallel test grid—Verivox streamlined delivery and removed silos. The result: weekly releases instead of quarterly, release time improved by about 85–87%, test time cut by 85%, roughly 1,200 person-hours saved per year, and a reported 6× ROI, with deployments now taking hours instead of days.

Verivox