Ostrom, one of Germany's leading digital electricity providers, is growing rapidly  and has put data protection at the heart of its corporate strategy from the very beginning. But with almost 100,000 customers, the team reached its limits: new regulatory requirements, growing demands from investors, and rising customer expectations made it clear that data protection had to be set up professionally and scalably. With heyData, Ostrom found the right partner. The digital platform offers transparent costs, legally sound processes, and clear scalability at enterprise level, without a dedicated full-time role. From audits and revised data protection policies to mandatory trainings, data protection became an integral part of the company culture. As a result, Ostrom was able to not only save costs but also strengthen the trust of customers and investors. The result: data protection as a success factor that safeguards further growth.

About Ostrom

Ostrom is a digital, green electricity provider active throughout Germany. The company offers dynamic and variable electricity tariffs based on the actual share of renewable energy in the grid. This business model is convincing: today, almost 100,000 customers in Germany trust Ostrom.

From the very beginning, data protection was a central part of the corporate strategy. But with rapid growth, the team reached its limits and looked for a professional solution.

The Challenge: Data Protection During Rapid Growth

"When we were still very small, we handled data protection internally. But the more we grew, the clearer it became: we need professional support."

With the step from the first hundred to tens of thousands of customers, the requirements changed. New regulatory requirements, critical questions from lawyers and investors, and rising customer expectations made it clear: data protection had to be managed scalably, efficiently, and in a legally sound way.

The Decision for heyData

Why Ostrom chose heyData was obvious to the team:

  • Digital platform: A modern, user-friendly tool that covers all relevant processes.
  • Transparent costs: A clear pricing structure with no hidden fees.
  • Scalability: Data protection at the level of a large corporation — without a dedicated full-time role.
  • Venture capital readiness: In due diligence processes, data protection is a key topic. With heyData, Ostrom could professionally demonstrate to investors at any time that GDPR and compliance are firmly anchored in the company.
"Internally, we couldn't handle this ourselves at our size. With heyData, we're significantly more cost-efficient and always up to date."

The Implementation: From Audit to Training

The start with heyData was structured and comprehensive:

  • Conducting a full audit
  • Revising the data privacy policy
  • Introducing mandatory employee trainings
  • Integrating data protection trainings into the onboarding of new colleagues
  • Annual audits to ensure Ostrom is "state of the art" at all times

This turned data protection from a one-time task into a continuous part of the company culture.

Data Protection as a Hygiene Factor

For Ostrom, one thing is clear: data protection today isn't a "nice-to-have" but a hygiene factor.

"If you neglect it, risks arise: reputational damage, loss of trust, and, in the worst case, regulatory problems. With heyData, we have the certainty that we meet all requirements — not just today, but tomorrow as well."

Conclusion: A Partner for Growth

For Ostrom, data protection isn't an isolated topic but a central part of the business model. Every tool decision, every infrastructure question is evaluated from this perspective — from AWS hosting in Germany to internal compliance.

"In the end, the decisive factor for us was that heyData offers a digital solution that grows with us. Data protection doesn't just affect our industry — it's relevant for every company. For us, heyData is the right partner to support our growth securely and professionally."

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Key Takeaway:

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With heyData, Ostrom was able to turn data protection from an internal side task into a scalable success factor — conveying trust and security to customers as well as investors from day one.