Case Study · Energy Sector · Managed Mobile Services
A DAX-listed energy technology corporation
57,000 mobile users worldwide – a service management that thinks ahead and saves
Managed Mobile Services by Enterprise Tech Solutions AG for one of our largest clients
For a DAX-listed corporation in the energy sector – one of our largest clients – Enterprise Tech Solutions AG has been running the Mobile Service Management for around 57,000 end users worldwide for five years. In that time, ETS has demonstrably saved over €1.4 million – with no compromise on service quality or availability.
When a corporation of this size has its workforce working mobile around the globe, mobile communications quickly become hard to oversee: thousands of contracts, tariffs and devices, a multitude of internal and external platforms, providers in different countries – and costs that grow quietly without active management. This is exactly where ETS comes in: not as a mere ticket processor, but as a proactive control function for everything related to mobile communications within the corporation.
~57,000
managed mobile users worldwide
€1.4M
documented savings since contract start
5 years
of trusted partnership
The initial situation
In a globally structured corporation, mobile communication topics are spread across many departments, platforms and countries. Data, processes and workflows had grown historically and were not consistently structured. A reliable overall view of requests, costs and optimization potential was missing – particularly for a cost driver that weighs especially heavily with a workforce travelling worldwide: roaming usage.
Our scope of services
ETS takes on the comprehensive management of all mobile communication topics and requests of the corporation. The role bundles four focal points:
1. Comprehensive Mobile Service Management.
As the central service management function, ETS handles and steers all mobile communication requests – across internal as well as external and third-party platforms. ETS is the interface between service owner, service management, end users and provider, and takes on escalation management towards the provider whenever requests become critical or time-intensive. The support covers not only what has been commissioned, but also what ETS independently identifies as relevant.
2. Data, process and optimization management.
ETS organizes, structures and analyses existing data, processes and workflows, assesses the current state and derives an optimized target state from it. Sources of error, process deviations and improvement potential are identified systematically – and resolved in concrete projects. From initiation to successful completion, ETS is responsible for the project and process management that sustainably improves the workflows.
3. Cost optimization – with a focus on roaming.
Because the corporation supports its employees worldwide, roaming usage is a central cost lever. ETS identifies savings potential and implements savings measures within targeted projects. The result is measurable: over €1.4 million in documented savings since contract start – with consistently high service quality.
4. Transparency and feedback loops.
ETS builds and maintains structured feedback loops between service owner, service manager and end users. Feedback, measures, results and optimizations are documented, and new structures, processes and platforms are actively co-developed. The result is transparent communication between all parties involved – and a continuous improvement of service quality, cost-efficiency and process stability.
Results
The key results of the partnership can be expressed in concrete figures:
| Metric | Result with Enterprise Tech Solutions AG |
|---|---|
| Documented savings | over €1.4 million since contract start |
| Managed end users | approx. 57,000 worldwide, centrally steered |
| Duration of partnership | five years and counting |
| Mobile communication requests | fully handled via a single point of contact |
| Processes | structured, documented, continuously optimized |
Beyond pure cost savings, the partnership has given the corporation one thing above all: controllability. Mobile communications are no longer a diffuse catch-all topic, but a transparently managed area with clear responsibilities, structured data and a partner who spots optimization potential before it turns into a cost problem.
Our recommendation
For corporations with a large, internationally mobile workforce, this partnership shows what professional managed mobile service management can achieve: not just processing requests, but structuring data, improving processes and actively reducing costs – especially in roaming. Enterprise Tech Solutions AG acts as a proactive interface between all parties involved and turns mobile communications from a cost risk into a controllable, economical service. The fact that the partnership has lasted five years is the best proof of its lasting value contribution.
As of May 2026 · Client shown anonymized – not named, in line with internal policy.
