From Legacy Limits to $2M Savings in 60 Days

How did one of the world’s biggest grocery retailers unlock $2M in savings and future-proof its mainframe — in just 60 days? Here’s the story.

When your supply chain spans 11 countries, there is no room for a weak link. Tesco’s mainframe hosting lacked the scalability and expert support needed to keep pace with growth — putting global operations at risk. Partnering with Ensono, they completed a full transition of mainframe hosting and support in just 60 days, unlocking immediate savings and laying the foundation for long-term modernization.

What were the results?

• Over 300,000 employees rely on systems that run seamlessly, 24/7
• $2M in savings reinvested to fuel future innovation and growth
• A five-year modernization roadmap positions Tesco to evolve with confidence

Why does this matter? For large-scale global retailers, mainframe reliability underpins everything — from supply chain to customer experience. A rapid, zero-disruption transition to expert-managed hosting is one of the most effective ways to unlock both immediate savings and long-term strategic momentum.

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