Published : 19/05/2026
Customer Success Stories
Clece: How the Spanish Giant Migrated to SAP
The Spanish multi-service leader replaced its ERP system by migrating to SAP, with the help of Inetum. It was a challenge in terms of both agility and technology.
Thirteen new legal entities per month. Joint ventures that spring up at the rate of public tenders. And an accounting system that must keep up with this pace without faltering. This is everyday life at Clece, Spain's leading multi-service company.
“In Spain, Clece does everything related to essential services,” summarized José-María García-Reyero, head of the SAP Division of Finance & Services at Inetum Spain, who led the project. Social services such as home care, cleaning, security and maintenance services in hospitals, airports, universities, schools and nursery schools, among other buildings and public infrastructures are part of the company’s activity, a subsidiary of the ACS conglomerate, that operates through some 120 legal entities, including 80 joint ventures. A scope that is constantly changing.
An initial audit confirmed that migrating to SAP was the best way forward. In February 2023, Clece launched a call for tenders for the implementation. Inetum won the contract, thanks in particular to its co-construction approach. “We worked closely with them, validating our approach at each stage of the proposal,” recalled José-María García-Reyero.
The real challenge of this SAP migration was not the volume of data, but the way Clece distributes its costs among hundreds of entities that are constantly being created and evolving. To respond to Spanish public procurement contracts, the group must be able to isolate, consolidate, or sell off entire segments of its business at any time. “They can create several new entities in a month,” explained José-María García-Reyero. “With the old system, the activity would sometimes be completed before the entity had even been registered in the system!”
SAP Migration: Tailor-made Solutions
This structural agility is Clece's major competitive advantage. However, it imposes a formidable constraint on any ERP system: the accounting structure cannot be based on fixed components. It must be based on flexible analytical objects that can be modified on a daily basis so that entries can be reallocated, split, or merged at any time. “Integrating such a complex cost model into an ERP system is very difficult, regardless of the software provider,” admitted José-María García-Reyero.
Clece's transformation was not limited to the deployment of SAP S/4HANA as its ERP platform. Inetum, mobilizing 35 to 40 full-time equivalents, implemented a complete ecosystem: SAP Analytics Cloud for reporting, SAP Ariba to centralize purchasing from multidisciplinary suppliers, and SAP IAG for access management and compliance.
One component made all the difference: the “billing cockpit,” a proprietary Inetum tool adapted to multi-activity companies. Clece manages multiple billing sources: different systems depending on the business line, manual entries for certain service lines, etc. With this cockpit, it is possible to consolidate all supplier invoices and validation processes, so as not to waste valuable time on payments.
Deployed in Spain since May 2025, the system is now used by more than 1,000 employees across 250 legal entities. The goal is to achieve a 35% efficiency gain in key processes through automation. Deployments in the United Kingdom and Portugal are planned over the next years.
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