How ArcelorMittal’s 125,000 Employees Power Performance through Collective Intelligence

The challenge: Making scale a strength, not a constraint

ArcelorMittal University, the group's central learning function, operates with three people at its Luxembourg headquarters. The team's mandate, however, is anything but small: delivering learning that is relevant, accessible, and aligned with business performance for more than 125,000 employees worldwide.

For years, the organization relied on a legacy LMS that had served it reasonably well — building a base of around 110,000 active learners. But as the organization grew in complexity, its limitations became more apparent. Scaling content across sites and languages was administratively intensive. The deep technical expertise embedded across ArcelorMittal's plants, research centers, and field teams had no reliable way to surface and spread. And the model itself — a central team curating and pushing content outward — couldn't stretch far enough.

Stacey VanderHeiden Güney, ArcelorMittal’s Global Head of Learning and General Manager, frames the shift they were looking for in clear terms: "Training is something we do to people. Learning is something we do with people, and performance is something we do together as teams."

The goal wasn't a better content library. It was a fundamentally different model — one where the organization's own experts could drive learning at the pace of the business.

The solution: Collaborative learning at enterprise scale

ArcelorMittal launched on 360Learning via a full migration, branded internally as AMU 360. From the outset, the team made a deliberate choice: democratize not just the learner experience, but the author experience too.

Rather than positioning L&D as the source of all knowledge, ArcelorMittal University positioned itself as an orchestrator — designing the ecosystem, setting the conditions, and then stepping back to let the business drive. "We will teach you how to fish," Stacey explains, "but we don't have very many fish to give. You have your own ponds and you're probably going to have many more fish." 

360Learning's group architecture gave the team the tools to do exactly that: purpose-built learning spaces — or "little miniature campuses," as Stacey calls them — for individual business units, functions, and communities of practice, each with its own administrators and content. The Steel Academy, Finance Academy, Sustainability Academy, and Project Management Academy all took shape as active communities, managed locally but visible globally. Approximately 250 administrators distributed across the world now manage these spaces alongside a growing network of subject-matter expert authors.

Benjamin’s story: From one plant to the world

The clearest illustration of this model in practice came from an unexpected place: a plant maintenance operations manager named Benjamin Pyliser in Gent, Belgium.

When 360Learning's learning needs feature launched, requests flooded in — upvoted hundreds of times — for SAP training, specifically on the asset maintenance and reliability planning module critical to ArcelorMittal's plant operations. It was a knowledge gap hiding in plain sight: real, urgent, and entirely invisible through traditional L&D channels.

Benjamin saw it and put his hand up. Within 24 hours of being introduced to the platform, he had started building his first course. "I know this story completely from A to Z," he recalls. "And at that point Stacey let me know that there was a system in place — 360Learning — and in 24 hours I started creating my first course." 

He published. Within weeks, he was receiving messages from Brazil, Italy, Spain — colleagues across the global network asking for translations, requesting new modules, and sharing their own adaptations. A community of practice had formed spontaneously around knowledge that had previously been inaccessible to anyone outside one Belgian plant. Benjamin went on to produce 59 courses, now totaling over 9,000 enrollments. He then wrote a tutorial explaining how to do what he had done — so others could follow suit.

"Before it wasn't possible," he says. "It made it possible to share my knowledge around the world, around all sites that needed those courses." 

Stacey's read on it is equally direct: "Now every plant can have a Benjamin, which is awesome." 

The impact wasn't confined to engagement metrics. Maintenance teams working from standardized, expert-authored guidance saw real operational improvements: fewer breakdowns, faster data processing, reduced production downtime. Those gains translate into tangible financial savings: the 360Learning platform has delivered approximately €116K in education and training savings and over €150K in standardization savings — totaling ~€266K+ in identified financial ROI. Critically, these savings are recurring, and the marginal cost of adding each new learner is effectively zero, meaning ROI scales as adoption grows. 

Alongside SME-led content creation, 360Learning's AI Content Builder and one-click AI translation made it possible for any employee — not just professional instructional designers — to publish courses quickly and reach a multilingual audience. Global campaigns, including the Lifesaving Golden Rules health and safety program (deployed to over 100,000 employees and contractors) and a cybersecurity awareness initiative reaching 80,000 employees, ran through the same platform, using the same tools. ArcelorMittal also leverages 360Learning's SAP SuccessFactors integration, ensuring learning completions are automatically reflected in their HR system of record.

The results: A culture that pulls, rather than pushes

In its first year, AMU 360 reached more than 150,000 active learners — exceeding the peak of the previous platform after a decade of operation. Active learners grew 75% in the first six months. More than 550 learning paths have been created by internal experts. The platform now receives approximately 60 learner reactions and comments per day.

Beyond engagement, the program has delivered verified financial and operational impact. In addition to the ~€266K+ in identified financial ROI, ArcelorMittal highlights significant non-financial gains: self-paced learning at the point of need has reduced time away from operations, accelerated onboarding and refresh training cycles, and decreased reliance on classroom scheduling — translating into higher productivity and less operational disruption. The shift to a centralized, always-current digital learning model has also strengthened change resilience: courses are updated once and deployed everywhere, reducing risk during software upgrades and process changes, and lessening dependency on individual knowledge holders. 

But the shift Stacey points to as most significant is behavioral: "It's really changed from us trying to push learning out to people asking and trying to pull learning in." 

Business unit leaders who never requested learning resources before are now asking for their own academies. Frontline employees are flagging knowledge needs through the platform. Learners are coming back — not because they have to, but because they find value there. The L&D team, meanwhile, has been freed from administrative firefighting to focus on what Stacey calls being a pioneer: getting ahead of the skills the business will need, before it knows it needs them.

Looking ahead

With the foundation in place, ArcelorMittal University is now moving into skills-based learning — shifting from tracking completion to identifying and closing gaps at the individual and team level. AI sits at the center of that roadmap, both as an authoring accelerant and as a vehicle for the kind of personalized, in-the-flow-of-work learning that Stacey sees as the future of the discipline.

Her vision for what comes next is clear: "taking down all boundaries of language, time, presence, and tapping into that collective expertise — bringing that Benjamin expert, that guidance, him being your guide on the side." 

In a business built on the strength of steel, the next competitive advantage is the strength of shared knowledge.