Artificial intelligence is rapidly emerging as a major investment theme, with financial institutions positioning themselves to finance the infrastructure powering the next wave of digital transformation.
Citigroup is strengthening its focus on artificial intelligence infrastructure as global investment in data centres, advanced computing and AI-driven systems continues to accelerate.
According to reports, the bank has formed a dedicated AI Infrastructure Banking team aimed at expanding its advisory and financing role for investors, developers and companies involved in building large-scale AI infrastructure. The initiative reflects growing demand for capital and expertise as organisations race to support next-generation AI workloads.
Citigroup estimates that the global AI infrastructure buildout will require approximately $3 trillion in investment by 2030, underscoring the scale of funding needed to support data centres, high-performance computing, cloud platforms and supporting energy and connectivity systems.
Cross-bank approach to AI financing
The newly formed team draws leadership from Citigroup’s investment banking and corporate banking divisions, with senior executives retaining their existing roles. Rather than operating in isolation, the group will work closely with teams across the bank to structure financing, provide advisory services and deploy capital for AI-related infrastructure projects.
This integrated approach is designed to support complex, capital-intensive developments that often involve long timelines, regulatory considerations and evolving technology requirements.
Rising investment from Big Tech and enterprises
Citigroup has been tracking the rapid expansion of AI infrastructure investment for several years. In 2025, the bank projected that spending by major technology companies on AI infrastructure could exceed $2.8 trillion through 2029, a significant increase from earlier estimates.
The upward revision was driven by early large-scale investments from hyperscalers, along with growing enterprise demand for AI capabilities across industries such as finance, healthcare, manufacturing and logistics.
AI infrastructure emerges as a core banking opportunity
As artificial intelligence moves from experimentation to widespread deployment, infrastructure has become a critical bottleneck — and a major financing opportunity for global banks. Power-hungry data centres, specialised chips, networking capacity and resilient cloud architecture are now central to AI adoption.
Citigroup’s expanded focus highlights how AI infrastructure is increasingly viewed not just as a technology trend, but as a long-term structural investment theme shaping capital markets, corporate finance and global economic growth.
Key takeaways
- AI infrastructure is becoming a multi-trillion-dollar investment opportunity
- Banks are expanding roles in financing and advisory for AI projects
- Demand is driven by data centres and high-performance computing
- Big Tech and enterprises are accelerating AI-related capital spending
- Infrastructure is now a core enabler of AI adoption at scale
