The financing layer for AI infrastructure expanded sharply this week, with capital moving past application-layer bets and into the physical and operational systems that enterprises rely on to run AI in production. A new $10 billion data center vehicle, a Series B for an AMD-only AI cloud, and three growth rounds for simulation, observability and cost-management platforms all closed within five trading days. The throughline is consistent: as enterprise AI workloads scale, investors are funding the substrate beneath them, not just the models.
Helix Digital Infrastructure
Round: $10B+ launch capital commitment | Sector: Cloud / AI Data Center Infrastructure
KKR launched Helix Digital Infrastructure with more than $10 billion in pledged capital, anchored by the Kuwait Investment Authority, Nvidia and Vistra. The new entity is purpose-built to finance and deliver hyperscale AI data center capacity, combining institutional balance sheet with strategic silicon and utility partners. For enterprise IT leaders, Helix is a signal that AI infrastructure supply is now being financed at the same scale as energy and telecom, with corresponding implications for capacity planning and pricing.
TensorWave
Round: $350M Series B (post-money valuation $1.55B) | Sector: Cloud / AI Infrastructure
TensorWave raised $350 million in a Series B co-led by AMD Ventures and Magnetar Capital, nearly quadrupling its valuation in roughly a year. The Las Vegas-based AI cloud runs exclusively on AMD Instinct accelerators and the ROCm software stack, currently operating about 10,000 GPUs across three data centers with leases covering 500 megawatts of capacity. AMD’s direct participation reframes the round as ecosystem capital: the chipmaker is financing a cloud channel that exists specifically to keep its silicon competitive against Nvidia at production scale.
PhysicsX
Round: $300M Series C (post-money valuation $2.4B) | Sector: AI Engineering Simulation / Semiconductors
London-based PhysicsX closed a $300 million Series C led by Temasek, more than doubling its valuation to $2.4 billion in under a year. Existing investors Nvidia, Applied Materials, Siemens, Atomico and General Catalyst all increased their stakes alongside new backers M&G Catalyst and Intrepid Growth. The company compresses industrial engineering simulation from days to seconds, with active customers across semiconductors, aerospace, energy and data center design, putting it in the operational AI category enterprise CIOs increasingly track.
Coralogix
Round: $200M Series F (post-money valuation $1.6B) | Sector: AIOps / Observability
Coralogix raised $200 million in a Series F co-led by Advent and the Canada Pension Plan Investment Board, lifting total funding to $550 million just eleven months after its Series E. The observability platform is now explicitly positioning itself around AI agent monitoring, a category that effectively did not exist as a budget line two years ago. With autonomous software systems entering production, observability is no longer a backstop function; it is becoming an audit and reliability requirement.
PointFive
Round: $60M Series B (post-money valuation $500M) | Sector: Cloud Cost Management / FinOps
PointFive closed a $60 million Series B led by Accel, with Salesforce Ventures and Index Ventures participating, backed by 6x ARR growth between 2024 and 2025. The Tel Aviv and New York-based company markets an AI Efficiency OS that identifies cloud waste at the source and routes fixes to engineering owners, with customers including Nubank, E.ON and Hertz. The round lands as enterprise cloud bills, particularly for AI inference, become the operating expense most likely to surprise CFOs.
The Weekly Funding Pulse tracks the most significant IT infrastructure, cloud, semiconductor, networking, and ITSM funding rounds each week. Coverage is curated for enterprise IT professionals and decision-makers.
