SLB agreed to acquire thermal management specialist Kelvion from Apollo Global Management for $4.1 billion including assumed debt, marking the largest acquisition in the oil services firm's shift toward hyperscale infrastructure. The transaction values Kelvion at $3.4 billion in cash with SLB assuming approximately $700 million in existing obligations. Apollo, which backed Kelvion through multiple holding vehicles since 2016, exits at a valuation multiple reflecting tightening data center cooling supply amid accelerating AI buildouts.
Kelvion manufactures heat exchangers, dry coolers, and closed-loop thermal systems—the physical infrastructure that keeps GPU clusters from thermal throttling. The German manufacturer supplies cooling equipment to hyperscalers, colocation operators, and industrial clients across 75 countries, with established production footprints in Europe and Asia that SLB currently lacks in its nascent data center portfolio. SLB's existing digital infrastructure business generated approximately $1.2 billion in annualized revenue as of Q4 2024, concentrated in software analytics and edge computing for energy operators. Kelvion immediately doubles that base and shifts the revenue mix toward hardware with contracted backlog visibility.
The deal accelerates SLB's publicly stated target of $5 billion in data center-related revenue, a figure the company expects to reach by 2028 through both organic growth and acquisition. That timeline now compresses. Kelvion's order book as of December 2024 stood at roughly $1.8 billion, with 68% tied to multi-year thermal infrastructure contracts with hyperscale operators building out Gen5 AI clusters. Those contracts carry indexation clauses tied to copper and aluminum commodity pricing, passing raw material volatility to end customers—a margin structure SLB's legacy oilfield services rarely achieved. The acquisition also brings manufacturing scale SLB cannot build internally: Kelvion operates 19 production facilities with capacity to deliver cooling systems for roughly 350 megawatts of data center load annually, equivalent to approximately 12 to 15 hyperscale campuses depending on rack density.
Operators should note SLB's willingness to lever its balance sheet—net debt post-close rises to approximately $6.2 billion, within covenant thresholds but materially higher than the $4.1 billion net debt position at year-end 2024. The company telegraphed this move in January earnings guidance, preserving $2.8 billion in undrawn revolver capacity specifically for "strategic infrastructure investments." That language now resolves into Kelvion. Apollo's exit timing reflects private equity's narrow window: thermal management multiples compressed 14% since mid-2024 as European industrial valuations reset, yet hyperscale procurement pipelines remain elevated. Apollo likely concluded this was the liquidity event before broader valuation mean reversion.
Watch for SLB's integration execution across three vectors. First, cross-selling Kelvion thermal systems into SLB's existing oilfield software clients now retrofitting operations facilities into edge compute nodes—particularly in the Permian Basin, where nine operators SLB services have announced edge AI pilots since Q3 2024. Second, whether SLB consolidates Kelvion's 19 plants or expands them to capture near-shoring demand as hyperscalers diversify supply chains away from Asian concentration. Third, the revenue recognition shift: Kelvion books revenue on equipment delivery, while SLB's software business runs on recurring SaaS models. The blend will either smooth cyclicality or introduce lumpiness depending on backlog conversion rates. Analysts expect clarity on plant consolidation by June earnings; procurement pipeline updates will likely surface in SLB's August investor day.
The German works councils at Kelvion's Bochum and Herne facilities have 60 days to review employment terms under codetermination rules, a procedural gate that rarely blocks deals but can delay integration by one quarter. SLB has not yet announced leadership for the combined thermal business unit.