SLB paid $4.1 billion in cash for Kelvion, a German industrial thermal management manufacturer, in the largest acquisition by an oilfield services firm since Baker Hughes bought GE Oil & Gas for $32 billion in 2017. The transaction closes a four-month quiet process and marks the first time a supermajor drilling contractor has bought outright into data center infrastructure.
Kelvion designs and manufactures heat exchangers, cooling towers, and liquid cooling systems for industrial clients across 75 countries. The company generates roughly $1.2 billion in annual revenue, with 42% derived from power generation and heavy industry. Data center thermal management accounts for 18% of current revenue but has grown 63% year-over-year since 2022. SLB will integrate Kelvion into its newly formed Digital Infrastructure Solutions division, which did not exist twelve months ago.
This is resource allocation dressed as diversification. SLB spent the past three years shedding $8.7 billion in upstream drilling assets while global rig counts declined 11%. During the same window, hyperscale data center construction starts rose 89%, and liquid cooling adoption rates doubled every sixteen months. The company is moving capital from cyclical hydrocarbon extraction into steady-state power density management. Kelvion's existing customer base includes 14 of the top 20 hyperscale operators, and its largest contract—a $340 million five-year cooling infrastructure deal with an unnamed cloud provider—renews in Q4 2025.
The deal structure matters for allocators tracking industrial consolidation. SLB is paying 3.4x trailing revenue and roughly 18x EBITDA, a 40% premium to the sector median for thermal equipment manufacturers. The company declined to disclose Kelvion's margin profile, but comparable German engineering firms in precision cooling run EBITDA margins between 19% and 23%. SLB's existing new energy and digital solutions segment posted $2.1 billion in revenue last year at 14% EBITDA margins, meaning Kelvion immediately becomes the highest-margin asset in the non-upstream portfolio.
Operators should watch three follow-on events. First, SLB's Q2 earnings call in July will disclose integration costs and whether Kelvion's data center contracts carry minimum volume commitments. Second, the company will likely announce a joint venture or partnership with a hyperscale provider before year-end—it has held talks with two of the largest three cloud operators since November. Third, expect secondary divestitures. SLB still holds $4.2 billion in legacy drilling equipment manufacturing assets that no longer fit the capital allocation model. Those exits will fund further digital infrastructure acquisitions and likely happen before the end of 2025.
The German federal competition authority has thirty days to review the transaction under standard merger control rules, but Kelvion has no direct competitors in the thermal management space at this scale. The deal is expected to close in Q3 2025.