Summary
- Madison Air has agreed to acquire ebm-papst at an enterprise purchase price of about $5.4bn.
- The German manufacturer supplies fans, motors, and airflow technology across data centres, HVAC, refrigeration, and industrial applications.
- The transaction puts growing data centre thermal demand behind one of the largest recent deals in the cooling supply chain.
Madison Air Solutions has agreed to acquire German fan and airflow technology manufacturer ebm-papst at an enterprise purchase price of about $5.4bn, giving the US group a substantially larger position in the data centre cooling supply chain.
The transaction values the purchase at approximately $5.0bn after expected future tax savings. Madison Air plans to finance the deal through cash on hand alongside debt and equity financing, and expects the acquisition to add around $30bn to its addressable market.
Headquartered in Mulfingen, Germany, ebm-papst is a major supplier of electronically commutated fans, motors, and integrated airflow systems. It operates in roughly 40 countries and is expected to generate about $2.8bn of revenue and $343m of adjusted EBITDA in 2026.
Data centres sit inside a wider portfolio spanning HVAC, refrigeration, cleanrooms, industrial processes, and other applications, but rising cooling demand from high-density computing has made the sector an increasingly important growth market. Reuters reported that equipment supplied into hyperscale data centres accounts for roughly a third of ebm-papst sales.
That exposure gives the acquisition a more direct data centre infrastructure angle than a conventional building-services transaction. AI racks are pushing more heat into smaller footprints and driving greater deployment of direct liquid cooling, but the shift does not eliminate air-moving equipment from the facility.
Fans remain important in heat rejection, chillers, cooling towers, dry coolers, air handling, electrical rooms, ancillary plant, and hybrid cooling architectures. Even facilities that remove a large share of server heat through liquid still have to move that heat away from the building and manage the remainder of the thermal environment.
Madison Air says ebm-papst has more than 1,200 patents and more than 250 million fans installed worldwide. The acquisition therefore adds not just manufacturing capacity but an established engineering and customer base in equipment that is often specified early in HVAC and thermal-system design.
The transaction also comes as the data centre supply chain is being forced to scale alongside the campuses it serves. Cooling-system manufacturers are being asked to support larger orders, shorter deployment programmes, denser loads, and greater geographical coverage. Operators increasingly need equipment suppliers capable of supporting standardised designs across several countries rather than one-off component sales.
Madison Air expects around $160m of annual run-rate synergies by the third year following the acquisition. It also expects pro-forma net leverage below four times at closing, with a target of reducing that figure to around 2.5 times within two years.
For ebm-papst, the deal provides access to Madison Air’s North American footprint at a time when US AI data centre construction is absorbing growing volumes of thermal equipment. For Madison Air, it adds a German engineering business with established European and Asian customers and a sizeable installed base.
Madison Air has said the Mulfingen headquarters and core German research, development, and production operations will remain in place. Completion remains subject to the transaction process and regulatory approvals.
The acquisition is another sign that data centre cooling is moving from a specialist engineering issue into a major industrial market. Liquid loops attract much of the attention around AI infrastructure, but the wider thermal chain — fans, motors, pumps, heat exchangers, controls, and heat rejection — is becoming a much larger capital and supply-chain business around it.
