Swiss industrial technology group ABB has agreed to buy British engineering company Rotork in a recommended cash takeover carrying an enterprise value of about $5.5 billion. The deal values Rotork’s share capital at approximately £4.1 billion and would bring the UK flow-control specialist into ABB’s global automation business.
ABB is offering 503 pence in cash for each Rotork share. Shareholders would also be entitled to an interim dividend of up to 3 pence, taking the total potential payment to 506 pence per share. Rotork’s board has unanimously backed the offer, but the acquisition still requires shareholder, court and regulatory approval.
What ABB is offering Rotork shareholders
The 503p cash offer represents a premium of about 60% to Rotork’s average share price during the three months before the announcement. Rotork shares jumped approximately 67% after the deal was disclosed as investors responded to the takeover premium.
The permitted dividend of up to 3p would not reduce ABB’s cash payment. An eligible shareholder could therefore receive up to 506p per share if the acquisition completes and the dividend is paid under the agreed terms.
The £4.1 billion figure represents the approximate value of Rotork’s share capital. The larger $5.5 billion enterprise value uses a broader calculation that includes financial items such as cash and debt.
Why ABB wants to acquire Rotork
Rotork manufactures electric actuators and other intelligent flow-control equipment. These devices open, close and regulate valves controlling the movement of water, oil, gas and other materials through industrial systems.
Its products are used in oil and gas, chemicals, water treatment, power generation, mining, marine operations and general industry. Rotork also supplies equipment for data-centre cooling, hydrogen, carbon capture and desalination projects.
ABB believes Rotork will strengthen the field-device layer of its automation portfolio. Rotork’s equipment controls physical industrial processes, while ABB provides wider monitoring systems, software and electrification technology.
The combination could connect Rotork’s actuators with ABB’s digital platforms, allowing customers to monitor equipment condition, identify maintenance requirements and manage industrial processes through a more integrated system.
Rotork’s financial performance
Rotork generated 2025 revenue of ÂŁ777.3 million, equivalent to approximately $1 billion, and adjusted operating profit of ÂŁ191.5 million. Its adjusted operating margin reached 24.6%, while order intake totalled ÂŁ782.6 million.
The company delivered average annual organic revenue growth of approximately 8% between 2022 and 2025. ABB expects Rotork to add around 3% to total group revenue and approximately 12% to revenue within its Automation business.
The $5.5 billion enterprise value represents approximately 5.3 times Rotork’s 2025 sales and 19.5 times EBITDA. ABB expects the EBITDA multiple to move towards the mid-teens after anticipated benefits from combining the businesses are included.
What happens to Rotork’s UK operations?
ABB plans to operate Rotork as a separate division within its Automation business. Rotork would follow ABB’s decentralised model, allowing divisional management to make operating decisions close to customers.
ABB has said it has no current plans to significantly change Rotork’s UK presence. Britain is expected to remain an important manufacturing and technology base, with ABB supporting continuity in Rotork’s leadership during the integration.
This provides initial reassurance but is not a permanent guarantee for every job or facility. Employees will be watching the formal takeover documents for any binding commitments covering staffing, manufacturing and research operations.
ABB employs more than 1,700 people in the UK. Rotork is headquartered in Bath and has British engineering or manufacturing operations in locations including Leeds and Manchester.
How ABB will finance the acquisition
ABB plans to finance the deal through existing cash and committed bank facilities. It held approximately $5.8 billion in cash and marketable securities on June 30, 2026.
Its financial position is also expected to benefit from the planned sale of ABB’s Robotics business to SoftBank. That transaction is forecast to generate approximately $4.8 billion in net cash proceeds and is targeted for completion during the second half of 2026.
ABB expects to retain capacity for further acquisitions and its announced share-buyback programme after funding the Rotork transaction.
What shareholders need to know
Rotork shareholders do not need to sell immediately because the takeover has not yet completed. They will receive formal documents setting out the voting process, conditions and expected payment timetable.
If the scheme becomes effective, eligible investors will receive the agreed cash consideration and Rotork’s shares are expected to be removed from the London Stock Exchange. If the transaction fails, Rotork will remain independent and the takeover payment will not be made.
A rival bidder could theoretically submit a higher proposal before completion, although no competing offer had been announced alongside ABB’s agreed transaction.
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Approvals and completion date
The acquisition will be implemented through a court-sanctioned scheme of arrangement under the UK Companies Act 2006. It requires Rotork shareholder approval, court sanction and customary regulatory clearances.
Completion is expected in the first half of 2027 if all conditions are satisfied. The official ABB takeover information provides the formal offer documents and transaction updates.
Why the deal matters for British business
The acquisition continues a wider pattern of overseas buyers targeting British companies with specialist technology and international customers. The ÂŁ9.5 billion takeover offer for Intertek also demonstrated foreign demand for established UK businesses with global operations.
International interest extends beyond industrial engineering. The proposed E.ON acquisition of OVO Energy’s UK residential business highlighted similar consolidation in Britain’s energy market.
Rotork investors are being offered a substantial cash premium, but completion would remove another specialist engineering company from the London market. Attention will now focus on the shareholder vote, regulatory reviews and ABB’s longer-term commitments to Rotork’s British workforce and manufacturing operations.
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