ABB Ltd to Acquire Rotork plc in $5.5 Billion Cash Deal

ABB Ltd has agreed to acquire Rotork plc in a cash offer valued at approximately $5.5 billion, with the transaction expected to close in the first half of 2027. Under the terms, Rotork shareholders will receive 503 pence in cash per share — a premium of around 60% to the latest 3-month average share price. Shareholders are also entitled to an interim dividend of up to 3 pence per share for the period to June 30, 2026, with no reduction to the offer value.

"The transaction is expected to further strengthen ABB's focus on electrification and automation and expand its Automation business area's offering for large and complex infrastructure and industries."

"Rotork's business with well-established positions in mission-critical flow control and instrumentation is highly complementary to ABB's existing automation portfolio and will strengthen ABB's position at the field-device layer."

The deal implies an enterprise value of around $5.5 billion, reflecting an EV/Sales multiple of around 5.3 and an EV/EBITDA multiple of around 19.5x. The acquisition is aimed squarely at strengthening ABB's automation portfolio. As stated in the announcement: Rotork's position in flow control and instrumentation fills a specific gap:

Rotork recorded an average annual organic revenue growth of 8% from 2022 to 2025. The acquisition is expected to add around 3% to ABB's revenues and be immediately accretive to ABB's Operational EBITA margin. Within ABB's Automation business area specifically, Rotork is expected to add around 12% to revenues.

"Upon closing Rotork is expected to operate as a separate division under a strategic growth mandate within ABB's Automation business area."

"ABB's capital allocation framework includes pursuing value-accretive acquisitions, and the company will finance the transaction through existing cash resources as well as committed bank facilities."

Integration plans keep Rotork at arm's length operationally: Funding comes from internal resources and a pending divestment:

ABB reported approximately $5.8 billion in cash and marketable securities as of June 30, 2026. Additionally, the signed divestment of ABB's Robotics business to SoftBank is expected to deliver approximately $4.8 billion in net cash proceeds at closing, targeted for the second half of 2026.

"The transaction is expected to close in the first half of 2027 and is subject to Rotork's shareholder vote and customary regulatory approvals."

On the UK front, ABB notes the country is an important market, with over 1,700 employees. The company intends to support continuity of leadership and maintain Rotork's presence in the UK.

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