Emerson Acquires NI (National Instruments) for $8.2 Billion

Emerson Acquires Open Systems International (OSI Inc.) for $1.6B

August 27, 2020

Software

Emerson agreed to acquire Open Systems International, Inc. (OSI Inc.) for $1.6 billion in an all-cash transaction to expand its software capabilities for the power industry. The deal brings OSI’s grid management and operations technology software and associated engineering services into Emerson’s automation and software portfolio to accelerate digitization and renewable integration across utilities.

Emerson Acquires Remaining Shares of AspenTech for $7.2 Billion

February 2, 2025

Software

Emerson will acquire all remaining outstanding shares of AspenTech that it does not already own via an all-cash tender offer at $265.00 per share, followed by a merger to obtain the rest of the shares. The minority stake being acquired is valued at $7.2 billion and the deal is expected to close in the first half of 2025, subject to customary conditions.

NI (National Instruments) Acquires Kratzer Automation AG Test Systems Business

May 5, 2022

Engineering Services

NI (National Instruments) has closed the acquisition of the test systems business of Kratzer Automation AG. The deal expands NI's electric-vehicle (EV) testing capabilities by combining NI's flexible EV hardware and software platform with Kratzer's application-specific EV software and integration expertise, strengthening NI's reach with automotive OEMs.

Siemens Industry Software Acquires Altair Engineering

March 26, 2025

AI & Machine Learning

Siemens has signed an agreement to acquire Altair Engineering Inc. for $113 per share in cash, valuing the deal at about USD 10 billion. The transaction will combine Altair’s simulation, HPC, data science and AI capabilities with Siemens Xcelerator to create a more comprehensive AI-powered industrial software and digital twin portfolio.

NI Acquires Heinzinger Automotive GmbH EV Systems Business

October 19, 2021

Manufacturing

NI (National Instruments) has completed the purchase of Heinzinger Automotive GmbH, the EV Systems business of Rosenheim-based Heinzinger electronic GmbH. The acquisition expands NI's electrification, battery test and sustainable energy capabilities, combining NI's EV test platform with Heinzinger's high-voltage/high-current power systems to better serve automotive and EV customers.

Emerson and AspenTech Combine to Create New AspenTech

May 16, 2022

Software

Emerson entered into a definitive agreement to contribute its industrial software businesses—OSI Inc. and its Geological Simulation Software business—to AspenTech to form a new, diversified industrial software company (“new AspenTech”). Emerson would receive a 55% stake in new AspenTech, contributing $6.0 billion in cash, while AspenTech shareholders receive cash and shares in the combined company; the transaction was later successfully closed.