NI Acquires Heinzinger Automotive GmbH EV Systems Business

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.

Emerson Acquires NI (National Instruments)

October 11, 2023

Industrial Services

Emerson has completed the acquisition of NI (National Instruments) for an equity value of $8.2 billion (approximately $60 per share). The deal brings NI's software-connected automated test and measurement systems into Emerson as a new Test & Measurement segment headquartered in Austin, Texas, enhancing Emerson's automation capabilities, software exposure and end-market diversification across semiconductor, transportation/EV and aerospace and defense markets.

Nitro Construction (Energy Services of America) Acquires Rigney Digital Systems

September 30, 2025

HVAC & Mechanical

Energy Services of America’s subsidiary Nitro Construction Services has completed the acquisition of Rigney Digital Systems, a regional HVAC control systems designer, installer and service provider based in Hurricane, West Virginia. The deal expands Nitro’s building-technology and HVAC controls capabilities while preserving Rigney’s brand, staff and client relationships to support future growth in building efficiency solutions.

Siemens Acquires Altair Engineering

March 26, 2025

Software

Siemens AG has completed the acquisition of Altair Engineering Inc. for an enterprise value of approximately USD 10 billion. The deal adds Altair's capabilities in mechanical and electromagnetic simulation, high-performance computing (HPC), data science and AI to Siemens' Xcelerator platform, strengthening Siemens' industrial software and digital twin offerings.

Aldinger Company Acquires Servo Innovations

September 17, 2024

Industrial Services

Aldinger Company has acquired Servo Innovations, a Michigan-based provider of calibration and repair services, to expand its calibration and metrology capabilities. The acquisition strengthens Aldinger's technical offerings and broadens service coverage for customers in automotive, aerospace and manufacturing markets.

Sensata Technologies Acquires Spear Power Systems

August 23, 2021

Energy

Sensata Technologies has agreed to acquire Spear Power Systems, a Grandview, Missouri-based developer and manufacturer of advanced energy storage systems, to advance Sensata's electrification strategy. The deal (financial terms undisclosed) brings Spear's team — including more than 40 engineers — and its battery management and energy storage capabilities into Sensata to expand its clean energy and OEM solutions.