As the use of steam power declined in the late 1800s, Cooper again shifted its focus, this time to gas engine technology.

In the last decade of the 20th century, Cooper underwent a period of portfolio rationalization, reducing its exposure to more cyclical industries such as automotive and petroleum.

Ultimately, Cooper emerged focused on the two business segments that remain in the portfolio today – Electrical Products Group and Energy and Safety Solutions.

The company also produces industrial and mobile wireless solutions, plus inductors and transformers for power quality in electronics applications.

[8] Bussmann's main industrial manufacturing facilities are located in the United States (Black Mountain and Goldsboro NC, Chicago IL, Ellisville MO, Boca Raton FL), in Mexico (Juarez and Mexico City), in UK (Workington and Burton-on-the-Wolds), in Hungary (Győr), Xi’an (China), India (Pondicherry), Costa Rica (San Jose), Brazil (Itu).

The companies products include cable assemblies, data connectors for military, home and commercial, lighting switches, outlets, receptacles, subsea wiring and communications ports.

The company provides products and services required to transform, protect, connect, and build out an electric power system backbone.

The two businesses offer industrial, commercial, and do-it-yourself customers a selection of over 30 leading brands, including Crescent, GearWrench, Armstrong, and Weller.

[10] In October 2012, Danaher Corporation and Cooper Industries sold the Apex Tool Group to Bain Capital for a fee of around $1.6 billion.