Vishay

Founded in 1962 by Felix Zandman in the USA.

Started with film resistors and strain gauges.
From 1985: Vishay begins an acquisition strategy

According to the official Vishay brand overview, Vishay has acquired, among others, the following companies:

Passive components (resistors, capacitors, inductors)
Dale – Resistors

Beyschlag – Thin-film resistors

Draloric – Ceramic resistors

Sprague – Capacitors

Vitramon – Ceramic capacitors

BCcomponents – formerly Philips/Beyschlag passive components

Huntington Electric (Huntington, Milwaukee, Central, Mills Resistors)

Holy Stone Polytech – Ceramic capacitors

Birkelbach Capacitor Technology (2024)

Ametherm (2024) – Thermistors & Inrush Limiters

Semiconductors & Power Electronics
Siliconix – MOSFETs

Telefunken – Semiconductors

General Semiconductor – Rectifiers & Diodes (largest acquisition in 2001 for USD 869 million)

Infineon IR Product Lines – IR Discretes & Modules (from International Rectifier)

MaxPower Semiconductor (2022) – Power Devices

Nexperia Wafer Fab (2023) – Manufacturing Capabilities

Optoelectronics & Specialty Products
HiRel Systems – High-Reliability Components

MCB Industrie – Power Resistors

Capella Microsystems – Opto-ICs