Amphenol vs ASML Holding: Founders, CEOs and History

Company facts

Founders

CEOs and their tenures

Timeline: Amphenol and ASML Holding side by side

1. 1932Amphenol

   Arthur J. Schmitt founds American Phenolic Corporation

   Arthur J. Schmitt incorporates American Phenolic Corporation in Chicago with a patented molded phenolic radio tube socket, establishing the company's foundation in electronic component manufacturing.

2. 1936Amphenol

   Introduction of industry-standard 75 series microphone connector and lock-in socket

   Amphenol introduces the 75 series uniform microphone connector and a lock-in socket for radio tubes, both becoming industry standards and attracting RCA as a major customer ordering 10,000 sockets daily.

3. 1942Amphenol

   Primary supplier of AN connectors for WWII Allied forces

   Amphenol becomes a critical defense supplier, with its 5015 AN circular connectors becoming standard equipment on military aircraft and communications gear; A-N connector shipments increase 13,572% from January 1941 to March 1943.

4. 1942Amphenol

   Official name change to Amphenol Electronics Corporation

   The company officially changes its name from American Phenolic Corporation to Amphenol Electronics Corporation, formalizing the shorthand name customers had used for years.

5. 1945Amphenol

   Initial public offering

   Amphenol raises $1.5 million from convertible debentures and sells 345,000 shares at $10 per share, giving the company a $4 million market capitalization and providing capital for post-war diversification.

6. 1951Amphenol

   Amphenol engineers develop the BNC connector

   Amphenol engineers Paul Neill and Carl Concelman develop the bayonet coupled BNC coaxial connector, which becomes a standard interface in radio frequency and test equipment applications.

7. 1957Amphenol

   NYSE listing

   Amphenol Electronics Corporation lists on the New York Stock Exchange, marking its transition to a major public industrial company.

8. 1958Amphenol

   Merger with George W. Borg Corporation

   Amphenol completes its largest transaction to date, merging with the George W. Borg Corporation, a maker of automobile clocks, electronic instruments and deep pile fabrics, and is renamed Amphenol-Borg Electronics Corporation.

9. 1967Amphenol

   Acquisition by Bunker-Ramo Corporation

   Bunker-Ramo Corporation acquires Amphenol, which begins operating as a subsidiary and passes through successive corporate owners for the next 24 years.

10. 1981Amphenol

    Allied Corporation buys Bunker-Ramo for $358 million

    Allied Corporation acquires Bunker-Ramo for $358 million, including the Amphenol division, making Amphenol part of a larger industrial conglomerate.

11. 1984ASML Holding

    Founded as ASM Lithography in Eindhoven

    ASM Lithography starts operations on April 1, 1984 as a joint venture between Philips and ASM International, with the mandate to commercialize the PAS 2000 wafer stepper developed inside Philips.

12. 1986ASML Holding

    PAS 2500 stepper and the Carl Zeiss partnership

    ASML brings the PAS 2500 stepper to market with a new wafer alignment system developed by first chief scientist Steef Wittekoek, and establishes the optics partnership with Carl Zeiss that still supplies every ASML lithography system.

13. 1987Amphenol

    LPL Investment leveraged buyout for $430 million

    LPL Investment buys Amphenol from Allied in a leveraged buyout valued at $430 million in cash, and the decentralized management style that defines the modern company takes hold. Martin H. Loeffler becomes president in the same year.

14. 1988ASML Holding

    ASM International withdraws and Philips funds a rescue

    With few customers and heavy cash consumption, ASM International decides to stop funding the joint venture while Philips launches a company-wide cost-cutting program.

15. 1991Amphenol

    Second IPO on NYSE under ticker APH

    Amphenol returns to public markets with a second initial public offering on the New York Stock Exchange under ticker APH, beginning the modern era of sustained growth and shareholder returns.

16. 1991ASML Holding

    PAS 5500 platform turns the company around

    ASML launches the PAS 5500 platform, whose productivity and resolution win the first large orders from Intel and IBM under chief executive Willem Maris and take the company to profitability. PAS 5500 systems are still running in customer fabs decades later.

17. 1995ASML Holding

    IPO in Amsterdam and on Nasdaq

    ASML becomes a fully independent public company with a dual listing on the Amsterdam Stock Exchange and Nasdaq. Philips sells half of its shares at the IPO and divests the remainder over the following years.

18. 2001ASML Holding

    TWINSCAN platform launched and Silicon Valley Group acquired

    ASML introduces the TWINSCAN dual-stage architecture, which exposes one wafer while the next is measured and aligned, lifting throughput and overlay accuracy above competing systems.

19. 2003ASML Holding

    First immersion lithography system

    The TWINSCAN AT:1150i debuts as ASML's first immersion machine, projecting 193 nanometer light through a layer of ultrapure water between the lens and the wafer to raise resolution.

20. 2005Amphenol

    Acquisition of Teradyne connector business for $390 million

    Amphenol acquires Teradyne's connection systems business for $390 million in October 2005, expanding its presence in high speed data and backplane connectors for the growing IT datacom market.

21. 2010ASML Holding

    First EUV prototype shipped

    ASML ships the TWINSCAN NXE:3100, its first extreme ultraviolet lithography tool, to the research facility of an Asian chipmaker.

22. 2012ASML Holding

    Customer Co-Investment Program with Intel, TSMC and Samsung

    Intel, TSMC and Samsung acquire newly issued ASML shares equal to an aggregate 23 percent minority stake for ~$4.35 billion (3.85 billion euros) in cash, and separately commit ~$1.56 billion (1.38 billion euros) of R&D funding over five years dedicated to EUV…

23. 2013ASML Holding

    Cymer acquisition completed and second-generation EUV shipped

    ASML completes the acquisition of Cymer, the San Diego supplier of the light sources used in its lithography systems, in a cash-and-stock deal valued at ~$2.2 billion (1.95 billion euros) when it was agreed in October 2012.

24. 2016Amphenol

    Acquisition of FCI Asia for $1.275 billion

    Amphenol acquires FCI Asia from affiliates of Bain Capital for $1.275 billion in January 2016, strengthening its global connector footprint and adding high speed backplane and board-to-board capability.

25. 2017ASML Holding

    EUV enters high-volume manufacturing

    ASML begins shipping the production-ready TWINSCAN NXE:3400B after customers started ordering the NXE:3400 generation in batches in 2016, roughly two decades after EUV research began.

26. 2019ASML Holding

    Dutch government stops EUV exports to China

    The Netherlands does not renew ASML's export licence for EUV systems to China, the start of a widening export control regime.

27. 2021Amphenol

    Acquisition of MTS Systems Corporation for $1.7 billion

    Amphenol acquires MTS Systems for $1.7 billion in April 2021, adding advanced sensor capability that deepens its position in industrial and automotive sensing.

28. 2023ASML Holding

    First High-NA EUV system shipped

    ASML ships the first of its next-generation EUV systems with a numerical aperture of 0.55, the TWINSCAN EXE:5000, to Intel in Hillsboro, Oregon.

29. 2024Amphenol

    Acquisition of Carlisle Interconnect Technologies for about $2.0 billion

    Amphenol completes the purchase of Carlisle Interconnect Technologies from Carlisle Companies in May 2024 for about $2.0 billion, expanding aerospace, defense and medical harsh environment interconnect capability.

30. 2024ASML Holding

    Christophe Fouquet becomes chief executive

    Peter Wennink and Martin van den Brink step down as presidents of ASML on April 24, 2024 and Christophe Fouquet becomes president, chief executive officer and chair of the Board of Management.

31. 2025Amphenol

    Completion of the $2.1 billion CommScope outdoor wireless and DAS purchase

    Amphenol completes the acquisition of CommScope's Outdoor Wireless Networks and Distributed Antenna Systems businesses, including Andrew, for $2.1 billion in cash. The businesses had about $1.2 billion of 2024 sales.

32. 2025Amphenol

    Record fiscal 2025 revenue of $23.09 billion, up 52%

    Amphenol reports record full year 2025 net sales of $23.09 billion, up 52% year over year and 38% organically, with a 25.4% GAAP operating margin, $4.4 billion of free cash flow and Communications Solutions sales up 91% to about $12.1 billion.

33. 2025ASML Holding

    Record year, first EXE:5200B and Mistral AI investment

    ASML reports total net sales of ~$37 billion (32.7 billion euros), up 15.6 percent, net income of ~$10.8 billion (9.6 billion euros), a gross margin of 52.8 percent and 535 systems sold, and closes the year with a backlog of ~$43.8 billion (38.8 billion euros)…

34. 2026Amphenol

    Completion of the $10.5 billion CommScope CCS acquisition

    Amphenol closes its largest acquisition, buying CommScope's Connectivity and Cable Solutions business for $10.5 billion on January 12, 2026. Amphenol also acquired the CommScope name and expects the business to generate about $4.1 billion of sales in 2026.

35. 2026Amphenol

    Norwitt named chairman as Loeffler retires from the board

    Amphenol announces on February 4, 2026 that chief executive R. Adam Norwitt will also become chairman of the board at the May 2026 annual meeting, as Martin H. Loeffler retires from the board after more than five decades with the company.

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