This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) This article contains content that is written like an advertisement. Please help improve it by removing promotional content and inappropriate external links, and by adding encyclopedic content written from a neutral point of view. (December 2013) (Learn how and when to remove this template message) This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: "Mentor Graphics" – news · newspapers · books · scholar · JSTOR (January 2008) (Learn how and when to remove this template message) This technology needs attention from an expert in electronics. The specific problem is: compound problems actively deflect non-specialist participation. WikiProject Electronics may be able to help recruit an expert. (September 2020) (Learn how and when to remove this template message)
Mentor Graphics
TypePrivate[1] (Independent Subsidiary)
IndustryEDA, Embedded Software
FounderTom Bruggere Edit this on Wikidata
HeadquartersWilsonville, Oregon,
United States
45°19′10″N 122°45′46″W / 45.31944°N 122.76278°W / 45.31944; -122.76278Coordinates: 45°19′10″N 122°45′46″W / 45.31944°N 122.76278°W / 45.31944; -122.76278
ProductsNucleus OS, Sourcery CodeBench, ModelSim/QuestaSim, Calibre, Veloce
RevenueIncrease$1.28B USD (2017)[2]
Increase$155 million USD (2017)[2]
Total assets
  • Increase US$ 1.745284 billion (2013) [3]
  • Increase US$ 1.550675 billion (2012) [4]
Number of employees
5,968 (2017)[5]
WebsiteSiemens EDA

Mentor Graphics is a US-based electronic design automation (EDA) multinational corporation for electrical engineering and electronics, headquartered in Wilsonville, Oregon. Founded in 1981, the company was acquired by Siemens in 2017. Since 2021, the former Mentor Graphics operates as a division at Siemens named Siemens EDA.

Mentor Graphics was noted for distributing products that assist in electronic design automation, simulation tools for analog mixed-signal design, VPN solutions, and fluid dynamics and heat transfer tools. The company leveraged Apollo Computer workstations to differentiate itself within the computer-aided engineering (CAE) market with its software and hardware.


Mentor Graphics was founded in 1981 by Tom Bruggere, Gerry Langeler and Dave Moffenbeier, all formerly of Tektronix. The first round of money, worth $1 million, came from Sutter Hill, Greylock, and Venrock Associates. The next round was $2 million from five venture capital firms, and in April 1983 a third round raised an additional $7 million.[citation needed]

Apollo Computer workstations were chosen as the initial hardware platform. Based in Chelmsford, Massachusetts, Apollo was less than a year old and had only announced itself to the public a few weeks prior to when the founders of Mentor Graphics began their initial meetings.

When Mentor entered the CAE market the company had two technical differentiators: the first was the software - Mentor, Valid, and Daisy each had software with different strengths and weaknesses. The second, was the hardware - Mentor ran all programs on the Apollo workstation, while Daisy and Valid each built their own hardware. By the late 1980s, all EDA companies abandoned proprietary hardware in favor of workstations manufactured by companies such as Apollo and Sun Microsystems.

After a frenzied development, the IDEA 1000 product was introduced at the 1982 Design Automation Conference, though in a suite and not on the floor.[6]



Year announced Company Business Value (USD) References
1995 Microtec Research Software development $130 million [7]
1999 VeriBest EDA subsidiary of Intergraph Corp. not disclosed [8][9]
2002 Accelerated Technology RTOS & embedded software not disclosed [10]
2002 Innoveda Printed circuit board & wire harness design $160 million [11]
2004 Project Technology Executable UML not disclosed [12]
2007 Sierra Design Automation Place and route $90 million [13]
2008 Flomerics Computational fluid dynamics $59.72 million [14]
2009 LogicVision Silicon manufacturing testing $13 million [15]
2010 Valor Computerized Systems PCB systems manufacturing $82 million [16]
2010 CodeSourcery GNU-based tools not disclosed [17]
2014 Nimbic Electromagnetic simulation not disclosed [18]
2014 Berkeley Design Automation AMS circuit verification not disclosed [19]
2015 Tanner EDA AMS & MEMS integrated circuits not disclosed [20]
2015 Calypto Design Systems High level synthesis not disclosed [21]



Mentor product development was located in the US, Taiwan, Egypt, Poland, Hungary, Japan, France, Canada, Pakistan, UK, Armenia, India and Russia.

Notable persons

James "Jim" Ready left Mentor in 1999 to form the embedded Linux company MontaVista. Neil Henderson joined Mentor Graphics in 2002 with the acquisition of Accelerated Technology Inc. Stephen Mellor, a leader in the UML space and co-originator of the Shlaer-Mellor design methodology, joined Mentor Graphics in 2004 following the acquisition of Project Technology.


Walden C. Rhines was the company's chief executive officer and president[29] following the acquisition by Siemens, until November 2018 when he became CEO Emeritus. Tony Hemmelgarn is now the president and CEO of Siemens Digital Industries Software, which includes the former Mentor product line.


This section may contain an excessive amount of intricate detail that may interest only a particular audience. Please help by spinning off or relocating any relevant information, and removing excessive detail that may be against Wikipedia's inclusion policy. (September 2020) (Learn how and when to remove this template message)
Entrance to company headquarters
Entrance to company headquarters

Mentor offered the following tools:

Electronic Design Automation

Embedded Systems

FPGA Synthesis

Electrical Systems, Cabling, and Harness



Mechanical Design

See also


  1. ^ a b "Siemens says Mentor will keep its name, business and HQ". 4 April 2017.
  2. ^ a b "Mentor Graphics Reports Fiscal Fourth Quarter Results" (PDF). Retrieved 2018-01-22.
  3. ^ "MENTOR GRAPHICS CORP 2013 Q3 Quarterly Report Form (10-Q)" (XBRL). United States Securities and Exchange Commission. December 4, 2013.
  4. ^ "MENTOR GRAPHICS CORP 2012 Annual Report Form (10-K)" (XBRL). United States Securities and Exchange Commission. March 15, 2013.
  5. ^ "MENTOR GRAPHICS CORP 2017 Form 10-K". Retrieved 2018-01-22.
  6. ^ The Mentor Graphics Story copyright 1988 Mentor Graphics Corporation
  7. ^ News, Bloomberg (1995-10-11). "COMPANY NEWS; MENTOR GRAPHICS TO ACQUIRE MICROTEC RESEARCH (Published 1995)". The New York Times. ISSN 0362-4331. Retrieved 2021-01-23. ((cite news)): |last= has generic name (help)
  8. ^ "Mentor Graphics acquires Intergraph's VeriBest subsidiary". Portland Business Journal. Retrieved 2019-03-22.
  9. ^ Ascierto, Jerry. "Mentor Buys Veribest". EDN. Retrieved 2019-03-22.
  10. ^ "Mentor acquires RTOS vendor Accelerated Technology". 7 March 2002.
  11. ^ "Squeeze is on, as Mentor, Cadence make acquisitions". EETimes. Retrieved 2019-03-22.
  12. ^ "Mentor acquires Project Technology". April 2004.
  13. ^ "Mentor buys Sierra Design for $90 million". Silicon Valley Business Journal. 2007-06-11. Retrieved 2021-11-10.
  14. ^ "Mentor Graphics Has Acquired Flomerics". 3 July 2008.
  15. ^ "Mentor now owns LogicVision". Portland Business Journal. August 18, 2009. Retrieved 2009-08-22.
  16. ^ "Mentor completes Valor acquisition". 18 March 2010.
  17. ^ "Mentor, RIM buy embedded software firms". 2 December 2010.
  18. ^ Corp, Mentor Graphics. "Mentor Graphics Acquires Nimbic, Inc". Retrieved 2021-01-23.
  19. ^ Graphics, Mentor. "Mentor Graphics Acquires Berkeley Design Automation to Advance Nanometer Analog/Mixed-Signal Verification". Retrieved 2021-01-23.
  20. ^ "Mentor Graphics Acquires Tanner EDA". Retrieved 2017-09-08.
  21. ^ Corporation, Mentor Graphics. "Mentor Graphics Acquires Calypto Design Systems". Retrieved 2021-01-23.
  22. ^ "Cadence Withdraws". Retrieved 2008-09-18.
  23. ^ "Icahn Bids $1.86 Billion for Mentor Graphics, Seeks Offers". 22 February 2011.
  24. ^ Machine Design Siemens Acquires Mentor Graphics for $4.5 Billion Retrieved November 14, 2016
  25. ^ "Siemens to expand its digital industrial leadership with acquisition of Mentor Graphics". Retrieved 2016-11-14.
  26. ^ Rogoway, Mike. "Siemens completes $4.5 billion purchase of Mentor Graphics". The Oregonian/OregonLive. Retrieved 30 March 2017.
  27. ^ "Mentor, a Siemens Business".
  28. ^ "Mentor Finally Becomes Siemens EDA from January 2021". 15 December 2020.
  29. ^ "Executive Team". Retrieved 2018-01-22.
  30. ^ "Mentor Embedded Linux Development Platform". Retrieved 2016-09-19.
  31. ^ "Mentor Graphics acquires Mecel Picea AUTOSAR Development Suite". Retrieved 2016-09-01.