Siemens Digital Industries Software
|Type||Strategic business unit|
|Founded||1963, Torrance, California|
(as United Computing)
2007, Plano, Texas
(as Siemens PLM Software)
|Tony Hemmelgarn, Bob Jones, Bernd Haetzel|
|Products||PLM software and services — Teamcenter, NX, Simcenter, Tecnomatix, Velocity Series, COMOS; EDA software and services (formerly Mentor Graphics)|
Number of employees
Electronic Data Systems
Siemens Digital Industries Software (formerly UGS and then Siemens PLM Software) is an American computer software company specializing in 3D & 2D Product Lifecycle Management (PLM) software. The company is a business unit of Siemens, operates under the legal name of Siemens Industry Software Inc, and is headquartered in Plano, Texas.
Evolution of Siemens PLM from UGS: 1963–2007
The first commercial product developed by what is now known as Siemens PLM Software was called UNIAPT, released in 1969 by a software company then called United Computing. UNIAPT was one of the world's first end-user CAM products. United Computing was founded in 1963 above a hair salon in Torrance, California, and went on to purchase the Automated Drafting and Machining (ADAM) software code from MCS in 1973. The code became a foundation for a product called UNI-GRAPHICS, later sold commercially in 1975 as Unigraphics.
The following year, United Computing was acquired by the aerospace company McDonnell Douglas (now part of Boeing), who created new CAD/CAM divisions, naming one the Unigraphics Group. Finally, in 1980, Unigraphics was released, marking the group's first true 3D modeling hardware and software offering. Already home to McDonnell Douglas, the Unigraphics Group grew in St. Louis, Missouri, which became the new headquarters.
In 1991, the McDonnell Douglas Systems Integration groups, including Unigraphics, were acquired by EDS (then a part of General Motors Corp., later part of HP Enterprise Services, now part of DXC Technology). EDS branded the acquired business as EDS Unigraphics. Eventually, in 1997 EDS set up its Unigraphics division as a wholly owned subsidiary called Unigraphics Solutions. EDS took Unigraphics Solutions public while continuing to own majority controlling shares in Unigraphics. During this time, Unigraphics acquired a few companies itself including Engineering Animation, Inc., the former Ames, Iowa-based visualization company.
In 1999 the company acquired Applicon, a long-term player in the EDA (Electronic Design Automation) field.
Unigraphics changed its name to UGS Corporation in 2001. Also that year, EDS repurchased all outstanding UGS stock, and acquired a UGS competitor, SDRC. In 2003 UGS also received a perpetual, royalty-free license to the MSC Nastran source code. UGS, SDRC, and Nastran were merged into a single Line of Business (LOB) named EDS PLM Solutions.
In 2004, EDS sold its EDS PLM Solutions business to the private equity group of Bain Capital, Silver Lake Partners, and Warburg Pincus. The company resumed operating under the UGS name following the private equity sale.
On January 24, 2007 the German electronics giant Siemens AG announced that they would acquire UGS for $3.5 billion. Helmuth Ludwig was appointed president and worked with the management team on creating a long-term strategic direction.
Siemens PLM: 2007–2019
The 2007 acquisition of UGS laid the foundation for the Strategic business unit of Siemens Industry Automation division - Siemens PLM Software. The entire operations of UGS were amalgamated into Siemens Automation & Drives group as Siemens PLM Software.
In October 2008, to expand its portfolio, Siemens acquired Schwelm based 'Innotec GmbH' - an international vendor of digital engineering software and services for the process industry, and known for its COMOS platform.
On November 9, 2011, Siemens announced the acquisition of 'Vistagy, Inc.' - a Massachusetts-based supplier of specialized engineering software and services with emphasis on designing and manufacturing structures made of advanced composite materials.
The Siemens Industry Automation Division has acquired the software companies UGS (USA, 2007), Innotec (Germany, 2008), Elan Software Systems (France, 2009), Active Tecnologia em Sistemas de Automação (Brazil, 2011), Vistagy (USA, 2011), IBS AG (Germany, 2012), Perfect Costing Solutions GmbH (Germany, 2012), VRcontext International S.A. (Belgium, 2012), and LMS International (Belgium, 2012).
In December 2013, in order to enhance its portfolio in the field of PLM-ERP integration and provide platform for integration with enterprise resource planning systems (such as SAP, Oracle and other enterprise applications such as MES, CRM and SCM), Siemens Industry Software Gmbh & Co. KG acquired Munich based TESIS PLMware Gmbh, in the field of PLM integration software and services. 
In October 2016, Tony Hemmelgarn became president and CEO (his previous position was executive vice president for global sales, marketing and service delivery). Previous president and CEO, Chuck Grindstaff, became Executive Chairman (earlier Grindstaff was appointed CEO of Siemens PLM in 2010, when he succeeded the former leader, Tony Affuso).
In November 2016, Siemens announced plans to acquire EDA company Mentor Graphics for $4.5 billion to incorporate electronics integrated circuit and systems design, simulation, and manufacturing solutions[buzzword] into their portfolio. Mentor Graphics became styled as "Mentor, a Siemens Business".
Siemens Digital Industries Software: 2019-current
Announced on September 4, 2019, it was announced at the Siemens Media & Analyst Conference that the formal name of the company changed from Siemens PLM Software to Siemens Digital Industries Software.
In January 2021, the legal merger of Mentor Graphics with Siemens was completed - merging into the Siemens Industry Software Inc legal entity. Mentor Graphics' name was changed to Siemens EDA, a division of Siemens Digital Industries Software.
Siemens Digital Industries Software products include the former Siemens PLM product lines  which include NX, a CAD/CAM/CAE commercial software suite, Teamcenter, an integrated set of PLM and collaboration (cPD) tools, Tecnomatix, a manufacturing and factory planning suite and Velocity Series, an application bundle focused at the mid-market that includes Solid Edge.
The company's portfolio also contained NX I-deas, NX Nastran, Solid Edge, Imageware, Tecnomatix, Femap, D-Cubed, JT, PLM Vis, PLM XML, Simcenter 3D, Simcenter Amesim, Simcenter STAR-CCM+ and Parasolid.
With the acquisition of Mentor Graphics (now Siemens EDA), the product portfolio expanded significantly to include all of the Mentor product lines which includes:
- the Calibre product line for IC Physical Verification and Design for Manufacturing
- the Tessent product line for Silicon Test and Yield Analysis
- the Veloce product line for Hardware Assisted Verification
- the Questa product line for digital simulation and verification and formal verification
- Analog and AMS solutions including AFS, AFS Symphony, Solido, and Eldo
- PCB layout and design tools such as PADS, Xpedition, HyperLynx and Valor NPI
- as well as solutions for IC design and layout, High Level Synthesis, Power Analysis, IC Place & Route, and other areas
- "Unigraphics in the 60's". PLM World. Archived from the original on 2010-06-16.
- "A Critical History of Computer Graphics and Animation". Archived from the original on 2011-07-16. Retrieved 2012-07-14.
- Wayne Carlson (2003). "A Critical History of Computer Graphics and Animation, Section 10: CAD/CAM/CADD/CAE". The Ohio State University. Archived from the original on July 5, 2004. Retrieved January 9, 2006.
- Siemens PLM Software (2009). "About Us: Facts & Philosophy". Retrieved June 2, 2009.
- "See GM, IBM in CAD/CAM fight; after Unigraphics deal". Electronic News. 1991.
- "EDS Forms CAD Powerhouse With SDRC, UGS". Managing Automation. Archived from the original on 2011-07-14. Retrieved 2012-07-14.
- "Bain Capital, Silver Lake Partners and Warburg Pincus Private Equity Group to Acquire UGS PLM Solutions from EDS for $2.05 Billion in Cash" (Press release). Silverlake.
- "Deals: UGS To Acquire Tecnomatix For $228 Million". The New York Times. January 5, 2005.
- "Siemens Buys UGS for $3.5B". Red Herring. Archived from the original on 2011-07-15.
- "Siemens to acquire UGS Corp" (Press release). Siemens AG. 2007-01-25. Retrieved 2009-06-10.
- "Siemens acquires innotec". 22 October 2008. Retrieved 14 July 2012.
- "Siemens Drives Forward Its Expansion in Industrial Software: Siemens to Acquire U.S. Company Vistagy, Inc". Bloomberg News. 9 November 2011. Retrieved 14 July 2012.
- "Siemens to acquire TESIS PLMware, further enhancing its industry software portfolio".
- Software, Siemens Product Lifecycle Management. "Siemens to Acquire Simulation Software Supplier CD-adapco: Siemens PLM Software". www.plm.automation.siemens.com. Retrieved 2017-03-22.
- "CD-adapco is now part of the Siemens PLM family | MDX". mdx2.plm.automation.siemens.com. Retrieved 2017-03-22.
- "Siemens PLM Appoints New CEO: Decisive and Results-Oriented".
- "Siemens to expand its digital industrial leadership with acquisition of Mentor Graphics".
- "Mentor, a Siemens Business".
- "Siemens closes Mendix acquisition, extending industry leading digital innovation platform".
- "Welcome to Siemens Digital Industries Software".
- "Products for Digital Innovation". Siemens Digital Industries Software.