PLANO, TX, May 22, 2025 – Siemens Digital Industries Software has announced an agreement to acquire Excellicon, a company focused on timing constraints development, verification, and management for System-on-Chip (SoC) design. The integration of Excellicon’s tools into Siemens’ EDA portfolio is intended to strengthen both implementation and verification workflows. This move will help SoC designers address challenges related to power, performance, and area (PPA), accelerate design closure, and ensure accuracy in constraint validation. The acquisition also aims to address SoC workflow gaps and boost design productivity.
SoC design is evolving, however it grows complex each year. Managing timing constraints at every step is needed to meet power, performance, area, and delivery goals.
“Effective timing constraints management is crucial for the overall success of semiconductor system-on-chip designs,” said Mike Ellow, CEO, Siemens EDA, Siemens Digital Industries Software. “Excellicon’s constraint verification and management solution complements Siemens’ existing EDA offerings and expands our portfolio into key market segments in flows with the Questa, Tessent, Aprisa and PowerPro products.”
Excellicon’s products support timing constraint tasks including authoring, compiling, verification, validation, and management. Their multi-mode methods connect early design plans to actual chip layouts, helping teams find the best way to split up designs for floor planning and timing. By adding Excellicon’s timing constraint technologies, Siemens can improve both how it builds and checks chip designs.
“We are delighted to join Siemens and bring our knowledge and expertise in timing constraints management to the wider Siemens EDA community,” said Himanshu Bhatnagar, CEO, Excellicon. “Together, we’ll be able to provide better process coverage and enable our customers to deliver robust innovation to market more quickly and overcome the ever-growing complexity challenges facing the IC industry.”
Source: Siemens
About Siemens Digital Industries Software
Siemens Digital Industries Software provides integrated tools and services to support digital transformation across engineering and manufacturing workflows. Its portfolio includes solutions for product design, manufacturing optimization, and operational data management, with a focus on digital continuity and process efficiency. The company’s offerings – such as product lifecycle management (PLM) and manufacturing systems – are used across industries including automotive, aerospace, electronics, industrial equipment, and consumer goods. Siemens Digital Industries also supports both discrete and process manufacturing companies in implementing digital and sustainability strategies across the entire value chain. Its automation and software technologies enable improvements in product development, production planning, and operations. The Siemens Xcelerator platform serves as a scalable, open digital business framework for integrating tools and partner solutions. Headquartered in Plano, Texas, and operating as a business unit of Siemens AG, Siemens Digital Industries employs approximately 70,000 people worldwide and works with a broad partner ecosystem to help organizations advance as digitally enabled, sustainable enterprises.
About Siemens Digital Industries
Siemens Digital Industries (DI), a division of Siemens AG based in Nuremberg, Germany, provides software, automation systems, and digital services to support the full product and production lifecycle – from design and engineering to manufacturing and maintenance. With over 60 years of experience, DI serves key industries including automotive, aerospace, pharmaceuticals, energy, and electronics. Its technologies, such as the Xcelerator platform and SIMATIC automation systems, are developed to connect physical and digital operations, enabling data-driven manufacturing and improved operational efficiency. The division plays a central role in helping manufacturers implement Industry 4.0 strategies by integrating simulation, automation, and real-time data within scalable systems. DI supports both discrete and process manufacturing companies in advancing their digital and sustainability goals across the value chain. Its portfolio is structured to improve product development, production, and system optimization. Siemens Digital Industries reports annual revenues exceeding €18 billion and employs approximately 70,000 people worldwide.
About Siemens AG
Siemens AG, headquartered in Munich, Germany, is a global technology company with operations spanning industry, infrastructure, mobility, and healthcare. Established in 1847, the company offers a wide portfolio that includes industrial automation systems, digitalization platforms, energy-efficient technologies, and medical diagnostic equipment. Siemens plays a central role in the global market for industrial software and automation. The company also holds a majority stake in Siemens Healthineers, a publicly listed medical technology firm. In fiscal year 2024, which ended on September 30, Siemens reported revenue of €75.9 billion and net income of €9.0 billion. It employed approximately 312,000 people worldwide, including about 90,000 in Germany. Siemens applies industrial AI – including generative AI – across a range of applications, combining physical and digital technologies to support digital transformation and sustainability goals in manufacturing, urban infrastructure, and transportation systems.
About Excellicon
Excellicon is a privately held Electronic Design Automation (EDA) company headquartered in Laguna Hills, CA. Established in 2009, it specializes in software tools for timing constraints management, addressing challenges in System-on-Chip (SoC) design and verification workflows. Its product suite – including ConMan, ConCert, ConTree, and ConStruct – offers solutions for constraint generation, verification, and management, facilitating efficient timing closure in complex digital designs. Serving industries such as semiconductors, consumer electronics, and communications, Excellicon’s tools are utilized by major companies like LG Electronics, MaxLinear, and Renesas.