Silicon Labs Management

Tyson Tuttle

President and Chief Executive Officer

Tyson Tuttle serves as CEO at Silicon Labs, a leading provider of silicon, software and solutions for a smarter, more connected world. Under Tyson’s leadership, Silicon Labs has received recognition for its strong company culture and vision to successfully develop technologies which improve lives and transform industries. He spearheaded the company’s focus on the Internet of Things (IoT), leveraging its wireless and integration expertise to become one of the industry’s most respected IoT market leaders. Tyson joined Silicon Labs in 1997 and has held a variety of roles in design engineering and product management including CTO and COO before being named CEO in 2012. Tyson previously worked at Broadcom and Cirrus Logic, received the B.S. degree from the Johns Hopkins University and the M.S. degree from UCLA, both in Electrical Engineering, and holds more than 70 patents in RF and mixed-signal IC design. He currently serves on the boards of the Global Semiconductor Alliance, the Semiconductor Industry Association, the Johns Hopkins University Whiting School of Engineering, and KLRU-TV, home of PBS and Austin City Limits. 


John Hollister

Senior Vice President and Chief Financial Officer

John Hollister serves as Chief Financial Officer and Senior Vice President of Silicon Labs, helping to lead the company’s growth in the broad-based semiconductor and Internet of Things (IoT) markets. John joined Silicon Labs in 2004 and held a variety of key financial management positions until 2007 when he became Managing Director of Silicon Labs’ Asia Operations, based in Singapore, where he was responsible for global supply chain management during a period of rapid growth overseas. In 2009, he advanced to Vice President, Manufacturing and Asia Operations. In 2012 he returned to Austin as Vice President of Business Development, where he was instrumental in executing the company's IoT acquisition strategy, and was subsequently named CFO in 2013. Prior to joining Silicon Labs, John served as Vice President of Finance at Cicada Semiconductor and held various finance positions at Cirrus Logic, Veritas DGC, 3-D Geophysical and PricewaterhouseCoopers LLP. John is a Certified Public Accountant and holds a master’s degree in professional accounting and a bachelor’s degree in business administration from The University of Texas at Austin. He serves as Chairman of the Board for the Central Texas Chapter of the American Red Cross.

Brandon Tolany

Senior Vice President, Worldwide Sales and Marketing

Brandon Tolany has global responsibility for Silicon Labs’ sales, marketing and distribution channels. In this role he is responsible for delivering smart, connected, energy-friendly solutions to our customers and distribution partners worldwide. Prior to joining Silicon Labs, Brandon spent the previous 12 years at Freescale Semiconductor in roles of increasing responsibility culminating as Senior Vice President, Chief Sales and Marketing Officer. During his tenure at Freescale, Brandon progressed in a range of leadership positions including Vice President of Global Marketing for Microcontrollers and Director of Sales and Field Application Engineering for Freescale’s Americas West Region. Brandon started his career at Freescale in 2004 as a marketing manager for the i.MX applications processor product line. Prior to joining Freescale, Brandon held various marketing and product management positions at Luminent and Mitsubishi Electric. Brandon holds a bachelor's degree in communications from the University of Texas at Austin. Brandon also serves as a board member for The Rosedale Foundation.

Alessandro Piovaccari

Senior Vice President and Chief Technology Officer

As Silicon Labs’ Chief Technology Officer, Alessandro Piovaccari is responsible for the company’s product and technology research and development. Alessandro joined Silicon Labs in 2003 to design the company’s single-chip FM radio products, which have surpassed 1.5 billion device shipments. He co-architected Silicon Labs’ single-chip TV tuner IC, used by nine of the world’s top ten TV makers, with more than 70 percent market share and 1 billion unit shipped. Previously, Alessandro worked as a research scientist at Tanner Research, joining the company in 1997 to develop CMOS neuro-inspired image processors. From 1998 to 2003, he was a member of the design services team at Cadence Design Systems, focusing on CMOS RFICs and high-speed SerDes IP development. Alessandro holds 38 patents and is a Senior Member of IEEE, a Full Member of AES, and a Member of the Forbes Technology Council. Alessandro received Laurea and PhD degrees in electronic engineering and computer science from the University of Bologna in Italy and a Post-Master's Certificate with Honors in electrical engineering from Johns Hopkins University. He also serves as a board member for the Skillpoint Alliance, a member of the advisory council of UTeach Natural Sciences at The University of Texas at Austin, College of Natural Sciences, an advisor for the Center for Leadership Education, G. W. Whiting School at John’s Hopkins University, and he is an IEEE CICC Conference steering commmittee member.

Daniel Cooley

Senior Vice President and Chief Strategy Officer

Daniel Cooley, Senior Vice President and Chief Strategy Officer, leads Silicon Labs’ overall corporate strategy, M&A and investments, emerging markets, and security. He previously led Silicon Labs’ IoT business, most recently as SVP and General Manager. Under his leadership, the company has built an industry-leading portfolio of secure connectivity solutions, and the IoT business has grown to more than half of total revenue. Daniel joined Silicon Labs in 2005 as a chip design engineer developing broadcast products such as AM/FM radios and short-range wireless devices. Over the years, Daniel has served in various senior management, engineering and product management roles at the company’s Shenzhen, Singapore, Oslo and Austin sites. He has an MS in electrical engineering from Stanford University and a BS in electrical engineering from The University of Texas at Austin and holds four patents in radio and low-power technology. Daniel also serves on the board of directors for the Thinkery, a children’s museum in Austin, Texas, dedicated to science, technology, engineering and math (STEM) education.

Matt Johnson

Senior Vice President and General Manager, IoT Products

Matt Johnson serves as Senior Vice President and General Manager of Silicon Labs’ IoT products, leading the company’s IoT business. He is responsible for the development and market success of multiprotocol wireless SoCs and modules, microcontrollers, development tools, and wireless software stacks including Zigbee, Thread, Z-Wave, Wi-Fi, Bluetooth and proprietary protocols. Prior to joining Silicon Labs, he served SVP and General Manager of automotive processing products and software development at NXP Semiconductors. Previously, he served as SVP and General Manager of mobile solutions at Fairchild Semiconductor. Matt holds a BS in electrical engineering technology from the University of Maine and has completed executive programs at Harvard Business School and Stanford University.

Mark Thompson

Senior Vice President and General Manager, Infrastructure

Mark Thompson serves as Senior Vice President and General Manager of Silicon Labs’ Infrastructure and Automotive products, directing the strategy for a large portfolio of products including timing, isolation, automotive radio, broadcast audio and video, PoE and other analog products. Mark joined Silicon Labs in 2000 as a product manager for the company’s silicon direct access arrangement (DAA) product family and has served in a variety of roles in multiple business units including marketing director, general manager and vice president. Prior to Silicon Labs, Mark held various engineering and marketing positions at BMC Software and Motorola's semiconductor products sector. Mark holds an MBA, an MS in electrical and computer engineering, and a BS in electrical engineering from The University of Texas at Austin, and holds four patents in microcontroller and wireless technologies. He also serves as a community board member for Caritas of Austin. 

Sandeep Kumar

Senior Vice President, Worldwide Operations

Dr. Sandeep Kumar joined Silicon Labs in 2006 and is responsible for worldwide operations, driving the company’s technology strategy and supplier choices. His operations team includes the manufacturing teams, the CAD organization, process and package engineering, product and test engineering, quality assurance, failure analysis, as well as the prototype production and reliability test labs. Prior to joining Silicon Labs, Sandeep managed global test engineering teams and was responsible for worldwide product and test engineering for the storage business at Agere Systems, Lucent technologies and AT&T Bell Labs. As a member of the Bell Labs technical staff, Sandeep also was a member of the group that designed ISDN U-interface chips, Speaker Phone Codec and Sigma-Delta A/D converters. Sandeep has a Bachelor degree in Electrical Engineering from the Indian Institute of Technology in Bombay, India, a Master of Science degree in Electrical Engineering from the University of Evansville in Indiana, and a Ph.D. in Electrical Engineering from Lehigh University. Sandeep has served on the board of the Ronald McDonald House Charities of Central Texas and currently serves on their development committee. He serves on the Electrical and Computer Engineering Department’s Industry Advisory Council for Southern Illinois University in Carbondale, Illinois.

Lori Knowlton

Senior Vice President and Chief People Officer

Lori Knowlton is Senior Vice President and Chief People Officer at Silicon Labs and is responsible for the company’s overall talent strategy, total rewards, employee communications, community relations, talent acquisition, engagement and culture. Previously, Lori served as chief people officer for and was a member of their leadership team from early stage growth through a highly successful IPO and, ultimately, through acquisition by Expedia. Prior to HomeAway, Lori held roles in technology companies including Progress Software, Interliant, C-bridge Internet Solutions and the Monitor Company. She has led the people and culture aspects in the mergers, acquisitions and integrations of more than 50 companies. Lori holds an Artis Baccalaureate in English literature from Bowdoin College in Brunswick, Maine and serves on the board of the Entrepreneur’s Foundation of Central Texas.

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