Granite River Labs Overview

As CEO, Johnson’s main goal is to help customers navigate a world where connectivity solutions continue to get faster, proliferate, and get harder to implement. Johnson was previously VP & GM of the USB and Networking Business Units at SMSC, a fabless semiconductor company focused on connectivity solutions. Through his experiences developing, adopting and selling connectivity technologies, Johnson takes a very customer centric view on GRL’s service model and offerings. He holds a BS and MS in EECS from MIT, and MBA from Harvard Business School.

Quintin runs operations at GRL and focuses on creating superior customer experiences through extraordinary levels of customer service. From 2015 to 2023, Quintin served on the Board of Directors of the HDMI Forum, whose purpose is to guide the future direction of HDMI technology, develop new versions of the HDMI Specification, and foster broader global adoption and interoperability. Prior to co-founding GRL, Quintin held leadership positions with Deloitte Consulting on three continents and has extensive experience in operations, finance, and general management. He earned a BS with highest honors from the University of Illinois at Urbana-Champaign, and a MBA from Harvard Business School.

Vamshi brings to GRL a strong track record of success with over 20 years’ experience in the semiconductor industry. Prior to GRL, Vamshi was the head of Symmetricom’s Global Embedded Solutions Division responsible for global marketing, product management, technical management and business creation; and held leadership positions with Applied Micro, MosChip Semiconductor, and Standard Microsystems (SMSC). Vamshi holds a B.E. in Instrumentation Engineering and an MBA.

Holger brings over 25 years of experience in TIC. Prior to GRL, Holger has held various roles with TÜV Rheinland (TÜVR), a global leader in the Testing, Inspection, Certification (TIC) industry. He oversaw tremendous growth and margin expansion through various organic initiatives and strategic acquisitions. Holger has developed and implemented global processes for project management utilizing excellent quality management. Solid multi-disciplinary background with years of experience from data privacy to sales and HR. He has a proven track record of turning around businesses, achieving double digit growth, straddling short term results and long-term strategy execution.

Responsible for delivering state-of-the-art test solution products and driving the development of new product offerings. In addition to managing the Solution Business Unit’s P&L, he is also in charge of implementing business strategy and guiding investments, which include M&A activity. Mr. Sun holds an M.S. in Mechanical and Electronic Engineering from Shanghai Jiao Tong University and an M.B.A. Concentration in Finance & Entrepreneurship from The University of Chicago, Booth School of Business.

Alan manages all aspects needed for Greater China business growth in corporate regional business strategy. Solid technical background combined with 15 years of multi-disciplinary experience, from business vision to hands-on product development in electrical and electronic testing and instrumentation industry. Prior to GRL, Alan worked in Agilent and Rigol as Channel sales, Business development manager, Regional sales manager. He holds an MS in Electrophysics from National Chiao Tung University.

Jennifer oversees all facets of business growth in Taiwan, driving corporate regional strategy. Drawing on her extensive experience in the Testing, Inspection, and Certification (TIC) industry, she brings invaluable expertise and a deep understanding of the field to her role. Prior to joining GRL, Jennifer spent 12 years in TÜV Rheinland, where she held diverse roles including Executive Vice President of the Asia-Pacific region and Managing Director for TÜV Rheinland Taiwan. She has an MBA from National Chengchi University.

As Managing Director of GRL China, John oversees operational activities and drives business development strategies within the region. With a robust background spanning more than 25 years in the Testing, Inspection, Certification (TIC) industry, John brings extensive expertise to his role. Prior to joining GRL, he held diverse positions including technical manager, sales manager, and General Manager at TÜV Rheinland (TÜV RH), TUV SUD, and Bureau Veritas. John's educational qualifications include an MBA from The Australian National University.

Cyan is currently serving as the Technical Director for Automotive Connectivity in the Asia-Pacific region. She brings 16 years of experience in SI/PI Validation, specializing in TBT, USB, PCIe, SATA, and DisplayPort/DisplayHDR certification programs. She is also a USB-IF Certified Engineer. Previously, she led GRL Shanghai, overseeing daily operations, strategic planning, budget management, and business development. She was also responsible for staff leadership, vendor relations, and maintaining high customer service standards.

Kristof is responsible for leading GRL's expansion across Europe and focuses on creating superior customer experiences for customers across the region. He has extensive experience in high-speed serial data and charging technologies. Prior to joining GRL, Kristof spent over 17 years at Eurofins Digital Testing where he expanded the company’s digital test services portfolio and customer base. Kristof earned a Bachelor of Electronics in Hardware Design and a Master of Electronics in Information Technology.

Jee-Woong is the General Manager for Granite River Labs Korea, as well as Vice President for Regional Large Accounts. In addition to launching GRL’s first point of presence internationally important Korean market, he is responsible for growing the organization’s business across a broad range of sectors, including semiconductor, automotive and consumer electronics. Prior to GRL, Jee-Woong was Sales Vice President, APAC for TUV Rheinland Korea. During his 15-year tenure at TUV, he ran the organization’s business in Korea and was responsible for sales in 9 APAC locations. Jee-Wong has worked for some of the biggest names in the tech sector, such as Motorola Networks Inc., where he was the Key Account Manager/PM for Korea Telecom PowerTel and Network infrastructure equipment sales, and Maxon Telecom. He holds a bachelor’s degree in Industrial Engineering from Kyung-Hee University.

Ken oversees the management of GRL Japan’s operations as General Manager. He has spent over 11 years at Arm Japan as the Regional Segment Marketing Director covering Automotives, Embedded, Smartphone, Gaming, and Digital Consumer product segments. Working deeply with major Japanese OEMs, particularly in digital consumers, game consoles, and LSI companies, Ken has comprehensive knowledge in Machine Learning, GPU, and CPU-based system architecture for digital consumer products.

Sanjay is the General Manager at GRL Services India. With over a decade of experience in cybersecurity, risk management, and regulatory compliance, Sanjay has played a pivotal role in shaping GRL India’s service portfolio since joining the organization three years ago.

Prior to GRL, he held leadership positions at globally recognized firms including Standard Chartered Bank, IBM, and Capgemini. During this time, he led initiatives in cybersecurity strategy and developed comprehensive testing platforms to secure Telecom networks, IoT ecosystems, enterprise applications, and web services.

At GRL, Sanjay is responsible for expanding the company’s capabilities across multiple domains. His current focus includes strengthening security evaluation and testing of telecom products and consumer IoT devices. He also oversees functionality testing of USB and MFi (Made for iPhone/iPad) accessories, ensuring compliance with industry standards. Additionally, Sanjay leads efforts in interface protocol testing aligned with TEC (Telecommunication Engineering Centre) and global specifications, helping OEMs and solution providers ensure product reliability and regulatory readiness.

Sanjay holds a B.Tech in Electronics & Communication and is certified in CISA, CISM, CEH, ISO/IEC 17025, and ISO/IEC 27001.

Rajani leads GRL India's Solutions business, holding full P&L responsibility and overseeing all operational facets, including R&D, Manufacturing, and Business Growth. With over 20 years of experience, primarily in the semiconductor industry, Rajani's expertise spans circuit design, product management, business development, and P&L management. He also brings a strong technical background in wired (USB) and wireless (Bluetooth, 802.15.4) connectivity technologies from his tenure at Mindtree Ltd and Cypress Semiconductors.  

Rajani's educational qualifications include a BE in Electronics from Bharathiar University, followed by an MS in Electrical Engineering from Arizona State University, and an MBA from the Indian School of Business.