Cybersecurity Built for the Connected Car Age

Upstream was founded by Yoav Levy (CEO) and Yonatan Appel (CTO), two seasoned security professionals with over 20 years of professional experience. They understood that the automotive market is undergoing a massive disruption, potentially greater than the one experienced by the  mobile phone industry and that this disruption will require radically different security solutions in order to reach its potential – automotive cybersecurity solutions purpose-built for the automotive industry and its unique challenges.

Vehicle fleets are becoming the new enterprise – cars, drivers and data center command and control servers are taking the roles of employees, desktops and cloud infrastructure. This new enterprise requires a new breed of solutions, one that is purpose built for the unique challenges of the automotive industry and to the various types of fleets. In a similar fashion to the cybersecurity transformation in traditional IT, Upstream’s solution turbo charges the mountains of data collected by vehicle fleets to establish a new generation of security solutions, one that is designed for the age of “fleets everywhere” – the first Fleet-wide Automotive Cybersecurity platform.

Upstream is establishing the evolutionary leap required to protect next generation connected vehicles and fleets from cyber threats and fraud attacks.

We are a team of cybersecurity and data professionals with a clear focus on our customers’ success – protecting the people and vehicles that make up their fleets during this period of unprecedented growth. 




Yoav is leading Upstream's strategic direction, culture and business execution, over 17 years of experience with multi-national high-tech companies and start-ups. He brings rich leadership experience in management, marketing and business development of IT and security products spanning over a dozen years of experience in category leading vendors Check Point, Juniper Networks and Broadcom. Yoav is an avid kite boarder and surfer.



Yonatan is leading Upstream's product development, bringing 20 years of technology development and product management experience in industry-leading multinational companies. He brings deep experience in cyber security innovation in world leading application security companies such as Check Point and Imperva, as well as experience in developing enterprise grade cloud based analytics technologies in Microsoft. He also served in an elite technological unit in the IDF Intelligence Corps. Yonatan holds a BA in Computer Science from the Open University of Israel (cum laude), and an LL.B from Tel Aviv University.

Dan Sahar

Vice President of Product

Dan drives product management and go-to-market activities for Upstream, bringing more than eighteen years of marketing and product management experience at high technology companies. Prior to Upstream, Dan was Co-founder and VP of Marketing for Qwilt, an Accel and Bessemer funded startup, from inception to becoming the market leader in Edge Content Delivery with eight digit annual revenues. Earlier in his career, Dan held a variety of product and marketing roles in leading vendors such as Crescendo Networks (acquired by F5 Networks), Juniper Networks and Kagoor Networks (acquired by Juniper) as well as engineering management positions at Kagoor Networks and Seabridge (Nokia Siemens Networks). Dan holds a Bachelor's degree in Computer Science and Business from Tel Aviv University Magna Cum Laude and an MBA (Marketing) from the Leon Recanati School in Tel Aviv University.

Jeff Lebowitz

Vice President Market Development

Jeff brings over two decades of experience to Upstream, with expertise spanning product development, resource optimization, marketing and sales, with a particular focus on Customers and developing talent. Jeff previously served as Chief Business Development Officer and EVP of Sales for Cybereason, where he helped increase SaaS Annual Contract Value by tens of millions of dollars within a fiercely competitive market. In just over two years, he built the sales organization from the ground up to 65 people. Prior to his time at Cybereason, Jeff served as director of worldwide sales for F5 Networks, where he led US and Israel sales teams while expanding locally into EMEA and Asia/Pacific. He holds a B.A. in interdisciplinary studies from Hofstra University.

Ron Shragai

Head of Services

Ron drives the Service and the program delivery execution at Upstream ,as a senior manager with over than 15 years of outstanding experience in the Telco & Software arena he specialized in delivery of software services. Before joining Upstream , Ron launched and managed a service and support organization in Optimal+, a leading analytic startup in the Semiconductor software echo system. Prior that he was part of the establishment team of HOT-Mobile (Israeli cellular service provider) multi millions dollars- 4G cellular network and as a senior manager was responsible for the foundations of all service aspects, he started his professional experience in Motorola solutions as a cellular engineer. Ron served as a Naval officer ,as a commander of Patrol boat in the Israeli navy .He holds a Bachelor's degree in Computer Science and MBA (Executive) from the Leon Recanati School in Tel Aviv University. In his free time Ron participates in triathlons and marathons.

Oded Yarkoni

Head of Marketing

Oded Yarkoni is leading Upstream's marketing division. Prior to joining Upstream, Oded has worked for Check Point Software Technologies, where in addition to leading the pre-sales support for the far-east region, he had gained over 10 years of cybersecurity experience in Marketing, Product Management, and Technological Project Management. In addition to spending 2 years in China, earning both business and cultural experience within the far-east culture, Oded had also served at IDF's technological wing in the elite 8200 unit of the intelligence force. Oded holds an M.A. in Entrepreneurship and Design from The College of Management Academic Studies and a B.A. in Humanities and Social Sciences from Tel Aviv University.

Board of Directors

Izhar Armony

Izhar has extensive experience in the technology industry, through both company operations and venture capital investment. Since 1997, he has been a partner at Charles River Ventures investment firm. Earlier, he served as vice president of marketing and business development of Onyx Interactive, an interactive training company based in Tel Aviv. Izhar served as an officer in the IDF. He received an M.B.A. from the Wharton School of Business and an M.A. in Cognitive Psychology from the University of Tel Aviv in Israel.

Arik Klienstein

Glilot Capital Partners Co-founder & Managing Partner. For over 25 years Arik has been founding, growing and financing innovative technology companies. He co-founded Glilot Capital and supported the five portfolio companies acquired. Arik entered the Venture Capital world during the 90’s at Jerusalem Global Ventures and Bank Tefachot Provident Funds, an Israeli institutional investor, Between 2002-2010 in the US, he served in financial and operational executive roles in three Israeli innovative technology companies with US Based HQ, dealing directly with the growth challenges of Israeli startups operating in the US and other global markets. These included: ECtel (acquisition by Verint), VideoCodes (acquired by Thomson) and Intercure (IPO). Arik served as an Officer and Engineer in an Elite IDF technology unit and he holds a B.Sc. in Industrial Engineering & Management from the Technion - Israel Institute of Technology and an MBA in Finance & Technology Management from Tel Aviv University’s Kellogg-Recanati School of Management. Arik is a board member of IATI (Israel Advanced Technology Industries) and of the Technion Friends Society.

Board Observers

Kobi Sambursky

Glilot Capital Partners Co-founder & Managing Partner Kobi, a serial entrepreneur at heart with over twenty-five years of experience in technology and investment, co-founded Glilot Capital Partners in 2011, with five exits and a strong portfolio. He previously founded and successfully exited technology companies including Lamda Communication Networks (acquired by NICE Systems) and iWeb Technologies (acquired by a Japanese consortium) and was a member of the founding team of Infogear Technologies, the creator of the original iPhone (acquired by Cisco). Kobi served as an Officer in an Elite IDF technology unit. He holds a B.Sc. (Cum Laude) in Computer Science from the Technion - Israel Institute of Technology and an MBA (Magna Cum Laude) in Finance & Technology from Tel Aviv University.

Michael Granoff

Maniv Mobility, President. Michael founded Maniv Investments in 1997. He is a founding board member of Securing America’s Future Energy, a Washington, DC-based group that brings together corporate and military leaders to craft and advocate for energy security policy. He has been active in several presidential campaigns and political organizations as well as a number of non-profit organizations. In 2010, Michael was awarded the Asper Award for Global Entrepreneurship by the International School of Business at Brandeis University. He holds a BA from Tufts University, an MBA from the Kellogg School of Management at Northwestern University, as well as a JD from Northwestern School of law.


Charles River Ventures

Maniv Mobility

Glilot Capital Partners