Itzik Parnafes

Itzik Parnafes is a Venture Partner at Key1 Capital, where the firm describes him as bringing over 20 years of experience leading technology investments and mentoring entrepreneurs, especially in infrastructure software, application software, and consumer technology. Key1 says his role gives growth-stage founders a perspective across the entrepreneurial journey, combining operating and investment experience.

Before Key1, Parnafes was a General Partner at Battery Ventures. Battery announced his promotion to General Partner on September 13, 2012, after he joined the firm as a Partner in 2009 and had previously worked with Battery as an Entrepreneur in Residence in its Israel office. At Battery, he led the infrastructure practice, focused on enterprise IT themes including storage, software-defined networking, big data/analytics, and cloud technologies.

Parnafes was an entrepreneur before becoming a venture investor. He co-founded Kagoor Networks, a VoIP technology company, and Battery’s 2012 announcement says Kagoor was acquired by Juniper Networks. Earlier, he led R&D at Class Data Systems, which was acquired by Cisco. Public bios also note that before entering the private sector he led an infrastructure project in the Israel Defense Forces that won the Israel Defense Award.

His education is technical: Forbes lists a Bachelor of Arts/Science from the Technion-Israel Institute of Technology, while event and investor bios describe a B.Sc. summa cum laude in computer science and math from the Technion and graduate study in computer science/math at the Weizmann Institute of Science.

• Focuses on infrastructure software, application software, and consumer technology at Key1 Capital, with a growth-stage founder-support role.
• Key1 Capital’s stated market is Israeli and Israeli-related growth technology companies, with a reported investment range of $20M-$40M.
• Historically at Battery Ventures, Parnafes led infrastructure investments and focused on enterprise IT themes such as storage, cloud technologies, big data/analytics, and software-defined networking.
• He has a pattern of backing technically deep companies early: Battery’s XtremIO case study says Parnafes met the founders while the company was still in “deep R&D mode,” and that his computer-science/math background helped Battery dig into use cases and secure the lead Series B position.
• His own quoted investment rationale for Stoke emphasized category timing and operational need: “At Battery we've made many investments around the future of work,” but Stoke’s comprehensive solution for managing freelancers and contractors was “really unique.”
• For autonomous trucking, Parnafes described autonomy as “one of the most major technology shifts of the last 100 years” and said Battery had researched the trend for several years before backing Kodiak Robotics.
• In board work, Parnafes emphasizes trust and candor. In a 2025 Key1 article, he wrote that strong boards depend on “trust, respect, and clear judgment,” and warned founders against over-polishing reality in board meetings.