About
Guy Nizan is a Venture Partner at ClearSky, where he opened and runs the firm's Tel Aviv, Israel office after joining in 2023. He previously co-founded and led IntSights, an external threat intelligence and protection company acquired by Rapid7, and earlier co-founded Cyber-School, a cyber training education company acquired by Highdele Group. He studied law and accounting at Tel Aviv University and was a founding member and officer of the IDF's cybersecurity unit.
Invests in
Cybersecurity
Experience
- Recapp SportsCEO, Co-Foundercurrent2024 — present
- ClearSkyVenture Partnercurrent2023 — present
- Self-employedAngel Investorcurrent2021 — present
- Rapid7VP, Threat Intelligence2021 — 2023Tel Aviv District, Israel
- IntSights, a Rapid7 companyCEO, Co-Founder2015 — 2021Israel
- YL VenturesInsider2020 — 2021
- Glilot Capital PartnersMember2019 — 2021New York City Metropolitan Area
- Cyber-SchoolCEO, Co-Founder2014 — 2015Israel
- CyberHatCyber consultant2012 — 2014
- CyberHatProject manager2011 — 2012
Skills & more
Project Management26Telecommunications18Business Analysis9Mobile Applications5E-commerce3Integration29IT Management15Product Management18Data Center6Requirements Analysis4IT Strategy9User Experience3
+12 more
Information Securitycyber securityInformation Security ConsultancyPMPNetwork SecuritySecurityTCP/IPFirewallsTeam ManagementAnalysisManagementTeam LeadershipLanguages English · Hebrew
From Guy's professional profile.
Colleagues at ClearSky
Alex Weiss
CEO, Co-Founder & Managing Partner at ClearSky
Anjali Nagaraja
Associate at ClearSky
Austin Summers
Senior Vice President at ClearSky
Daniel Furey
Partner, Head of Global Capital Formation at ClearSky
Erik Straser
Partner at ClearSky
Howard Shecter
Executive Partner at ClearSky
Jacqueline de Sanctis
Managing Director & Head of Investor Relations at ClearSky
James Huff
Co-Founder & Managing Partner at ClearSky
Frequently asked questions
- Who is Guy Nizan?
- Guy Nizan is a Venture Partner at ClearSky, where he opened and runs the firm's Tel Aviv, Israel office after joining in 2023. He previously co-founded and led IntSights, an external threat intelligence and protection company acquired by Rapid7, and earlier co-founded Cyber-School, a cyber training education company acquired by Highdele Group. He studied law and accounting at Tel Aviv University and was a founding member and officer of the IDF's cybersecurity unit.
- Where does Guy Nizan work?
- Guy Nizan is Venture Partner at ClearSky.
- What does Guy Nizan invest in?
- Guy Nizan invests in Cybersecurity.
- Where did Guy Nizan go to school?
- Guy Nizan studied at Tel Aviv University (Law & accounting).
Same school
Also attended Tel Aviv University412
Matan RoetAssociate at Redpoint VenturesArnon DinurPartner at 83NorthYoram SnirPartner at 83NorthRaz MaysharSenior Manager at Qualcomm VenturesDavid GoldschmidtManaging Director, Head of the Fund at Samsung Catalyst FundAmit ShofarSr. Investment Director at Samsung Catalyst Fund
+ 406 more
Shared employers
Also worked at Rapid713
Eliya ElonInvestor at Notable CapitalTim McAdamGeneral Partner, Senior Advisor at TCVCorey ThomasCEO, Rapid7 & Founding Pillar at Pillar VCAllison MacLeodVenture Partner at F-Prime Capital PartnersJosh FeinblumVenture Partner at F-Prime Capital PartnersChris YoungCEO Partner at Ardent Venture
+ 7 more
Also worked at IntSights, a Rapid7 company11
David J. BlumbergFounder and Managing Partner of Blumberg CapitalEliya ElonInvestor at Notable CapitalAlon LifshitzCo-Founder and General Partner at Hanaco Venture CapitalKobi SambourskyCo-Founder and Managing Partner at Glilot Capital PartnersArik KleinsteinCo-Founder and Managing Partner at Glilot Capital PartnersJay LeekManaging Partner at Syngenta Group Ventures
+ 5 more
Also worked at Glilot Capital Partners31
SianFounding Partner at Saas Ventures, L.L.C.Moran ZilbershteinGeneral Partner at TAU VenturesRay RothrockFund II Chair, Former Partner & Internet and Energy Investment Program Lead, Venrock at Overture ClimateDavid FairmanVenture Partner and CISO-in-Residence at SixThirty VenturesMandy AndressSecurity Advisor at Modern TechnicalKobi SambourskyCo-Founder and Managing Partner at Glilot Capital Partners
+ 25 more
