ViroBlock Ltd.

ViroBlock is a biotech startup developing rapid solutions for viral diseases by targeting viral ion channels.

Biotechnology
Active
Har Adar, Israel Founded 2020
Last updated 2026-08-29
Total raised
—
Stage
—
Founded
2020
Headcount
5
HQ
Har Adar, Israel
Sector
Biotechnology

About

ViroBlock is a biotechnology startup focused on developing rapid solutions for viral diseases such as COVID-19, Dengue, West Nile, and Zika fevers. The company's innovative technology targets and exploits a particular vulnerability in viruses: ion channels. ViroBlock uses proprietary genetic selections in bacteria to identify new channels and inhibitors against them, which can serve as antiviral drugs by blocking essential viral components. The technology also allows for the prediction of a virus's resistance options against any identified inhibitor, preempting its evolutionary strategy. ViroBlock's drug candidates inhibit targets like the E (envelope) protein and the 3a protein in viruses, which are highly conserved and thus ideal for pharmaceutical inhibition. The company has shown promising results in tissue culture and animal studies against Zika, Influenza, and SARS-CoV-2.

Funding history · 1 round · — total

1 event/round · — Total Funding
Oct 2020
Seed Undisclosed pitchbook.com
★ Yissum

Headcount over time

5 employees (2026-09) · 1 point
5 5 2026-09

Offices

Har Adar, Israel · HQ / main office

Q&A

What is ViroBlock Ltd.'s primary focus?
ViroBlock Ltd. is focused on developing anti-viral drugs using a proprietary platform for rapidly generating them.
When was ViroBlock Ltd. founded?
ViroBlock Ltd. was founded in 2020.
Who founded ViroBlock Ltd.?
ViroBlock Ltd. was founded by Yissum, Hebrew University's technology transfer company, with Isaiah Arkin as CEO & Founder.
What is the core technology of ViroBlock Ltd.?
ViroBlock Ltd.'s core technology is an antiviral drug platform that inhibits viral ion channels to develop drugs against new viral threats or variants.
What type of funding has ViroBlock Ltd. received?
ViroBlock Ltd. received a Seed funding round in October 2020.
Which investor participated in ViroBlock Ltd.'s Seed round?
Yissum participated in ViroBlock Ltd.'s Seed funding round in October 2020.
Where is ViroBlock Ltd. headquartered?
ViroBlock Ltd. is headquartered in Har Adar, Israel.
Who is the current CEO of ViroBlock Ltd.?
Nissim Mashiach serves as the CEO of ViroBlock Ltd.

Team · 4

Isaiah Arkin
Founder · Founder and CSO
Nissim Mashiach
CEO
Clive Kabatznik
Chairperson of the Board
Roger Kornberg
Head of Scientific Advisory Board

Sectors & technology

Primary sector
Biotechnology
Target customers
Business model
B2C
Full data — links, identifiers, deals & radar signals (jobs, patents, research, more)

External links

Websiteviro-block.com

Identifiers & details

Legal nameVIROBLOCK LTD
Founded2020
Employees (exact)5

Radar intelligence

Patents

EPO3

Web history (Wayback)

Domainviro-block.com

Israeli Companies Registrar (רשם החברות / ICA)

Registrar # (ח.פ.)516242914
Statusפעילה
Corp typeישראלית חברה פרטית
Incorporated2020-08-24
Purposeלעסוק בכל עיסוק חוקי
Liabilityמוגבלת
In violation (unfiled)no
Last annual report2025
Active charges / liens0
Registry events6 — shares_capital (3), other (2), people (1)
Registered addressיצחק שדה 4 תל אביב - יפו

Recent registry events

DateEvent
2026-02-19העברת מניות
2025-11-17עדכון כתובת ו/או מען דיגיטלי
2026-02-17הקצאת מניות
2026-02-16שינוי בתקנון
2025-11-09עדכון בעלי תפקידים
2025-09-07שינוי בהרכב הון - מניות-פיצול מניה