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GK8

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Cybersecurity company that offers a high-security custodian technology for managing and safeguarding digital asset

Tel Aviv-Yafo, IsraelFounded 2018Fintech
Valuation $25–50M Last recorded · 2020
Headcount <100 Current team size
Total funding $10–50M Disclosed equity funding
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About GK8

GK8, a subsidiary of Galaxy Digital (TSX:GLXY), operates as a cybersecurity firm specializing in high-security custodian technology for digital assets. The company was established in Tel Aviv, Israel, in July 2018 by Lior Lamesh (CEO) and Shahar Shamai (CTO). Both founders cultivated their expertise in cybersecurity within elite units of the Israeli Prime Minister's Office, where they were tasked with protecting the nation's strategic assets. Their decision to start GK8 stemmed from identifying significant security vulnerabilities in the digital asset market after successfully hacking a popular crypto wallet. The company targets institutional clients such as banks, hedge funds, exchanges, and other financial institutions, providing them with an on-premise, end-to-end platform for managing and safeguarding digital assets.

The company's journey includes a seed funding round of $4 million and a Series A round that brought its total funding to over $10 million. In November 2021, the crypto lender Celsius acquired GK8 for $115 million. Following Celsius's bankruptcy filing, Galaxy Digital acquired GK8 in February 2023 for approximately $44 million, integrating its team and technology. Lamesh and Shamai continue to lead Galaxy's custodial technologies business, and the acquisition added a Tel Aviv office and nearly 40 employees, including cryptographers and blockchain engineers, to Galaxy's operations.

GK8's core offerings are its patented "Impenetrable Vault," a cold storage solution, and a proprietary multi-party computation (MPC) vault, which it refers to as uMPC. The Impenetrable Vault's main feature is its ability to create, sign, and send blockchain transactions without any internet connectivity, utilizing a unidirectional outbound connection. This air-gapped design is intended to eliminate cyberattack vectors. The MPC vault facilitates automated, high-frequency transactions by splitting private key shares among multiple parties. Together, these products offer a hybrid solution for both secure offline storage and operational flexibility for activities like DeFi, staking, and tokenization. In April 2024, GK8 launched a "Tokenization Wizard," a user-friendly interface for creating and managing tokenized real-world assets on various blockchains. The company's business model is based on providing these custody technology solutions to financial institutions, which will also be integrated into Galaxy's own prime brokerage platform, GalaxyOne.

Source: Dealroom company data

At a glance

Founded
2018
Headquarters
Tel Aviv-Yafo, Israel
Sector
Fintech

Investors

6 investors on the cap table

From Dealroom's funding and investor records, grouped by the round each investor first entered.

Seed5 investors entered at this stage

  • EdenBlock
  • Marius Nacht
  • iAngels
  • The Israel Innovation Authority
  • Discount Capital

Series A1 investor entered at this stage

  • IN Venture
Team profiled 19 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 4 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Global footprint

Workforce and web traffic by country
Workforce by country
4 countries with
team presence
🇮🇱 Israel88.9%
🇺🇸 United States8.3%
🇦🇷 Argentina1.4%
🇿🇦 South Africa1.4%
4 countries shown

Market sentiment

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