![]() Cumberland Cumberland DRW (formerly known as Cumberland Mining & Materials) is a trading company that provides liquidity solutions in crypto assets. | ![]() zkTube zkTube Labs is a company developing a network protocol ZK-Rollup based on Ethereum layer 2 technology and aims to reduce congestion, processing delays, and excessive gas fees on Ethereum. | ![]() System 9 System 9 is a digital asset market making firm providing software-based trading services to token issuers and digital asset exchanges. | |
Founding Date | Founding Date 2014 | Founding Date 2020 | Founding Date 2017 |
Type | Type Subsidiary | Type Private | Type Private |
Tags | |||
Locations | Locations HQ | Locations Los Angeles, US HQ | |
Employees | Employees 365% decrease | Employees 2417% decrease | Employees 20 |

zkTube Labs is a company developing a network protocol ZK-Rollup based on Ethereum layer 2 technology and aims to reduce congestion, processing delays, and excessive gas fees on Ethereum.
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System 9 is a digital asset market making firm providing software-based trading services to token issuers and digital asset exchanges.
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