Ninos Mansor
Ninos Mansor is a crypto investor who co-founded ByteSize CapitalByteSize CapitalByteSize Capital was a private crypto fund and research firm founded by Ninor and Ninos Mansor. It combined with Arrington XRP Capital in 2019, with both founders joining the partnership.Open the full entry with Ninor MansorNinor MansorNinor Mansor is a crypto investor who co-founded ByteSize Capital with Ninos Mansor, was an Arrington Capital partner from 2019 to 2022, and appeared as an Edessa Capital general partner in 2023.Open the full entry, was an Arrington CapitalArrington CapitalArrington Capital is a firm that invests in digital assets and Web3 and manages funds including Arrington XRP Capital Fund; since 2025, through that fund, it has served as sponsor of the special purpose acquisition company Armada Acquisition Corp. II, driving its merger with the XRP treasury company Evernorth.Open the full entry partner from 2019 to 2022, and appeared as an Edessa Capital general partner in 2023.
Contents7 sections
Key facts
Around 2018: ByteSize Capital
Mansor and his brother Ninor invested private capital through ByteSize Capital and developed crypto research and trading tools. Michael ArringtonMichael ArringtonMichael Arrington is an American entrepreneur and investor who founded the technology publication TechCrunch in 2005, created Crunchbase in 2007, sold TechCrunch to AOL in 2010, and went on to found CrunchFund and the crypto-asset investment firm Arrington Capital.Open the full entry met them in 2018 before bringing their team into his fund.[1]
March 2019Joining Arrington’s partnership
ByteSize Capital and Arrington XRP Capital announced their combination in March 2019. Both brothers joined Michael Arrington and Heather HardeHeather HardeHeather Harde is a technology-media executive and investor, formerly CEO of TechCrunch and a co-founder of Arrington Capital. She became a strategic adviser to the investment firm in 2023.Open the full entry in the partnership, integrating research, data and backtesting tools into the investment process.[2]
June 2019Research on Algorand’s monetary design
Ninos authored The Monetary Experiment: AlgorandAlgorand (ALGO)Algorand is a public layer-1 blockchain proposed by Turing Award winner and MIT professor Silvio Micali. Its native token is ALGO, it uses a “Pure Proof-of-Stake” consensus based on verifiable random functions and cryptographic sortition, and its mainnet launched in June 2019. The Algorand Foundation, which is responsible for ecosystem growth, token supply, and governance, was originally based in Singapore and moved back to Delaware in the United States in 2026; in recent years the network has focused on payments, asset tokenization, and post-quantum cryptography.Open the full entry, examining Algo auctions, refunds, price formation and risk management, with contributions from Michael Arrington and Ninor Mansor. The report disclosed the fund’s economic interest in Algorand and presented the investment firm’s analysis.[3]
August 2022Leaving Arrington Capital
On August 18, 2022, Arrington announced the brothers’ departure to start another venture, crediting them with involvement in more than 100 deals and work on the Algorand and Moonbeam funds.[1]
February 2023Edessa Capital
The Princeton × DeSo startup event listed both brothers as Edessa Capital general partners for a February 18, 2023 discussion on starting a fund.[4]
Related Organizations, Websites, and Public Accounts
Related people and organizations include Ninor Mansor, Michael Arrington, Heather Harde, ByteSize Capital, Arrington Capital and Edessa Capital. Public event page: https://princeton.deso.com/princeton/ (opens in a new window).[4]
Sources
- Saying Goodbye to Ninor and Ninos Mansor (opens in a new window)
- Arrington XRP Capital Merges with ByteSize Capital (opens in a new window)
- The Monetary Experiment: Algorand — A Thesis For Algo Currency Markets (opens in a new window)
- Princeton x DeSo: Startup Competition (Spring 2023) (opens in a new window)