Michael Arrington
Founder & Partner @ Arrington XRP Capital
Palo Alto, United States
Michael Arrington is a seed investor at Arrington XRP Capital in Palo Alto focused on Blockchain and Cryptocurrency. Michael Arrington is the Founder and Managing Member of Arrington Capital. He attended Claremont McKenna College.
- Total investments:
- 48
- Last investment:
- Lead investor:
- 42%
Last updated:
For AI agents: llms.txt
Industries Michael Arrington invests in
Stages Michael Arrington invests in
Countries Michael Arrington invests in
Contacts
| Type | Contact | Validation |
|---|---|---|
| Work email | ||
| Personal email | ||
| Work phone | ||
| Personal phone | ||
| Socials |
Investment Focus
Industry
- Blockchain 21 (44%)
- Cryptocurrency 12 (25%)
- Software 9 (19%)
- FinTech 7 (15%)
- Financial Services 7 (15%)
Stage
- Seed 18 (38%)
- Series A 8 (17%)
- Venture - Series Unknown 6 (13%)
- Pre-Seed 3 (6%)
- Funding Round 3 (6%)
Country
- United States 16 (33%)
- Singapore 3 (6%)
- United Kingdom 3 (6%)
- China 1 (2%)
- Canada 1 (2%)
Investments
| Company | Description | Round | Links |
|---|---|---|---|
Portal to Bitcoin
|
Portal is a financial services company that trades crypto anywhere without putting coins at risk, all from within a controllable wallet. Founded in 2018, Portal is headquartered in San Francisco, California. | $25M / Venture - Series Unknown / Dec 04, 2025 | |
Axelar Network
|
Axelar is a cross-chain communication tool developing interoperability software to connect blockchain ecosystems, applications, and users. Axelar Network consists of a protocol suite, tools, and APIs, designed to break down the barriers to cross-chain communication. Axelar enables developers to build on the best platform for their needs whileleveraging the Axelar stack to unlock cross-chain composability and liquidity.The company was founded by Sergey Gorbunov and Georgios Vlachos in 2020. | $30M / Initial Coin Offering / Mar 11, 2025 | |
Skyfire Systems
|
Skyfire, a financial stack designed to enable autonomous agentic AI commerce, is to establish the first fully autonomous, open agentic AI economy in history. | $8.5M / Seed / Aug 21, 2024 | |
RedStone
|
RedStone is a quickly growing blockchain startup, building two data-focused products aimed to unlock the potential of DeFi & Web3:1. RedStone Oracles: A new generation of blockchain oracles with a novel architecture that optimises the way data is delivered to decentralised Apps (dApps). RedStone provides 1,100+ data feeds delivered at a fewseconds refresh interval to Ethereum, Polygon, Avalanche, Arbitrum and 30+ other top chains. We support price feeds for assets such as popular & long-tail tokens, fiat currencies, commodities, stocks, NFTs floor and RedStone can deliver also other types of data i.e. transactions volume data or results of real-world events like sports games. Available feeds -> https://app.redstone.finance/ ; Sample integration on popular chains -> https://showroom.redstone.finance/2. Warp: A data-processing Smart Contract layer on top of the Arweave data storage chain. Warp is optimised for data-heavy use cases such as sophisticated gaming & social dApps, interactive NFTs, simple on-chain Machine Learning and other blockchain-based solutions that have not been feasible before, due to huge data processing costs on chains like Ethereum or Avalanche. Warp overview -> https://warp.cc/ ; Warp Academy -> https://academy.warp.cc/RedStone Gitcoin grant -> https://gitcoin.co/grants/5477/redstone-new-generation-of-oracles-for-defiWarp Gitcoin grant -> https://gitcoin.co/grants/7733/warp-contracts-on-arweave-revolution-of-on-chain- | $15M / Series A / Jul 02, 2024 | |
Glacis Labs
|
Glacis Labs is a middleware protocol. It enables developers to control cross-chain risk. Glacis provides a plug-and-play solution that eliminates the research and decision-making process in cross-chain processes, simplifying interchain execution. | $2.1M / Seed / May 09, 2024 | |
Merkle Trade
|
Merkle Trade is the creator of a decentralized trading platform with functionality for commodities, currencies, and cryptocurrencies. | $2.1M / Seed / Apr 01, 2024 | |
QED Protocol
|
QED is the world's first zk-Native blockchain protocol, built to scale trustless computation and privacy for the next generation of the internet. | $3M / Seed / Feb 26, 2024 | |
Drosera
|
Drosera is a decentralized incident response system that uses hidden security intentions to contain and mitigate attacks. | $1.5M / Pre-Seed / Feb 15, 2024 | |
Delegate
|
Delegate focuses on increasing the security of on-chain identities and digital asset management such as NFTs and ERC20 tokens. | $9M / Seed / Feb 01, 2024 | |
bbox
|
bbox offers professional trading on the Decentralized Perpetual Exchange and hybrid markets. | $2.7M / Pre-Seed / Jan 30, 2024 | |
| See all 48 investments → | |||
Co-Investors
About Arrington XRP Capital
Arrington XRP Capital is a digital asset management firm in blockchain-based capital markets. The company was founded in 2017.
Arrington XRP Capital Contacts
| Name | Phone | Socials | |
|---|---|---|---|
Ninos Mansor
Partner
|
|||
Geoffrey Arone
Co-Founder & Limited Partner
|
|||
|
Michael Arrington
Founder & Partner
|
|||
|
Michael Sablone
Senior Developer / Tech Lead
|
|||
Ninos Mansor
Partner; Partner
|
Access 48,091 investors
822 industries, 177 countries. Updated daily. Emails and phones included.
Browse database — It's Free!
Find investors for your startup
Search 48,091 investors by industry and country. Emails and phones included.
Similar Investors
Recommended lists
FAQ
What does Michael Arrington invest in?
Michael Arrington invests primarily in Blockchain, Cryptocurrency and Software startups, most often at Seed and Series A stage. Most of the 48 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.
How do I contact Michael Arrington?
Public channels for Michael Arrington include LinkedIn, X (Twitter) and the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.
When did Michael Arrington last invest?
The most recent investment recorded for Michael Arrington closed in Dec 2025. Shizune tracks 48 investments in total for this profile, including round sizes, stages and portfolio companies, all sourced from confirmed public funding rounds and refreshed monthly.
Is Shizune's investor data accurate?
Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Sep 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.
Contact your first 100 investors today
Find who invests in your industry, stage, and country. Download investor list with emails in 5 minutes.
Find investors — It's Free!
Continue with Google
Continue with LinkedIn
