Castle Island Ventures

The internet is fundamentally broken. It's because of monetization. “Show me the incentives and I'll show you the outcome.” Our mission is to remonetize the web by enabling value for value monetary exchanges between pubs/creators/orgs and their users. A new business model for the open internet. We are unlocking this with friction-minimized streaming payments that are no/low cost, instantly settled, trust-minimized. It is built on the best global digital monetary network ever conceived, Bitcoin. Enabled by Lightning Network. Most users don't need to know this or be a Bitcoiner. Over time we suspect many will.

Flipside Crypto, Inc. operates a crypto currency information platform that provides business intelligence for blockchain organizations. The company offers cryptocurrency management services, including cryptocurrency acquisition, digital walleting, custody services, community tools, and portfolio dashboards for investors. It offers data models to evaluate liquid crypto assets and offers investment portfolios related to cryptocurrencies. The company was incorporated in 2017 and is based in Boston, Massachusetts.

Flipside Crypto, Inc. operates a crypto currency information platform that provides business intelligence for blockchain organizations. The company offers cryptocurrency management services, including cryptocurrency acquisition, digital walleting, custody services, community tools, and portfolio dashboards for investors. It offers data models to evaluate liquid crypto assets and offers investment portfolios related to cryptocurrencies. The company was incorporated in 2017 and is based in Boston, Massachusetts.

Valiu is a fintech company that provides borderless financial services to all Venezuelans. It has created a mobile application that allows access to a convenient dollar savings and transfer system for any migrant or family member, regardless of their socioeconomic status or the range of their phone. The company was co-founded by Simon Chamorro, David Barinas, and Alberto Niego in 2018.

Casa offers a secure storage solution for consumers and companies to safely store their digital wealth. Casa helps users manage their private keys, through the multi-location security model that removes single points of failure and protects users from theft, accidents, and disasters, providing them with the tools for securing their digital lives.

River Financial is a challenger financial institution specializing in Bitcoin financial services. River Financial's flagship product, a Bitcoin brokerage, provides sophisticated retail investors with a high-touch platform to buy and sell Bitcoin. Founded in early 2019 by cousins Alexander Leishman and Andrew Benson, River's brokerage product provides its clients with best-in-class security, a world-class client service experience, and investment performance tools such as cost basis tracking.

Casa offers a secure storage solution for consumers and companies to safely store their digital wealth. Casa helps users manage their private keys, through the multi-location security model that removes single points of failure and protects users from theft, accidents, and disasters, providing them with the tools for securing their digital lives.

DUST Identity, Inc. develops an authentication system technology that utilizes nano-diamonds to create an unclonable identity layer on any object for any supply chain. It also provides an optical scanner and cloud-based infrastructure that provides an interface to the object identity. DUST Identity, Inc. was formerly known as Diamond Nanotechnalogies, Inc. The company was founded in 2011 and is based in Framingham, Massachusetts with an additional office in Princeton, New Jersey.

Coin Metrics Inc., an online publisher of blockchains and cryptocurrency, provides market and network data, analytics, and research to the community and other industries. It offers CM Network Data Pro, a data feed of crypto network data for institutions that features historical data aggregated daily/block-by-block for various top assets with new assets and metrics added on regular release cycles. The company also provides CM Market Data Feed, a solution that offers trade, candle, and order book data standardized to a common schema across various crypto exchanges; and CM Reference Rates, a solution that represents a fixed pricing of one unit of an asset quoted in U.S. dollars for various assets. Coin Metrics Inc. was founded in 2017 and is based in Cambridge, Massachusetts.

We build applications that generate revenue using the latest in web and mobile technologies.

Andrena is a developer of an internet distribution platform designed to offer high-speed internet at reduced costs.The company works directly with internet providers who provide internet for universities, hospitals, financial services and other users with heavy data needs and leverage their existing fiber networks to deploy a series of antennas to blanket a geography with internet access, allowing customers and businesses to tap into a faster network wirelessly.

Valiu is a fintech company that provides borderless financial services to all Venezuelans. It has created a mobile application that allows access to a convenient dollar savings and transfer system for any migrant or family member, regardless of their socioeconomic status or the range of their phone. The company was co-founded by Simon Chamorro, David Barinas, and Alberto Niego in 2018.

Reporting taxes on crypto trading is easy with ZenLedger cryptocurrency tax software. Built by expert industry veterans in technology, finance, and accounting, ZenLedger allows you to easily import crypto transactions, calculate gains and income, 
and prepare your tax returns. Our automated platform helps investors and tax professionals reduce the uncertainty, frustration, and manual grunt work of creating personal crypto brokerage accounts. Works with most exchanges, currencies, and wallets.

NFT Valuation Platform and Community

Manetu, Inc. develops a consumer privacy management (CPMSM) platform. It offers The Manetu CPMSM, a platform that acts as an infrastructure for the end-to-end management of the private information to provide the service to the users’ customers. The company’s platform is also used for collaborating with the customers to manage all their sensitive data; enables users’ customers to determine what data they will share and for how long. Manetu, Inc. was incorporated in 2019 and is based in Ridgewood, New Jersey.

The internet is fundamentally broken. It's because of monetization. “Show me the incentives and I'll show you the outcome.” Our mission is to remonetize the web by enabling value for value monetary exchanges between pubs/creators/orgs and their users. A new business model for the open internet. We are unlocking this with friction-minimized streaming payments that are no/low cost, instantly settled, trust-minimized. It is built on the best global digital monetary network ever conceived, Bitcoin. Enabled by Lightning Network. Most users don't need to know this or be a Bitcoiner. Over time we suspect many will.

EasyBins simplifies your grocery routine once and for all, so you can focus on the things that matter. We provide a one-stop, single-checkout marketplace of your favorite national and local brands, products, and retailers, delivered twice-daily to your doorstep. Click The Box, Get A Bin.

DUST Identity, Inc. develops an authentication system technology that utilizes nano-diamonds to create an unclonable identity layer on any object for any supply chain. It also provides an optical scanner and cloud-based infrastructure that provides an interface to the object identity. DUST Identity, Inc. was formerly known as Diamond Nanotechnalogies, Inc. The company was founded in 2011 and is based in Framingham, Massachusetts with an additional office in Princeton, New Jersey.

Yellow Card Financial, LLC owns and operates an online cryptocurrency trading platform. It offers OTC cryptocurrency trading services, payment solutions, bitcoin, Yellowcartd merchant, and currency exchange services. The company also provides gift cards for cryptocurrency that could upend the traditional remittance market in Nigeria and other countries. In addition, it offers services to buy and sell bitcoins through stores. Yellow Card Financial, LLC was founded in 2016 and is based in Chamblee, Georgia. It has locations in the United States, Nigeria, Tanzania, Cameroon, Kenya, and South Africa.

Capsule Social operates as a decentralized social media platform.

Yellow Card Financial, LLC owns and operates an online cryptocurrency trading platform. It offers OTC cryptocurrency trading services, payment solutions, bitcoin, Yellowcartd merchant, and currency exchange services. The company also provides gift cards for cryptocurrency that could upend the traditional remittance market in Nigeria and other countries. In addition, it offers services to buy and sell bitcoins through stores. Yellow Card Financial, LLC was founded in 2016 and is based in Chamblee, Georgia. It has locations in the United States, Nigeria, Tanzania, Cameroon, Kenya, and South Africa.

River Financial is a challenger financial institution specializing in Bitcoin financial services. River Financial's flagship product, a Bitcoin brokerage, provides sophisticated retail investors with a high-touch platform to buy and sell Bitcoin. Founded in early 2019 by cousins Alexander Leishman and Andrew Benson, River's brokerage product provides its clients with best-in-class security, a world-class client service experience, and investment performance tools such as cost basis tracking.

Talos Trading is an institutional technology infrastructure provider that connects all crypto ecosystem participants to support a full trading lifecycle. Talos Trading is based in New York, NY and was co-founded by Anton Katz and Ethan Feldman in 2018.

BlockFi, Inc., a bitcoin lending company, provides wealth management products for crypto investors. It offers BlockFi Interest Account, an interest-bearing account that provides yields to crypto investors who store their Bitcoin, Ether, and Gemini Dollar (GUSD) at BlockFi; and loans backed by clients’ cryptocurrency. The company also provides BlockFi Currency Trading, a platform for crypto investors that allows them to exchange cryptocurrency pairs between BTC, ETH, and GUSD; and offers customizable lending of cryptocurrencies, stable coins, and the U.S. dollars to institutions. BlockFi, Inc. was founded in 2017 and is based in New York, New York.

Talos Trading is an institutional technology infrastructure provider that connects all crypto ecosystem participants to support a full trading lifecycle. Talos Trading is based in New York, NY and was co-founded by Anton Katz and Ethan Feldman in 2018.

Zabo combines your bank with your cryptocurrency. ✓ Support for Bitcoin and Ether at launch ✓ A full bank: checking, savings, debit card, direct deposit and more ✓ Easily exchange cryptocurrency right from your bank account Signups coming in early 2019.

Attestiv Inc. provides a software solution that verifies the authenticity of digital photos and videos for businesses. Its products serves organizations in insurance, public safety, real estate, automotive, news and media, and banking sectors. The company was incorporated in 2018 and is based in Natick, Massachusetts.

BlockFi, Inc., a bitcoin lending company, provides wealth management products for crypto investors. It offers BlockFi Interest Account, an interest-bearing account that provides yields to crypto investors who store their Bitcoin, Ether, and Gemini Dollar (GUSD) at BlockFi; and loans backed by clients’ cryptocurrency. The company also provides BlockFi Currency Trading, a platform for crypto investors that allows them to exchange cryptocurrency pairs between BTC, ETH, and GUSD; and offers customizable lending of cryptocurrencies, stable coins, and the U.S. dollars to institutions. BlockFi, Inc. was founded in 2017 and is based in New York, New York.

DFX Finance is a new decentralized finance exchange protocol optimized for non-U.S. dollar stable coins.

Reporting taxes on crypto trading is easy with ZenLedger cryptocurrency tax software. Built by expert industry veterans in technology, finance, and accounting, ZenLedger allows you to easily import crypto transactions, calculate gains and income, 
and prepare your tax returns. Our automated platform helps investors and tax professionals reduce the uncertainty, frustration, and manual grunt work of creating personal crypto brokerage accounts. Works with most exchanges, currencies, and wallets.

Notabene helps financial companies comply with new, global regulations for crypto transactions. We are the first platform that provides full compliance with the Travel Rule. Our current offering consists of a unified API and dashboard helping compliance officers within crypto businesses manage risk for both Travel Rule and non-custodial transactions. We provide our customers with access to the widest reach of crypto businesses for them to interact with. We not only simplify compliance for them but also bring more confidence to transactions on their platforms - ultimately helping them grow the number of transactions and thus their business.

Coin Metrics Inc., an online publisher of blockchains and cryptocurrency, provides market and network data, analytics, and research to the community and other industries. It offers CM Network Data Pro, a data feed of crypto network data for institutions that features historical data aggregated daily/block-by-block for various top assets with new assets and metrics added on regular release cycles. The company also provides CM Market Data Feed, a solution that offers trade, candle, and order book data standardized to a common schema across various crypto exchanges; and CM Reference Rates, a solution that represents a fixed pricing of one unit of an asset quoted in U.S. dollars for various assets. Coin Metrics Inc. was founded in 2017 and is based in Cambridge, Massachusetts.