Alternative Investment Marketplace

Discover, invest, trade private securities and alternative investments.
Build your worldwide investment portfolio through a single HighCastle account.

What is HighCastle?

Alternative investments are growing dramatically, creating a major opportunity for asset managers and servicers. We provide access.

HighCastle – is the world’s biggest investment marketplace for private securities and alternative investments.

HighCastle enables investors to invest in private companies’ shares, bonds and variety of other alternative investments globally.

Who is HighCastle for?


Access to highly vetted investments from all over the world

Start investing


Get funded in crypto and fiat. Issue and trade security tokens within the UK’s securities law framework.

Start raising

Authorized Advisers

Do underwriting of tokenized corporate shares and bonds

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Investment platforms

Reach greater marketing of investment deals and better coverage of investors geography

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Marketplace Perfomance




Our Products


Discover more investment opportunities. Across markets, across asset classes, across the globe.


Alternative markets statistics and thousands of data points available via API or CSV downloads.


The Trading Platform allows investors to buy and sell tokenized securities from each other.

How it works

Why invest online with us?

  • 1

    Portfolio Diversification

    Global investment opportunities in one place: equity, bonds, debt and coins from all industries, currencies and countries

  • 2

    Liquidity of Investments

    HighCastle Tokenized Securities Exchange to trade and sell your private investments whenever you wish

  • 3

    Transactions Security

    Access to transaction history, encrypted on blockchain with unified processes of issuance, settlement, trading, storage of obligations and rights

  • 4

    Transparency of Returns

    A single account dashboard for cross-platform portfolio management, tracktion of returns and withdrawal

KYC/AML Partner

Support Partner

Cyber Security Partner

Why choose HighCastle?


All transactions in HighCastle are recorded on the blockchain - distributed shared registry and executed via smart contract to make investing and trading fast, transparent and secure.


Access to securities from thousands of different providers globally. Investment opportunities sourced from investment banks, platforms, other trusted channels.


A FinTech company with 70% of work covered through the use of APIs, bots, AI and programmable algorithms.


HighCastle takes a role of British institutional intermediary and structure cross-border investments/trades through SmartNotes to ensure a legal framework for your investments.


HighCastle is connected with the leading crypto exchanges to accept both fiat currencies and cryptocurrency as payment methods worldwide.


Our team handles all legal documentation, dual-diligence, admin and payment for both investors and businesses.

Watch our video


Why choose HighCastle Marketplace?

by HighCastle Feb 19, 2018 Blogs, Blogs special ,

HighCastle is the world’s biggest investment marketplace that provides access to 6242 projects with combined 3.3 billion in value and its growing every day. With HighCastle as your partner, you profit from a broad range of high-quality capabilities – encompassing access to global markets, state-of-the-art technology, and open product architecture.

HighCastle is initiating FCA authorisation process

by Ulyana Shtybel, Co-founder and Vice President at HighCastle Mar 28, 2018 Blogs, Blogs special , ,

A deep, comprehensive and intensive process of research and development during the last two years has lead us from the idea of securities tokenization in 2016 to the HighCastle platform in place with the primary investment market and our proprietary API to ensure open-architecture of our business model.

Why Tokenized Securities Could Be The Next Blockchain Trend To Change The Capital Market?

by Ulyana Shtybel, Co-founder and Vice President at HighCastle Apr 12, 2018 Blogs, Blogs special , , , , , , ,

There are about 2000 new ICOs launched each month. Approximately only 3% of these will get financed. Many crypto contributors are beginning to consider alternatives to coins as the liquidity of those is decreasing as the number of ICOs are increasing.

AIMS Token

DDEX Exchange Listing Announcement

by Ulyana Shtybel, Co-founder and Vice President at HighCastle Apr 23, 2018 Blogs, Blogs special , , , , , , , , ,

HighCastle is proud to announce its AIMS Token first official listing on DDEX. DDEX is a digital asset exchange serving global traders. Building on top of Ethereum smart contracts and the 0x protocol, DDEX allows users to trade ERC-20 tokens from wallet to wallet. No possibility of theft. No uncertainty of deposit/withdrawal lockup periods. We […]


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