prometheum.com

Prometheum Capital provides institutional custody for digital assets—covering digitally-native securities, tokenized securities, and cryptocurrency—inside a broker-dealer framework. Its regulatory standing matters because the firm describes itself as the first SEC-registered special purpose broker-dealer and an SEC "Qualified Custodian,"* which is the basis for distributing and managing digital assets through traditional market channels. This custody offering is relevant if you are an issuer, fund, or broker-dealer that needs a regulated home for digital assets rather than a purely crypto-native custodian.

What the custody service actually covers

Prometheum Capital's custody is positioned as the foundation of its digital markets offering. According to the site, it supports three asset categories within one broker-dealer structure:

• Digitally-native securities — securities issued directly on a blockchain
• Tokenized securities — traditional instruments represented on-chain
• Cryptocurrency — crypto assets held alongside the securities business

The site also lists the instrument types the broader infrastructure is built to support as securities move on-chain: equities, debt, ETFs, mutual funds, money market funds, structured products, and others.

Custody inside a broker-dealer framework

The distinguishing feature is not just that assets are held, but where. Custody sits within a registered broker-dealer, which the site frames as the requirement for distributing and managing digital assets through traditional market channels. In practice, that means custody is connected to the rest of the lifecycle—issuance, clearing, and eventual trading—rather than being a standalone vault.

Why the SEC registration matters

The site makes two specific regulatory claims that carry the weight of the offering:

1. First SEC-registered special purpose broker-dealer — a broker-dealer category built specifically for digital asset securities.
2. SEC "Qualified Custodian"* — the designation referenced for holding client digital assets.

For a reader deciding whether this matters, the practical point is chain of accountability. A qualified custodian inside a broker-dealer framework gives issuers and broker-dealers a regulated counterparty for assets that would otherwise sit with an unregistered crypto custodian. The asterisk on "Qualified Custodian" in the source signals a qualification worth confirming directly with the firm before relying on it.

How custody fits the full lifecycle

Custody is one product in a connected stack. The site describes the flow as:

The stated intent is full lifecycle support under U.S. securities laws: once a product is issued, it can access custody and correspondent clearing, and in the future the ATS secondary market.

Who this is for, and what to check first

This offering fits organizations that need regulated custody as part of a securities workflow—issuers raising capital on-chain, funds distributing blockchain-based products, and traditional broker-dealers wanting to offer digital assets to clients through correspondent clearing.

Before committing, verify the specifics the site does not detail: the exact scope of the "Qualified Custodian" designation, which assets are accepted, fee and account terms, and the current status of the ATS (the site frames it as future). The site directs interested parties to submit an indication of interest and to create a ProCap account for custody.

Prometheum is a market-infrastructure provider for blockchain-based securities, operating through an SEC-registered broker-dealer network. It covers the full lifecycle of digital assets — issuance and distribution, custody, correspondent clearing, and secondary trading — under U.S. securities laws. It is relevant if you are an issuer wanting to raise capital with securities on a blockchain, a traditional broker-dealer seeking digital-asset access, or an institution needing qualified custody.

The four service lines

Prometheum describes its offering as end-to-end infrastructure. The table below maps each service to what it does and who it is for.

How the pieces connect

The model is a lifecycle rather than a set of standalone products. An issuer enters through ProFinancial for capital formation and distribution. Once issued, the product can access Prometheum Capital's custodial and correspondent clearing services. Secondary trading is described as a future capability through Prometheum ATS, a FINRA member and SEC-registered venue. In other words, the same ecosystem is intended to carry a security from issuance through custody and clearing to trading, without leaving the U.S. regulatory perimeter.

The custody and regulatory angle

Prometheum Capital is described as the first SEC-registered special purpose broker-dealer and as an SEC "Qualified Custodian." That status matters because custody is positioned as the foundation of digital markets: distributing and managing digital assets through traditional channels generally requires a custodian that fits existing regulatory expectations. The custody service explicitly spans three asset types — digitally-native securities, tokenized securities, and cryptocurrency.

Asset coverage

The infrastructure is described as supporting equities, debt, ETFs, mutual funds, money market funds, structured products, and other instruments as they move on-chain. That breadth is the practical test of fit: if your product type is on that list, the issuance-to-trading path is designed for it.

What to check before engaging

• Trading availability. Secondary trading is framed as a future capability via Prometheum ATS, so confirm current status before planning around it.
• Which entity you need. Issuance runs through ProFinancial, custody and clearing through Prometheum Capital — the entry point differs by goal.
• Onboarding path. The site offers a sign-in/sign-up flow and an indication-of-interest form; pricing and account requirements are not specified in the available material, so verify terms directly.
• Regulatory scope. All services are presented as operating under U.S. securities laws, which matters if your entity or clients sit outside that framework.

For a firm weighing digital-asset infrastructure, Prometheum's distinguishing claim is the combination of qualified custody and broker-dealer clearing in one regulated stack, rather than any single service.

Prometheum supports blockchain-based securities issuance and distribution through ProFinancial, which serves as the entry point to its ecosystem for capital formation. Once a security or investment fund is issued on a blockchain, the product can connect to Prometheum Capital's custodial and broker-dealer correspondent clearing services, with a planned path to secondary market trading through Prometheum ATS, a FINRA member and SEC-registered venue. This applies to issuers and investment fund sponsors that want to raise capital and distribute securities products on a blockchain while operating under U.S. securities laws.

The issuance and distribution layer: ProFinancial

Prometheum's materials describe blockchain issuance alone as insufficient. ProFinancial is positioned as the capital formation service that takes an issuer from issuance through distribution of securities and investment funds on a blockchain. In practical terms, an issuer uses this layer to raise capital and distribute the resulting product, rather than only minting a token.

The scope covers securities products issued on a blockchain, including investment funds. Prometheum's infrastructure description also lists support for equities, debt, ETFs, mutual funds, money market funds, structured products, and other instruments as they move on-chain.

What happens after issuance

Issuance is the start of a lifecycle, not the end. Prometheum describes the following connected services:

Prometheum Capital is described as the first SEC-registered special purpose broker-dealer and an SEC "Qualified Custodian," which is the basis for offering custody through traditional market channels. Custody is presented as the foundation of digital markets because distribution and management of digital assets depend on a qualified custodian.

The path toward secondary trading

The stated design is a full lifecycle under U.S. securities laws: issue through ProFinancial, custody and clear through Prometheum Capital, and eventually trade on Prometheum ATS. The secondary market venue is described as a future capability, so issuers should treat trading access as a planned stage rather than a current certainty.

Who this fits

This model suits issuers and fund sponsors that want blockchain-based issuance but also need regulated custody, broker-dealer distribution channels, and a route to secondary liquidity. Firms that only need token creation without U.S. securities-law wrappers are outside the described scope. Traditional broker-dealers seeking to offer digital assets to clients can use correspondent clearing separately from issuance.

To move forward, Prometheum directs interested parties to submit an indication of interest and to create a ProCap account for custody services.

Prometheum's infrastructure is designed to support the full lifecycle of digital assets under U.S. securities laws—covering issuance, custody, correspondent clearing, and secondary trading. According to the company, the asset scope spans digitally-native securities, tokenized assets, and cryptocurrency, with infrastructure built for securities as they move on-chain, including equities, debt, ETFs, mutual funds, money market funds, and structured products. The practical condition: each activity is delivered through a specific entity in the Prometheum network, so what you can do depends on which service and entity you engage.

Asset coverage at a glance

The company describes its infrastructure as supporting "the full lifecycle of digital assets—from digitally-native securities, to tokenized assets, to crypto," and lists equities, debt, ETFs, mutual funds, money market funds, structured products, and other instruments as the securities types its on-chain infrastructure is built to support.

The four service layers and what each handles

Issuance and distribution

ProFinancial is the entry point to the Prometheum ecosystem for capital formation—raising capital and distributing securities products issued on a blockchain. The company is explicit that blockchain issuance alone isn't enough: once issued, products can access Prometheum Capital's custodial and correspondent clearing services, and in the future Prometheum ATS's secondary market. That sequencing matters if you are an issuer planning a tokenized offering—issuance is the first step, not the whole path.

Custody

Prometheum Capital provides institutional custody for digital assets, supporting digitally-native securities, tokenized securities, and cryptocurrency within a broker-dealer framework. The company states it is the first SEC-registered special purpose broker-dealer and an SEC "Qualified Custodian," which it presents as the basis for distributing and managing digital assets through traditional market channels.

Correspondent clearing

Prometheum Capital's correspondent clearing services let traditional U.S. broker-dealers offer and transact digital assets on behalf of their clients. This is the layer relevant if you are an existing broker-dealer looking to add digital asset access without building the infrastructure yourself.

Trading

Secondary markets trading for digital assets is described as part of the offering, with Prometheum ATS's FINRA member and SEC-registered secondary market framed as a future stage of the lifecycle. If secondary liquidity is central to your plan, treat the trading venue as a forward-looking component rather than a currently available one based on this page.

How to decide whether your asset fits

Use these questions to map your situation to the right layer:

1. What are you holding or issuing? If it is a digitally-native security, tokenized asset, or crypto, custody and clearing are the relevant starting points. If it is a traditional security type (equity, debt, fund, structured product) intended to move on-chain, the on-chain infrastructure layer applies.
2. What do you need to do first? Issuers start with ProFinancial for issuance and distribution. Broker-dealers start with correspondent clearing. Asset holders start with custody.
3. Do you need a secondary market now? The page positions ATS trading as a future capability; plan around issuance, custody, and clearing as the currently described services.
4. Which entity will you contract with? Issuance runs through ProFinancial, custody and clearing through Prometheum Capital. Confirm the entity and its registrations for your specific activity before proceeding.

Practical next step

The site directs interested parties to submit an indication of interest, and custody inquiries to create a ProCap account. Before doing either, confirm in writing which entity will provide each service you need and the current status of the ATS secondary market, since the page describes trading as a future stage of the lifecycle rather than a live service.

Prometheum Capital's correspondent clearing is designed for established U.S. broker-dealers that want to let their clients hold and transact digital assets without building the infrastructure themselves. The service sits inside an SEC-registered broker-dealer framework, and it connects to Prometheum's custody and, in the future, its ATS trading venue. Before committing, a traditional broker-dealer should test four things: whether the regulatory wrapper matches its own compliance obligations, whether custody and clearing are genuinely integrated, how far the trading leg actually extends today, and what client segments the offering can realistically serve.

Start with the regulatory structure, not the product list

Prometheum describes its network as an SEC-registered broker-dealer structure, and Prometheum Capital is described as the first SEC-registered special purpose broker-dealer and an SEC "Qualified Custodian." Those labels matter to a traditional broker-dealer because they determine how digital asset activity can be booked and supervised under existing U.S. securities rules rather than through a separate crypto-native arrangement.

What the materials do not specify is how responsibilities split between Prometheum and the introducing broker-dealer — for example, who owns client onboarding, who files what, and how supervisory reviews are shared. That division is the first thing to pin down in a diligence conversation, because it drives your compliance workload and your liability exposure.

Questions to put to Prometheum directly

• Which entity holds the client relationship, and which holds the assets?
• What does the introducing firm remain responsible for under its own supervisory procedures?
• How are digital asset positions reported and reconciled back to the introducing firm's books?

Check whether custody and clearing are one workflow or two

The site presents custody as "the foundation of digital markets" and positions correspondent clearing as the way traditional broker-dealers "offer and transact digital assets on behalf of their clients." The practical question is whether a client's asset sits in Prometheum Capital custody by default when clearing runs through Prometheum, or whether the two services are contracted separately.

This matters for a traditional firm because a split arrangement means two sets of operational procedures, two reconciliation paths, and potentially two sets of client disclosures. A single integrated workflow is simpler to supervise. Ask for a written description of the account structure and the movement of assets between custody and clearing before signing.

Understand how far the trading leg extends today

The page describes secondary markets trading for digital assets and refers to "Prometheum ATS' FINRA member and SEC-registered secondary market" as a future step — the wording places the ATS in the future tense. Correspondent clearing access and custody are presented as current services; secondary trading through the ATS should be treated as a roadmap item until confirmed otherwise.

For a broker-dealer evaluating the offering, that distinction changes the business case. If clients can custody and clear but not yet trade on the Prometheum venue, the near-term value is in holding and transferring digital assets through a regulated channel, with trading capability arriving later. Confirm the current status of the ATS in writing rather than relying on the site's forward-looking language.

Map the offering to your client base

Prometheum's infrastructure is described as supporting equities, debt, ETFs, mutual funds, money market funds, structured products, and other instruments as they move on-chain, alongside digitally-native securities, tokenized assets, and crypto. That breadth suggests the service is aimed at firms whose clients want exposure across both traditional and digital instruments, not only crypto-native clients.

A traditional broker-dealer should ask which of these asset types are supported at launch versus planned, and whether client eligibility is restricted by account type or jurisdiction. The materials do not state eligibility limits, so treat this as an open item.

Weigh the revenue case against the operational lift

The stated benefit — launching new revenue streams and staying competitive in digital markets — is a strategic argument, not a financial one. No pricing, fee schedule, or minimum volume appears in the available materials, so the economics cannot be assessed from the site alone.

A practical approach is to model the change against your current operations: new procedures for digital asset custody, staff training, client disclosure updates, and reconciliation between Prometheum's records and your own. If those costs are modest relative to the client demand you expect, correspondent clearing is a plausible way to add digital asset capability without building a custody stack. If your clients are not asking for digital assets yet, the case is weaker and waiting for the ATS to go live may be the better sequencing.

A reasonable next step

Request a written service description covering the entity structure, the custody-clearing account model, the current status of the ATS, supported asset types, and the fee schedule. Use those answers to decide whether to proceed with an indication of interest, which the site offers as the entry point for firms exploring the ecosystem.