
Fragmented Plumbing
Every manager, administrator and distributor connects bilaterally. Each stakeholder operates their own legacy systems, their own paperwork, and their own processing requirements for financial instructions.
Private capital markets have scaled into the trillions on infrastructure built for a handful of bilateral relationships. Primexys is building the neutral, member-governed network that moves instructions, cash and data between every participant — securely, instantly and on one shared record.

Every manager, administrator and distributor connects bilaterally. Each stakeholder operates their own legacy systems, their own paperwork, and their own processing requirements for financial instructions.

Today, legacy infrastructure is struggling to keep pace with the rise of semi-liquid funds and retail investors. Subscriptions and redemptions take days to process. Cash is trapped in transit between siloed systems, while markets move.

Today's paper-based infrastructure was never designed to serve 2,000+ clients investing $50K each. As volumes and complexity grow, legacy infrastructure creates operational risk and friction, making processes time-consuming and expensive.
Disconnected and fragmented
Six parties touch the same fund — while six systems maintain their own records. Fund managers, custodians, transfer agents, regulators, depositaries and fund administrators all connect bilaterally, reconciling the same data across IBOR, ABOR, CBOR, PBOR, TBOR, asset and unit registers that never quite agree.
Fund ManagerIBOR
Prime Broker or CustodianCBOR
Transfer AgentUnit Register
Regulator
DepositaryPBOR / Asset Register
Fund AdministratorABOR
Distribution / Wealth PlatformTBORSeparate systems in between
Capital is flowing to private markets, creating new opportunities and considerations for a wider range of investors and companies. This shift is changing not only who invests in private markets, but also how private funds are structured, distributed, transacted, serviced and settled. The priority is to build scalable infrastructure and distribution capabilities that enable asset managers to onboard more investors, expand distribution, grow assets under management and reduce the cost of servicing each investment — without a corresponding increase in operational headcount or complexity.
Flexible alternative fund
Ongoing subscriptions and periodic liquidity
UK and EU-wide marketing passport
A scalable route to market
The smaller the ticket, the higher the cost to serve for each $1mn raised. In a manual environment, onboarding costs can eat into the management fee before capital is even deployed. Here’s the same $50mn raised two ways:
| Raised by | Institutional investors | Private wealth investors |
|---|---|---|
| Commitment amount | $50M | $50M |
| Ticket size | $10M-$50M | $10k-$50k |
| Investor count | 1-5 (pension fund) | 1,000+ (individual investors) |
| KYC checks needed | 1-5 (Low frequency) | 1,000+ (High volume) |
| Reporting | Periodic | Continuous, digital-first |
| Cost to serve | Fixed and manageable | Scales rapidly if manual |
Larger institutional commitments or smaller individual investments. The capital raised is identical; the onboarding work behind it is not.
Headcount-led operations rise with every investor added. Digital, automated rails hold the cost of servicing each one flat.
Primexys provides a shared, standardized infrastructure layer for the post-investment lifecycle of alternative assets, replacing fragmented bilateral connectivity while reducing complexity and risk and mutualizing operational costs across participants.

Integrate once and connect to all counterparties across the network through multiple connectivity options — a single source of truth helps managers track onboarding, transactions, capital activity, reporting, and servicing across channels.

Connect order routing and settlement orchestration processes, providing fund managers, transfer agents and distributors with real-time visibility of their fund orders and settlement positions.

Every instruction is ISO 20022-native, enabling consistent, interoperable financial communication across markets and infrastructures.
Provides transaction reporting, including standardized Statements of Holdings and Statements of Transactions across connected counterparties and market infrastructures.
Market participants and market infrastructure connect to one platform core through standardized, ISO 20022 native messaging.
Market Participants

Fund Transaction Processing
Fund Events & Asset Servicing
Data & Identifiers
Transaction Routing & Orchestration
Clearing & Settlement Coordination
ISO 20022 native messaging
Market Infrastructure
The investor's request is checked for suitability and KYC, then the distributor sends one standardized subscription instruction to FundStream, which validates and routes it to the transfer agent.
T
Order captured and routed
Innovation / Infrastructure
Intelligent transaction validation, routing and lifecycle orchestration.
$0T
TAM — By year-end 2023, alternatives accounted for 21% of AUM (Source: Ernst & Young)
$0B
SAM — US Evergreen (Semi-Liquid) Funds Held in Private Markets (Source: Morningstar, PitchBook - Sept. 15, 2026)
$0B
SOM — Addressable Trailing 12-Month Net Inflow Volume (Source: Morningstar Direct, SEC Filings - March 31, 2026)
U.S. evergreen funds reached a record $653 billion in Q2 2026, up from $205.5 billion three years ago, across 560+ U.S.-registered funds.
Direct lending and alternative credit funds dominate the space, while infrastructure funds delivered the strongest returns through April 2026.
¹ Sources: Morningstar & PitchBook · Geography: US. Data aggregated on June 10, 2026; disclosure documents range from September 30, 2025, to March 31, 2026.
² Source: Morningstar & PitchBook · Geography: US · As of June 1, 2026. Data excludes non-40-act funds.
Leadership from global custody, transfer agency and fund administration.
Builders of high-availability messaging infrastructure at institutional scale.
Specialists in market standards, financial-crime controls and regulatory engagement.
FundStream is being built alongside the private fund community. Join us in shaping the future of private fund infrastructure. Help us to define common industry standards and shared post-investment network infrastructure.
The community helps set the governance, standards, and capabilities.