SEI – Archway Platform℠

SEI’s Archway Platform℠ and outsourced services streamline the accounting, investment data aggregation and reporting operations of family offices and financial institutions.

SEI Family Office Services supports the accounting, investment data aggregation and reporting operations of family offices, private banks, private wealth advisors and alternative asset managers. Designed to help family offices and advisors to wealthy families better serve their ultra-high-net-worth clients, SEI’s award-winning Archway Platform℠ and high-touch outsourced services efficiently handle complex partnership, portfolio and corporate accounting alongside bill payment, investment management and multi-asset class data aggregation.

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What sets SEI’s Archway Platform apart?

"The foundation of our culture at SEI Family Office Services is based on a mix of creativity and the mastery of details required to build innovative wealth management solutions."
Chelsea Francis


Get an overview of what this software does.

Main tasks

  • Accounting
  • Consolidated reporting
  • Compliance (e.g. AML, KYC, regulatory reporting)
  • Portfolio management
  • Data aggregation
  • Ownership look-through

Top features

  • Customizable chart of accounts
  • Flexible, automated multi-level reporting including financial statements, allocation, holdings, performance and risk reports
  • Partnership, investment and corporate accounting
  • Look-through for complex nested ownership structures
  • Cash management including transfers and gifting
  • Consolidated net worth tracking across assets, accounts, custodians, geographies and currencies
  • Alternative investment tracking and reporting
  • Accounts payable including bill payment
  • Flexible delivery options (SaaS, outsourced, hybrid)

Assets supported

  • Bankable assets
  • Private equity
  • Real estate
  • Rare collectibles (e.g. luxury cars, boats, high-value jewelry)
  • Hedge funds
  • Fixed income
  • Derivatives
  • Personal assets
  • Operating companies


  • Highly configurable application to support multiple regulatory compliance frameworks


  • Yes

Type Of Software

  • Serviced software
  • SaaS


  • Proprietary


  • Data enrichment sources
  • Banks custodians
  • brokerage firms
  • Order management systems
  • Data warehouses
  • Pricing sources
  • Third party data aggregators
  • CRM systems
  • Industry-specific software (oil & gas, property management, manufacturing, etc.)
  • Tax software
  • Financial planning tools

Mobile App

  • Yes

Type of data

  • Transaction level


  • Features direct data feeds with banks, custodians and pricing sources that automatically bring financial data into the system on a nightly basis. Once data is aggregated in the system, users have access to automated reconciliation tools for account balances, positions.


  • 80+

Time to new custodian

  • 1-3 weeks


  • Set multiple base currencies
  • Separate holding level gain/loss from currency gain/loss
  • Based on holding/position data
  • Based on transaction data

Cost structure

  • Feature based
  • Entity/complexity based

Key Company Info

Have a look at the company, clients and references to learn whether this is a match for you.


  • 500+


  • $1.92 billion


  • 1968


  • Owned by a larger corporation


  • United States of America


  • Indianapolis
  • Denver
  • Chicago
  • San Francisco
  • Malvern
  • Oaks
  • New York
  • Toronto
  • Hong Kong
  • Dublin
  • Johannesburg
  • London
  • New Delhi

Top markets

  • States of America
  • United Kingdom

Total AUM

  • $555 billion (assets on the Archway Platform)

Avg. AUM per client

  • $1 billion+ (based on users of the Archway Platform)


  • Single-family offices

Serves also

  • Individual wealth owners
  • Multi-family offices
  • Financial advisors
  • Fund managers
  • Banks


  • 225

Available on request

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Support & Services

Learn what support and services you can expect

Support options

General contact mail or phone
Dedicated contact
In person on site support
Product support portal

Pricing of support

Product support is included in the product subscription cost.


Implementation timelines can take anywhere from 3-6+ months depending on the complexity of the client.


Certain customizations are available.

Bespoke development

All clients receive annual major upgrades to the platform including new features, functionality and reporting options
System enhancement requests
Custom report development
Data connectivity

Added services

Data entry
Book keeping
Software development
Bill Payment
Partnership accounting
Consolidated client reporting

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FAQs about SEI – Archway Platform℠

What is SEI?
SEI is an investment management company.
What does SEI do?
SEI provides investment processing, management, and operations solutions to clients across the globe.
How does SEI’s Archway Platform work?
SEI’s Archway Platform and outsourced services streamline the tedious portfolio and corporate accounting, multi-asset class investment data aggregation, and consolidated reporting operations for family offices.