Top 8 Eton Solutions Alternatives for Family Offices in 2026

Last updated: August 6, 2026.

Quick Answer

The best Eton Solutions alternatives in 2026 are Aleta (best overall for total wealth intelligence on an open, AI-native architecture), Archway (accounting-led operations with an outsourced back office), Masttro (closed consolidation platform with fixed, non-AUM pricing), Asset Vantage (integrated general ledger and reporting at mid-market pricing), Addepar (institutional investment analytics), SumIt (modern multi-entity general ledger), Asseta AI (operational accounting, banking, and bill pay), and FundCount (fund administration accounting).

Eton Solutions' AtlasFive is a genuine family office ERP, and the offices that look past it rarely do so on capability. They do so on fit: a 270-workflow suite priced and engineered for the very largest family offices, custom enterprise contracts reported from about $150,000 per year, deployments that typically run 6 to 9 months, and a closed architecture that keeps the office's data inside one vendor's ecosystem. This guide compares the eight strongest alternatives across two distinct paths: replacing the suite with another suite, or unbundling the functions into a best-of-breed stack built on open data.

Key Takeaways

• Eton Solutions alternatives are chosen on fit, not capability: AtlasFive's 270-workflow scope exceeds what most offices use, entry pricing is reported from about $150,000 per year, deployments typically run 6 to 9 months, and the closed all-in-one architecture keeps consolidated data inside the suite.

• There are two ways to replace a family office ERP: adopt another integrated suite (Archway, Asset Vantage), or unbundle into a best-of-breed stack: an open wealth platform for reporting and intelligence, paired with a general ledger, from family office specialists such as SumIt and Asseta AI to general systems such as QuickBooks, Sage, NetSuite, and Xero. The 2026 shift is toward unbundling, because AI agents require open data.

• Aleta is the best alternative for most family offices: a verified total wealth view for the principal, deep investment reporting for the team, daily reconciled data from a dedicated Data Management Team, and open API, MCP, and Data Cube access, live in 4 to 8 weeks from $1,000 per month. It was named Best Consolidated Reporting at the WealthBriefing Awards 2026 and Best Data Provider at the Family Wealth Report Awards 2026.

• An unbundled stack of Aleta plus a general ledger, whether a family office specialist such as SumIt or Asseta AI or a general system such as QuickBooks, Sage, NetSuite, or Xero, all of which Aleta integrates with, covers the functions most offices actually use an ERP for, without ERP cost, timeline, or lock-in.

• Investment-led offices weighing Addepar should model its structure first: single family office entry pricing from about $70,000 per year rising on an AUM basis, implementations of 6 to 12 months, and a required service layer.

• EtonAI automates real work, and it operates inside a closed suite. The 2026 buying question is whether the office's own AI agents and BI tools can query the wealth data directly through open APIs and MCP.

What is Eton Solutions?

Eton Solutions is a family office software and services company founded in 2015 to commercialize technology originally built inside a large multi-family office, based in Research Triangle Park, North Carolina, with an international headquarters in Singapore.

Its flagship platform, AtlasFive, is a family office ERP connecting data, services, and stakeholders across more than 270 operational workflows: data aggregation, entity management, portfolio reporting, general ledger, fund and trust accounting, bill pay, transaction processing, tax ledger, and private loan management.

The company reports more than $1.3 trillion in assets under administration for more than 800 families, raised a $58 million Series C in July 2025, and embeds an AI layer, EtonAI, formerly EtonGPT, across the suite. Its published figures imply an average client relationship above $1.5 billion, which places its primary market at the very top of the family office tier.

For a very large office that wants one vendor running every operational and lifestyle function, that breadth is a genuine strength. The reasons offices evaluate alternatives are structural: whether the office needs that much platform, what the bundled model costs over five years, how long the deployment runs, and whether the data remains usable outside the suite.

Why Do Family Offices Look for Eton Solutions Alternatives?

Four structural reasons dominate: functional scope beyond actual need, a closed all-in-one architecture, enterprise cost and timeline, and an operations-first design.

• More platform than the office uses: A 270-workflow ERP is built to run every function of the office, and most offices run a fraction of it. The unused workflows are not free: they are paid for in license scope, implementation effort, and ongoing administration.

• Closed all-in-one architecture: AtlasFive offers reporting APIs and a Power BI connection for data held in the suite, but it is designed as a self-contained system of record, not as an open hub. Consolidated data is hard to route into specialist general ledger, tax, BI, and AI tools, which blocks the best-of-breed stack many offices now want to build.

• Enterprise cost and timeline: Eton publishes neither pricing nor implementation timelines. Entry pricing reported in client evaluations starts around $150,000 per year, the bundled model adds a services relationship on top, and deployments of this ERP scope typically run 6 to 9 months. Eton's published averages put its typical client relationship above $1.5 billion, and offices below that tier carry pricing and complexity sized for a larger operation.

• Operations-first, not principal-first: The platform serves the accounting and operations team as its primary user. The principal and family members consume outputs from it rather than working in a view designed for them, which is the inverse of how a growing share of offices now select software.

Two Ways to Replace a Family Office ERP

There are two ways to replace a family office ERP: adopt another integrated suite, or unbundle the functions into a best-of-breed stack built around an open wealth platform and a specialist general ledger.

The suite path swaps one integrated system for another: Archway for accounting-led offices that want an outsourced back office, Asset Vantage for an integrated ledger and reporting system at mid-market pricing. The trade-offs travel with the category: closed data, scoped implementations, and a single-vendor relationship. The unbundling path splits the ERP into its two real jobs. A wealth platform handles consolidation, reporting, and the principal view, the category where Aleta, Masttro, and Addepar compete, with Aleta the open, AI-native option. A general ledger serves as the accounting system of record, whether a family office specialist such as SumIt or Asseta AI or a general system such as QuickBooks, Sage, NetSuite, or Xero, all of which Aleta integrates with. The distinction between the accounting engine and the intelligence layer is becoming the organizing principle of the modern family office stack, and it is the path the market is moving toward in 2026, because AI agents require open, structured data to be useful.

The 8 Best Eton Solutions Alternatives in 2026

1. Aleta: Best Overall for Total Wealth Intelligence on an Open, AI-Native Architecture

Aleta is a wealth intelligence platform headquartered in New York with offices in Denmark and Bangkok, born inside a family office and built on more than 15 years of total wealth reporting expertise. It monitors more than $100 billion in assets, processes over a million transactions a year, connects to more than 100 integrations, and is SOC 2 Type II certified.

Where AtlasFive aims to run every function of the office, Aleta concentrates on the layer that shapes the most decisions. A dual-engine design gives the principal a verified, real-time picture of total wealth on any device and gives CIOs, CFOs, and analysts full consolidated reporting with TWR, IRR, and MOIC, both engines running on one reconciled data set kept accurate by a built-in double-entry investment general ledger.

A dedicated Data Management Team reconciles data from banks, custodians, and private market sources every day, so data quality does not depend on the office's own staff capacity. The platform was named Best Consolidated Reporting at the WealthBriefing Awards 2026 and Best Data Provider at the Family Wealth Report Awards 2026.

Private market documents are handled by the AI Reader in the Aleta Intelligence suite: capital calls, distributions, NAV statements, and K-1s are read, mapped to the correct entities, and booked automatically, replacing a workflow that typically consumes 10 to 20 hours of operations time per month in an office receiving 50 to 100 documents. The same data powers forward cash flow forecasting for liquidity planning.

The architecture is open: the Data Cube, documented APIs, and MCP support let the office pipe reconciled wealth data into its own BI tools, feed general ledgers from family office specialists such as SumIt and Asseta AI to general systems such as QuickBooks, Sage, NetSuite, and Xero, and run its own AI agents. Pricing is transparent SaaS from $1,000 per month based on entities and complexity rather than assets, and implementation typically takes 4 to 8 weeks.

Strengths:

• Total wealth for the principal and professional-grade reporting for the team, on one reconciled data set with daily managed data quality.

• AI-native private markets operations: automated document booking plus forward capital call and distribution forecasting built on an institutional-grade cash flow model.

• Open architecture with no AI lock-in: API, MCP, and Data Cube access, so the office's own agents and BI tools work on its own data.

• Live in 4 to 8 weeks from $1,000 per month, priced independent of assets under management.

Limitations:

• Not an operational ERP: the built-in double-entry general ledger covers investment accounting across entities and currencies, but payroll, AP/AR, and operational accounting for non-investment business entities sit with a specialist ledger partner.

• Lighter lifestyle administration: household staff management and personal administration tooling are outside its scope.

Verdict:

Choose Aleta if the office's priority is total wealth clarity, investment intelligence, and an open, AI-ready foundation. It anchors the unbundled path: pair it with a specialist general ledger and the combination covers what most offices actually use an ERP for, live in weeks. See the detailed Eton Solutions vs. Aleta comparison.

2. Archway: Accounting-Led Operations with an Outsourced Back Office

Archway is a family office technology and outsourced services business built around the Archway Platform, a general ledger engine that powers accounting, investment management, and reporting for ultra-high-net-worth families and financial intermediaries. In 2025 Aquiline acquired the business from SEI for $120 million, announced in February and closed on July 1, returning it to independent operation under the Archway name with Anthony Abenante as CEO. As of December 31, 2024 the platform carried $723 billion in assets.

Archway is the closest like-for-like alternative to Eton on operational depth: one ledger-centered system, bookkeeping and bill pay run through the vendor's own service teams, and a long institutional track record with large offices.

Strengths:

• A general ledger engine proven on the most complex family structures, with reporting built on the books.

• An outsourced back-office model for offices that want operations handled rather than staffed.

• Institutional scale and continuity, now with a dedicated owner investing in the standalone business.

Limitations:

• Closed, accounting-centered architecture: data serves the ledger and its reports rather than an open stack of external BI, ledger, and AI tools.

• Service dependency: the outsourced model that removes operational burden also deepens the vendor relationship and raises switching costs.

• Not positioned as AI-native, and implementation is an enterprise project scoped to the engagement.

Verdict:

Choose Archway if accounting is the center of the technology decision and outsourcing the back office is the goal. It shares Eton's closed, operations-first character, so offices seeking open data and AI-ready architecture are choosing between suites rather than escaping the category.

3. Masttro: Closed Consolidation Platform with Fixed, Non-AUM Pricing

Masttro, founded in 2010 and headquartered in New York with offices in Zurich, Monterrey, Mexico City, and Santiago, is a consolidation and reporting platform in the same category as Aleta and Addepar rather than an operations suite. It consolidates liquid and illiquid assets, liabilities, and lifestyle holdings for UHNW families across more than 600 direct custodian feeds, and there is no ERP-scope general ledger at its core, so it replaces Eton's reporting ambition, not its operations. The fixed annual license, not tied to assets under management, and the October 2025 launch of Masttro Intelligence, an agent layer with document AI and a natural language assistant operating inside the platform, define its current pitch.

Strengths:

• Consolidation across intricate multi-jurisdiction ownership structures, including lifestyle and passion assets.

• A fixed license that does not grow with the portfolio, and a premium managed service model.

Limitations:

• Not an operational replacement for an ERP: accounting, bill pay, and tax workflows sit outside its scope.

• A closed platform with custom premium pricing and implementations frequently reported at six to nine months for complex setups; consolidated data is hard to reuse in external tools.

Verdict:

Consider Masttro if the requirement is consolidation and presentation for a dynastic, multi-jurisdiction family rather than operations, and a closed platform is acceptable. See the Masttro vs. Aleta comparison.

4. Asset Vantage: Integrated General Ledger and Reporting

Asset Vantage, founded in 2011 with offices in the US, India, and Singapore, integrates a native dual-entry general ledger with investment reporting generated from the same books. It tracks more than $400 billion for over 400 families, and its transparent pricing from about $30,000 per year, not based on assets, positions it as the mid-market integrated suite: a fraction of ERP cost for the accounting-plus-reporting core.

Strengths:

• One system for the ledger and the reports, with audit-ready controls across entities and currencies.

• Transparent, non-AUM pricing well below enterprise ERP contracts.

Limitations:

• Analytics are derived from ledger entries rather than a dedicated reporting engine, which limits performance attribution, private markets forecasting, and the principal view.

• No AI-native architecture or automated document parsing, so data entry remains manual, and the suite keeps data largely inside the accounting system.

Verdict:

Choose Asset Vantage if the office is accounting-led, wants ledger and reporting integrated, and does not need ERP breadth. Offices that lead with investment intelligence or want open, AI-ready data will find both secondary here.

5. Addepar: Institutional Analytics for Investment Teams

Addepar, founded in 2009, is the trade in the opposite direction: where Eton is operations-first, Addepar is analytics-first, with performance attribution, risk decomposition, and scenario modeling across complex portfolios. As of 2026 it reports more than 1,400 client firms in 60 countries and $9 trillion on the platform. It is not an operational system: there is no ERP-scope general ledger, bill pay, or tax workflow, so it replaces Eton's reporting ambition, not its operations.

The structure deserves the same scrutiny as any enterprise contract. Entry pricing for a single family office starts at about $70,000 per year and rises quickly on an AUM basis, with analyst coverage from Contrary Research reporting 1.2 to 1.5 basis points, implementations commonly run 6 to 12 months, and the platform requires a service layer staffed through partners or the office's own team. Its AI, the Arcus acquisition, the Addison assistant, and the Addepar Data Exchange, is layered onto a data schema originating in 2009 and operates inside the ecosystem.

Strengths:

• Institutional-grade performance and risk analytics, proven at very large scale.

• A broad custodial data network and an established integration ecosystem.

Limitations:

• AUM-based pricing that grows with markets, a 6 to 12 month implementation, and a dedicated administrator as a de facto staffing requirement.

• Analyst-first design and a closed data ecosystem; the AI additions answer questions inside the suite rather than opening the data to the office's own agents.

Verdict:

Choose Addepar if the office is investment-led, needs institutional analytics depth, and has the team and budget to operate it. For the full comparison of structure and pricing, see the Addepar alternatives guide.

6. SumIt: Modern Multi-Entity General Ledger

SumIt, founded in 2022, is a general ledger built by family office professionals for family offices. Its core is multi-entity accounting: trusts, LLCs, and holding companies consolidated with automated intercompany eliminations and one-click consolidated reporting, with AI-assisted transaction categorization and SOC 2 Type II certification. It connects to Aleta for reconciled wealth and investment data, and announced integrations with BILL for payments and Addepar in March 2025. The company serves more than 80 families across roughly 50 clients, and pricing is custom, scaled by entity count.

Strengths:

• Purpose-built multi-entity architecture that cuts time-to-close from weeks to days for complex structures.

• Modern interface and API connectivity, designed to sit inside a best-of-breed stack rather than replace it.

Limitations:

• Deliberately narrow: accounting workflows only, with no investment performance reporting, principal view, or total wealth layer.

• A young company; offices with deep fund accounting or trust accounting requirements should validate coverage.

Verdict:

Choose SumIt as the accounting system of record in an unbundled stack. Paired with a wealth intelligence layer such as Aleta, it replaces the ledger half of an ERP with a system finance teams actually like using.

7. Asseta AI: Operational Accounting, Banking, and Bill Pay

Asseta AI is an operations platform for the family office back office, combining a general ledger with integrated banking, bill pay, and cash management in one system. Its focus is the daily financial workflow: automated intercompany transactions, liquidity and payments management, and the audit-ready controls CFOs require, with AI applied to the high-volume processing that consumes back-office capacity. It integrates with Aleta, which frequently sits above it as the wealth intelligence layer on the same data.

Strengths:

• Ledger, banking, and payments in one operational engine, built for financial controls and auditability.

• Automation of intercompany and high-volume transaction work that generic accounting software handles poorly.

Limitations:

• An operations engine, not a wealth platform: no total wealth view, investment analytics, or principal experience.

• A newer entrant; verify coverage for the office's specific accounting and jurisdictional requirements.

Verdict:

Choose Asseta AI as the operational engine of a best-of-breed stack: it runs the books, banking, and bill pay, while an open wealth platform delivers the intelligence layer on top of the same data.

8. FundCount: Fund Administration Accounting

FundCount, founded in 1999, is an accounting engine for fund administrators, hedge funds, and investment firms, unifying partnership accounting, portfolio accounting, and a real-time general ledger with multi-book support under GAAP and IFRS. It has recently added an AI assistant. Family offices run it, but the product's premise is fund administration: the workflows, interface, and operating assumptions are an accountant's, and the family office use case is an adaptation rather than the design center.

Strengths:

• Partnership accounting depth across master-feeder and nested structures, with reports generated from the books.

• Multi-currency, multi-book accounting under both GAAP and IFRS.

Limitations:

• Built for fund administration, so the principal view, total wealth consolidation, and family office operations are outside the design.

• A dated interface and an operating model that assumes accounting expertise on staff.

Verdict:

Choose FundCount for fund administration and partnership accounting contexts. As a family office ERP replacement it falls short by design: the accounting engine was built around fund workflows, so the principal view, total wealth consolidation, and day-to-day family office operations would all have to be assembled elsewhere.

How to Choose an Eton Solutions Alternative

Six questions separate the shortlist.

Suite or Stack?

Decide first whether the office needs every function in one system, or the wealth layer done well plus specialists for the rest. This single decision eliminates half the market and determines cost, timeline, and data architecture downstream.

Which Workflows Does the Office Actually Run?

Audit current usage before buying scope. An office using a fraction of a 270-workflow ERP is paying enterprise pricing for shelf space; match the platform's footprint to the functions the team actually operates.

Can Your Own AI Reach the Data?

Ask when the data schema was designed and whether the platform exposes documented APIs and MCP support. Automation inside a vendor's suite is a feature; open, structured data your own agents can query is an architecture, and the difference determines what the office can build in 2026.

Who Is the Primary User?

An ERP serves the operations team, and the principal consumes outputs secondhand. If the family needs to read and act on the numbers directly, the principal experience is a requirement.

Model the Five-Year Total

Compare license plus services layer plus implementation plus internal staffing. An enterprise ERP reported from about $150,000 per year, plus a bundled services relationship, sets the benchmark; price the suite path and the unbundled stack against it over five years.

Make Time-to-First-Report Contractual

Deployments of ERP scope typically run 6 to 9 months; focused platforms deploy in weeks. Whichever path the office chooses, put the first reconciled report in the contract so the timeline carries consequences.

Methodology and Sources

This guide is designed to give family office principals, CIOs, CFOs, and operations leaders an objective, data-driven evaluation of the primary alternatives to Eton Solutions in 2026.

Inclusion and Exclusion Criteria

We focused on platforms family offices genuinely cross-shop against an operations ERP: integrated suites (Archway, Asset Vantage), consolidation and reporting platforms that replace Eton's reporting ambition (Masttro, Addepar), specialist general ledgers that anchor the unbundled path (SumIt, Asseta AI), and the fund accounting engine that appears on accounting-led shortlists (FundCount). Light wealth trackers and investment data platforms were excluded because an ERP evaluation is operations-led, keeping the comparison like for like.

Evaluation Framework

Each platform was evaluated across six dimensions: functional scope against actual usage, data architecture and openness (APIs, MCP, and data portability), AI architecture (native foundation versus automation inside a closed suite), user experience for the principal versus the operations team, five-year total cost of ownership including services and staffing, and deployment efficiency with time to first reconciled report.

Data Sources

Findings draw on public product documentation from each vendor, funding and transaction announcements (including Eton Solutions' $58 million Series C in July 2025 and Aquiline's $120 million acquisition of SEI's Family Office Services business, closed July 1, 2025, with $723 billion on the Archway Platform as of December 31, 2024), analyst coverage of Addepar's pricing from Contrary Research, verified user reviews, and Aleta's direct experience in family office platform evaluations and migrations, which is the basis for the reported Eton entry pricing of about $150,000 per year, the 6 to 9 month deployment range, and the Addepar single family office entry point. Reported figures are attributed to their sources. Last updated July 31, 2026. Reviewed quarterly.