Public markets, private equity, real estate, art, trusts — the data layer that handles everything a family office holds.

A family office's data lives in 20 places — mostly in spreadsheets. Snowflake is the consolidation layer that makes the whole wealth picture queryable in one place for the first time.

A typical family office holds wealth across a range of asset classes that span institutional and private markets: public equities at a custodian, private equity fund interests managed by an administrator, direct real estate held in LLCs, art and collectibles appraised annually, trust accounts at a trust company, charitable foundation assets, and operating business interests — each managed by a different professional, tracked in a different system, and reported on a different schedule.

The result is a family office staff that spends a meaningful portion of its time assembling spreadsheets that will be out of date before they are reviewed. Snowflake changes this. It provides a cloud data warehouse where every data source — regardless of asset class, vendor, or reporting format — lands, normalizes, and becomes queryable together. For how this fits into the broader landscape of wealth management data infrastructure, see our Snowflake for Financial Services pillar.

FO Data Lives in 20 Places — Mostly in Spreadsheets

The family office data landscape is uniquely fragmented compared to other wealth management firm types. An RIA's data challenge is multi-custodian reconciliation — multiple versions of the same type of data. A family office's challenge is multi-asset-class consolidation — fundamentally different types of data, from fundamentally different sources, with fundamentally different reporting cadences.

• Public markets custodian: Schwab, Fidelity, Pershing, or others — daily position files, nightly reconciliation

• Private equity administrator: Quarterly capital account statements, capital call notices, distribution notices — typically delivered as PDF or Excel

• Real estate accountant: Monthly rent rolls, property-level income statements, annual appraisals — typically in QuickBooks or a property management system

• Art and collectibles appraiser: Annual or event-triggered appraisal reports — typically PDF with no structured data feed

• Trust administrator: Northern Trust, BNY Mellon, or a boutique trust company — monthly statements, distribution records, tax allocation schedules

• Foundation or DAF custodian: Separate account, separate reporting, often at a different institution

• Operating business accountant or CFO: Monthly financials, ownership structure changes, dividend history

• Family bookkeeper: Personal expenses, household budgets, family member cash flow — typically in QuickBooks or spreadsheets

None of these sources share a common data format. Most deliver data as PDFs, Excel files, or proprietary portal exports. Assembling them into a consolidated net worth statement — let alone a performance report — requires manual extraction and normalization that consumes hours every month and introduces errors that are difficult to trace.

Spreadsheet-Driven Family Office

✕Monthly net worth assembly takes 2–3 days of staff time

✕Private asset values stale by weeks or months

✕Cross-asset allocation analysis done in Excel, error-prone

✕Tax projections rely on manually compiled asset data

✕New family member or trustee requires manual data export

✕No single audit-quality record of historical valuations

Snowflake-Driven Family Office

✓Net worth query runs in seconds from Snowflake

✓Private asset values updated on administrator delivery schedule

✓Asset allocation analysis is a Snowflake query, not a spreadsheet

✓Tax data lives in Snowflake alongside investment data

✓New parties receive a Snowflake share with scoped access

✓Full valuation history with source attribution stored in Snowflake

Public-Market Position Consolidation

For the publicly traded portion of a family's wealth — equities, fixed income, cash equivalents, ETFs, and liquid alternatives — Snowflake provides the same multi-custodian consolidation it delivers to RIAs and broker-dealers, but adapted for the family office context. A family office may hold public market assets at two or three custodians simultaneously: Schwab for the family's core investment account, Fidelity through a 401(k) or deferred compensation plan, and Pershing through a trust account. Snowflake normalizes position data from each custodian into a common schema — account, security, quantity, market value, cost basis — enabling a single consolidated view across all custodians.

For families with significant public market holdings, this consolidation enables analytics that the custodian portals cannot produce: aggregate exposure to a single issuer across all accounts and entities, concentration risk analysis relative to the family's overall net worth, and realized gain/loss reporting that spans accounts and custodians for tax planning purposes. For a deeper look at how Snowflake serves high-net-worth investors, see Snowflake for Asset Managers.

1

Consolidated view across all custodians and asset classes

20+

Typical number of data sources in a complex family office

0

Spreadsheets required for consolidated reporting

Private-Asset Tracking on Snowflake

Private assets — private equity fund interests, direct real estate investments, debt instruments, and hard assets like art and collectibles — are the most difficult part of a family office's data landscape. They do not have daily prices. They update infrequently. They are managed by parties who deliver data in inconsistent formats on inconsistent schedules.

Private Equity NAVs and Capital Activity

Private equity fund interests are tracked in Snowflake through a combination of capital account data and valuation records. When a fund administrator delivers a quarterly capital account statement — showing beginning NAV, capital calls, distributions, net income allocation, and ending NAV — that data is ingested into Snowflake as structured records with effective dates. The family office can then query current estimated value across all PE fund interests, calculate IRR against the history of capital calls and distributions, and model the projected impact of upcoming distributions on liquidity.

Real Estate Valuations and Income

Direct real estate holdings are tracked in Snowflake at the property level: each property has an estimated value (updated on appraisal or market trigger), a mortgage balance, monthly rental income, and operating expense history. The real estate data model in Snowflake supports multiple entities holding fractional interests in the same property — common in family LLC structures — and calculates each family member's or entity's proportional equity position.

Art, Collectibles, and Other Hard Assets

Art and collectible valuations are stored in Snowflake as point-in-time appraisal records: the appraised value, the appraiser, the appraisal date, and the asset description. When a new appraisal is received, it is added as a new record alongside the prior appraisals, so the history of value changes is preserved. The family's total art portfolio value — updated on the most recent appraisal for each piece — is available as a Snowflake query at any time, and can be included in consolidated net worth reporting alongside public and private market assets.

Data Architecture Insight

Point-in-Time Valuation Records

Snowflake stores private asset valuations as time-series records with effective dates — not as overwriting updates. This means the family office can query the estimated value as of any date, reconstruct historical net worth at any point in time, and produce the audit-quality valuation history that trustees and tax advisors require. Every valuation record carries a source attribution: which administrator, which appraiser, which system delivered the value and when.

Trust, Estate, and Tax Data

The legal and tax layer of a family office's data is often entirely disconnected from the investment data. Trust accounts are reported separately by trust administrators. Estate planning scenarios exist only in planning tool software. Tax data is assembled annually by an accounting firm from source documents gathered manually from a dozen different parties.

Snowflake provides the unification layer. Trust account data from Northern Trust, BNY Mellon, or a boutique trust company can be ingested into the same Snowflake account that holds the family's investment and private asset data. Trust accounting entries — distributions, income allocations, trust additions — appear alongside the investment data in a common entity structure. A query that asks "what is the aggregate net worth of the Smith family trust, including all investment accounts, real estate, and private equity interests allocated to the trust" becomes answerable from Snowflake without manual assembly.

Tax Data Integration

Tax planning for a complex family office requires understanding the tax character of every income and gain event across all entities and accounts. Snowflake stores realized gain/loss data from custodians, income allocations from trust and partnership K-1s, charitable contribution records from foundations, and depreciation schedules from real estate entities — all in a common structure that can be queried to produce estimated tax liability at any point in the year. This enables proactive tax planning rather than reactive tax filing. Snowflake Cortex can additionally be applied to this structured data to surface insights and projections — see Snowflake Cortex for Financial Services.

Sharing With Trustees, Tax Pros, and Next-Gen Family Members

A family office regularly needs to share financial data with external parties who are not full-time employees: a CPA firm preparing tax returns, a trustee reviewing trust account performance, a next-generation family member learning to engage with the family's financial picture, a foundation board reviewing endowment returns. Today, this sharing is done through emailed Excel files, PDF reports, and portal logins that give access to more data than needed.

Snowflake's data sharing model allows the family office to provision precisely scoped access for each external party. The CPA firm receives a share filtered to tax-relevant data — realized gains, income allocations, charitable contributions — for the entities they are responsible for. The trustee receives a share filtered to trust account data only. The next-generation family member receives a share filtered to their own beneficial interest across entities. Each share is live data, not a stale export, and the family office can revoke access instantly without any coordination with the external party.

For more on how Snowflake data sharing works in wealth management contexts, see Snowflake Data Sharing for Wealth Management.

01

CPA and Tax Advisor Access

Share filtered to tax-relevant records — realized gains, K-1 allocations, charitable giving — scoped to specific entities and tax years.

02

Trustee Reporting

Trust account data share provides trustees with live position and transaction data without requiring access to non-trust family assets.

03

Next-Generation Onboarding

Scoped share shows next-gen members their own beneficial interest — a starting point for financial education and engagement.

04

Foundation Board Access

Foundation data share filtered to endowment accounts, grant history, and spending policy compliance reporting.

Why Family Offices Are Late to Snowflake — and Why That's Changing

Family offices have been slower to adopt Snowflake than institutional asset managers, broker-dealers, and even many RIAs. The reasons are structural, not lack of awareness.

The Vendor Gap

Most Snowflake implementation partners and wealth technology vendors have built for institutional clients with large engineering teams. A family office with five staff members and no internal data engineers has no one to manage a custom Snowflake build — and no appetite to hire one. The vendor market has not historically offered a managed, pre-built Snowflake solution designed for the family office asset mix.

The Private Asset Problem

Snowflake connectors exist in abundance for public market data — custodian feeds are well-understood and pre-built by multiple vendors. Private asset data — PE fund administrator files, real estate property management exports, art appraisal PDFs — requires specialized ingestion logic that most implementation vendors do not have. Family offices cannot simply point a Snowflake connector at their private equity administrator and start receiving structured data; the ingestion and normalization work requires domain expertise in private asset reporting formats.

Why That's Changing

Two forces are converging to accelerate Snowflake adoption among family offices. First, the asset mix at sophisticated family offices has grown more complex — more direct investments, more fund-of-fund structures, more international assets — making the spreadsheet-and-portal approach unsustainable. Second, platforms like Milemarker now provide the private asset ingestion, multi-asset data model, and managed operations that family offices previously had to build from scratch. The infrastructure is now accessible without an internal engineering team. See also: What is a Wealth Management Data Platform and AI-Ready Data for Wealth Management.

Where Milemarker Fits

Milemarker provides the data infrastructure layer that family offices need to operate on Snowflake — without requiring internal data engineering resources or a multi-year build project. The platform is Snowflake-native: the family office's data lives in the family office's Snowflake account, managed by Milemarker's pre-built pipelines and data model.

Multi-Asset Data Model

Milemarker's family office data model includes first-class support for public equities and fixed income, private equity fund interests, direct real estate, trust and entity structures, and alternative assets. The schema handles the point-in-time valuation pattern that private assets require, the entity ownership hierarchy that trust and LLC structures demand, and the tax character tracking that tax planning requires — all in a single Snowflake schema.

Private Asset Ingestion

Milemarker handles the ingestion of private asset data — including PE fund administrator statements, real estate property reports, and other non-standard data sources — normalizing them into the family office data model. Where data arrives as structured files (Excel, CSV, PDF with structured layouts), Milemarker's ingestion layer handles extraction and loading. Milemarker augments the family office's existing vendor relationships rather than replacing them. For implementation timelines, see Snowflake Implementation for Wealth Management.

Consolidated net worth

• Spreadsheet / Portal Approach: Manual assembly, 2–3 days monthly

• Milemarker + Snowflake: Snowflake query, seconds to run

Private asset valuations

• Spreadsheet / Portal Approach: Manually entered from PDF statements

• Milemarker + Snowflake: Ingested via structured pipeline with source attribution

Cross-asset allocation

• Spreadsheet / Portal Approach: Approximated in Excel with manual inputs

• Milemarker + Snowflake: Calculated from live Snowflake position data

External party access

• Spreadsheet / Portal Approach: Emailed Excel, portal logins with broad access

• Milemarker + Snowflake: Scoped Snowflake shares with row and column controls

Historical valuation audit trail

• Spreadsheet / Portal Approach: Inconsistent, version-controlled spreadsheets

• Milemarker + Snowflake: Point-in-time records in Snowflake with full history

Tax data integration

• Spreadsheet / Portal Approach: Annual manual assembly from source documents

• Milemarker + Snowflake: Tax-relevant records in Snowflake alongside investment data

Frequently Asked Questions

Is Snowflake cost-effective for a small or mid-size family office?

Yes. Snowflake's consumption-based pricing means a family office pays only for what it uses. A single-family office with modest query volume — weekly consolidated reporting, quarterly private asset updates, ad hoc position queries — typically incurs $10,000 to $40,000 annually in Snowflake infrastructure costs. The larger cost consideration is implementation: building pipelines and a data model from scratch can cost $200,000 to $800,000 over 6 to 18 months. Milemarker's pre-built family office data model and integration library substantially reduce implementation cost. Contact Milemarker for a proposal based on the family office's specific asset mix and reporting requirements.

How does Snowflake secure sensitive family data — including private assets and trust structures?

Snowflake maintains SOC 2 Type II certification and encrypts all data at rest and in transit by default. For family offices, Snowflake's column-level security allows masking of highly sensitive fields — beneficial ownership details, valuation figures, family member data — so that specific roles or users see only the data they are authorized to see. Network policies restrict Snowflake access to approved IP ranges or VPN connections. Multi-factor authentication is enforced for all users. Snowflake's audit logging records every query — who ran it, when, and what data was returned — which satisfies the compliance and fiduciary documentation requirements many family offices face.

Who owns the Snowflake account — the family office or Milemarker?

The family office owns the Snowflake account. This is a core architectural principle of the Milemarker model: the family office's data lives in the family office's Snowflake account, not in a vendor-managed multi-tenant environment. Milemarker operates as a service provider with a governed connection to the family office's account — deploying pipelines, maintaining the data model, and monitoring data quality. The family office retains full control over access, data governance, and can disconnect Milemarker's access at any time without losing their data.

How does Snowflake handle private assets where valuations update quarterly or annually?

Snowflake stores private asset valuations as point-in-time records with effective dates, not as overwriting updates. When a private equity fund delivers a Q3 NAV statement, that valuation is recorded with an effective date of the statement date and held alongside prior period valuations. This allows the family office to query the current estimated value of a PE holding, review the history of valuation changes over time, and calculate IRR or TWR against the capital call and distribution history — all from a single Snowflake query. The data model also supports holding multiple valuations for the same period and marking each with a valuation source.

Can Snowflake connect to trust accounting and estate planning systems?

Yes. Trust accounting systems — including those from Northern Trust, BNY Mellon, and specialized trust administrators — typically export data via structured file formats or APIs that Snowflake pipelines can ingest. Estate planning and tax data from systems like Addepar or custom Excel/spreadsheet workflows can be loaded into Snowflake through structured ingestion. Once trust data is in Snowflake, it joins with the family's investment data, real estate data, and entity structure tables — enabling holistic queries that span trust and non-trust accounts.

How does a family office share data securely with external advisors?

Snowflake's data sharing model allows the family office to provision read-only shares for external parties — a CPA firm receives a share filtered to tax-relevant data, a trustee receives a share filtered to trust accounts, a next-generation family member receives a share filtered to their own holdings. Each share is defined with specific table access, row-level filters, and column-level masking. External parties access the share through their own Snowflake account or through a BI tool connected to Snowflake. The family office controls what each party can see and can revoke access instantly. No data is emailed. No spreadsheet is shared manually.

Why are family offices slower to adopt Snowflake than institutional investors?

Family offices have historically relied on specialized software, spreadsheets, and relationship-managed reporting from custodians and administrators. The combination worked at small scale. As families accumulate more asset classes, more entities, and more external relationships, the spreadsheet-and-portal approach breaks down — but the transition requires a family office to commit to a technology infrastructure project that most family office staff are not equipped to lead. Milemarker addresses this by providing the infrastructure, implementation expertise, and ongoing management so the family office team does not need to become data engineers.

What does Milemarker provide for family offices that a DIY Snowflake build would not?

A DIY Snowflake build for a family office requires: designing a multi-asset data model that handles equities, fixed income, private equity, real estate, alternatives, and collectibles; building ingestion pipelines for each custodian, administrator, and data provider; designing trust and entity structure tables; building performance calculation logic that handles illiquid assets correctly; and maintaining all of this as data sources change. Milemarker provides all of this as a pre-built platform — the family office accesses a production-ready Snowflake environment with a validated data model rather than a blank warehouse that needs to be built from scratch.

RELATED RESOURCES

Pillar Snowflake for Financial Services & Wealth Management By Segment Snowflake for RIAs By Segment Snowflake for TAMPs: The Multi-Tenant Data Layer Data Sharing Snowflake Data Sharing for Wealth Management Data Platform What is a Wealth Management Data Platform? AI Readiness AI-Ready Data for Wealth Management

Related guides

Part of the Snowflake for Wealth series:

• Snowflake for Financial Services & Wealth Management

• Migrating from On-Prem to Snowflake

• Snowflake vs Databricks for Financial Services

• Snowflake Cortex for Financial Services. AI Where Your Data Already Lives.

• Snowflake for RIAs

• Implementing Snowflake at a Wealth Firm: 8 Weeks vs 18 Months