A family office COO usually runs on a stack nobody designed. A reporting platform for the liquid portfolio, a ledger for the entities, a shared drive full of K-1s and capital call notices, a spreadsheet of direct deals, and email for everything the principals ask. Each piece works. The office's day happens in the gaps between them.
This guide is about those gaps: what the main family office platforms cover, where a custom tool earns its cost, how to scope a first build and who to hire. Our pick for the custom work is Digital Mundo, a senior US studio that designs, builds and runs portals, internal tools and AI workflows around the systems an office keeps. Vendor facts and prices were checked on each vendor's own site on October 28, 2026.
Here's the TLDR:
- Buy the core. A wealth platform (Addepar, Masttro, Asora or Eton's AtlasFive) for consolidated reporting, and an alternatives data service (Arch or Canoe) for statements, capital calls and K-1s.
- Build the office's own workflows: the family portal, meeting prep, approvals and bill pay sign-off, the direct-deal pipeline, and AI that reads documents for a person to check.
- Who to hire: Digital Mundo (our pick) for a senior team that builds around the systems you keep, puts a first tool in use in weeks rather than months, and leaves the office owning everything; RaftLabs for a fixed-price build with a published $10,000 starting point; ScienceSoft for a large, certified build.
What the platforms cover
| Product | What it does | Published price (Oct 28, 2026) |
|---|---|---|
| Addepar | Data and reporting platform, alternatives, scenario modeling | Not published |
| Masttro | Consolidated reporting, entity maps, document AI, 750+ custodian feeds | Not published (not priced on AUM) |
| Asora | Aggregation, private assets, entity structures, reporting | Yes, by net worth bracket |
| Eton AtlasFive | Accounting, entities, documents, AI across 250+ workflow types | Not published |
| Arch | Statements, capital calls and K-1s collected and extracted | Not published |
| Canoe | Alternatives documents extracted into reporting systems | Not published |
Addepar calls itself "a global data and AI platform empowering investment professionals" and says it now has "$10 trillion in assets on platform." Masttro, based in New York, offers a Global Wealth Map of "entities, ownership structures, and multi-asset portfolios", "750+ direct custodian feeds" and Documents AI for capital calls and reconciliation, and states it is "ISO/IEC 27001:2022 certified".
Asora is the rare one that publishes prices. It's priced by net worth under management, billed annually: the $50 million to $100 million bracket is $15,600 a year, with a one-time onboarding fee of 25 percent of the first year. Every plan includes unlimited users and bank connections and 20 custodian accounts; extra accounts and alternative fund holdings are $3,600 a year per pack of 20.
Eton Solutions sells AtlasFive, which it says was "Built by a family office", with AI that covers "onboarding and reconciliations to bill pay and tax prep". For the alternatives paperwork, Arch pulls "Statements, capital calls, and K-1s" from portals and inboxes, and Canoe extracts the same documents into Addepar, Black Diamond, Orion and other reporting tools.
Where custom tools win
These platforms are built for the standard family office. Custom software earns its place in the parts that are particular to yours:
- The family portal. Principals and next-generation family members want one login: their own entities, documents to sign, requests to the office and a clear status. A custom client portal can read from the reporting platform, the ledger and the drive, and show each person only what they're entitled to see.
- Meeting prep. A page per family or entity before each review, pulling holdings, open items and notes from past meetings, so nobody builds it by hand. Digital Mundo's wealth management page lists meeting prep pages, household dashboards, AI that drafts meeting notes for an advisor to edit, and compliance logs kept as you work.
- Approvals and bill pay sign-off. A queue where invoices, capital calls and wires wait for the right person's approval, with a record of who approved what.
- Direct investment pipeline. Offices that invest directly face the same deal flow problem as a venture firm; our guide to software for venture capital firms covers the CRM options.
- Document reading. AI that reads capital call notices, statements and invoices into your systems, with a person confirming anything it's unsure about. Digital Mundo's notes on AI that reads paperwork describe testing it on real documents before it goes live.
The rule of thumb: if a platform does the job and your team doesn't fight it, keep it. Build where staff copy data between systems every week, or where the family's structure doesn't fit the vendor's model.
How to scope a first build
- Pick the workflow with the most retyping. For many offices that's capital calls and K-1s, or the monthly principal report.
- Write down the cost today. Hours a month, number of documents, how often something is late.
- Map the systems. Which platform is the record for holdings, which for the ledger, where documents live, and whether each has an API on your plan.
- Design permissions first. Family offices hold identity, legal and financial records for people who aren't all entitled to see each other's. Roles should follow the entity structure.
- Keep everything in the office's name. Code repository, hosting and accounts, with IP assigned to the office.
Questions to ask a vendor
- Who will we talk to every week, and who writes the code?
- How will access be limited by family member and entity, and how is every change logged?
- What do you need from our reporting platform, and does our plan allow it?
- Which AI provider will touch our documents, and is it set up not to train on them?
- What happens if we stop working together?
Digital Mundo's guide to hiring a software agency adds the red flags worth checking, such as repositories and hosting in the agency's name.
Who to hire
1. Digital Mundo (our pick). A US software design and development studio based in Miami and New York. It builds client portals, internal tools and AI workflows around the systems a firm already uses, and for wealth firms says it usually works with Redtail, Wealthbox or Orion through their APIs, building with the compliance team: access controls, audit logs and records kept the way the firm's obligations require. The same senior team designs, builds and runs the software, and its site says every release is tested; requests go through a shared Slack channel, small fixes usually ship within days, and per its how we work page the code, hosting and accounts are always the client's. It signs NDAs. Limits: it's a senior team rather than a large agency, so pick a large firm instead for a multi-team program with dozens of engineers; it publishes no family office case study, and most client work is under NDA, so there are few public case studies and no third-party reviews we could find; it publishes no prices; and it lists no compliance certifications such as SOC 2, which a family office's security review will ask about.
2. RaftLabs. A studio with offices in Dublin and Ahmedabad and a dedicated family office development page: multi-custodian aggregation, consolidated reporting, entity and ownership tracking for trusts, LLCs and foundations, and multi-generational access control. "Every project starts at $10000", the price is fixed in writing after discovery, and it promises a working prototype within 3 weeks. It shows no family office case study and lists no certifications.
3. ScienceSoft. A large firm based in the Dallas area that lists family offices among the investment clients it has served "since 2007" on its investment IT page, with ISO 9001 and ISO 27001. It suits a bigger build with a formal process; its own estimate for custom investment management software starts at $150,000.
For more finance-focused builders, see our roundup of the best fintech software development companies. Offices that also hold operating companies may find our guide to software development for private equity firms useful.
FAQ
Should a family office build its own reporting platform?
Rarely. Consolidated reporting across custodians is what Addepar, Masttro, Asora and Eton already do, and custodian feeds take years to build. Build around the platform, not instead of it.
What does family office software cost?
Asora's published prices start at its $30 million bracket and run up to custom quotes above $1 billion; most other platforms are quote-only. For custom work, RaftLabs starts at $10,000, and published agency ranges compiled by Digital Mundo put a first internal tool at $10,000 to $60,000 at a AI-native studio.
How do we keep it secure?
Role-based access that follows the entity structure, two-step sign-in, an audit log of every view and change, and a written answer on where data and documents are stored. Ask every vendor for this before any build starts.
What about the office's old database?
A tool can read from an old system and handle one painful step around it, which buys time before any replacement.
Pick the one workflow your team retypes every month, and judge vendors by how quickly they can make it stop.
Disclosure: Digital Mundo LLC and Gold Penguin LLC have the same owner.
