Build vs buy: fund operations software
A decision framework for fund managers evaluating whether to build custom operational tools, buy existing platforms, or engage a development partner. Covers compliance systems, portfolio monitoring, borrower reporting, and covenant tracking.
The landscape
Fund operations teams face a recurring decision: build internal tools or buy software. For compliance tracking, covenant monitoring, and borrower reporting, this decision shapes years of operational capacity. Get it right and the team operates efficiently. Get it wrong and you spend 18 months building something that still does not work the way you need.
The market has clear tiers:
Enterprise platforms ($100K-500K+/year)
eFront (BlackRock), Allvue Systems, Investran. Full-featured, 6-18 month implementations, large IT teams required. These are built for the largest allocators and often include far more functionality than any single fund will use.
Mid-market SaaS (varies)
Purpose-built tools for specific workflows. Faster deployment, lower cost, narrower scope. These platforms solve one or two problems well and integrate into existing operations without replacing everything.
Internal builds ($200K-500K initial)
Custom systems built by in-house or contracted development teams. Full control, full responsibility. The budget is real, but the ongoing maintenance commitment is often underestimated at the outset.
Spreadsheets (free)
Excel, Google Sheets. Where most teams start. Where most teams eventually break. Rational for 10-20 borrowers, increasingly fragile beyond that.
When funds build
Many of the largest DFIs have built custom compliance tools. FMO (Netherlands), IFC (World Bank Group), and CDC/BII (UK) all invested in internal systems. This signals that the market gap is real: no commercial product fully solved the problem when these institutions needed it. The question is whether building remains the right choice now that the market has matured.
Why they built
- Unique regulatory reporting requirements not covered by any SaaS product available at the time
- Deep integration needs with proprietary risk models and internal systems that predated modern APIs
- Data sovereignty requirements, especially for government-backed institutions handling sensitive counterparty data
- Budget to support 2-4 full-time developers indefinitely, a luxury that mid-market funds typically do not have
What it cost them
- 12-24 months to first production release. Most projects encountered at least one major scope revision during development.
- 2-4 dedicated developers for ongoing maintenance, patching, and feature requests from compliance teams.
- Key-person dependency. When the lead developer leaves, the architecture decisions, undocumented shortcuts, and tribal knowledge leave with them.
- Scope creep. What started as a compliance tracker grew into an all-purpose internal tool with a submission system, a portal, a reporting engine, and a notification pipeline.
The hidden costs of building
The development budget is the cost everyone plans for. These four costs are the ones that surface later, often after the project has passed the point of no return.
Developer turnover
Average tenure for a senior developer is 2-3 years. When they leave, they take the architecture decisions, the undocumented shortcuts, and the tribal knowledge with them. Replacement ramp-up takes 3-6 months. During that window, the system is effectively frozen: no new features, no structural changes, only emergency fixes.
Scope creep
What starts as "just a covenant tracker" grows into a submission system, then a portal, then a reporting engine, then a notification system. Each addition doubles the maintenance surface area. By year two, the system has become the thing nobody wanted to build: an internal product with its own roadmap and backlog.
Opportunity cost
Every developer maintaining a compliance tool is a developer not working on your core mission. For a DFI, that might mean slower deal execution or delayed impact measurement. For a private credit fund, it means engineering hours diverted from portfolio analytics and investor reporting.
Security burden
Financial data requires SOC 2 controls, encryption at rest, audit logging, MFA, and role-based access. Building these properly adds 3-6 months to any project timeline. Maintaining them (patching vulnerabilities, rotating credentials, responding to incidents) is a perpetual obligation that most internal teams understaff.
When SaaS fits
SaaS platforms work when the problem is well-understood and the workflows are standard. For fund compliance, this means the organization needs proven functionality more than it needs custom control. The diagnostic below helps clarify whether your requirements align with what purpose-built platforms already offer.
If most of these apply, a purpose-built SaaS platform will outperform a custom build on time, cost, and maintenance. The savings are not marginal. They are measured in years of development time and hundreds of thousands in avoided cost.
When you need custom but do not have the team
There is a gap between "buy a SaaS product" and "hire 4 developers for 18 months." Most fund operations teams do not have the engineering capacity to build custom software. But their requirements may go beyond what any single SaaS covers. Maybe the workflow is genuinely unique. Maybe the integration requirements are complex enough that off-the-shelf products cannot handle them without significant customization.
The third option: engage a development team that already understands the domain.
Proceptio built CapitalBridge from scratch: cascading assignment rules, multi-currency covenant monitoring, automated escalation workflows, and a counterparty self-service portal. That was one product for one problem. The engineering capabilities behind it (data infrastructure for institutional finance) apply to any operational workflow your organization needs automated.
This is not about buying CapitalBridge specifically. It is about recognizing that the team that built a production compliance platform has already solved the hard architectural problems: multi-tenant security, configurable business rules, audit trails, role-based access, and financial data pipelines. If your fund needs custom compliance tooling, portfolio monitoring, or borrower management systems, and you do not have the in-house team to build it, this is what Proceptio does.
(CapitalBridge, etc.)
Decision framework summary
The right choice depends on where your organization sits across these seven dimensions. No option is universally correct. What matters is matching the approach to your actual constraints.
| Dimension | Build Custom | Buy SaaS | Dev Partner |
|---|---|---|---|
| Timeline | 6-18 months | 2-4 weeks | 2-6 months |
| Year 1 cost | $200K-500K | Contact vendor | Project-based |
| Year 3 cost | $500K-1.1M | Subscription | Maintenance optional |
| Control | Full | Platform limits | Full, with support |
| Maintenance | Your team | Vendor handles | Flexible |
| Risk | Key-person, scope creep | Vendor dependency | Contractual |
| Best for | Unique, novel workflows | Standard workflows | Custom + no dev team |
Two paths forward
Explore CapitalBridge for standard compliance workflows. Or talk to Proceptio about building something custom for your specific operational requirements.