The CFO Stack
The CFO's content hub — metrics architecture, data rooms, forecast discipline, cohort and segment analysis, intangible-asset capitalisation, and the diligence-ready stack. Built for the person who has to defend it all in the data room and reconcile every number to source. Cross-cutting across all five Round Ready pillars.
The Series A and Series B CFO defends the entire diligence surface. The metrics tree, the cohort architecture, the forecast assumptions, the comp-set discipline, the intangible-asset capitalisation policy, the precedent-transaction read, and the reconciliation between every number that lands in the partner's deck and the source system that produced it. The CFO Stack is the structured surface for that defence — a curated cross-pillar hub that pulls the finance-relevant clusters from all five Round Ready pillars into one operating manual built around the CFO's workflow rather than the founder's narrative arc.
Key Takeaway: The CFO is the partner team's primary interlocutor through diligence. Founders sell the narrative; CFOs defend the evidence base behind it. The defence is reconciled to source on demand, decomposed by segment when asked, and structured to a partner-recognised data-room schema before the conversation begins.
Who this hub is for
CFOs and Heads of Finance at scaleups preparing institutional rounds — Series A, bridge, Series B. Equally relevant for the founder operating without a CFO who is preparing the diligence pack themselves and wants the structured CFO-grade discipline. Useful for the operating partner at PE houses running CFO recruitment for portfolio companies — the clusters articulate what to hire for at each stage.
For ICP fit, the hub is strongest for the institutional scale-up CFO archetype. The fractional-CFO and Head-of-Finance archetypes operating across multiple scaleups derive equal value; the hub is structured to be portable across portfolio operators on a single diligence vocabulary.
What lives here — the architecture
A CFO defends six interlocking surfaces in institutional diligence: the data room (structure and completeness), the metrics tree (definitions and decomposition), the forecast (assumptions and defensibility), the cohort architecture (segment-level discipline), the valuation case (methods and comps), and the intangible-asset capitalisation policy (IAS 38 in the UK, ASC 350 in the US). The ten clusters in this hub map across those six surfaces — pulled from the four Round Ready pillars where each surface is most-developed (Series A Readiness for the data-room and cohort surfaces; Series B Readiness for the metrics-tree and burn-multiple surfaces; Scaleup Valuation for the methods, PPA, and comp-set surfaces).
The hub overlaps deliberately with the other five hubs. The Series A Playbook covers the founder's view of the diligence corpus; the CFO Stack pulls the same artefacts but through the CFO's defensive lens. The Valuation Lab covers the founder's view of valuation argument; the CFO Stack pulls the methods, comps, and PPA clusters through the CFO's reconciliation discipline. The duplication is the point — the founder and the CFO will be asked the same questions in different rooms by the same partner team, and they need to articulate the same answer in different vocabularies without contradicting each other.
Example: A CFO at a £6M ARR Series A preparation has built a 23-tab data room and a five-tab metrics deck. The partner team opens the cohort tab first and finds the cohort denominator is blended (every customer who signed in a given month). Decomposing by acquisition channel reveals the SMB self-serve cohort retains at 65% net while the enterprise cohort retains at 118% net. The CFO who has decomposed the metric in advance defends the round at the original ask. The CFO who reports the blended 91% is asked to come back next quarter.
The 10 assets
Curated cross-pillar — the finance-relevant clusters from all five Round Ready pillars.
| # | Asset | Where it lives | Why it matters |
|---|---|---|---|
| 1 | Series A Data Room — the 23 tabs | /series-a-readiness/data-room | The institutional data-room schema CFOs are expected to defend in real time |
| 2 | The cohort analysis partners open first | /series-a-readiness/cohort-analysis | The single largest source of partner pushback in Series A diligence — and the decomposition discipline that survives it |
| 3 | Series A unit economics — the denominator problem | /series-a-readiness/unit-economics | The technical discipline behind LTV, CAC, payback, and burn multiple at the institutional bar |
| 4 | What metrics you actually need for a Series A | /series-a-readiness/metrics-bar | The institutional bar partners measure against — distinct from the seed-stage bar and from the Series B bar |
| 5 | Burn multiple — what investors want to see | /series-b-readiness/burn-multiple | The 2025 bands by ARR scale. The metric every CFO must be able to compute in real time and decompose on demand |
| 6 | From 108% NRR to 128% — the playbook | /series-b-readiness/nrr-playbook | The three-component playbook that compounds NRR across rounds — pricing, expansion, retention |
| 7 | Series A valuation benchmarks by sector, 2024-25 | /series-a-readiness/valuation-benchmarks | The structured view of what your sector cleared at and the multiple cone the comp set should produce |
| 8 | Valuation methods — DCF, comps, RFR, MPEEM | /valuation/methods | The four IVS-grade methods and when each applies — the technical reference behind every valuation defence |
| 9 | Purchase price allocation for operators | /valuation/ppa | What PPA disclosures of comparable acquisitions reveal — the most under-used data source for operator-side valuation defence |
| 10 | Dilution math every founder should own | /valuation/dilution-math | Pre vs post-money, option-pool top-up, SAFE conversion stacks, and the four flavours of anti-dilution — in the CFO's vocabulary |
The anchor asset
The CFO's Institutional Diligence Pack — a 23-tab template bundle covering the data-room structure institutional partners expect at Series A and B, with a working example. Built to the partner-recognised schema rather than the internal-storage convention CFOs typically inherit. CFO-forwardable end to end. Email-gated when the bundle ships in product; until then, the data-room cluster is the structural reference.
For the CFO operating without a fractional valuer or boutique advisor, the cluster pairs with the Opagio Valuator and the methods cluster to produce a defensible first-pass valuation case the CFO can defend in front of the partner team.
Where to start — recommended reading order
For Series A diligence preparation, start with the data-room cluster to set the structural schema, then move to the cohort-analysis cluster because cohort denominators are the most-rejected element of CFO submissions. The unit-economics cluster follows naturally — same decomposition discipline, applied to LTV, CAC, and payback.
For Series B preparation, the burn-multiple cluster and the NRR playbook are the highest-leverage clusters. For the valuation defence the CFO co-owns with the founder, read the methods cluster and the PPA cluster together — they are the technical foundation behind the comp-set discipline.
Open the 23-tab diligence pack
Cross-pillar. CFO-grade. The structural reference for institutional diligence at Series A and B.