Stack 01 · Fractional CFO

A board-ready financial OS
in 30 days.

AI-native Fractional CFO on retainer for ventures between £500K and £10M ARR. Built to survive Series A diligence. Priced like a sane person.

One Fractional CFO seat remaining this window · No long-form discovery call required to book.

§ 01
Is this you?

If three of these are true, we should talk.

  • 01

    You're between £500K and £10M ARR and the spreadsheet broke months ago.

  • 02

    Your last board pack took 11 days to assemble. You haven't slept since.

  • 03

    An investor asked for a 5-year model with cohort retention. You froze.

  • 04

    You're paying a bookkeeper, an accountant, and an FP&A contractor — and still missing the number.

Not for you if
  • ×Pre-revenue ventures without a paid pilot.
  • ×Founders looking for cheap bookkeeping. We don't replace your accountant.
  • ×Teams who want a CFO to nod at decisions already made.
§ 02
The 90-day path

From diagnostic to defensible in one quarter.

  1. Day 0–7

    Diagnostic

    We plug into Stripe, Xero, HubSpot and your data room. You get a written audit: what's true, what's a guess, what an investor will tear apart.

  2. Day 8–30

    Financial OS

    Rebuilt 5-year model, monthly close cadence, investor-grade KPI dashboard, board pack template. Shipped, not slideware.

  3. Day 31–90

    Operate

    Monthly close in 5 days. Board pack signed off in 48 hours. Direct line for every term-sheet, pricing change and senior hire.

  4. Day 91+

    Compound

    Raise, hire your full-time Head of Finance, or roll the mandate into a portfolio agreement with your lead investor.

§ 03
What ships

Every artefact a CFO is supposed to own.

Not slideware. Working systems your board can stress-test on a Tuesday afternoon.

  • 5-year integrated P&L / cash / balance sheet model
  • Monthly board pack (cash runway, unit economics, cohort retention)
  • KPI dashboard, refreshed nightly from your stack
  • Investor data room — structure, population, version control
  • Cap table and SAFE / convertible round modelling
  • Pricing, packaging and unit-economics review
  • AI-augmented FP&A: scenario stress tests, anomaly detection, variance commentary drafted in hours not weeks
  • Direct line to a CFO who has closed Seed and Series A in UK, EU and Switzerland
§ 04
Engagement

Three ways in. One quality bar.

No hourly billing. No discovery-call gauntlet. Pick the shape that matches your moment.

Sprint

30 days · fixed price
£12,000

Diagnostic + Financial OS shipped. For founders raising in the next 90 days who need a defensible model fast.

Book a Sprint call
Most chosen

Mandate

3 months · retainer
£8,500 / month

The full operating cadence: monthly close, board pack, investor comms, decision support. Most founders renew.

Book a Mandate call

Portfolio

Bespoke
On request

For funds and family offices: one contract across multiple portfolio companies, one quality bar, one GP-level dashboard.

Request a Portfolio brief
§ 05
Live mandate

Logistics.AI — month 16 of an 18-month CFO track.

Pre-Series A. AI-driven AR, AP, reconciliation and reporting. Real-time P&L with contribution margins. Path to profitability shipped in the first 90 days. Read how it was built.

Read the case study
§ 06
Common objections

Answered before you ask.

Why fractional and not full-time?
A full-time UK CFO at Series A costs £140K–£220K all-in. Most ventures between £500K and £10M revenue don't need 40 hours a week of CFO. They need 5–10 hours of the right CFO. The maths is the pitch.
What does 'AI-native' actually mean?
It means scenario modelling, anomaly detection and the first draft of every memo, variance commentary and board narrative run through a proprietary AI layer. The CFO stays accountable. The AI removes the time tax.
Do you replace my accountant or bookkeeper?
No. We sit above them. We make sure the books they close roll up into a model that survives investor diligence and informs board decisions.
Geography?
UK primary. Active mandates across DACH, France, Benelux, the Nordics, Switzerland, Monaco and Malta. Cross-border structuring is treated as a first-class concern.

The next board pack is in three weeks.
Want it to land?