Fractional CFO · Southold, NY

bring us the spreadsheet you’re embarrassed by.

Bellerophon Advisory is the finance function a growth-stage startup needs before it can justify a full-time CFO. Cash forecasts, budgets, raise prep and board packs — each one quoted as a fixed price before we start, each one with an end date.

Engagements from $2,950 · Mon–Thu 10am–5pm · Fri to 2pm

A printed cash-flow forecast with one week circled in oxblood ink, a brass ruler and a glass of red wine on a burnt-orange desk
Sample 13-week forecast · $k
Illustrative 13-week cash forecast, weeks one to five, in thousands of dollars
WkInOutCash
011862411,185
02922381,039
033102441,105
0474251928
05205239894

≈ 13 weeks of cash left. That’s the conversation we’d open with.

Before you book anything

the questions people usually save for the end of the call

We’d rather answer them first. If one of these answers rules us out, good — that saves both of us an invoice.

  1. do we actually need a CFO yet?

    Maybe not. If you’re pre-revenue with a handful of people and more than eighteen months of runway, you need clean books and a bookkeeper who closes on time. You need us when the money decisions start to have consequences you can’t undo — hiring ahead of revenue, a raise on the calendar, a board asking questions you answer with “roughly”.

  2. why not just hire a full-time one?

    Eventually you should, and we’ll tell you when. Before then, a full-time CFO costs a senior salary plus equity to do work that fills two days a month. We’re the bridge: the forecast and the board pack now, a clean handover file when you make the hire.

  3. what does it cost, all in?

    Every engagement is a fixed price agreed in writing before work begins — $3,850 for a 13-week forecast, up to $11,750 for full raise prep. There’s no hourly meter running in the background, which means you can call with a dumb question and it costs you nothing.

  4. will you do our bookkeeping?

    No. We work on top of your books, not inside them. If the books are behind, we’ll say so on the first call and point you to someone who catches up ledgers for a living. Building a forecast on a ledger that’s three months stale is how firms like ours bill for work that’s wrong.

  5. you’re in Southold. does that matter?

    Not much. The work happens in shared files and on video calls; board meetings are remote unless you’d rather we come in person. If you’re out east, the office on Founders Path has a table big enough to spread a board pack across.

  6. what if it isn’t working?

    Every engagement is broken into phases with a deliverable at the end of each. Stop after any phase and you pay for that phase only, and you keep everything built so far. Board reporting runs quarter to quarter — cancel at any quarter end.

How an engagement runs

what the first month actually looks like

Bank statements, invoices and a laptop with a cluttered spreadsheet spread across an oxblood table
fig. 01 — the starting material. It is always messier than the founder thinks, and never as bad as they fear.
Days 1–5

we read everything, including the tab nobody opens

Bank feeds, the accounting file, customer contracts with payment terms buried on page nine, the payroll export. Most of what we find in week one isn’t wrong — it’s undocumented. We write it down so the next person doesn’t have to rediscover it.

Hands at a keyboard in front of a monitor showing a tidy financial model under a burnt-orange lamp
fig. 02 — your file, your workspace, formulas you can trace back with a click.
Weeks 2–3

the model gets built where you can watch it

No black-box macro you’ll be afraid to touch once we’ve gone. Two working sessions where we argue about assumptions — churn, hiring dates, how long your biggest customer really takes to pay. Those arguments are the useful part; the spreadsheet just records who won.

A spiral-bound board pack with an oxblood band on a walnut table beside a coffee cup
fig. 03 — the pack. Six pages, then the appendix nobody reads but everybody wants to exist.
Every month after

one pack, one call, one number to stare at

If you keep us on for board reporting, the month settles into a rhythm: books closed by the 10th, a variance call by the 15th, and a pack that opens with cash in the bank and the week it runs out. Everything else is supporting detail.

Priced per engagement

pick the problem. we’ll quote the fix before we touch it.

Fixed fees, written scope, a finish date. Each one also lists what it won’t fix, because somebody should.

13-week cash forecast

A direct-method, week-by-week forecast built from your bank data — not reverse-engineered from the P&L. You’ll see the week cash gets tight while there’s still time to do something about it.

  • Model built in your Google Sheets or Excel — yours to keep
  • Three scenarios: base, hiring freeze, slow-paying customers
  • A 45-minute handover so someone on your team can roll it forward
Start with the forecast
$3,850fixed
Timeline
2 weeks
We’ll need
Read-only bank and accounting access, AR/AP aging
Won’t fix
A burn problem. It will show you the burn problem very clearly.

Invoiced 50% to start, 50% on delivery. Full scope documents for each engagement live on the services page.

What actually lands in your inbox

a board pack people read past page two

Six pages, in this order, every quarter. If a page has nothing worth saying, it says that in one line instead of filling the space.

  1. p.1The letterOne paragraph: what changed, what worries us, what we’d do.
  2. p.2Cash & runwayMonths of runway and the calendar week it ends.
  3. p.3Burn vs. planBy department, with the owner’s one-line explanation.
  4. p.4Revenue bridgeLast quarter to this: new, expansion, churn, nothing hidden.
  5. p.5Hiring against cashEvery open role, its start date, and what it does to runway.
  6. p.6The asksAt most three decisions you need from the board.
Walk through a pack with us
Fit, honestly

who this works for — and who should keep their money

A founder in a burnt-orange sweater working through runway math on a whiteboard against an oxblood wall
fig. 04 — runway math, done the long way.
Good fit

seed to series B, burning real money

You raised, you’re hiring, and the spreadsheet your co-founder built two years ago is now holding up the building.

Good fit

a raise somewhere in the next nine months

Diligence starts the day you send the deck. Investors will ask for the model, the cohort data and the hiring plan; you want those to already exist, and agree with each other.

Good fit

your finance lead just left

We keep the close, the forecast and the board pack moving while you hire — and write the job description from what the role actually turned out to be.

Not a fit

pre-revenue, two people

You need a good bookkeeper and a calendar reminder, not us. We’ll happily tell you who.

Good fit

hardware, or anything with inventory

When cash sits in a warehouse for ninety days, the P&L lies to you politely. A weekly cash view doesn’t.

Not a fit

you want a rubber stamp

If the number is already decided and you need someone to sign under it, we’re the wrong hire. We’ll write down what we actually think.

About the name

why bellerophon

He’s the one who got a bridle on Pegasus. A company growing faster than its finance function is the same animal — the job isn’t to slow it down, it’s to steer it. More about us

Contact · 260 Founders Path, Southold, NY

the next step is twenty minutes on the phone

$2,950smallest engagement — one quarter of board reporting
2 wksto a working 13-week cash forecast
10–5Mon–Thu, and Fri to 2pm
20 minfirst call, no charge, no deck required

tell us what’s keeping you up

A sentence is enough. We reply within working hours with a time for the call, or an honest note that we’re not the right people.

Prefer the phone? (631) 324-3036 · or write to contact@bellerophonadvisory.com

FOUNDERS PATH MAIN RD
Bellerophon Advisory
260 Founders Path
Southold, NY 11971
Plot the drive to Founders Path

bring these to the first call

  • Read-only access to QuickBooks, Xero or whatever you use
  • The last three months of bank statements
  • Your current cap table
  • Your own guess at runway — we’ll compare it to ours

office hours

Mon–Thu10am–5pm
Frito 2pm
ACH WIRE VISA AMEX
An oak table with a board pack and a burnt-orange chair beside a window overlooking North Fork farmland
fig. 05 — Founders Path. Big enough table to spread a board pack across.