Cash surprises Forecast guesswork Pricing by gut Runway anxiety Raise unprepared Margins a mystery Hiring on hope Board scramble
Fractional CFO partnership · Founder-led B2B · $2M to $20M ARR

The fractional CFO for B2B founders building what's next.

We take the seat, build the operating model, and own the capital plan, all built to where you're going. One senior CFO function, configured to your stage.

By application. A few seats open.
Trusted by fast-growing B2B companies
IVY Connectd Hopskip CoverageBook RevOnyx Nova OpenStreet Subscript FLATAWAY Scribe Mellow HYK Financial Beam
$0
combined client ARR
$0
ARR scaled to
0
engagements since 2024
0
years combined across the team
— What's at stake

You're making million-dollar calls on numbers you only half-trust.

And you're making them alone. Usually late at night.

The problem

You're a step behind your own business.

  • Your runway is a guess that changes with whoever you ask.
  • Your pricing hasn't moved since year one, and it's capping every deal.
  • Your numbers and story wouldn't pass diligence, and you know it.
The solution

A CFO by your side, making the calls with you.

  • Your runway, known to the week, so no spend is a gamble.
  • Your pricing, set to what every deal is worth, margin recovered as soon as next quarter.
  • Your numbers and story hold up the first time someone runs diligence.
"

The FounderFirst team rebuilt our model from the ground up and had us ready for diligence. But what I actually lean on is having them in the room when the big calls come up. I catch problems early now, and I know what to do about them, instead of finding out a month too late.

Jake Anderson
Jake AndersonCEO, Connectd portfolio company
— Why we're different

Most CFOs start with the spreadsheet.
We start with where you're going.

A company built to sell looks nothing like one built to scale, or one built to own. So before we touch a model, we ask one question: what are you building toward?

Where you are today

Building toward a venture-scale outcome.

The model is tuned for growth: capital that compounds, pricing that scales, and a runway you can push on without losing the floor.

Growth capitalPricing powerEfficient burn

Building a company designed to be acquired.

Building a profitable business that pays you, on your terms.

Where you want to be
Same partner, configured to your path. And the judgment to get you there.
— The proven process

One CFO function. One proven system.

Discovery first, to make sure the seat fits both ways. Then we run it, and every milestone resets the model and feeds the cycle again.

← Back to 02 Build
Start
Discovery

We make sure the seat fits, both ways

01
Diligence

We audit where you stand.

1 week
02
Build

Built to your destination.

3 to 4 weeks
  • Your big why
  • Your stage and model
  • Our mutual fit
  • Financials, model, tools
  • Unit economics
  • Growth levers
  • Cash model first
  • The operating model
  • Benchmarks and strategy
Milestones reset the model

Each on the wheel marks a milestone. A raise, a price change, a cost cut, a new product, or an exit branches off the cycle and returns to 02 Build, then back into the cadence.

* The cadence depends on the tier chosen during Discovery.

03
Run We’re in the driver’s seat.
Ongoing
Cadence *
— Who's in the seat

A senior CFO in the seat, not on the sidelines.

Mariya Valeva, Founder & Managing CFO
Mariya Valeva
Founder & Managing CFO

The playbook is Mariya Valeva's: twelve years as an operating CFO, scaling B2B companies from $0 to $20M+ ARR, twice. The decisions you're facing, she's made before, with her own name on the line.

Every engagement runs on that playbook, under Mariya's oversight and led by a senior CFO trained to her standard. No junior handoff, no marketplace stranger.

Read the full story →
— Proof

What a CFO in the seat actually changes.

Nova · Partner tier

Nova was scaling fast. On numbers no one trusted.

The forecast missed every quarter, blended margins hid which products made money, and the runway number changed depending on who you asked. We tore the model down to the actuals, split the P&L by product, and tied spend to payback, so every hire and every dollar had a reason. When the next raise came, the numbers held on the first pass.

"The FounderFirst team gave us more than a model. They run our board prep and own the numbers behind it, so we walk in ready and make confident calls every quarter."

A.J. TanA.J. Tan, CEO, Nova
1.0x
Burn multiple, down from 2.4x
+9 mo
Runway on the same cash
18%
Higher revenue per customer

Ask the founders.

"

Mariya played a pivotal role in helping IVY navigate our toughest growth challenges.

Beri Meric
Beri MericFounder, IVY
"

One pricing insight from the FounderFirst team changed how we approached our entire pipeline, and it paid off within the quarter.

Stacy Tay
Stacy TayHead of Strategy, Aspire
"

With the FounderFirst team owning our numbers, we make every pricing and strategy call on a clear read of the business. Financial leadership we could never have built internally.

Reggie Sorrell
Reggie SorrellFounder & CEO, OpenStreet
— The math

A fractional commitment. Full CFO ownership.

A full-time CFO at this stage runs $300K to $400K a year fully loaded, plus equity, and the work that truly needs that seniority is a handful of high-stakes calls a year. You get that same senior judgment, exactly when the stakes are high, configured to your stage, for a fraction of the cost. And when you outgrow us, we'll tell you, and help you hire.

— Three ways to work with us

We meet you where you are, and build forward.

Move up as the company grows. Same firm the whole way. Scale it, sell it, or own it. The destination shapes the work. Your stage sets the depth.

Tier 01
Advisory
Advisory CFO
Senior direction for founders still running finance day-to-day.
What's included
  • One CFO session a month, and you leave knowing what to do.
  • Runway and burn owned, not guessed
  • Fundraise guidance before you're in the room
  • Diligence-ready before anyone asks
Best for: $2-5M ARR · founders with a model wanting CFO pressure-testing
Start here →
Most chosen
Tier 02
Partner
CFO + Strategic FP&A
Hand over financial leadership: the model, the reporting, and the calls above your books.
Everything in Advisory, plus
  • Your operating model, built and maintained by us
  • Capital allocation strategy off your desk
  • Monthly reporting and KPIs your team runs on
  • Bi-weekly CFO cadence, with investor support
Best for: $5-15M ARR · scaling and ready for a real finance function
Work with us →
Tier 03
Lead
CFO + FP&A + Board
For companies with multiple P&Ls, a board to answer to, and a raise or sale ahead.
Everything in Partner, plus
  • Board materials and management, owned
  • Multi-product P&Ls and scenario modeling
  • Structure fixed before diligence finds it
  • Raise and exit readiness: the model and data room a buyer or investor will want
  • Investor and board meetings supported, so the prep stops eating your time
A live raise or sale runs as a separate, time-boxed engagement, not a monthly feature.
Best for: $15-20M+ ARR · raising late-stage or preparing to exit
Talk to us →
— Start here

Scale it. Sell it. Own it. Your call.

One call. We'll tell you where your numbers stand, what they let you do, and what to fix first. No deck. No pitch.

A short application first. We take on a limited number of founders at a time, so every seat gets a real CFO.

Work with us →

Not ready to talk? Read Tiny Margins, our Thursday letter for founders. →