What finance support does a scale-up need before a Series B or C?
Before a Series B or C, actuals, growth assumptions and funding needs have to fit together. Depending on the bottleneck, the company needs additional FP&A capacity, closing support or finance leadership. What matters is the next reliable step of work, not the label of the funding round.
Data basis for the investor conversation: reconcile ARR, booked revenue and cash receipts – with a contract example and a monthly check routine.
Straight to the decision: The right role · Scope of work · Cost and data needs · Request
Which role solves the bottleneck?
- The CFO is in place, but the model and analyses are missing: interim FP&A for forecast, scenarios and alignment with the business units.
- Actuals and closings are unclear: interim accounting or a senior accounting role. A detailed forecast does not replace a reliable data basis.
- Nobody is leading finance and the fundraising work: an interim CFO for a time-boxed mandate, or a fractional CFO for a permanently smaller scope.
A concrete package for finance preparation
- Clarify the starting point: capture the relevant entities, the last reconciled figures, the running forecast and the planned funding process. Open items get an owner.
- Connect actuals and operating metrics: reconcile revenue, customer development, costs and cash to the accounts. For SaaS in particular, keep ARR/MRR, retention, billing and cash receipts apart.
- Explain the plan and the funding need: link operating drivers, hiring and investments to profit and liquidity. A base case and a risk case show the effect of changed assumptions.
- Prepare the finance data room: provide reports, model versions, reconciliations and explanations in an orderly way. Every material number needs a source and a contact person.
- Review and handover: agree open questions, model limits and the update rhythm with the CFO and management. The internal owner can follow the agreed update.
The result is an agreed finance work package. Investor search, legal transaction advice and a successful round are not automatically included or guaranteed.
Data needs and cost factors
For a first assessment, a description of the bottleneck, the desired start, the number of entities, the systems and the next critical date are enough. For the work itself, reconciled actuals, the existing plan, the relevant operating metrics and existing reporting requirements are needed. Confidential files are shared through a separately agreed access.
A proposal separates the initial review, model and reporting work, regular updates and support with follow-up questions. Entities, data gaps, model complexity and available internal capacity determine the effort. The price overview by role gives orientation; the actual scope is agreed after reviewing the starting point.
Working with the existing team
Business units provide and confirm operating assumptions. Accounting is responsible for the underlying actuals. The CFO and management approve the plan and external communication. nugrow takes on the specifically agreed interim or project role. Required decisions and access remain part of the shared work plan.
Documented experience with a Series C
In the 26-month B2B SaaS CFO mandate for a company with more than 300 employees, the brief included preparing and leading a Series C round of 23 million US dollars and setting up new closing processes in Germany, the US and the UK. That is a published mandate case, not a promise of results for other financings.
Further reading
- Interim FP&A and financial modelling.
- Sort out closing backlogs first.
- Prepare the finance data room.
- Finance for VC-backed tech scale-ups and finance support from Series A to D.
Frequently asked questions
Do I definitely need an interim CFO before a Series B or C?
No. Depending on the bottleneck, interim FP&A or accounting support is enough. An interim CFO or fractional CFO fits when nobody is leading finance and the fundraising work.
When should finance preparation start?
Early enough that reconciled actuals, a plan and a data room are in place before the first investor meetings. How long that takes depends on the state of the data and the number of entities.
Does finance support guarantee a successful round?
No. Investor search, legal transaction advice and the success of the round are not automatically included. The finance work makes sure the numbers and documents hold up.
What work has to be in place before the next round?
Tell us the next date, the current bottleneck and the finance roles already filled. From that, a sensible first assignment can be derived.
Describe your finance needs without picking a time slot · Sort it out in a first call
Work structure by nugrow. The mandate details come from the linked reference. As of October 2026.
