Series B Fundraise Preparation – Ace Tarakchian

The honest answer is that preparation should start 4–6 months before you intend to launch the process – not 6 weeks. The financial model alone takes 4–6 weeks to build correctly when you factor in reconciling historical actuals, documenting operating assumptions, and running sensitivity analysis. The data room requires assembling, auditing, and cross-checking 40–60 documents. The investor narrative needs to be pressure-tested against the data before the first meeting. Companies that start 6 weeks out almost always have one of three problems: a model that falls apart under basic diligence questions, a data room with inconsistencies that slow the process, or a narrative the CEO cannot defend under questioning because it was written by someone else in the final sprint.

A complete Series B data room typically includes 40–60 documents across 8–10 categories: company overview and board decks (last 4 quarters), financial model and historical actuals (monthly P&L, cash flow, balance sheet), customer data (ARR bridge, cohort retention waterfall, customer-level ARR list, churn log with reasons), GTM documentation (sales playbook, ICP definition, pipeline report, rep-level quota attainment), product and technology (architecture overview, security documentation, IP schedule), legal (cap table, all investor agreements, employment agreements for key hires, any pending litigation), and operational metrics (the specific KPI dashboard investors will ask about). The most commonly missing items are the churn log with root causes and the cap table reconciled to the financial model.

Series B investors focus their model scrutiny on three areas. First, unit economics: CAC payback period by channel and cohort, LTV:CAC ratio, and gross margin at the customer level – not blended averages. Second, revenue assumptions: the bridge from current ARR to projected ARR, broken down by new logo ARR, expansion ARR, and churn – with specific assumptions behind each lever. Third, burn efficiency: the implied ARR per dollar of burn over the projection period, and the specific investments driving growth in the model. If your model cannot answer "what is your net revenue retention by cohort over the past four quarters" and "what is your CAC payback period by acquisition channel," those are the first two gaps to close before investor meetings.

A CFO manages the full finance function – accounting, reporting, cash management, financial planning, and investor relations – on an ongoing basis. A Series B fundraise preparation specialist is focused exclusively on the fundraise outcome: building the model, preparing the data room, and coaching the founder for investor meetings. Many companies preparing for Series B do not yet need a full-time CFO, but they do need CFO-caliber financial rigor for the 4–6 month preparation window. A specialist like Ace can provide that rigor at a fraction of the cost of a full-time hire, and often with more direct fundraise experience than a first-time CFO would bring to a Series B process.

The most reliable test is a mock diligence session with someone who has been on the investor side of a Series B. Ask them to stress-test your top 5 growth assumptions – what happens to your projections if CAC increases 20%, if net revenue retention drops 5 points, or if average deal size compresses by 15%. If your model cannot answer those questions with specific outputs, or if the answers produce results that contradict your narrative, the model is not ready. A second test: open your financial model and your board deck side by side. Every number in the board deck should trace back to a specific line in the model. If any board deck metric is manually entered rather than linked to the model, that is a diligence risk.