Case Study · B2B SaaS
Series A Closed in 4 Months
How a B2B SaaS company with $1.2M ARR and 118% NRR went from zero financial structure to a closed Series A at 2× their target valuation - in under four months.
Client
Under NDA
Service delivered
Investment Readiness + Financial Strategy
Industry
B2B SaaS
01 - Client Context
Strong traction, zero financial structure
The client is a 28-person B2B SaaS company (name withheld under NDA) building workflow automation software for mid-market professional services firms. Founded in 2023, by 2026 they had grown to $1.2M ARR - entirely through word of mouth and a founder-led sales motion - with 85 paying customers across Europe and North America.
The fundamentals were genuinely strong: 5% MoM growth over the prior 6 months, 118% net revenue retention, and an average contract value of $14,000/year. Customers were expanding, churning at under 4% annually, and becoming vocal advocates. On paper, this was a fundable company.
The problem was the paper. The founding team - 2 engineers and a product lead - had never built a financial model, had no CFO, and were managing the business from a single P&L spreadsheet updated monthly. Every investor conversation reached the same wall: "Can you walk us through your unit economics?" The answer, every time, was effectively no. Whales Finance was brought in to fix that fast.
02 - The Challenge
Four gaps standing between them and a term sheet
No investor-grade financial model
One P&L spreadsheet, updated monthly. No ARR waterfall, scenario planning, or investor-ready projections.
Unclear unit economics
CAC had never been calculated. No clean way to separate acquisition cost from founder time.
No pitch-ready financial narrative
Strong product slides, no financial story. $1.2M ARR shown with no growth context or use of proceeds.
No due diligence readiness
No data room, no audited financials, no cap table beyond a spreadsheet. Two prior investor conversations had stalled here.
"We knew our product worked - we just couldn't prove it financially."
03 - Our Approach
Full investment readiness in three phases
Whales Finance took ownership of the entire financial preparation track - from building the model to coaching the founders through live investor Q&A. Given the company's strong underlying metrics, the brief was clear: the fundamentals were there, we needed to surface them in a language investors speak.
Weeks 1-4
Financial model & unit economics
We built a full 3-year financial model with base / upside / downside scenarios, a monthly ARR waterfall, and cohort-based retention analysis. CAC was reconstructed from historical CRM and payroll data. The resulting LTV/CAC of 4.2× and 11-month payback period became the anchor of every investor conversation.
Weeks 5-8
Investor narrative & deck support
We rebuilt the financial section of the deck from scratch - replacing flat ARR numbers with a growth story: 5% MoM, 118% NRR, expanding ACV, and a clear path to $5M ARR within 18 months of raise. We structured the data room across 7 categories and cleaned the cap table ahead of investor review.
Months 3-4
Active investor process support
We joined 11 investor calls as the financial lead across 6 weeks of active process. When three term sheets arrived simultaneously, we modelled the dilution, liquidation preference, and pro-rata implications of each - enabling the founders to choose the right partner, not just the highest valuation. The round closed at $3M from a US-based SaaS-focused fund.
Week 4
Financial model complete
Week 8
Data room ready
Month 3
First term sheet received
Month 4
Round closed at 2× valuation
04 - Results
Numbers that speak for themselves
Valuation achieved vs. the founders' initial target - driven by a model that held up under full investor diligence
From start of engagement to signed term sheet - one of the fastest Series A closes in the portfolio
Series A raised from a US-based SaaS fund - chosen from 3 competing term sheets based on term structure, not just headline valuation
LTV/CAC ratio reconstructed from scratch with an 11-month payback period that held up under full investor diligence
We had 118% NRR and didn't even know how to say it properly in a pitch. We knew our product worked - we just couldn't prove it financially. Whales Finance took three years of messy data and turned it into a story three investors wanted to fund simultaneously. We went from stalled conversations to three term sheets in six weeks.
CEO · B2B SaaS, workflow automation (Under NDA)
05 - Key Takeaways
What made the difference
Valuation is a narrative, not just a number. Investors don't just buy a model - they buy a story about growth, retention, and defensibility. The financial model was the proof layer behind that story, not the story itself.
Unit economics is the language of Series A. CAC, LTV, and payback period are table stakes. But it's the cohort behaviour and NRR trajectory that separate fundable companies from great products with unclear paths to scale.
Preparation creates leverage. Having multiple term sheets wasn't luck - it was the result of being genuinely diligence-ready before the first investor call. Founders who are prepared control the process; founders who aren't are controlled by it.
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