Constantin Botnari, ACMA CGMA, provides fractional CFO services to SaaS companies from Seed to Series B. Based in London, working with UK tech companies on financial strategy, fundraising, and scaling.
A fractional CFO in the UK provides strategic financial leadership on a flexible basis. Unlike a full-time hire, a fractional CFO works one to three days per week, giving growing SaaS companies access to CFO-grade thinking without the £150K+ salary.
Understand the difference: Fractional CFO vs Finance Director — what each role actually does.
For SaaS companies exploring virtual options: Virtual CFO services for SaaS companies.
Building a financial model for fundraising requires driver-based logic, integrated statements, and scenario analysis. Our complete guide walks you through every step: How to Build a SaaS Financial Model.
Need a starting point? Download our SaaS Financial Model Template — what investors actually want to see.
Avoid common pitfalls: SaaS Financial Model Mistakes That Kill Fundraises.
LTV, CAC, payback period, and NRR — the metrics that drive SaaS valuations. Our definitive guide: Unit Economics for SaaS — The Complete Guide.
How do your numbers compare? See the latest B2B SaaS Metrics Benchmarks for 2026.
Every founder should track these: SaaS Metrics Every Founder Must Track.
SaaS revenue recognition under IFRS 15 is the area where we see the most mistakes — multi-element arrangements, free trials, usage-based pricing. Read the full guide: Revenue Recognition for SaaS Companies.
Preparing for a raise? Start with the checklist: Series A Fundraising Checklist for SaaS Founders.
Get your data room ready: How to Prepare Your SaaS Company for Due Diligence.
Know your numbers: Startup Runway Calculator — How Long Before You Run Out of Cash.
What is your SaaS company worth? Revenue multiples range from 3x to 15x ARR depending on growth, retention, and profitability. Use our SaaS Valuation Calculator to find out.
See the latest data: SaaS Valuation Multiples 2026 — What Companies Are Worth Right Now.
Build a 13-week direct forecast and 18-month indirect forecast: Cash Flow Forecasting for SaaS Startups.
Your board pack matters: How to Create a Board Pack That Tells a Clear Financial Story.