Your Startup Builds the Product.We Build Your Finances.
Fractional CFO for German AI & SaaS startups. From first bookkeeping setup to investor-ready financials — we grow with you.
Built For
How We Help
Your growth path — from day one to Series A and beyond
Day 1: Get Started
Just founded? We set up your bookkeeping, structure your documents, and make sure you're set up clean from day one. Also available as cash + equity hybrid.
Get Organized
Your startup is growing but finances are lagging behind? We bring structure — from ongoing bookkeeping and document management to your first clean monthly report.
Drive Growth
Investors want to see numbers. We build your controlling, deliver forecasts, and make you reporting-ready for any due diligence.
Scale Strategically
Board meetings, fundraising rounds, scenario planning — you need a CFO who thinks ahead. As your Fractional CFO, I'm your strategic sparring partner.
How We Cut Vendor Costs by 77%
Strategic cost optimization for a seed-funded AI sales platform
The Company
A Berlin-based B2B SaaS startup building an AI-powered sales platform. Seed-funded and rapidly scaling their product offering.
The Challenge
After pivoting to a new AI architecture, the company's vendor usage patterns fundamentally changed. Existing contracts no longer aligned with actual needs, creating significant cost inefficiencies.
"A comprehensive spend analysis revealed a major discrepancy between contracted vs. actual usage across key vendors. We were paying for services we no longer used."
My Role
Interim CFO providing strategic financial leadership at 10-15 hours per week as a long-term partner. Led cross-functional coordination between Product, Tech, Customer Success, and vendor teams.
The Solution
Renegotiated primary vendor contract terms
Leveraged accumulated unused credits as negotiation tool
Aligned contracts with new business model and usage patterns
Secured long-term commitments in exchange for better pricing
The Results
Reduced quarterly vendor costs from €26K to €6K while maintaining service quality and strategic partnerships.
Key Lesson: Regular spend audits are crucial, especially for AI-heavy businesses with dynamic usage patterns. Always align vendor contracts with your actual business model, not projected usage.
Want similar results for your business?
Schedule a ConsultationResults We Deliver
Concrete outcomes from our work with startups and growing businesses
77%
Vendor cost reduction for a seed-funded AI platform through strategic renegotiation
< 4 Weeks
From zero to complete finance setup including bookkeeping, reporting, and tax advisor integration
20+ Hours/Month
Time saved for founders through automation of finance processes and reporting
100%
Investor readiness for the next fundraising round — clean numbers, clear reporting
Financial LeadershipWhen You Need It
Most startups need strategic financial leadership but can't justify a full-time CFO. I bridge that gap as a Fractional CFO — backed by a network of finance freelancers for operational execution.
Whether you're setting up your first bookkeeping, preparing for a fundraising round, or finally need clean numbers for your board — I bring the strategic experience, my team brings operational excellence.
Why Choose Fractional CFO Services
German Finance Infrastructure
DATEV, lexOffice, sevDesk, tax advisor coordination — I know the German finance landscape and its specifics.
SaaS & AI Expertise
MRR, ARR, unit economics, churn — I speak SaaS metrics fluently and understand AI startup dynamics.
Fundraising Experience
From financial models to investor decks to due diligence — I've guided founders through multiple funding rounds.
Tech Stack Integration
Chargebee, Stripe, HubSpot, Spendesk — I connect your tools into a finance stack that works automatically.
Flexible engagement models designed for small businesses and startups, from ongoing strategic advisory to project-based support during critical growth phases.
Professional Network & Credentials
PEAK Consulting Partner
Member of PEAK Consulting network, connecting experienced finance professionals across Europe for collaborative client solutions.
Connect on LinkedIn
View Stephan's professional background, recommendations, and network of 500+ finance and operations professionals.
As a trusted partner in the PEAK Consulting network, we combine individual expertise with collaborative knowledge-sharing, ensuring you benefit from collective experience across diverse industries and growth stages.