Customized Templates and Ongoing Support
Hi, my name is Jacek and I build investment-grade financial models designed for clarity, forecasting, and strategic decisions. These tailored Excel and Google Sheets models turn your business plan into a transparent, structured tool. Whether you’re raising capital, evaluating an investment, scaling a subscription business, or planning infrastructure, your model will highlight key drivers, quantify risks, and support confident decisions.
📊 Custom Financial Models
I design models that mirror how your business actually works — revenue engines, customer behaviour, cost structures, CAPEX plans, financing, and long-term growth paths.
🧠 Built Around Your Business Drivers
- Financial models structured around measurable business drivers including user growth, pricing, churn, ARPU, CAPEX phasing, OPEX, and unit economics.
- Clear logic linking revenue streams, cost structures, customer cohorts, fundraising rounds, and operational KPIs.
- Modular and fully auditable structure that allows complete traceability of assumptions and calculations.
📈 Forecasting, Revenue Modelling & Scenario Analysis
- Fully integrated forecasts across Profit & Loss, Cash Flow, Balance Sheet, debt schedules, working capital, and cap tables.
- Detailed revenue and cost modelling including cohorts, churn, ARPU, CAC, LTV, product or regional splits, pricing scenarios, and operating cost structures.
- Scenario and sensitivity analysis covering pricing changes, customer growth, churn, CAPEX timing, funding options, runway, IRR/NPV/payback, and lender ratios.
📊 Investor-Ready Dashboards & KPIs
- Dashboards highlighting valuation, profitability, liquidity, and return metrics for investors, boards, and credit committees.
- Includes IRR, NPV, payback, terminal value, EBITDA, margins, cash runway, funding gaps, and lender ratios.
- Outputs designed for clarity, enabling fast interpretation of key financial outcomes.
💸 Debt, Equity & Capital Structure Modelling
- Financing structures covering loan tranches, amortisation, interest-only periods, revolvers, and funding milestones.
- Cap tables mapped to ownership changes, dilution, equity rounds, and long-term capital structure planning.
- Covenant testing, lender ratios, and scenario-driven financing analysis aligned with investor and lender requirements.
🛠️ How I Work
- Free consultation to understand your business model and objectives.
- Proposal outlining model structure and key drivers.
- Custom build using clear, modular logic.
- Walkthrough session so you can own and maintain the model.
- Support for refinements or investor Q&A.
📈 Examples of Work
- Telecom Infrastructure – Long-Term Buildout & Investor Modelling
Built multi-year models with churn, network rollout, CAPEX, and financing to support equity raises, private credit, and strategic planning. - Real Estate – Development & Rental Portfolio Forecasting
Modelled sales, rental yields, financing, and cash flow timing to support fundraising and internal FP&A. - Subscription & SaaS – Cohort & Recurring Revenue Models
Developed churn-based cohort forecasts, pricing scenarios, LTV/CAC models, and valuation frameworks. - Project Finance – CAPEX Phasing, Funding Structures & Returns
Created long-term energy and telecom models covering CAPEX, operating costs, debt/equity structures, IRR/NPV, and waterfall returns. - Media & Digital – Advertising Yield & Scenario Analysis
Modelled profitability, campaign performance, and long-term financial planning. - Corporate Finance – Decision Models for CFOs & Finance Directors
Delivered FP&A models, cash flow forecasts, budgeting frameworks, and strategic decision tools.
Get in Touch
📌 Featured Financial Modelling Tutorials
Here are some of my hands-on tutorials that walk through building core financial models step by step:
- Cash Flow Forecast Model – Build a complete monthly cash flow forecast with drivers and sensitivities.
- Project Finance Model – Create a project finance model with CAPEX, costs, debt, IRR/NPV, and stress tests.
- Telecom Financial Model – Forecast customer growth, rollout CAPEX, and long-term telecom returns.
- Mergers & Acquisitions Model – Build an M&A model that shows combined performance and synergies.
- Subscription Model with Churn, Cohorts & Recurring Revenue – Model churn, cohorts, retention, and long-term recurring revenue.
📁 Download Sample Templates
Below are a few examples of my financial model templates that demonstrate the same structure and clarity:
Why Choose ChallengeJP?
- Over 10 Years of Experience — With over 10 years of experience in Commercial Finance and Data Analysis, I have helped businesses in many different industries to make sense of their data.
- Take Control of Your Data — Whether you use my consultancy services or Excel training courses, you’ll be in control of the process and the result — you can decide what you want to learn yourself, and which aspects of data analysis you’d like me to take care of for you.
- Personalised One-to-One Solutions — I offer personalised solutions to help you master spreadsheets and maximise data value. My courses are held on a one-to-one basis so I can tailor them to your skills and pace of learning. I also tailor my consultancy services to your business needs and desired results.
- Hands-On Learning Experience — Listening, watching and taking notes can only get you so far. So ChallengeJP courses give you the chance to apply lessons to practical examples. With hands-on learning experience, you’ll develop confidence using and creating spreadsheets.
- Competitive Pricing — All of the ChallengeJP services are competitively priced so you can get the help you need without breaking the bank. Whether you use my Excel courses and training to develop your skills, or you bring me on board to help with a business project, I will always offer you fair and competitive prices.