The missing layer in your decision‑making

Complex numbers shouldn’t mean complex decisions.

At InsightLayer, we deliver bespoke financial modelling solutions that turn problems too difficult to solve in-house into clear insights for founders, CFOs, and investors.

Interested in a free consultation?

Trusted by single founders and $100bn+ AUM managers alike

Trusted by founders to $100bn+ AUM managers – InsightLayer overview

How we can help

Complexity is our specialty…

Visual representation of convoluted spreadsheets and missing visibility in financial systems

Your problem

You deal with high complexity, but your tools can’t keep up.

Convoluted structures, black-box legacy spreadsheets, gaps in reporting mean you lack clear visibility of your numbers.

Clean rebuild of financial model structure to eliminate spreadsheet debt

Our solution

We enhance your existing models or rebuild them from the ground up, applying best practice and designing solutions tailored to your exact deal or growth plan, and finally freeing you from spreadsheet debt.

User-friendly scalable financial model delivering clear, defensible numbers

The result

You take away a user-friendly, scalable model that your team can confidently run, producing clear, defensible numbers your Board and investors can trust.

… see how we untangle it for you

  • Advanced financial models and forecasting frameworks designed to turn complex data into actionable insight. From dynamic 3‑statement models to driver-based forecasts and variance analysis, we build tools that help finance teams plan, track, and make decisions with confidence.

  • Comprehensive audits and upgrades to transform messy spreadsheets into clean, reliable, and high‑performance models. We fix structural flaws, enhance clarity and speed, and add robust documentation so your team can trust and scale the model long‑term.

  • Sophisticated valuation models built to handle complex scenarios, from DCFs and market comps to option pricing and probability‑weighted multi-approach models. We layer in sensitivities, bridges, and any presentation‑ready outputs you might need so stakeholders can easily understand the drivers behind the numbers.

  • Advanced scenario planning and sensitivity tools to stress‑test your assumptions. From stochastic (Monte Carlo) simulations to discrete scenarios and data tables, we can help you get clarity on risks, upside, and key value drivers.

  • Custom, investor‑ready dashboards and reporting packs designed for clarity and impact. We align financials to VC and PE metrics, build dynamic visuals, and automate updates so fundraising decks and board materials tell the story you want to tell.

  • Detailed capital structure and funding models that help you track equity, debt, and convertibles, integrated into your financial plan. We run dilution, waterfall, and runway analyses to help you navigate fundraisings with confidence and without surprises.

  • Clear documentation, walkthroughs, and post‑engagement support to ensure your team can continue using and maintaining the model we deliver to you with confidence. From Loom recordings to follow‑up training, we make handover seamless and future‑proof.

Bottom line benefits

Why leading founders, CFOs, and investors trust us with their toughest numbers.

Accelerate fundraising with precise scenario-ready numbers

Raise capital faster by providing investors with the exact numbers and scenarios they require.

Extract hidden insights and correct errors in messy spreadsheets

Unlock trapped value in messy spreadsheets by fixing errors and surfacing hidden insights.

Confident growth forecasting with dynamic financial model visuals

Forecast with confidence so you can plan growth, hiring, and funding without surprises.

Faster decisions via simplified financial outputs

Cut decision‑making time by turning complex financial data into simple, actionable outputs.

Risk modeling and downside stress testing integrated early

Avoid costly missteps by stress‑testing assumptions and modelling downside risks early.

Scalable future-proof financial model built for growth

Future‑proof your finance function with scalable models built to grow with your business.

See why you can trust us with some serious number crunching

Who we serve

Founders & Startups

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CFOs & Finance Teams

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Investors & Boards

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PE & VC Funds

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Lenders & Transaction Teams

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Family Offices

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Founders & Startups | CFOs & Finance Teams | Investors & Boards | PE & VC Funds | Lenders & Transaction Teams | Family Offices |

We partner with teams across the full capital stack, from early-stage founders to global investors.

Case studies

Proud to have worked with:

… and supported over $200m in capital raised to date.

Meet your new favourite business partner

Vittorio Santagostino, ACA CFA – founder of InsightLayer

Vittorio Santagostino, ACA CFA
Founder

With over a decade of experience serving founders, investment banks, private equity funds, hedge funds, and investment managers in the City of London, I am a Chartered Accountant and CFA Charterholder who has built and reviewed hundreds of models across industries and deal types, from early‑stage startups raising their first round to multi‑billion‑dollar transactions.

My background spans complex valuations, portfolio analysis, and financial planning, giving me the rare ability to cut through noise and focus on what drives real business impact.

While highly technical, my approach is and always will be client-first. I don’t just deliver a solution - I empower you and your team to understand it and own it from there on out.

What they say…

“I am a former McKinsey Consultant at McKinsey & Company, Investment Banker at Goldman Sachs and Hedge Fund Investor at Bridgewater Associates. I am accustomed to working with the smartest people in their fields who the very finest quality of work in their fields and Vittorio ranks among them. He is smart, incisive, sees things that I didn't and suggests helpful modifications to my work and is THE best Freelancer with whom I have worked. He is my trusted Thought Partner and go to Freelancer for all complex excel and valuation modeling from this day forward.”

- CEO, private equity fund

“Vittorio is an exceptional FP&A and financial modeling analyst and more importantly, a true strategic partner. We worked together on several complex projects that required not just technical skill, but real business judgment - things like restructuring service pricing, modeling out multi-scenario forecasts, and cleaning up messy assumptions. He’s fast, thoughtful, and highly collaborative. I never had to over-explain things, he just got it. I’d absolutely work with him again and again!”

- Founder, boutique finance consultancy

Book your free financial modelling consultation call

Book your free consultation

Not sure where to start? Book a consultation to discuss your goals, review your existing models, and identify the best path forward. We’ll map out scope, timelines, and deliverables so you know exactly what to expect and when.

Contact us

Interested in working together? Want to know more? Fill out some info and we will be in touch within 24 hours. We can’t wait to hear from you!