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Financial Modeling ServicesA model you can explain line by line.

Three-statement, DCF, and LBO models for fundraising, M&A, and planning. Built from your real cost drivers, easy to change in the middle of a meeting, and built to hold up under a counter-party's diligence.

20 minutes with Gabriel. No sales rep, no deck, no obligation.

Gabriel I. Simion, financial modeling advisor

Client trust signals

“…present it all in a way that would stand up to scrutiny from investors, accountants, and private equity groups.”

Trusted by 500+ growth-driven startups and small businesses

Three mistakes I'll help you avoid

Every model I deliver is structured to handle all three from the start, before a buyer, a board, or a diligence team is the one to flag them. It is faster to prevent these patterns in the architecture than to patch them under pressure later.

Broken Logic

Line items that don't connect the way the business actually works. Revenue grows with no link to its drivers, costs stay flat while volume swings, and the three statements don't tie.

The output looks fine on the surface. Then comes a board question, a diligence check, or a sensitivity test, and the gaps show one by one.

Static Calculations

Calculations that work in one scenario and break in any other. Drop retention 5 points, push rates up 200bps, move the launch by a quarter, and each change means a manual rebuild.

In a live meeting, that means the answer arrives by email a week later, after the decision has already been made.

Unsourced Assumptions

Drivers set by feel, and not by evidence. Growth rates pulled from a benchmark, CAC carried over without testing the channel mix, WACC borrowed from a textbook.

In diligence, the question isn't whether a number is plausible. It's where the number came from. One unsourced driver is enough to make a buyer question every other number in the file.

Get a free model review

No strings attached

Send Gabriel your existing model. He'll review the assumptions, structure, and outputs, and reply with the three changes that matter most.

Reply within one business day.
No automated funnel.

I design the mathematical core of the decision in front of you: a model you can reopen, adjust, and explain to anyone in the room. I've done it 500+ times across fundraising, M&A, and planning. Dynamic, transparent, and easy to use, so you can change a variable and see the impact on revenue, cash, and valuation in real time: in a fundraising room, in a board meeting, or sitting across the table from a counter-party.

Five phases, each one signed off by you

Five phases, signed off step by step, so you watch the model take shape and never receive a black box at the end. Some phases are pure architecture work and stay on my desk; others depend on close work with you, your team, or a counter-party. When a step needs a skill outside mine, sector benchmarks, tax structuring, debt advisory, I bring in a specialist I have worked with before instead of improvising.

1

Data normalization & driver mapping

Foundation

Your historicals come in, the one-offs come out, and the model gets pinned to the operational drivers that actually move the business: pipeline, churn, headcount, unit economics, working-capital terms. We do this side by side, since you know your numbers better than I will in week one, and the baseline has to match the reality you'll be defending. The output is a clean foundation a diligence team can audit line by line.

2

Linked P&L, balance sheet, and cash flow

Three-statement core

P&L, balance sheet, and cash flow get wired together on Wassily Leontief's Input-Output method: every formula traceable, every output reconciling. This phase is mostly heads-down architecture work and stays on my desk. The test is simple: change a single input and revenue, EBITDA, working capital, and cash all move together.

3

Base, upside, downside, and the breaking points

Scenarios & sensitivities

Base, Upside, and Downside cases get layered on top, plus two-way sensitivity tables on the variables that matter: growth, margin, WACC, churn, multiple. The cases come from a working session with you: the assumptions the board wants stressed, the numbers a buyer will push on, the line a lender is going to challenge first. You walk into the meeting knowing the floor, the ceiling, and exactly which assumption breaks the model.

4

DCF, multiples, LBO, capital structure

Valuation & funding

DCF with WACC built up from your real capital structure. Trading and transaction multiples calibrated to a defensible peer set. LBO returns where relevant. The debt/equity mix is modeled out so you can see how the funding plan changes IRR, payback, and covenant headroom. Where a debt-structuring partner or a sector specialist for the peer set sharpens the answer, I bring one in: the valuation is mine, but the inputs come from people who do that specific work every day.

5

Investor pack, board summary, M&A overlays

Decision-ready outputs

A presentation-ready summary deck, the investor IRR / cash-on-cash view, and, for transactions, synergy quantification, accretion/dilution, and post-merger integration overlays. When the buyer's diligence team starts pushing on assumptions or the lender starts asking for backup, I'll sit in on those calls with you: the model is easier to defend when the person who structured it is still in the room. You leave with a model that passes diligence and a summary your board, lender, or counter-party can read in one sitting.

Free Strategy Call

20 minutes with Gabriel

Bring a deal, a fundraise, or a decision. Walk away with a clearer next step. Real time with Gabriel: no sales rep, no deck, no obligation.

Reply within one business day.
Real human, real reply.

Client Testimonials

79+ verified reviews

Selected testimonials from the 79+ verified reviews shown on the homepage, covering SaaS, healthcare, energy, crypto, and private-equity work. Identities protected by NDA.

Verified

We tasked Gabriel with building a comprehensive 3-way financial model for Clean Ocean, a fast-scaling marketing and technology company built around an ESOP structure, global expansion strategy, and recurring-revenue model. [...] It required someone who could [...] model multiple growth scenarios, integrate operational data, and present it all in a way that would stand up to scrutiny from investors, accountants, and private equity groups. Gabriel absolutely nailed it. [...] The Clean Ocean financial model will now form the foundation of our investor communications, internal planning, and ESOP design.

Verified

Gabriel supported me on financial modeling work and delivered exactly what was needed. The models were clean, well-structured, and technically sound, with clear assumptions and logical flow. [...] Reliable, detail-oriented, and easy to work with.

Verified

Gabriel displayed an impressive level of expertise and build a robust and accurate financial model that captures the business's potential. Fast and easy communication.

Verified

Working with Gabriel on my Financial Modeling and Crypto Token Economics was one of the best decisions I've made. His insight, clarity, and strategic thinking made a huge difference, turning complex ideas into actionable models.

Verified

I had a top-notch experience with Gabriel at Simion Advisory Partners while developing an Investment Teaser for my Medical Supplies Company. His financial acumen, deep understanding of my industry, and unwavering commitment to my business were impressive. [...] The Investment Teaser he crafted was meticulously detailed, visually appealing, and showcased a strong understanding of the investment landscape.

Verified

I have worked in the renewable energy industry for 15 years and been Director of my own company for 12 years [...]. Gabriel has given me so many gold nuggets that I never knew existed, making projects that I have had on my plate for years just streamlined and easy to do [...].

Verified

Gabriel was helpful in choosing a commission plan that suited our private equity fundraising campaign. He was also quick to respond.

Verified

Gabriel was great to work with. He quickly understood what I needed and delivered solid financial models with minimal guidance. Professional, responsive, and reliable throughout.

Verified

It was an absolute delight to collaborate with Gabriel, whose expertise in financial modeling is nothing short of outstanding. Even at short notice, he demonstrated great adaptability and readiness, making him an exceptionally reliable partner.

Verified

Exceptional as always, this is my 5th or 6th project with Gabriel and everyone one has been a smooth and efficient process with no delays. Have already engaged with him for another contract.

Verified

Gabriel has a great understanding of creating financial projections, highly recommended and will definitely work with him again.

Priced in dollars, not in hours: from $1,499

Financial modeling services priced as fixed fees, quoted before any work begins. The $1,499 starter covers early-stage companies and single-purpose models. Larger engagements, full transaction modeling, multi-entity rollups, LBO and SPV waterfalls, are scoped with you on a call. You see the fixed fee before any work begins.

Most starters ship in 3-10 business days. Custom work runs 2-4 weeks.

Starter

$1,499

A three-statement model or fundraising forecast for a single entity. Shipped within 10 business days, ready to send to investors.

Custom · Most common

Fixed fee

DCF, LBO, scenario suite, multi-entity rollup, or transaction overlay. Scoped with you on the call, quoted as one fixed fee.

M&A engagement

Retainer + Success

For live transactions: a monthly retainer covers the work, credited in full against the success fee at close.

Gabriel I. Simion

You work directly with me

Three-statement, DCF and LBO models structured on Wassily Leontief's Input-Output method: every formula traceable, every output reconciled. The architecture stays on my desk. The assumptions reflect how your business actually operates, not a generic SaaS shell pulled off a template.

  • Big 4 trained: senior advisor and consultant inside two of the Big 4 firms
  • 500+ models delivered: 3-statement, DCF, LBO, M&A, fundraise
  • Direct client work. No analyst hand-off, no 15-minute billing increments
  • Sectors: SaaS, services, manufacturing, energy, crypto

Need a second pair of eyes on your model?

Talk it through, or send the existing model. Either path lands you in front of Gabriel inside a business day.

Free Strategy Call

20 minutes with Gabriel

Bring the question: a fundraise, a transaction, a model you don't fully trust. Walk away with a clearer next step. If the math is not there, Gabriel will tell you. If it is, he'll help you prove it.

Free Model Review

Send your model

Share the current model or board pack. Gabriel reviews the assumptions, structure, and outputs, and replies with the three changes that matter most.

Questions I get on every first call

Price, timeline, what you need to bring, and the Excel-vs-Sheets question come up almost every time. Short answers below, longer answers on the call.

How much does a financial model cost?

Market rates for consultant-built models run anywhere from $1,000 to $50,000 depending on complexity. My starter is $1,499 for a single-entity three-statement model or fundraising forecast. Transaction models, LBOs and multi-entity work are quoted as one fixed fee on a call, before any work begins. No hourly billing, no surprises on the invoice.

How long does it take to build a financial model?

Starters ship in 3 to 10 business days. Custom transaction work runs 2 to 4 weeks. If you have a board meeting or an investor deadline, tell me the date on the call and I will tell you honestly whether it is achievable.

What do you need from me to start?

Your historical financials (exports from your accounting system are fine), your current model if one exists, and one working session to map the drivers. Phase 1 is built side by side; after that, most of the work stays on my desk.

Will I be able to update the model myself?

Yes, that is the point of the architecture. Every formula is traceable, the inputs sit on dedicated assumption tabs, and you get a structure walkthrough at handover. Clients change scenarios live in board meetings without me in the room. And if you would rather have the model run and updated every month, that is my fractional CFO and FP&A retainer.

Excel or Google Sheets?

Either. Most investor and M&A work happens in Excel, and that is my default. If your team lives in Google Sheets, the model is built natively there, not converted.