Accurate Financials for Successful Transactions
Clear, actionable financial insight, backed by a track record of 500+ delivered projects. Gabriel helps founders and investors make confident decisions, defend the numbers in front of counter-parties, and move forward faster.

Free Model Audit
No strings attachedSend Gabriel your existing model. He'll review the assumptions, structure, and outputs - and reply with the three changes that matter most.
The Stakes are High. You Shouldn't Walk Alone.
Selling your business? Buying a competitor? Don't go in blind.
Most M&A consultants hide behind complex terms. Gabriel gives you the clarity you need to make one of the biggest decisions of your life with total confidence.
Financial Modeling Services
For fundraises and decisionsThree-statement models built on Leontief's Input-Output method. Investor-ready, audit-ready, from $1,499.
Explore the engagementFractional FP&A Services
For founders without a CFOOutsourced finance function: budgeting, forecasting, monthly board packs, KPI dashboards, cash flow management.
Explore the engagementBusiness Valuation Services
For fundraises, M&A and disputesDefensible company valuations using DCF, comparable companies, precedent transactions and asset-based methods.
Explore the engagementSell-Side M&A Advisory
For founders ready to exitEnd-to-end exit advisory: valuation, CIM, buyer outreach, due-diligence defense. Position for a premium exit.
Explore the engagementBuy-Side M&A Advisory
For acquirers and investorsTarget screening, Quality of Earnings, synergy modeling, SPA risk allocation. Find the truth before you sign.
Explore the engagementGabriel I. Simion
You work directly withFounder of Simion Advisory Partners. Every engagement is delivered by Gabriel personally - not handed to a junior analyst. 500+ financial models, valuations and transaction artifacts shipped to founders, boards and counter-parties.
- 500+ models, valuations and transaction artifacts shipped
- Cross-sector: energy, tech, services, industrials
- Engagements from seed-stage to mid-market M&A
- Built on the Leontief Input-Output framework
Client Testimonials
Anonymized reviews from clients across financial modeling, M&A, and strategic advisory engagements. Identities protected by NDA.
Free Strategy Call
20 minutes with GabrielBring 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.
Three-statement models, built on the Leontief Method
The Modeling FrameworkEvery model Simion Advisory ships is built on the Input-Output framework developed by Dr. Wassily Leontief - the structural approach that won the 1973 Nobel Prize in Economics.
Drivers in. Three linked statements out. Move one assumption and the entire ecosystem updates - investor-ready scenario testing, not a static spreadsheet.
Tailored Financial Modeling for Investment Rounds.
When you stand before investors, your numbers must tell the right story. If you are moving fast and need a professional financial model or an updated forecast, we can deliver a high-precision version in just a few days.
Prices start at $1,499 and adjust based on your company stage and data complexity. Configure your financial model below.
Financial model configurator. Starting from $1,499
Step 1: Select the Investment Stage
Tell Gabriel about your situation.
One short message. Gabriel personally replies within one business day - no automated funnels, no sales rep.
17 Virtutii Street, Sector 6, 060782 Bucharest, ROMANIA
Mon-Fri: 9AM-6PM EET

Just three things and you're done - Gabriel reads every reply personally.