Build and deploy a finance data project for |
Migration, Dashboards, Training — everything you need to switch to Power BI. ROI guaranteed in 4 months.


Sound familiar?
These problems slow down hundreds of finance departments every day
Reporting takes days
Your teams spend hours copying and pasting between Excel files, consolidating data from different sources, and reformatting the same tables every month.
Errors go unnoticed
You've already discovered a formula error... after presenting the numbers to the management committee. And you wonder how many other errors are still hidden.
No one knows which version is correct
"Budget_v3_final_FINAL2.xlsx" — sound familiar? Your files multiply, versions accumulate, and finding the right data becomes a puzzle.
Decisions wait for data
Reports always arrive late for committees. By the time the numbers are ready, they are already obsolete. You're driving with the rearview mirror.
The transformation
From Excel struggles to Power BI serenity
Before (Excel)
After (Power BI)
My services
Custom solutions to modernize your data management
Power BI Dashboards
Finance & Real Estate Reporting
Imagine opening your laptop Monday morning and instantly seeing the health of your business. No more manual consolidation, no more waiting — just the insights that matter, ready to use.
Ideal for: Monthly reporting, budget tracking, profitability analysis
Automation
Power Automate & SharePoint
While you sleep, your processes work. Invoice validation, data consolidation, alerts... Free your teams from repetitive tasks so they can focus on what really matters.
Ideal for: Invoice validation, data consolidation, automatic alerts
Data Team Reinforcement
Business Analyst & Data Analyst
Your data project needs extra hands? I join your teams as a Business Analyst or Data Analyst to accelerate your sprints, unlock complex issues, and transfer skills.
Ideal for: Data projects requiring finance and BI expertise
Cognos/SAP/Yardi/Oracle Reports
Power BI & Report Builder
Your data is trapped in legacy systems? I create Power BI reports and Report Builder listings connected via ETL to your existing sources. Modernize your reporting without touching your ERPs.
Ideal for: Companies with legacy ERP wanting to modernize their reporting
Cost+ Costing Models
NRVAT, TP Margin & Audit Trail
Transfer pricing, internal recharging, intercompany margins... These complex topics deserve flawless traceability. Deploy costing models with complete audit trail, from costs to revenues.
Ideal for: Groups with transfer pricing and internal recharging challenges
Excel/PowerPoint → Power BI Migration
Modernizing your reports
Your Excel files and PowerPoint presentations have served well, but they've reached their limits. Transform your static dashboards into interactive Power BI reports without losing your history or disrupting your teams.
Ideal for: Companies with Excel files or PowerPoint reporting presentations
Custom Training
In-company
The best technology is worthless without the skills to use it. I train your teams on Power BI and Power Platform with your real data, for immediate autonomy.
Ideal for: Finance, controlling, IT teams
Data & Power BI Coaching
Individual sessions
Accelerate your skill development with individual coaching adapted to your level. From discovery to advanced expertise, progress with an expert with 10+ years of experience.
Ideal for: Professionals looking to level up their Power BI skills
How it works
A simple and transparent process, from idea to production
Diagnosis
We analyze your needs, existing data, and objectives. Free, 30 minutes.
Proposal
I present a custom solution with timeline, budget, and estimated ROI.
Execution
I develop your solution in short sprints, with regular demos.
Training
Your teams are autonomous. I remain available for support.
What they say
Concrete results for companies like yours
“We used to spend 3 days a month consolidating our Excel reports. Today, everything is automatic and updated in real-time. Our teams can finally focus on strategic analysis rather than data entry.”
“Achille understood our business challenges from the first meeting. The dashboard he created has become the central tool for our board meetings. Even the most change-resistant have adopted it within weeks.”
They trusted me
10+ years supporting Finance, Real Estate and IT departments

AXA Group Operations
Finance2 years 10 months mission
Power Platform & Data Consultant
Power BI costing model for subsidiaries with VAT/NRVAT allocation keys

About
Achille Segnou

After 5 years at PwC in finance consulting and 10 years of experience in financial management, I created ACS PowerData to help companies truly leverage their data.
Chartered accountant and Microsoft Power BI certified (PL-300), I speak both the language of finance professionals and data analysts. That's what makes the difference.
Blog & Resources
Articles, tutorials and best practices to master Power BI and data
Let's talk about your project
Book a free 30-minute consultation to discuss your needs.
Or email me directly contact@acs-dataformation.fr