About SommeSi
To perform with confidence, a company needs the right people, the right processes, and the right tools.
That’s why SommeSi harmonizes teams, tools, and processes to support your long-term and sustainable growth.
50+
30+
Customers supported in 2024
SaaS deployments in 2024
Why us?
Over 50 agencies from 20 to 400 collaborators helped in 2024
100% tailor-made: each intervention is build specifically for your needs
Two complementary solutions:
• Expert placement: Outsourcing
• Tool deployment: Integration
3 scope to help you scale: People, product, process
What we do
Specialized in operational support for businesses.
Helping structure and sustain business growth over the long term.


SaaS deployment
ERP, accounting and payroll tools, HRIS: SommeSi selects and implements the best SaaS solutions on the market to streamline your accounting, financial, and HR processes.
On-demand experts
CFOs, Finance Managers, Management Controllers, HR Directors, or HR Managers: all our experts work on a part-time basis within your organization to free you from operational constraints.
SommeSi has transformed our business management. Their expertise in software integration and operational support has been essential to our growth.
An outsourced CFO from SommeSi works with us regularly. They implemented an ERP and helped reduce our outstanding billable amount from €500K to €50K.