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Overview
Rivage builds an open, interoperable payroll platform for French accounting firms to manage payroll and social declarations. Its SaaS payroll OS automates regulatory compliance, strengthens audit trails, and improves DSN calculation reliability using an AI-powered workflow that handles French collective agreements. The product is designed to integrate with existing accounting and HR tools and to evolve with regulations, enabling payroll managers to offer higher-value HR advisory services. The goal is to cover about 150 collective agreements (roughly 95% of the market) and expand through partnerships, supported by funding to accelerate rollout.
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Simplify's take
What believers are saying
- By February 2026, Alassio was live at eight partner firms.
- It plans 150 collective agreements by year-end 2026, covering 90%+ workforce.
- Ten integrations with HR and accounting tools strengthen switching costs in 2026.
What critics are saying
- Rivage still fights entrenched legacy vendors that already own payroll workflows.
- Missing 150-agreement coverage by December 2026 leaves edge cases exposed.
- A payroll error triggers French penalties, lawsuits, and instant account churn.
What makes Alassio unique
- Alassio, ex-Rivage, targets French accounting firms with an open payroll OS.
- Its AI workflow audits DSN and collective-agreement calculations across 40 CCNs.
- Partech-backed founders built production software within six months, then renamed to Alassio.
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