Sellsy

What is Sellsy?

Sellsy is a French-built business management platform that combines CRM, quoting, electronic invoicing, marketing campaigns, and cash flow management in a single product. Unlike tools that bolt invoicing or marketing onto a core CRM, Sellsy has built each module as a first-class citizen from the ground up with a strong focus on French regulatory compliance and GDPR.

Who is it for?

Sellsy targets French and European small to mid-sized businesses that want to consolidate their commercial, marketing, and administrative workflows in one place. It's particularly well-suited for companies that need both a sales pipeline and robust invoicing (including legally-compliant electronic invoicing) without managing separate systems.

Strengths

• French data sovereignty — data hosted in France with RGPD (GDPR) compliance and cybersecurity focus, a real differentiator for French businesses with regulatory requirements.
• Integrated invoicing — legally-compliant electronic invoicing, online payments, and automatic payment reminders built into the same platform as the CRM.
• Cash flow management — budget forecasting and budget-vs-actual tracking connect directly to sales activity.
• Marketing built in — email and SMS campaigns, landing pages, A/B testing, and marketing automation without a separate tool.
• Strong onboarding — personalized support and training resources are frequently cited in customer reviews.

What to consider

• Pricing is in euros and best suited to European markets — international teams may find localization limited.
• All plans require a 12-month commitment; there's no month-to-month option.
• The breadth of the platform means individual modules (CRM depth, marketing automation sophistication) don't match dedicated best-in-class tools.

Bottom line

Sellsy is the strongest all-in-one option for French SMBs that want CRM, invoicing, and marketing under one roof with local data hosting and support. If your team operates outside France or needs deep specialization in any one category, explore more focused alternatives.