Ready-to-use standard software that becomes custom-built as your organisation requires. AI built in everywhere.
Three applications built by chartered accountants, up and running from day one. Each one is a foundation: workflows, fields, automations and integrations then adapt to your business, all the way to fully custom, without switching tools or re-keying data.
SoonE-invoicing
From quote to payment: invoices compliant with the French e-invoicing reform, sent and received from a single tool.
SoonBookkeeping
Accounting fed automatically by bank feeds and received invoices, reviewed with the help of AI.
SoonPractice management
Running the accounting firm: from engagement letter to fee invoicing.
Artificial intelligence is built into every product, not sold as an add-on.
Get notified at launchThe same team designs, connects, automates and hosts what your organisation needs, beyond the standard range.
Tailor a standard application to your processes, or build the complete business tool: CRM, client portal, internal app.
Automated workflows, document reading and filing, AI agents connected to your tools to remove repetitive tasks.
Connections to your accounting software, ERP, banks and approved e-invoicing platforms. Reliable sync, no double entry.
Design, hosting and maintenance of websites and web apps, domain names and professional email.
KELZEO is not a random name. It's short, distinctive and memorable — unlike anything in our space. A real brand, identifiable and built to last.
KEL evokes the core, control, the "kernel" — the nucleus of a system.
ZEO conveys fluidity, flow, energy — something that moves without friction.
Together, KELZEO represents a central system that organizes, connects and circulates information. A technology foundation that structures the business, simplifies processes and automates what can be automated.
A name that isn't locked into any industry or company size. Because our ambition goes beyond a single product.
Modern, credible, worthy of what we're building. KELZEO is a name made to last — and to grow alongside our clients.
KELZEO is not just a name. It's the translation of our vision: a central, intelligent system capable of growing everything we build around it.
Three pillars to sustainably transform your organization.
Every solution is designed around your business processes. No compromises, no workarounds — a tool that fits your organization.
Eliminate repetitive tasks with intelligent workflows. Engagement letters, reminders, document collection — everything becomes automatic.
Connect your existing tools in depth. Open APIs, real-time sync, no double entry — a unified ecosystem.
Off-the-shelf software imposes their rules on you. At KELZEO, it's the opposite: we build the tool that adapts to the way you work. Every workflow, every field, every automation is designed for your business reality.
Tell us about your project and our team will get back to you.