Logiciel startup SaaS — CRM, MRR, facturation

I Who it’s for

A back-office for SaaS that want to avoid the Notion + Stripe + Docusign patchwork, without paying for Salesforce.

SaaS startups accumulate tools by default: every new need, a new subscription. The stack becomes unstable, and manual re-entry is endless. Four profiles keep coming up.

Founder seed stage (2–10 people)

You manage sales, legal, accounting—between two features. Trello + Notion + Excel works, until it doesn’t.

One tool covering quotes, MSA contracts, invoices, and cash tracking. Admin becomes manageable by a single person.

Head of Ops Series A (10–50)

You discover that the stack by accumulation costs you in syncs and false data. Client onboarding = a maze.

CRM + recurring billing + onboarding projects + e-signature, all in one tool. The MRR report no longer needs 4 sources.

Series A/B CFO or Finance Director

Your investors ask for monthly MRR, ARR, churn, and expansion reports. Your data lives in Stripe on one side, Pipedrive on the other.

Real-time MRR/ARR dashboard powered by active subscriptions and issued invoices. The board pack becomes an export, not a rebuild.

Customer Success Manager

You track client cohorts by onboarding stage, but the info gets lost between your internal Slack, Notion and client emails.

Onboarding projects linked to the account record, dedicated client portal, shared milestones. The cohort is managed, not re-explained.

II The unified back-office stack

CRM + Recurring billing + Projects + Contracts — in one tool that talks to Stripe and Pennylane.

The visual breakdown below: the typical problem of an accumulated stack, Orizen’s unified stack, SaaS-specific features (MRR, prorated charges, MSA), how Orizen scales from Seed to Series B+, and a CTO testimonial.

The known problem

Hyper-growth startups
are drowning in their own tools.

You’ve solved the product. But the back-office looks like this:

Notion Patched-together CRM

Stripe Billing

Jira Project management

Excel Accounting tracking

Result: 4 subscriptions, 4 manual exports, 4 inconsistency risks. And as soon as the team grows, everything spirals out of control.

The solution

Unified back-office stack.
One tool, the entire chain.

CRM

Prospects, clients, pipeline, full history. Your MQLs, SQLs and active accounts in one place.

Recurring billing

Monthly/annual subscriptions, upgrades, credit notes, deposits. Directly linked to CRM accounts.

Project management

Client onboarding, deliverables, milestones. An accepted quote automatically generates a project.

Contract signing

MSA, work orders, NDA — e-signed directly from Orizen. eIDAS, multi-signatory.

Connected website

Landing page, showcase site or e-commerce. Incoming leads go straight into the CRM.

SaaS-specific

Built for SaaS models.
Not a patched-together generic ERP.

Monthly and annual billing

Manage your recurring subscriptions with automatic billing, prorated charges for plan changes, and automated dunning for failed payments.

Plan upgrades and downgrades

When a client switches plans mid-month, Orizen automatically calculates the pro-rata and issues the corresponding commercial document.

MRR dashboard

Visualise your MRR, ARR, churn, and expansion revenue directly in Orizen. Automatically fed by your invoices and active subscriptions.

SaaS contracts with e-signature

MSA, work orders, NDA, licence agreements. Sign online with clients, no external Docusign — and find everything in Orizen.

Pennylane integration for your board

Orizen natively connects to Pennylane. Your invoices and credit notes automatically sync with your accountant — zero manual entry.

Scalability

Scale with you.
From 2 co-founders to 200 employees.

Seed

2–10 people

Basic CRM
Quotes and invoices
Contract signing
Showcase website

What a B2B SaaS CTO
told us after 3 months.

III How it works

Migration of 4 tools in 5 business days, not a 6-month project.

Three clear milestones: Day 1 data import, subscriptions + MRR Week 1, and investor dashboard Month 1.

Day 1 — Data migration

Your Stripe customers and invoices imported

Import accounts/contacts from your current CRM (HubSpot, Pipedrive)
Stripe customer sync
First recurring invoice issued in Orizen

Week 1 — The SaaS cycle

Subscriptions, MRR and operational contracts.

All active subscriptions configured
MSA/NDA templates configured with e-signature
First pro-rata upgrade handled automatically

Month 1 — Investor management

The board pack is generated in a single export.

Real-time MRR/ARR dashboard
Tracked client onboarding cohorts
Automated monthly Pennylane export

IV FAQ

Answers to the questions we’re asked most often.

Why does a SaaS startup need a unified back office?

A B2B SaaS startup typically accumulates tools like Pipedrive or HubSpot (CRM), Stripe or Chargebee (billing), Notion or Linear (projects), Docusign (contracts), Excel or Pennylane (accounting). Each tool costs between €50 and €300/month and requires manual synchronisation. Beyond 10-15 people, DIY integrations become unstable. A unified back office eliminates re-entry, ensures data consistency and saves the ops team several hours per week.

How does Orizen handle subscriptions and pro-rata calculations?

Each client has an active subscription with a plan, frequency (monthly/annual) and anniversary date. When a client switches from the Starter plan to the Pro plan mid-month, Orizen automatically calculates the pro-rata: credit for the remaining Starter days, Pro invoice from the change date. The dashboard MRR updates in real time.

Does Orizen replace Stripe for SaaS payments?

No, Orizen complements Stripe. Stripe processes payments (card, SEPA, bank transfer). Orizen generates legally required commercial and fiscal documents (quotes, invoices, credit notes), manages dunning, calculates MRR/ARR and sends data to your accountant. Stripe + Orizen is the standard combination for serious B2B SaaS: the fintech for cash, the ERP for legal and management.

How does Orizen scale from 5 to 200 people without starting over?

The modular architecture lets you enable/disable modules based on your stage: Seed (CRM + invoicing), Series A (+ recurring billing + MRR), Series B (+ multi-team + advanced permissions + API). No data migration between tiers—you activate additional modules, and the history remains. It’s the opposite of the "change ERP every 3 years" model.

How much does Orizen cost for a French SaaS startup?

Orizen pricing is per active user. B2B SaaS alternatives (Chargebee, Recurly, Maxio) start at €250–500/month for recurring billing alone, plus CRM, contracts and projects. Orizen is significantly cheaper for equivalent functionality—especially relevant for seed and Series A startups monitoring their burn rate.

Is Orizen ready for the mandatory 2026 e-invoicing requirement for B2B SaaS in France?

Yes. Between VAT-registered businesses established in France, invoices go through an approved platform (formerly PDP): receiving mandatory for all since 1 September 2026, issuing for large and mid-sized companies since that date and for SMEs by 1 September 2027 at the latest. Orizen is not an approved platform: it prepares your recurring invoices and sends them through two partner approved platforms, B2Brouter and Super PDP, with no manual intervention from your team.

V Our belief

A well-equipped SaaS startup reinvests its cash in the product, not in the admin stack.

For the first 100 customers of a B2B SaaS startup, the back-office typically consumes between 2 and 3% of the team’s total time—through admin, syncs, and manual handling of edge cases. At 1,000 customers, it’s between 8 and 12%.

This percentage is invisible in the P&L: it doesn’t appear as costs or losses. It shows up as longer time-to-market, unreleased features, hiring plans scrapped because burn is higher than expected.

We’ve seen too many Series A startups spend 6–8 months of roadmap on back-office overhauls when the accumulation became unmanageable. Too many founders burning out on PDF invoices before getting back to the product.

So we built Orizen for SaaS: a back office that scales with you, talks to Stripe and Pennylane, and lets you reinvest time in what really matters—your product, your customers, your market.

Orizen, your SaaS startup’s back office. Scale without the chaos.