Polsia-powered

The operating system
for scaling Vesper

Vesper helps accounting firms run their business. VesperOS helps Vesper run theirs. Growth intelligence, competitive tracking, and autonomous operations for the team behind the product.

21,000

Target firms in France

2020

Founded in Paris

24/7

Autonomous operations

The challenge

Building SaaS for accounting firms means fighting on three fronts at once

Product vs. Sales

Every hour spent on demos is an hour not spent on the product. Scaling founder-led sales without breaking the feedback loop is the hardest transition.

Unicorn Competitors

Pennylane and Cegid are billion-euro companies. Competing head-on is suicide. Winning means owning the internal ops layer they ignore.

Market Timing

Mandatory e-invoicing is reshaping the entire French accounting ecosystem. Firms that digitize now will thrive. Vesper needs to be their first call.

What VesperOS does

Autonomous growth infrastructure for the Vesper team

Competitive Intelligence

Track what eexpi, CABEO, Welyb, and the big players are shipping. Know their pricing, features, and positioning before your next sprint planning.

Pipeline Automation

Identify, qualify, and reach accounting firms still running on spreadsheets. AI-powered outreach that sounds like Michael, not a robot.

Growth Dashboard

Real-time visibility into the metrics that matter: active firms, feature adoption, churn signals, and expansion revenue potential.

Daily Progress

Every day, Polsia ships work: research, outreach, analysis, engineering. No standups, no blockers, no waiting. Just forward motion.

The vision

Every accounting firm in France, running on Vesper

Pennylane and Cegid own the ledger. Vesper owns the firm. VesperOS is how we get there.