Chartered accounting firm

The collaboration space for tech startups and their accounting firm

Centralize documents, missions, and conversations with your firm in one place. Full visibility on progress, your pending validations, and your deliverables.

300+
Missions delivered
40+
Startup clients
15
Experts available
99.9%
Platform uptime

Why mydeltaspace

Built for founders who want a responsive firm, not a cluttered inbox.

Full traceability

Every conversation, document and action is timestamped and accessible to the right people - no more lost emails.

Real-time progress

Your missions display their milestones, your pending actions, and the status of each deliverable. No need to ping anyone to know where things stand.

Multi-tenant confidentiality

Each company sees only its own data. The firm orchestrates, clients access their perimeter, providers see the missions they are staffed on.

Hosted in Europe

Data stored in Frankfurt (Neon) and Paris (Vercel), GDPR-compliant. Migration to a 100% French host remains possible.

How it works

The lifecycle of every mission, from kickoff to closing.

1

The firm opens a mission

The partner creates a mission in the client's space, defines milestones, and invites the right consultants or external providers.

2

Everyone works in the same place

Documents, action items, and discussion thread: a single workspace per mission, accessible to every member assigned to it.

3

The client follows and validates

A clear list of expected client actions, simple electronic signature on documents, and email notifications when something needs attention.

4

Archive and history

Every closed mission remains accessible. The full history of exchanges and deliverables is preserved under your responsibility.

Who is mydeltaspace for?

Startup founders

Startup founders

You want to know where your closing stands, what to sign this week, and who handles your VAT - without phoning three people.

Accounting and finance managers

Accounting and finance managers

You exchange daily with your firm. mydeltaspace replaces email threads with one clear conversation per topic.

Independent experts

Independent experts

You contribute on specific missions. Manage your availability, missions, and deliverables from a single interface.

Ready to structure how you collaborate with your firm?

Accounts are created on firm invitation. Contact us to get started.