Engagement letters on file
Send, sign and keep the agreement attached to the client record it governs, not in a folder somewhere.
For professional service businesses
Engagements that stay organized from first call to final invoice.
Professional work is judged on rigour, and the admin should match. KRBR keeps the engagement letter, the billable time, the documents and the invoice history together for every client you serve.
14 days freeNo card requiredFrom $10 per month
The parts that quietly cost you
Engagement letters stored separately from the work they govern
Billable hours reconstructed at the end of the month
Client documents requested twice because nobody could find them
Invoices sent late because assembling them takes an evening
One connected workspace
From first inquiry to final payment
Time you actually captured
Track billable hours against the engagement as the work happens, then turn them into an invoice without re-entry.
A document trail per client
Uploads, deliverables and signed records stay organized by client and project, ready when you need them.
Grounded AI answers
On higher plans, ask questions across your uploaded documents and get answers drawn from your own files.
Questions Professional services businesses ask
Can I bill hourly and by fixed fee?
Both. Invoices can combine tracked hours, flat fees and expenses as separate line items on the same bill.
Where do signed engagement letters live?
With the client and project they belong to, alongside the invoices and documents for that engagement.
Is client data separated between companies?
Each company workspace keeps its own clients, documents and branding, with access scoped to the workspace.
Run your professional services business in one calm place.
Bring the clients. KRBR will help you carry the rest — starting at $10/month.
Start free