The only AI platform for accounting firms.
Execute audit engagements alongside your staff. Enforce audit quality before review. Turn every document into intelligence for your advisory practice.
Trusted by Leading Firms
The Platform
Three layers. One system.
Every layer builds on the last — from execution to quality to compliance.
The Data Platform
Every document. Every engagement. One knowledge graph.
Every document Tellen touches — across audit, tax, and advisory — feeds a unified data platform deployed in your infrastructure. Your firm’s data stops being a byproduct of compliance and starts being the foundation of your advisory practice.
Provide real insights to your clients. Differentiate your firm with data no one else has. Everybody’s talking about it. We’re doing it.
Intelligence your firm can surface:
Gross margin benchmarks across industries
Average debt servicing costs by sector
Cross-engagement trend analysis
Across every engagement your firm has ever completed.
Why Tellen
Built different. Deployed different. Priced different.
We build to suite and integrate everywhere — a horizontal platform across all of your tooling, built by world-leading integration engineers.
Your Infrastructure
Tellen deploys directly into your Azure, AWS, or GCP environment. Client data never leaves your infrastructure. SOC 2 Type II certified.
No New Software to Learn
Our agents learn from your methodology, then train your staff while they work. Microsoft Add-in, Chrome extension, Claude and Copilot plugins — deep integrations across your entire tool stack. Value on day one. No new login.
Usage-Based Pricing
Pay per workflow execution — not per seat. Pricing tied to the value Tellen delivers, not the number of people at your firm.
From demo to deployment in 30 days.
We don’t just show the platform. We build with you.
30-minute platform demo
30-day free trial in your environment
Hands-on deep dives with Tellen forward-deployed engineers