The venture operating system

One workspace for the whole of venture.

Cairn brings pipeline, portfolio, fund operations, and founder collaboration into one deliberate workspace — guided by Atlas, an AI copilot grounded in your data.

cairn.app — Pipeline · Portfolio · Fund · Atlas
Pipeline · Portfolio · Fund · Atlas
Which one are you?

Built for operators on every side of the table.

What's inside

Everything a modern investor actually uses.

No plugin marketplace. No half-features. Six deliberate modules that share the same data.

Pipeline

Board, analytics, AI matches, and shared deal flow across your team.

Portfolio

Company hubs with KPIs, health scores, valuations, and quarterly updates.

Fund Ops

Capital calls, distributions, waterfalls, and LP-ready returns.

Atlas AI

A grounded copilot that reads your data, proposes actions, and waits for approval.

Data Room

Diligence, documents, and e-sign — versioned and access-controlled.

Investor Updates

AI-composed monthly and quarterly updates with real KPIs and voice.

Principles

Software that gets out of the way.

We build for the operator: fewer tabs, less ceremony, faster answers. Cairn is opinionated where it should be and quiet where it shouldn't.

  • Grounded, not generative
    Every AI action is tied to your data — no hallucinated numbers, no confident nonsense.
  • Human-in-the-loop
    Atlas proposes; a person approves. Every action leaves an audit trail.
  • One workspace, four seats
    VCs, angels, founders, and LPs share the same graph — with the right walls.
  • Numbers first
    IRR, TVPI, MOIC, DPI — the math is auditable and the exports are LP-ready.

See Cairn on your own deals.

Thirty minutes with our team. We'll show you the product on a live workspace and answer every question in the room.