Assumptions are the backbone of every model. We're giving them a home.

Every deal — an M&A transaction, a debt or equity financing, an infrastructure project finance close — runs on a financial model, and every model runs on thousands of individual assumptions: prices, rates, dates, contract terms, market data, and judgment calls made along the way.

Today, almost none of those assumptions have a real home. They're scattered across emails, quotes, PDFs, spreadsheets, and memory. Nobody can say with confidence who set a given number, when, or on what basis — so models silently go stale, and every deal team rebuilds the assumptions book by hand for diligence.

What AsIOm does

AsIOm is a canonical register for transaction assumptions. Each assumption — a specific cell or named range in a model — is linked to metadata that lives centrally: its value, source, owner, review status, confidence, and full change history. The workbook holds the link; the record of truth lives on the server, so it survives file copies, new versions, and new hands on the model.

It's built native to the tools deal teams already work in — Excel, Word, and Outlook — rather than asking modellers to adopt a separate system. Assumptions move through structured review to sign-off, and a locked register gives you an audit-ready, defensible record of every input on demand.

Who it's for

AsIOm is built for deal teams working M&A, debt & equity financings, and infrastructure project finance — anywhere a financial model has to withstand scrutiny from counterparties, lenders, or auditors.

Where we are

AsIOm is an MVP in active development. We welcome demo and investor enquiries as we build toward a full release.

Get in touch