Smart people make expensive decisions on stale information every day. A buy-side analyst building a thesis from a 10-K that closed its window 90 days ago. A VC partner running diligence on a company whose only "filings" are a deck and a database row. A corporate strategist tracking competitors via a folder of news alerts. We have not solved this. We have layered AI assistants on top of it.
The premise of Sonarna is that the gap between "what's actually happening at a company" and "what shows up in the document you're allowed to use" is enormous, and that gap is closeable today. Not with insider information — never with insider information — but with the OSINT signal that companies emit constantly: their press, their hiring posts, their websites, their reviews, their social presence. None of it is hidden. All of it is hard to assemble.
The wedge
We started with one observation: a private AI company we tracked had four times the news coverage of a $2 trillion public peer. The 10-K would have shown us zero of the private company. It would have shown us the public peer at a level of detail that, in 30 days of headline volume, was already less informative than the press.
This is the kind of asymmetry we exist to make visible. Not because that single company is more important than its larger public peer — it isn't — but because the public/private taxonomy stops being useful when you're trying to decide what to do this week.
What we do, in one paragraph
Sonarna tracks any company you name — public ticker or private startup — across several signal streams: news with sentiment, social mentions from public forums, change events on the company's web presence, and (for public peers) price and market-cap data. Each stream is normalized into one schema. The dashboard reads natively on every name; the side-by-side view pairs any public ticker with any private startup using the same metric grid.
Every Sonarna feature gets measured against one question — not "is this technically interesting," but "does it tell a decision-maker something useful before the document that would tell them otherwise lands."
Where we are today
News and sentiment are live on every company you add today. Side-by-side comparison between public and private peers is live. Market data for public tickers — price, market cap, 30-day return — is live, refreshed during market hours. Social sentiment is live for the forum topics you select per company. Change-event detection covers news categorization and a set of website-diff signals.
Who this is for
If you are a VC associate trying to triangulate a private company you cannot find in any database — Sonarna is for you. If you run corporate strategy and your competitor map is six tabs of news alerts and a chat channel — Sonarna is for you. If you are a buy-side analyst whose process starts with "what changed this week on these twenty names" — Sonarna is for you. If you are a brand or comms team watching what is being said about you across press and social — Sonarna is for you, too.
If you are looking for a tool that tells you what to buy, sell, or hold — Sonarna is not for you.
What we do: ship when something is real, hold when it isn't, and resist every product instinct to add a feature whose only purpose is to sound impressive. The audience we serve reads the financial press, not clickbait. The product is built for them.