Business document protection — control every file, even after you send it.
Your contracts, invoices, COIs, and licenses — in one place you control. Track who opens each one, update it in place, and take it back even after they’ve seen it.
No login for your clients. They just tap the link.
Form W-9
via leveair · with your EIN
The problem
The moment you email a document, you lose control of it.
It lives in their inbox forever — you can't see if it's opened, fix a mistake, or take it back. That's not protection. That's hope.
What protection means
Protected isn't stored. It's controlled.
You stay in control
Send any document as a link you own — watch every open, update it in place, and take it back anytime. Drive and email can't do that.
It never goes out of date
leveair reads the expiry off every COI, license, and contract and warns you before it lapses — so you never send an expired file.
You collect what you need back
Request documents with one link and gather W-9s, COIs, and signed contracts in one place — logged with identity, never lost in a thread.
Go deeper
Everything that puts your documents at risk — and how to fix it.
Client portal for accountants
Collect, request & track client documents — no client logins. For accountants & bookkeepers.
Read moreCollect documents from clients
Send one request link — clients upload in one tap, no account, no login.
Read moreSecure file sharing for accountants
Send returns, statements & letters as a secure link — tracked, expiring, revocable.
Read moreWhy emailing attachments is risky
The 2026 data on what a stray attachment really costs.
Read moreDocument health & expirations
Track what expires — COIs, licenses, contracts — before it lapses.
Read moreTrack insurance certificates (COIs)
Never carry a lapsed COI — watch every vendor's expiry date.
Read moreSend your W-9 in one tap
Always the current version, opened with no login, fully tracked.
Read moreFree W-9 generator
Fill out the official IRS W-9 online, sign it, and keep it ready to send.
Read moreFree contract tracker
See every renewal date and auto-renewal notice deadline.
Read moreWhy it matters
The documents you can't control are the ones that cost you.
A lapsed certificate loses the job; a contract you can't take back ends up in the wrong hands. Protection is the difference between looking buttoned-up and getting caught off guard.
Anyone
can forward an attachment once it leaves your outbox — you'll never know who saw it
1 year
an auto-renewing contract locks you in when the notice date slips by
Forever
how long a sent attachment lives in an inbox you no longer control
Questions, answered
What does “business document protection” actually mean?+
Three things: you keep control of a document after you send it (watch it, update it, revoke it), it never silently goes out of date (we track every expiry), and you can collect documents back in one secure place. It's the protection a folder or an email can't give you.
Isn't my Google Drive already protecting my documents?+
Drive protects a file sitting still. The moment you email or share one, you lose control of it — you can't see if it was opened, you can't fix a mistake, and you can't take it back. leveair protects the document even after it leaves your hands.
What kinds of documents is this for?+
The documents that run a business and cost you when they go wrong: contracts, invoices, certificates of insurance (COIs), W-9s, licenses, and agreements.
Do the people I send to need an account?+
No. They open your link in their browser in one tap — no login, no app. For sensitive documents you can require a one-time email check.
How much is it?+
Free to start — unlimited branded links and you see every open, no credit card needed. Pro is $49/month (or $490/year, two months free) and adds your logo on every link and email, AI that tracks each document's dates, more storage, and multiple organizations.
Put every important document under your control
One link you control — opened in a tap, with no login for the people you send to.
Start free