Riverside Fit-out
€18,400
3 weeks
AWARDED ✓Baltic Interiors
€19,750
2 weeks
Atlas Group
€18,900
5 weeks
NorthCraft
€21,200
4 weeks
4 SEALED BIDS OPENED TOGETHER · BEST FIT AWARDED
Tender · for buyers collecting bids
Sealed bids. Opened together. Awarded fairly.
Post what you need and set a deadline. Vendors each place one sealed bid — nobody sees anyone else's until the moment it closes. Then every bid opens at once, you pick the winner, and it becomes a signed agreement you can verify — not a promise buried in an inbox.
Available on the web today
The problem
“Getting a few quotes” is quietly rigged — and undocumented.
You email three contractors. The second one calls to ask what the first quoted. The third lowballs because they heard you're in a hurry. Nothing is written down, nothing is comparable, and if a deal goes sideways later there's no record of what was actually agreed. Whoever answers last, or talks loudest, wins — not the best offer.
A tender fixes the mechanics: every bid is sealed until the deadline, so no one can undercut what they weren't supposed to see; everything opens at the same instant, so the comparison is honest; and the one you pick is signed by both sides into a record anyone can verify. Fairness isn't a promise here — it's how the process is built.
How it works
Four steps. No back-channel.
1
Post your spec
List what you need as clear line items — budget, quantity, deadline, whatever matters — and set a bidding deadline. Choose who can bid: anyone with your link, invite-only, or approve each vendor yourself.
2
Vendors place sealed bids
They open your link, fill in their offer against your spec, and sign it with a passkey. That signature makes the bid binding — and sealed: no one, not even you, sees a single bid before the deadline.
3
Everything opens at once
At the deadline all bids reveal together, side by side — values, timelines, who they are. No one had a peek, no one got a second, better-informed shot.
4
You award the winner
Pick the bid you want. It seals instantly into a signed agreement — the vendor already signed their bid, you sign the award — with a verifiable record both sides can point to forever.
Why it's different
The whole point is that no one can cheat the process.
Sealed until the deadline
Bids are hidden from everyone — including you, the buyer — until the moment bidding closes. No vendor can undercut a number they never saw; no one can be tipped off.
Every bid is signed and binding
A bid isn't a casual email you can wriggle out of — it's cryptographically signed with the vendor's passkey. What they bid is what they're committed to.
The winning bid IS the agreement
No re-typing terms, no “let me send over a contract.” You award the sealed bid; both signatures are already on it; it's done.
Publicly verifiable, permanently
Every closed tender produces a record with a shareable verification link — anyone can confirm the terms, the parties, and that the process was fair, without an account.
Losers stay private
Vendors who don't win are never exposed to each other, and their identities never appear in the public record. Competitors don't learn who else bid or what they offered.
Who it's for
Anyone who wants the best offer, not the loudest.
Home & trades
Three sealed quotes for a kitchen, a roof, a move — compared honestly, signed, on the record.
Small business buying
An RFQ to five suppliers, opened at one moment, awarded with a paper trail your accountant will love.
Agencies & teams
Pick a vendor — design, dev, catering, print — with a clean, defensible selection you can show a client or a board.
Events & one-offs
Collect bids for a venue, a fleet, a build — set a deadline, let it run, award the winner.
Businesses and individuals both
You decide whether a tender is open to registered businesses, private individuals, or either.
Control who bids
Open, invited, or vetted — your call.
Share a public link and let anyone bid; invite specific vendors only; or approve each one before they can place a bid (they submit their details — company name, contact, registration where relevant — and you vet them first). Add a PIN if you want the link to stay private. Restrict it to businesses, individuals, or both.
Proof
Every award seals into a record you can verify.
An awarded tender ends the way every Negolio deal ends: terms canonically serialized, hashed, passkey-signed by both sides, with a public verify page anyone can check — no account needed. Here's a real sealed agreement from our own demo, on exactly the rail an awarded tender uses. Inspect it yourself.
Verify a real sealed record → sha256 · 1442…9391
Pricing
You pay to run it. Vendors pay 1 credit to bid. That's the honesty.
A tender is the one place both sides pay a little, on purpose — you pay to run a fair, signed process, and each vendor pays 1 credit to place a serious, signed bid. That fee is exactly what keeps out the tyre-kickers. If a tender doesn't get enough bids to open, or a vendor withdraws before the deadline, those credits come straight back.
Want to negotiate each vendor instead of one sealed round? See Procurement →
Run your next decision as a fair, signed tender.
Post the spec, set the deadline, send one link. The process does the rest — sealed, opened together, awarded on the record.