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For founders raising seed to Series B

Know which investors are serious.

Send one room instead of a deck attachment. See who read the story, watched the team and opened the model.

Build your roomSee all features
The editor: the room's pages and blocks, and the room as investors see it.

Pages

OverviewTeamProductTractionDiligence

Blocks

HeroMetricsFounder videoNarrativeGate
HalcyonOverviewTeamProductTractionAsk
Series A · 2026

Warehouse robots that learn on shift.

Halcyon's pickers train on the floor they work, so a new site is live in days, not quarters.

14

Sites live

1.2M

Picks a day

148%

Net revenue retention

Why we started Halcyon · Maya, 0:28

Fundraising

One link per fund.

Paste a list of investors and get a link for each, so every visit is a name.

Links: one per fund, each with its own gates and starting tier.
RoomsHSeries ALivePublished Mon3 here now

Links6

How people get in. Access belongs to each viewer, so a forwarded link carries none of its own.

LinkGatesStarts atVisitsViewersStatusLast used
Northgate VenturesPriya RamanOTPNDADiligence143LiveNow
Foundry PeakDaniel KoOTPNDADiligence112Live3h ago
Lattice PartnersHannah WeissOTPDeck71LiveYesterday
Meridian CapitalTomás AlvarezOTPDeck52Live2d ago
Angels, OctoberOTPPasswordTeaser96LiveMon
Demo day follow-upsOTPTeaser2311Expired Oct 15Sep 30

Fundraising

Teaser, Deck, Diligence.

Show the story first. Open the model only when a fund earns it.

The secure viewer: a page of the deck with the reader's email across it.
Unit economics.pdfPage 2 of 14Downloads off

Unit economics

Payback in 11 months, at pilot pricing

Contract value

$184k

Gross margin

61%

Payback

11 mo

Fundraising

Follow up with the right people.

A timeline per investor tells you who came back three days later.

One investor's path through the room, in the order it happened.

Priya Raman

Partner · Northgate Ventures

Here now
  1. Tue 09:12Verified [email protected]Email code · Northgate link
  2. Tue 09:13Read Overview3m 40s · scrolled to the end
  3. Tue 09:17Watched Maya's intro100% · 0:28
  4. Tue 09:18Watched Jonah's intro100% · 0:24
  5. Tue 09:21Read Traction6m 02s · paused on the cohort chart
  6. Wed 16:40Signed the NDADiligence opened
  7. Wed 16:44Opened Financial model.xlsx18m · 9 of 11 sheets
  8. Today 10:02Back in the roomReading Unit economics.pdf

Live in an afternoon.

  1. 1

    Paste your website

    Get a draft room in your brand in about a minute.

  2. 2

    Add your deck

    Upload it to Deck. Add the model and data to Diligence.

  3. 3

    Send a link per fund

    Each investor verifies their email to get in.

  4. 4

    Promote the serious ones

    Move a fund to Diligence in one click.

Questions, answered.

Something else? [email protected]

  • Will investors actually use it?

    It opens on a phone with no account. An email and a code is all it asks for, which is less than most deck links.

  • Can I see which page of the deck lost them?

    Yes. The deck heatmap shows time per page across all readers, and each investor's timeline shows where they stopped.

  • Is there a plan for a single raise?

    We're planning a one-off pass that covers a raise. Write to us if you want it.

Paste your website. See your room in a minute.

Build your room