# Hidden Door funding: rounds and investors

> Hidden Door has raised $7.0M across 1 round since 2022. Investors include Betaworks, Northzone and Ridge Ventures. Every round with its source.

Source: https://millionrounds.com/company/hidden-door (Millionrounds; every figure on the page links to its filing or article)

United States · [Seed startup](https://millionrounds.com/companies)

# Who invested in *Hidden Door*

One round we have observed, with the 6 investors named in it. Every figure came from a named source, and where the company reported a raise to the SEC itself, that is shown beside it.

AI

Funding summary Updated 26 Oct 2026

**$7.0M** raised across 1 round since 2022, from 1 source

- **Latest round:** Seed, $7.0M Jul 2022
- **Investors:** 6

See who backed them

## The rounds

- **Jul 2022** Seed **$7.0M** [Betaworks](https://millionrounds.com/fund/betaworks) [Northzone](https://millionrounds.com/fund/northzone) [Ridge Ventures](https://millionrounds.com/fund/ridge-ventures) [Homebrew](https://millionrounds.com/fund/homebrew) [Makers Fund](https://millionrounds.com/fund/makers-fund) [Brooklyn Bridge Ventures](https://millionrounds.com/fund/brooklyn-bridge-ventures) Source recorded

## Founders and team

From Hidden Door's own website: 3 founders.

**Hilary Mason** Co-founder, CEO

**Joshua Schacter** founder, del.icio.us

**Matt Brandwein** Co-founder, Product

## Everyone who backed them

[Betaworks](https://millionrounds.com/fund/betaworks) VC firm **1** round

[Northzone](https://millionrounds.com/fund/northzone) VC firm **1** round

[Ridge Ventures](https://millionrounds.com/fund/ridge-ventures) VC firm **1** round

[Homebrew](https://millionrounds.com/fund/homebrew) VC firm **1** round

[Makers Fund](https://millionrounds.com/fund/makers-fund) VC firm **1** round

[Brooklyn Bridge Ventures](https://millionrounds.com/fund/brooklyn-bridge-ventures) VC firm **1** round

Missing a round, or an investor who was in one? [Tell us](https://millionrounds.com/corrections?slug=hidden-door).

## Quick answers about Hidden Door

### Who invested in Hidden Door?

Hidden Door's investors include Betaworks, Northzone, Ridge Ventures, Homebrew and Makers Fund, and 1 more on record.

### How much has Hidden Door raised?

Hidden Door has raised $7.0M across 1 round since 2022.

### When did Hidden Door last raise?

Hidden Door's most recent round was a Seed of $7.0M in Jul 2022.

### What was Hidden Door's biggest round?

Its most recent round, $7.0M in Jul 2022, is also its largest on record.

### Who backed Hidden Door first?

Hidden Door's first round on record, in Jul 2022, was backed by Betaworks, Northzone and Ridge Ventures and 3 others.

### What stage is Hidden Door at?

Hidden Door's latest named round is a Seed, in Jul 2022.

### Where is Hidden Door based?

Hidden Door is based in the United States.

## Companies like Hidden Door

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