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Superangel | RoundOS

01 · Free data roomBuild, share and track important documents.

Data room analytics Document Analytics Pitch Deck Tracking Secure sharing Permissions NDA & agreements Watermarking Versions Branding

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Startups Venture capital M&A data room Investor relations

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Sales deals Board documents Due diligence Real estate

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Blog Funding Customer stories Investor room template

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S

Superangel

Activity from announced rounds

Activity in this selection View all activity

Activity in this selectionApr 30, 2026 · Apr 1, 2026

Rounds participated in: 1
Confirmed lead rounds: —
New companies: 1
Funding in participating rounds: $3.2M

By stage

Pre-seed1

By primary sector

Climate tech1

By country

Netherlands1

Rounds

1 in this selection

Apr 30

Spiral Hydrogen

Develops bubble-free electrolyser for green hydrogen production

€2.7MPre-Seed

Role not disclosed

1–1 of 1

Most frequent co-investors

byFounders1 shared Norrsken Evolve1 shared

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RoundOS

A free data room for modern deals, with an AI operator that runs the fundraise.

Create a free room

01 · Explore

Data Room AI Fundraising CRM Pricing Security Document Analytics Pitch Deck Tracking

02 · Data Room

Data room analytics Secure document sharing Data room permissions NDA & agreements Dynamic watermarking Document versions Custom branding

03 · Operator

Fundraising hub Pre-seed fundraising Seed fundraising Series A fundraising Fundraising follow-up Investor research Investor updates Integrations

04 · Use cases

Startup data room VC and LP data room M&A data room

Due diligence data room

Investor relations

Sales data room

Board documents

Real estate data room

05 · Free tools

All free tools SAFE calculator Dilution calculator Runway calculator Pipeline coverage Investor fit checker Follow-up generator Round leak audit

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