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Seraphim | 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

View all Data Room features →

02 · AI Fundraising CRMRun the work between investor meetings.

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Deal rooms

Startups Venture capital M&A data room Investor relations

Beyond fundraising

Sales deals Board documents Due diligence Real estate

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Blog Funding Customer stories Investor room template

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SAFE, dilution, runway, pipeline coverage, investor fit.

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S

Seraphim

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: $30.2M

By stage

Series A1

By primary sector

Space tech1

By country

Germany1

Rounds

1 in this selection

Apr 22

ATMOS Space Cargo

Develops orbital transport and re-entry vehicles

€25.7MSeries A

Role not disclosed

1–1 of 1

Most frequent co-investors

APEX Ventures1 shared Balnord1 shared E2MC1 shared European Innovation Council (EIC)1 shared Expansion1 shared Faber1 shared High-Tech Gründerfonds (HTGF)1 shared Keen Defence and Security1 shared Kirch Ventures1 shared Lennertz & Co1 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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