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Altos Ventures | 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.

Today & next moves Follow-up Investor research Investor CRM Investor updates Imports & sources

View all Operator features →

See it workingOpen a live roomWalk a real RoundOS room.

Pricing Security

Deal rooms

Startups Venture capital M&A data room Investor relations

Beyond fundraising

Sales deals Board documents Due diligence Real estate

Fundraising

Fundraising hub Pre-seed Seed Series A

Learn

Blog Funding Customer stories Investor room template

Compare

All alternatives Best free data rooms Best DocSend alternatives Digify alternative iDeals alternative

Free tools & templates

Calculators and fundraising tools. No signup.

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

Sign inExploreData Room AI Fundraising CRM Pricing Security Document Analytics Pitch Deck TrackingData Room featuresData room analytics Secure sharing Permissions NDA & agreements Watermarking Versions BrandingUse casesFundraising hub Startups Venture capital M&A data room Investor relations Sales deals Board documents Due diligence Real estate Pre-seed Seed Series AOperatorToday & next moves Follow-up Investor research Investor CRM Investor updates Imports & sourcesMoreCustomer stories All alternatives Best free data rooms Investor room template Free tools Blog Funding Integrations

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AV

Altos Ventures

Activity from announced rounds

View all activity

All recorded activity

Rounds participated in: 3
Confirmed lead rounds: —
New companies: 3
Funding in participating rounds: $64M

By stage

Seed1

Series A1

Series B1

By primary sector

AI1

Cybersecurity1

Space tech1

By country

United States2

South Korea1

Rounds

3 in all activity

Jun 1

Develops launch vehicles and engines for small satellite launch services

$24MSeries B

Role not disclosed

Apr 29

General Analysis

Builds security infrastructure for agentic AI

$10MSeed

Role not disclosed

Apr 9

Provides datasets and reinforcement learning environments for AI labs

$30MSeries A

Role not disclosed

1–3 of 3

Most frequent co-investors

Y Combinator (YC)2 shared 645 Ventures1 shared BoxGroup1 shared Hana Ventures1 shared Korea Development Bank1 shared Menlo Ventures1 shared Strong Ventures1 shared The Raine Group1 shared

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

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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

Pitching Altos Ventures? Send the deck from a free RoundOS data room and see which pages they read.

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