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RoundOS

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

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01 · Explore

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02 · Data Room

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Paul Graham | 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

Rounds Companies Investors Digests Research

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Funding/Investors/Paul Graham

PG

Paul Graham

Activity from announced rounds

View all activity

All recorded activity

Rounds participated in: 2
Confirmed lead rounds: —
New companies: 2
Funding in participating rounds: $40M

By stage

Seed2

By primary sector

AI1

Climate tech1

By country

United States2

Rounds

2 in all activity

Aug 20

MIT spinoff building factory-built compact pressurized water reactors

$31MSeed

Role not disclosed

Aug 10

Discovered Materials

Builds AI agents that discover and accelerate new materials for semiconductor chips

$9MSeed

Role not disclosed

1–2 of 2

Most frequent co-investors

Y Combinator (YC)2 shared Alumni Ventures1 shared Duke Capital Partners1 shared Evan Meagher1 shared FCVC1 shared Gokul Rajaram1 shared Lightspeed India Partners1 shared Matteo Franceschetti1 shared Nucleation Capital1 shared Peak XV Partners1 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

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

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

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Due diligence data room

Investor relations

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Board documents

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05 · Free tools

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

06 · Resources

All alternatives DocSend alternative Digify alternative Google Drive alternative Dropbox alternative Best DocSend alternatives Best free data rooms Investor room template Blog Customer stories Funding News Open a live room

© 2026 RoundOS · Data Room free forever · Operator from $99/month