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GR

Angel & individual profile / Sourced portfolio

Guillermo Rauch

Tracked participation in 11 Atlas companies, with 0 explicitly attributed leads.

11portfolio companies

12round participations

0lead positions

Oct 2025latest activity

Capital activity

Portfolio

CompanyLatest valuationFirst → latestRoundsRoleAttributed partner

MMastra—Oct 2025 → Oct 20251 roundParticipant—

CComposio—Jul 2025 → Jul 20251 roundParticipant—

GGranola$250MMay 2025 → May 20251 roundParticipant—

BBraintrust—Dec 2023 → Oct 20242 roundsParticipantVercel

Ffal$80MSep 2024 → Sep 20241 roundParticipant—

BBrowserbase—Jun 2024 → Jun 20241 roundParticipant—

PPerplexity$520MJan 2024 → Jan 20241 roundParticipant—

EElevenLabs—Jun 2023 → Jun 20231 roundParticipant—

RReplicate—Feb 2023 → Feb 20231 roundParticipant—

RRunway$500MDec 2022 → Dec 20221 roundParticipant—

SAStack AI—— → —1 roundParticipant—

DateCompanyRoundRaisedValuationRoleEvidence

Oct 08, 2025MMastraSeed$13M—Participant

Jul 22, 2025CComposioSeries A$25M—Participant

May 14, 2025GGranolaSeries B$43M$250MParticipant

Oct 08, 2024BBraintrustSeries A$36M—Participant · Vercel

Sep 18, 2024FfalSeries A$14M$80MParticipant

Jun 06, 2024BBrowserbaseSeed$6.5M—Participant

Jan 04, 2024PPerplexitySeries B$73.6M$520MParticipant

Dec 13, 2023BBraintrustSeed$5.1M—Participant

Jun 20, 2023EElevenLabsSeries A$19M—Participant

Feb 21, 2023RReplicateSeries A$12.5M—Participant

Dec 05, 2022RRunwaySeries C$50M$500MParticipant

UndatedSAStack AISeries A$16M—Participant

DateCompanyRoundRaisedValuationRoleEvidence

Jan 04, 2024PPerplexitySeries B$73.6M$520MParticipant

Dec 05, 2022RRunwaySeries C$50M$500MParticipant

May 14, 2025GGranolaSeries B$43M$250MParticipant

Oct 08, 2024BBraintrustSeries A$36M—Participant · Vercel

Jul 22, 2025CComposioSeries A$25M—Participant

Jun 20, 2023EElevenLabsSeries A$19M—Participant

UndatedSAStack AISeries A$16M—Participant

Sep 18, 2024FfalSeries A$14M$80MParticipant

Oct 08, 2025MMastraSeed$13M—Participant

Feb 21, 2023RReplicateSeries A$12.5M—Participant

Jun 06, 2024BBrowserbaseSeed$6.5M—Participant

Dec 13, 2023BBraintrustSeed$5.1M—Participant