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Firm & fund profile / Sourced portfolio

Union Square Ventures

Tracked participation in 5 Atlas companies, with 2 explicitly attributed leads.

Firm website ↗

5portfolio companies

12round participations

2lead positions

$40Mled round total

Conviction

Most recent leads

The latest rounds this investor is sourced as leading, newest first.

Mar 2025ViamSeries C$30M Apr 2015ClarifaiSeries A$10M

Capital activity

Portfolio

CompanyLatest valuationFirst → latestRoundsRoleAttributed partner

GAGeneralist AI$2BJun 2026 → Jun 20261 roundParticipant—

SSuno$5.4BJun 2026 → Jun 20261 roundParticipant—

VViam—Jun 2021 → Mar 20254 rounds1 led—

AAbridge—Jan 2018 → Feb 20243 roundsParticipant—

CClarifaiInferenceClarifai is an enterprise AI infrastructure platform focused on deploying and running foundation models and custom…$101.3MraisedRecent roundsReverse acqui-hire / IP licensing integration (reported in investor materials; not presented as a disclosed cash valuation round by Clarifai) · May 2026Nebius (integration/licensing counterparty)Series C · Oct 2021$60M · led by NEASeries B · Oct 2016$30M · led by Menlo VenturesClarifai—Apr 2015 → Oct 20213 rounds1 led—

DateCompanyRoundRaisedValuationRoleEvidence

Jun 04, 2026GAGeneralist AISeries B$400M$2BParticipant

Jun 03, 2026SSunoSeries D$400M$5.4BParticipant

Mar 03, 2025VViamSeries C$30M—Lead

Mar 26, 2024VViamSeries B$45M—Participant

Feb 23, 2024AAbridgeSeries C$150M—Participant

Aug 11, 2022AAbridgeSeries A-1$12.5M—Participant

Feb 01, 2022VViamSeries A$30M—Participant

Oct 15, 2021CClarifaiInferenceClarifai is an enterprise AI infrastructure platform focused on deploying and running foundation models and custom…$101.3MraisedRecent roundsReverse acqui-hire / IP licensing integration (reported in investor materials; not presented as a disclosed cash valuation round by Clarifai) · May 2026Nebius (integration/licensing counterparty)Series C · Oct 2021$60M · led by NEASeries B · Oct 2016$30M · led by Menlo VenturesClarifaiSeries C$60M—Participant

Jun 29, 2021VViamSeed$12M—Participant

Jan 31, 2018AAbridgeSeed——Participant

Oct 25, 2016CClarifaiInferenceClarifai is an enterprise AI infrastructure platform focused on deploying and running foundation models and custom…$101.3MraisedRecent roundsReverse acqui-hire / IP licensing integration (reported in investor materials; not presented as a disclosed cash valuation round by Clarifai) · May 2026Nebius (integration/licensing counterparty)Series C · Oct 2021$60M · led by NEASeries B · Oct 2016$30M · led by Menlo VenturesClarifaiSeries B$30M—Participant

Apr 28, 2015CClarifaiInferenceClarifai is an enterprise AI infrastructure platform focused on deploying and running foundation models and custom…$101.3MraisedRecent roundsReverse acqui-hire / IP licensing integration (reported in investor materials; not presented as a disclosed cash valuation round by Clarifai) · May 2026Nebius (integration/licensing counterparty)Series C · Oct 2021$60M · led by NEASeries B · Oct 2016$30M · led by Menlo VenturesClarifaiSeries A$10M—Lead

DateCompanyRoundRaisedValuationRoleEvidence

Jun 04, 2026GAGeneralist AISeries B$400M$2BParticipant

Jun 03, 2026SSunoSeries D$400M$5.4BParticipant

Feb 23, 2024AAbridgeSeries C$150M—Participant

Oct 15, 2021CClarifaiInferenceClarifai is an enterprise AI infrastructure platform focused on deploying and running foundation models and custom…$101.3MraisedRecent roundsReverse acqui-hire / IP licensing integration (reported in investor materials; not presented as a disclosed cash valuation round by Clarifai) · May 2026Nebius (integration/licensing counterparty)Series C · Oct 2021$60M · led by NEASeries B · Oct 2016$30M · led by Menlo VenturesClarifaiSeries C$60M—Participant

Mar 26, 2024VViamSeries B$45M—Participant

Mar 03, 2025VViamSeries C$30M—Lead

Feb 01, 2022VViamSeries A$30M—Participant

Oct 25, 2016CClarifaiInferenceClarifai is an enterprise AI infrastructure platform focused on deploying and running foundation models and custom…$101.3MraisedRecent roundsReverse acqui-hire / IP licensing integration (reported in investor materials; not presented as a disclosed cash valuation round by Clarifai) · May 2026Nebius (integration/licensing counterparty)Series C · Oct 2021$60M · led by NEASeries B · Oct 2016$30M · led by Menlo VenturesClarifaiSeries B$30M—Participant

Aug 11, 2022AAbridgeSeries A-1$12.5M—Participant

Jun 29, 2021VViamSeed$12M—Participant

Apr 28, 2015CClarifaiInferenceClarifai is an enterprise AI infrastructure platform focused on deploying and running foundation models and custom…$101.3MraisedRecent roundsReverse acqui-hire / IP licensing integration (reported in investor materials; not presented as a disclosed cash valuation round by Clarifai) · May 2026Nebius (integration/licensing counterparty)Series C · Oct 2021$60M · led by NEASeries B · Oct 2016$30M · led by Menlo VenturesClarifaiSeries A$10M—Lead

Jan 31, 2018AAbridgeSeed——Participant