# Sergey Brin founder roles entity: /record/sergey-brin.md predicate: founder_of page: /record/sergey-brin/founder_of as_of: 2026-11-08 cite: AsOf. "Sergey Brin founder of: Google", undated. Claim clm_9E09A75EB4D6, https://asof.is/claim/clm_9E09A75EB4D6, accessed 2026-11-08. Source: https://www.irozhlas.cz/veda-technologie/technologie/google-vyhledavac-dvacetiny-narozeniny-vyroci_1809041414_ako. As of November 8, 2026, the AsOf record says Sergey Brin is a founder of Google and Alphabet Inc., from 2 secondary sources (irozhlas.cz and biography.com). 2 claims on Sergey Brin's founder roles, 2 open and 0 superseded, each dated and sourced; a replaced value is closed with an end date, never deleted. ## Current founder roles What the record asserts on 2026-11-08. - [Sergey Brin](/record/sergey-brin.md) | founder_of | [Google](/record/google.md) | valid undated to present | conf 0.80 | valid | [clm_9E09A75EB4D6](/claim/clm_9E09A75EB4D6.md) sources: https://www.irozhlas.cz/veda-technologie/technologie/google-vyhledavac-dvacetiny-narozeniny-vyroci_1809041414_ako, https://www.wikidata.org/wiki/Q95, https://www.biography.com/business-leaders/larry-page - [Sergey Brin](/record/sergey-brin.md) | founder_of | [Alphabet Inc.](/record/alphabet.md) | valid undated to present | conf 0.95 | valid | [clm_CE5A52061F2C](/claim/clm_CE5A52061F2C.md) sources: https://www.wikidata.org/wiki/Q20800404, https://www.sec.gov/Archives/edgar/data/1652044/000165204426000018/goog-20251231.htm, https://finance.yahoo.com/news/alphabet-co-founder-returns-spearhead-200023066.html ## Every dated value One claim per line, oldest first. Superseded claims stay visible. - [Sergey Brin](/record/sergey-brin.md) | founder_of | [Google](/record/google.md) | valid undated to present | conf 0.80 | valid | [clm_9E09A75EB4D6](/claim/clm_9E09A75EB4D6.md) sources: https://www.irozhlas.cz/veda-technologie/technologie/google-vyhledavac-dvacetiny-narozeniny-vyroci_1809041414_ako, https://www.wikidata.org/wiki/Q95, https://www.biography.com/business-leaders/larry-page - [Sergey Brin](/record/sergey-brin.md) | founder_of | [Alphabet Inc.](/record/alphabet.md) | valid undated to present | conf 0.95 | valid | [clm_CE5A52061F2C](/claim/clm_CE5A52061F2C.md) sources: https://www.wikidata.org/wiki/Q20800404, https://www.sec.gov/Archives/edgar/data/1652044/000165204426000018/goog-20251231.htm, https://finance.yahoo.com/news/alphabet-co-founder-returns-spearhead-200023066.html ## Questions this record answers ### What is Sergey Brin founder of? Google and Alphabet Inc., as the record asserts on November 8, 2026, from 2 secondary sources (irozhlas.cz and biography.com). ## Read on - This page: /record/sergey-brin/founder_of (markdown: /record/sergey-brin/founder_of.md) - Entity twin: /record/sergey-brin.md ยท timeline: /timelines/sergey-brin.md --- AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.