Founder Directory
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Founders46
Known for these resultsRole46%Role is parsed from founder titles in yc.db. Known for 46% of these rows — the rest have no title at all, mostly 2019–2023. Those rows stay in the result and are counted as Unknown, never as No.Bio67%Bio coverage: 67% of these founders have a bio on their YC profile. Every bio-derived facet (ex-company, school, credentials, discipline) is Unknown for the rest.Ex-company9%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 9% of these rows have at least one match.School37%School is matched from bios, case-sensitive for acronyms. 37% of these rows have at least one match.
- Justin TangFounder/CTO · Lantern AIF26B2B · San Francisco
- Thomas ChanFounder/CEO · Lantern AIF26B2B · San Francisco
- Alex YeeFounder/CTO · GrocaloS26Consumer · Los Angeles
- David HwangFounder/CEO · GrocaloS26Consumer · Los Angeles
- Sherwood Callaway@shcallawayFounder/CEO · SazabiX26B2B · San Francisco
- Adish Jain@_adishjFounder/CEO · MosaicW25Consumer · San Francisco
- Kyle Wade@superfx64Founder/CTO · MosaicW25Consumer · San Francisco
- Sandra LifshitsFounder/CEO · RetrofitW25Consumer · New York
- Filip Kozera@kozerafilipFounder/CEO · WordwareS24Consumer · San Francisco
- Robert Chandler@bertie_aiFounder/CTO · WordwareS24Consumer · San Francisco
- Daniel WolfFounder · Carousel TechnologiesW24B2B · New York
- Jude RizzoFounder · Carousel TechnologiesW24B2B · New York
- Kunal Puri@thekunalpuriFounder · SmobiS23B2B · New York
- Clemens Rawert@rawertFounder · LangfuseW23B2B · Berlin
- Deepit Patil@deepit_patilFounder · CrazeS22Consumer · Mumbai
- Kabir Nagral@kabirnagralFounder · CrazeS22Consumer · Mumbai
- Avhijeet KapoorFounder · Brown FoodsW22Healthcare · Boston
- Bhavna TandonFounder · Brown FoodsW22Healthcare · Boston
- Sohail GuptaFounder · Brown FoodsW22Healthcare · Boston
- Saif Khawaja@khawajasnFounder · Shinkei SystemsW22Industrials · Los Angeles
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Justin TangLantern AIFounder/CTOFall 2026B2BSan Francisco, United States4—Thomas ChanLantern AIFounder/CEOFall 2026B2BSan Francisco, United States4—Alex YeeGrocaloFounder/CTOSummer 2026ConsumerLos Angeles, United States0—David HwangGrocaloFounder/CEOSummer 2026ConsumerLos Angeles, United States0—Sherwood CallawaySazabi2× YCFounder/CEOSpring 2026B2BSan Francisco, United States10https://x.com/shcallawayAdish JainMosaicFounder/CEOWinter 2025ConsumerSan Francisco, United States5https://x.com/_adishjKyle WadeMosaicFounder/CTOWinter 2025ConsumerSan Francisco, United States5https://x.com/superfx64Sandra LifshitsRetrofitFounder/CEOWinter 2025ConsumerNew York, United States2—Filip KozeraWordwareFounder/CEOSummer 2024ConsumerSan Francisco, United States15https://x.com/kozerafilipRobert ChandlerWordwareFounder/CTOSummer 2024ConsumerSan Francisco, United States15https://x.com/bertie_aiDaniel WolfCarousel TechnologiesFounderWinter 2024B2BNew York, United States4—Jude RizzoCarousel TechnologiesFounderWinter 2024B2BNew York, United States4—Kunal PuriSmobiFounderSummer 2023B2BNew York, United States4https://x.com/thekunalpuriClemens RawertLangfuseFounderWinter 2023B2BBerlin, Germany19https://x.com/rawertDeepit PatilCrazeFounderSummer 2022ConsumerMumbai, India8https://x.com/deepit_patilKabir NagralCrazeFounderSummer 2022ConsumerMumbai, India8https://x.com/kabirnagralAvhijeet KapoorBrown FoodsFounderWinter 2022HealthcareBoston, United States5—Bhavna TandonBrown FoodsFounderWinter 2022HealthcareBoston, United States5—Sohail GuptaBrown FoodsFounderWinter 2022HealthcareBoston, United States5—Saif KhawajaShinkei SystemsFounderWinter 2022IndustrialsLos Angeles, United States80https://x.com/khawajasn
Showing 1–20 of 46 founders
Sherwood Callaway
Founder/CEO·Sazabi
PRIMARY INFO
RoleFounder/CEO
Team size10
BatchSpring 2026
LocationSan Francisco, United States
Company statusActive
StageEarly
BIO
Sherwood Callaway is a 2x YC founder and software engineer with over ten years of experience in infrastructure, DevOps, and observability engineering roles top VC-backed startups, including Crunchbase and Brex. Currently, he is founder and CEO at Sazabi, the AI-native observability platform for fast-moving engineering teams. Sazabi is directly inspired by Sherwood's experience at Brex, where helped start the company's infrastructure and observability engineering teams.
Ex-company, school and discipline below are derived from this bio. Nothing is inferred when the bio is missing.
BACKGROUND
Credentialsnone mentioned
DisciplineEngineerKeyword match from the bio text, not a classifier.
TRACK RECORD
2× YC founder
- S21OpkitInactive
- X26SazabiActive · this entry
COMPANY CONTEXT
SazabiThe AI-native observability platform for fast-moving engineering teams
Also founded · 1 more YC company
OpkitInactiveSummer 2021AI phone calls for the US healthcare industry
HealthcareNew York, United States—Open this entry
