Founder Directory
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Founders15
Known for these resultsRole60%Role is parsed from founder titles in yc.db. Known for 60% 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.Bio100%Bio coverage: 100% 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-company47%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 47% of these rows have at least one match.School100%School is matched from bios, case-sensitive for acronyms. 100% of these rows have at least one match.
- Aaron ZhangFounder/CEO · PeerS26B2B · San Francisco
- Felix PengFounder/CTO · PeerS26B2B · San Francisco
- Erik MeikeFounder/CTO · MadroneX26Industrials · San Francisco
- Kazuma ChojiFounder/CTO · SaffronX26B2B · San Francisco
- Georgia Witchel@GWitchelFounder/CEO · MantisW26B2B · New York
- Lucas EwingFounder/CEO · LilacS25B2B · San Francisco
- Max FriefeldFounder · UltraS24Industrials · New York
- Oliver OrtliebFounder/CTO · UltraS24Industrials · New York
- Aman Raghuvanshi@araghuvanshi2Founder · MulliganW23B2B · San Francisco
- Emily DorseyFounder · MulliganW23B2B · San Francisco
- Mark CyffkaFounder · AirMyneW22Industrials · San Francisco
- Max FriefeldFounder/CEO · Voodoo ManufacturingW17Industrials · New York
- Oliver OrtliebFounder · Voodoo ManufacturingW17Industrials · New York
- Max FriefeldFounder · Layer By LayerS13Consumer · San Francisco
- Oliver OrtliebFounder/CTO · Layer By LayerS13Consumer · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Aaron ZhangPeerFounder/CEOSummer 2026B2BSan Francisco, United States2—Felix PengPeerFounder/CTOSummer 2026B2BSan Francisco, United States2—Erik MeikeMadroneFounder/CTOSpring 2026IndustrialsSan Francisco, United States2—Kazuma ChojiSaffronFounder/CTOSpring 2026B2BSan Francisco, United States3—Georgia WitchelMantisFounder/CEOWinter 2026B2BNew York, United States3https://x.com/GWitchelLucas EwingLilacFounder/CEOSummer 2025B2BSan Francisco, United States4—Max FriefeldUltra3× YCFounderSummer 2024IndustrialsNew York, United States4—Oliver OrtliebUltra3× YCFounder/CTOSummer 2024IndustrialsNew York, United States4—Aman RaghuvanshiMulliganFounderWinter 2023B2BSan Francisco, United States5https://x.com/araghuvanshi2Emily DorseyMulliganFounderWinter 2023B2BSan Francisco, United States5—Mark CyffkaAirMyneFounderWinter 2022IndustrialsSan Francisco, United States11—Max FriefeldVoodoo Manufacturing3× YCFounder/CEOWinter 2017IndustrialsNew York, United States19—Oliver OrtliebVoodoo Manufacturing3× YCFounderWinter 2017IndustrialsNew York, United States19—Max FriefeldLayer By Layer3× YCFounderSummer 2013ConsumerSan Francisco, United States2—Oliver OrtliebLayer By Layer3× YCFounder/CTOSummer 2013ConsumerSan Francisco, United States2—
Showing 1–15 of 15 founders
Oliver Ortlieb
Founder·Voodoo Manufacturing
PRIMARY INFO
RoleFounder· not in title
Team size19
BatchWinter 2017
LocationNew York, United States
Company statusInactive
StageEarly
BIO
Oliver is the co-founder and CTO of Ultra. Before co-founding Ultra, Oliver Ortlieb was the Co-founder & CTO at Voodoo Manufacturing where he built the software and systems to support one of the largest 3D printing factories in the world. Prior to that, he co-founded Layer By Layer, a secure marketplace for 3D-printable products. He holds multiple patents in the field of 3D printing, and received his BS in Computer Science from Harvey Mudd College.
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
3× YC founderVerified prior exit
- S13Layer By LayerAcquired
- W17Voodoo ManufacturingInactive · this entry
- S24UltraActive
COMPANY CONTEXT
Voodoo ManufacturingAWS for manufacturing.
Also founded · 2 more YC companies
UltraActiveSummer 2024Practical, general-purpose robots for repetitive industrial tasks
IndustrialsNew York, United States4Open this entry
LLayer By LayerAcquiredSummer 2013
Acquired by MakerBot in February 2014. A marketplace for 3D…
ConsumerSan Francisco, United States2Open this entry
