Founder Directory
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Founders2
Known for these resultsRole100%Role is parsed from founder titles in yc.db. Known for 100% 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-company50%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 50% of these rows have at least one match.School0%School is matched from bios, case-sensitive for acronyms. 0% of these rows have at least one match.
- Ibrahim RabbaniFounder/CEO · Zibra LabsX26B2B · San Francisco
- Zac PoliczerFounder/CTO · Zibra LabsX26B2B · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Ibrahim RabbaniZibra LabsFounder/CEOSpring 2026B2BSan Francisco, United States2—Zac PoliczerZibra LabsFounder/CTOSpring 2026B2BSan Francisco, United States2—
Showing 1–2 of 2 founders
Zac Policzer
Founder/CTO·Zibra Labs
PRIMARY INFO
RoleFounder/CTO
Team size2
BatchSpring 2026
LocationSan Francisco, United States
Company statusActive
StageEarly
BIO
After a career making software that serves over a billion people, with a background primarily in large databases, I'm now building HPC clusters at Zibra Labs The past two years I've been focused on what the next generation of AI data center software looks like — and working to shape that future. I've been fortunate to do much of this in open source, which I'm deeply passionate about. Talk to me about databases, Mahjong, guitars, or weird horror movies. I'm currently building Zibra Labs.
Ex-company, school and discipline below are derived from this bio. Nothing is inferred when the bio is missing.
BACKGROUND
No notable employer or school mentioned in the bio.
Credentialsnone mentioned
DisciplineEngineerKeyword match from the bio text, not a classifier.
TRACK RECORD
First YC company on record
