Founder Directory
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Founders5
Known for these resultsRole80%Role is parsed from founder titles in yc.db. Known for 80% 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-company0%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 0% 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.
- Mahyad Ghassemi@MahyadGhassemiFounder/CEO · OkibiS25B2B · San Francisco
- Saurav Mitra@thesauravmitraFounder/CTO · OkibiS25B2B · San Francisco
- Ali Attar@aliatttarFounder/CPO · SigmaOSS21Consumer · San Francisco
- Mahyad Ghassemi@MahyadGhassemiFounder/CEO · SigmaOSS21Consumer · San Francisco
- Saurav Mitra@thesauravmitraFounder · SigmaOSS21Consumer · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Mahyad GhassemiOkibi2× YCFounder/CEOSummer 2025B2BSan Francisco, United States2https://x.com/MahyadGhassemiSaurav MitraOkibi2× YCFounder/CTOSummer 2025B2BSan Francisco, United States2https://x.com/thesauravmitraAli AttarSigmaOS2× YCFounder/CPOSummer 2021ConsumerSan Francisco, United States5https://x.com/aliatttarMahyad GhassemiSigmaOS2× YCFounder/CEOSummer 2021ConsumerSan Francisco, United States5https://x.com/MahyadGhassemiSaurav MitraSigmaOS2× YCFounderSummer 2021ConsumerSan Francisco, United States5https://x.com/thesauravmitra
Showing 1–5 of 5 founders
Saurav Mitra
Founder·SigmaOS
PRIMARY INFO
RoleFounder· not in title
Team size5
BatchSummer 2021
LocationSan Francisco, United States
Company statusActive
StageEarly
BIO
Building Okibi (S25) to create AI coworkers using natural language, like Lovable but specifically designed for agents. Previously built SigmaOS (S21), the agentic browser built for work. Used by 100,000+ people.
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
Disciplinenot detectedKeyword match from the bio text, not a classifier.
TRACK RECORD
2× YC founder
- S21SigmaOSActive · this entry
- S25OkibiActive
COMPANY CONTEXT
SigmaOS
The new home for your internet 🏡
Also founded · 1 more YC company
OkibiActiveSummer 2025Turns products into CLIs and agents into customers
B2BSan Francisco, United States2Open this entry
