Founder Directory
Built by Keitoto
Founders7
Known for these resultsRole57%Role is parsed from founder titles in yc.db. Known for 57% 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-company43%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 43% of these rows have at least one match.School29%School is matched from bios, case-sensitive for acronyms. 29% of these rows have at least one match.
- Lewis BlackwoodFounder/CTO · RexS26B2B · San Francisco
- Merlin Kafka@merlinkafkaFounder/CEO · RexS26B2B · San Francisco
- Eshani MehtaFounder/CEO · LumariX25B2B · San Francisco
- Sam LambaFounder/CTO · LumariX25B2B · San Francisco
- Ahmad RoumieFounder · rex.fitW23Consumer · San Francisco
- Emmanuel Rex Rodriguez@rex_rodrFounder · Express BuildingS22Real Estate and Construction · Singapore
- Adam Montgomery@montasaurus_rexFounder · NectoW18Consumer · New York
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Lewis BlackwoodRexFounder/CTOSummer 2026B2BSan Francisco, United States2—Merlin KafkaRexFounder/CEOSummer 2026B2BSan Francisco, United States2https://x.com/merlinkafkaEshani MehtaLumariFounder/CEOSpring 2025B2BSan Francisco, United States5—Sam LambaLumariFounder/CTOSpring 2025B2BSan Francisco, United States5—Ahmad Roumierex.fitFounderWinter 2023ConsumerSan Francisco, United States2—Emmanuel Rex RodriguezExpress BuildingFounderSummer 2022Real Estate and ConstructionSingapore, Singapore14https://x.com/rex_rodrAdam MontgomeryNectoFounderWinter 2018ConsumerNew York, United States4https://x.com/montasaurus_rex
Showing 1–7 of 7 founders
Joseph Tan
Founder·Express Building
PRIMARY INFO
RoleFounder· not in title
Team size14
BatchSummer 2022
LocationSingapore, Singapore
Company statusActive
StageEarly
BIO
Former real estate executive who has invested & developed $3B+ in commercial and residential real estate in North America. Scaled a Canadian self storage platform to a $310MM exit.
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
First YC company on record
COMPANY CONTEXT
Express BuildingFinancing Southeast Asia's ~$1 trillion housing backlog
IndustryReal Estate and Construction
Websiteexpressbuilding.ph
Team size14
X—
LocationSingapore, Singapore
BatchSummer 2022
Co-foundersEmmanuel Rex Rodriguez@rex_rodr
