Where does Seth Rosenberg work?

Seth Rosenberg is General Partner at Greylock Partners and Board director at Magical.

What check size does Seth Rosenberg write?

Seth Rosenberg typically writes checks of $500K – $200M.

What boards does Seth Rosenberg sit on?

Seth Rosenberg holds tracked board seats at Magical.

Where did Seth Rosenberg go to school?

Seth Rosenberg studied at Queen's University (Bachelor of Commerce, Commerce); ESSEC Business School (BBA, Finance).

Seth Rosenberg

InvestorFounder

General Partner at Greylock Partners · Board director at Magical

New York, New York

Writes $500K – $200M checks · typically $25M

About

Seth Rosenberg, raised around gritty Winnipeg family-business entrepreneurs, focuses on ambitious, non‑traditional founders in AI+fintech, favoring fintech-first companies (80% domain/20% AI) and a hands-on, few-per-year thought-partner approach from pre-idea.

Likely emails· guessed from name + firm domain, not firm-published

Invests in

AI & Machine LearningConsumerCybersecurityFintechSaaS

Board director at Magical

Intro paths

→

In turn, Seth can intro founders to Magical's investors below.

Magical's investors · 10

Bain Capital VenturesBoston · $1M – $100M checks Blank VenturesSan Francisco · $500K – $2M checks Coatue ManagementNew York · $1M – $20M checks Dylan Field Greylock PartnersSan Francisco · $100K – $200M checks · since 2021 GTMfundScottsdale · $500K – $1.5M checks Jack AltmanSan Francisco Lightspeed Venture PartnersMenlo Park · $1.7M – $87M checks · since 2023 Scott Belsky SV AngelSan Francisco

Co-founders at Magical

Harpaul SambhiCEO & Co-Founder

Rosie ChopraCOO & Co-Founder

Prashant VishwanathanEngineering Manager & Cofounder

KEITH PEIRISExecutive Officer, Director, Promoter

HENRI LIRIANIDirector

Prashant ViswanathanEngineering Manager & Co-Founder

Zach PiepmeyerCo-Founder & Head of Design (as of 2022)

Experience

GreylockGeneral Partnercurrent2017 — presentNew York, United States
Bretton AIBoard Membercurrent2023 — presentSan Francisco Bay Area
AsporaInvestorcurrent2024 — present
RampInvestorcurrent2023 — presentNew York, New York, United States
Espresso SystemsBoard Membercurrent2021 — present
LightfieldBoard Membercurrent2020 — present
PineBoard Membercurrent2022 — presentToronto, Ontario, Canada
RobloxBoard Observercurrent2018 — presentRedwood City, California, United States
PayJoyBoard Observercurrent2018 — present
WisetackBoard Observercurrent2018 — present
FacebookProduct Manager2013 — 2016san francisco bay area
Goldman SachsInvestment Banking, Tech, Media & Telecom (TMT)2012 — 2013New York City
Queen's University Investment CounselChief Strategy Officer (CSO)2011 — 2012
William Morris EndeavorAssistant to Talent Agent2010

Education

Queen's UniversityBachelor of Commerce, Commerce
ESSEC Business SchoolBBA, Finance

Skills & more

Public Speaking15Leadership15Team Leadership6Management11Equity Valuation4Financial Analysis11Financial Modeling19Direct Sales2Entrepreneurship43Investment Banking2Valuation6Investments9

+4 more

Business StrategyBusiness DevelopmentStart-upsAdvertising

From Seth's professional profile.

Investments

Board seats

Magical

Per SEC Form D filings.

Colleagues at Greylock Partners

Aneel Bhusri

Partner at Greylock Partners

Ani Narayan

Scout at Greylock Partners

Ankit Mathur

Scout at Greylock Partners

Asheem Chandna

Partner at Greylock; enterprise and cybersecurity investor since 2003

Bill Elfers

Founding Partner at Greylock Partners

Bob Henderson

Special Limited Partner at Greylock Partners

Bukky Adebayo

Scout at Greylock Partners

Charlie Waite

Founding Partner at Greylock Partners

Network1

Erica Dorfman

Scout at Greylock Partners

Investors connected to Seth in public investor directories — a warm-intro map.

Frequently asked questions

Who is Seth Rosenberg?: Seth Rosenberg, raised around gritty Winnipeg family-business entrepreneurs, focuses on ambitious, non‑traditional founders in AI+fintech, favoring fintech-first companies (80% domain/20% AI) and a hands-on, few-per-year thought-partner approach from pre-idea.
Where does Seth Rosenberg work?: Seth Rosenberg is General Partner at Greylock Partners and Board director at Magical.
What does Seth Rosenberg invest in?: Seth Rosenberg invests in AI & Machine Learning, Consumer, Cybersecurity, Fintech, SaaS.
What check size does Seth Rosenberg write?: Seth Rosenberg typically writes checks of $500K – $200M.
What boards does Seth Rosenberg sit on?: Seth Rosenberg holds tracked board seats at Magical.
Where did Seth Rosenberg go to school?: Seth Rosenberg studied at Queen's University (Bachelor of Commerce, Commerce); ESSEC Business School (BBA, Finance).