Directory
ES

Eric Stein

Verified: Jun 2026 (SMTP Validated)👑 Lead Investor
Ventura, CA
in
Check Size Range

Flexible Check Size

Preferred Stages
seedseries-a

Background & Investment Thesis

Co-founder of The Trade Desk. Angel investor in adtech and data infrastructure.

Focus Industries

adtechdatasaasmarketplace

Notable Portfolio & Backed Deals

AI Outreach Insight94% Match Score

Active investor in adtech, data, saas, marketplace. Highly responsive to concise pitches with clear traction metrics.

Unlock Verified Direct Email & Founder Pitch Tools

Get instant access to Eric Stein's verified mailbox, personalized AI pitch drafts, and 7,400+ active angel profiles.

Key Deal Terms & Quick Facts

Audited venture due diligence summary for Eric Stein

Verified Deal Signals
Typical Check Size

$100k – $2M

Direct angel check per syndicate / round
Target Stages
seedseries-a
Early-stage entry valuation priority
Founder Pitch Contact

Verified (Protected — Unlock)

Direct mailbox protected against spam
Focus Industries & Categories
adtechdatasaasmarketplace
Notable Backed Deals & StartupsInternal company dossiers
The Trade Desk

Frequently Asked Questions about Eric Stein

What is Eric Stein's typical angel check size?▼

Eric Stein's investment check size typically ranges around $100k – $2M, participating in early-stage financing rounds alongside leading venture capital funds and angel syndicates.

What stages and sectors does Eric Stein invest in?▼

Eric Stein primarily backs early-stage startups across seed, series-a stages, focusing on adtech, data, saas, marketplace.

What companies are in Eric Stein's angel portfolio?▼

Eric Stein has backed notable companies including The Trade Desk.

How can startup founders contact or pitch Eric Stein?▼

Founders can access verified direct email contact channels, AI-assisted pitch drafting, and syndicate warm intro paths for Eric Stein through OpenAngels.