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Robert Nelsen

Verified: Jun 2026 (Profile Confirmed)🚀 High-Velocity
Seattle, WA
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Check Size Range

Flexible Check Size

Preferred Stages
Pre-seed & Seed

Background & Investment Thesis

Co-founder and Managing Director at ARCH Venture Partners. Legendary biotech investor backing transformational science.

Focus Industries

biotechdeeptechpharma
AI Outreach Insight94% Match Score

Active investor in biotech, deeptech, pharma. Highly responsive to concise pitches with clear traction metrics.

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Verified Deal Signals Active

Key Deal Terms & Quick Facts

Audited venture due diligence summary for Robert Nelsen

Verified Deal Signals
Typical Check Size

Undisclosed ($25k – $250k typical for early angels)

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

Verified (Protected — Unlock)

Direct mailbox protected against spam
Focus Industries & Categories
biotechdeeptechpharma

Frequently Asked Questions about Robert Nelsen

What is Robert Nelsen's typical angel check size?▼

Robert Nelsen's investment check size typically ranges around Undisclosed ($25k – $250k typical for early angels), participating in early-stage financing rounds alongside leading venture capital funds and angel syndicates.

What stages and sectors does Robert Nelsen invest in?▼

Robert Nelsen primarily backs early-stage startups across Pre-seed, Seed stages, focusing on biotech, deeptech, pharma.

What companies are in Robert Nelsen's angel portfolio?▼

Robert Nelsen actively participates in early-stage technology investments and venture syndicates.

How can startup founders contact or pitch Robert Nelsen?▼

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