Directory
JH

John Hart

Verified: Jun 2026 (SMTP Validated)🚀 High-Velocity
Cambridge, MA
𝕏in
Check Size Range

Flexible Check Size

Preferred Stages
Pre-seed & Seed

Background & Investment Thesis

MIT professor of Mechanical Engineering. Co-founder of Desktop Metal. Angel investor in additive manufacturing.

Focus Industries

manufacturinghardwaredeeptech
AI Outreach Insight94% Match Score

Active investor in manufacturing, hardware, deeptech. Highly responsive to concise pitches with clear traction metrics.

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Key Deal Terms & Quick Facts

Audited venture due diligence summary for John Hart

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
manufacturinghardwaredeeptech

Frequently Asked Questions about John Hart

What is John Hart's typical angel check size?▼

John Hart'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 John Hart invest in?▼

John Hart primarily backs early-stage startups across Pre-seed, Seed stages, focusing on manufacturing, hardware, deeptech.

What companies are in John Hart's angel portfolio?▼

John Hart actively participates in early-stage technology investments and venture syndicates.

How can startup founders contact or pitch John Hart?▼

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