Ernesto Tagwerker

Active Investor

Founder & CTO at UpgradeJS.com | JavaScript Upgrade Services

Philadelphia, Pennsylvania

Ernesto Tagwerker, Founder & CTO at UpgradeJS.com | JavaScript Upgrade Services is an active investor based in Philadelphia, Pennsylvania. This profile covers what Ernesto Tagwerker backs, at which stage, and how founders can reach out in 2026.

Investor type: Angel
Stages: Pre SeedSeed
Invests in: SaaS & EnterpriseConsumer & RetailE-commerce & D2CMarketplace
Location: Philadelphia, Pennsylvania
Typical check: $150K

How to reach Ernesto Tagwerker

Angels and operators like Ernesto Tagwerker reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded.

Frequently Asked Questions

What does Ernesto Tagwerker invest in?

Ernesto Tagwerker invests in SaaS & Enterprise, Consumer & Retail, E-commerce & D2C and Marketplace, typically at Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.