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Spero Investment Thesis

Why We Invested in Sora Fuel

by Stephen Wemple and Marc Tarpenning • Apr 8, 2026

Co-leading Sora Fuel's $14.6M round.

Spero Investment Thesis

Why We Invested in Wattch

by Stephen Wemple and Marc Tarpenning • Aug 7, 2025

Leading Wattch's $6M Seed round.

Spero Investment Thesis

Why We Invested in Persist AI

by Sara Eshelman and Nolan Shah • May 19, 2025

Leading Persist's Series A.

Spero Investment Thesis

Why We Invested in Aralez Bio

by Sara Eshelman • Oct 30, 2024

Co-leading Aralez Bio's $12M Series A.

Spero Investment Thesis

Why We Invested in Tiny Health

by Sara Eshelman • Jun 11, 2024

Leading Tiny Health's $8.5M Series A.

Spero Investment Thesis

Why We invested in Telo Trucks

by Marc Tarpenning and Stephen Wemple • Mar 14, 2024

Co-leading Telo's $5.4M seed round.

Speaking

Marc: AI & future of the electric car

by Marc Tarpenning • May 17, 2023

Podcasts

Marc: Co-founding Tesla

by Marc Tarpenning • Sep 23, 2022

Spero Investment Thesis

Why We Invested in Singularity

by Marc Tarpenning • May 24, 2022

Leading Singularity's $4.5M Seed round.

Writing

The future of breathing + Node-S

by Marc Tarpenning • Oct 21, 2021

Discover how hyperlocal air quality impacts your health and well-being, and explore the groundbreaking solution addressing pollution in neighborhoods worldwide.