Quick answers
Who is Jeremy Greven?
A co-founder of Manifest Climate. The company's team page, checked in September 2026, lists him as Co-Founder and Advisor. BetaKit's March 2022 article on the Series A captioned him as a co-founder alongside Laura Zizzo and described him as Manifest's president.
When did Jeremy Greven join Manifest Climate?
In May 2020. A May 11, 2020 post on the company blog, a message from CEO Laura Zizzo, welcomed him as President of Mantle314 (founded in 2015) to build a technical team for its first software product, Manifest. The February 2021 post announcing the rebrand to Manifest Climate says Zizzo had joined forces with him a year earlier.
What did Jeremy Greven do before Manifest Climate?
Manifest Climate's team page, checked in September 2026, says he founded and ran Prompt Alert, which was ranked in Profit Magazine's Top 500 and sold in 2014 to Stericycle. At Stericycle he was VP, Innovation and Strategy and worked on the mergers and acquisitions team.
What else is Jeremy Greven involved in?
The same Manifest Climate team page, checked in September 2026, lists him as Chairman of the Board at Peerscale, a non-profit for technology executives, and as an Associate at the Creative Destruction Lab at the University of Toronto's Rotman School of Management. The page is undated.