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Quick answers
Did Zack Elias co-found Reactiv?
Yes. Reactiv's own team page, read 2026-10-21, lists him under "Our founders" as "Co-Founder & COO" beside Ross Correia (CEO) and Mike Pezzi (CTO). Fortune (2024-10-28) opened its seed-round story with "Zack Elias and Ross Correia, two Shopify alums" and captioned its photo "Reactiv cofounders Ross Correia, Zack Elias, and Mike Pezzi." BetaKit (2026-10-06) calls him "Co-founder and COO Zack Elias."
What is Zack Elias's role at Reactiv today?
Chief operating officer. Reactiv's team page and his author page on reactiv.ai, both read 2026-10-21, give the title "Co-Founder & COO" and "COO & Co-Founder"; the team page says "Zack runs the partner ecosystem Reactiv grows with." BetaKit (2026-10-06) quoted him as co-founder and COO on the Kin Commerce acquisition, which it said closed in early September 2026 and took Reactiv to 31 employees.
What did Zack Elias do before Reactiv?
Reactiv's team page, read 2026-10-21, says he spent "Four years at Shopify" and was then "the first North American hire" at Plobal Apps, where he led partnerships. His reactiv.ai author page, also read 2026-10-21 and written by the company, adds that the Shopify years covered merchant support, app review and App Store operations before payments partnerships, and that at Plobal Apps he built the partnerships program from scratch. Fortune (2024-10-28) describes Elias and Correia as "two Shopify alums." No fetched page says where he studied.
Has Zack Elias spoken at TechTO?
No. Reactiv's one TechTO stage appearance is by co-founder and CEO Ross Correia, who gave the talk "From Selling Rolexes to a $5M Round" in October 2026. Elias has spoken to the press: BetaKit (2026-10-06) quoted him saying the Kin acquisition "definitely wasn't in my 2026 bingo card," and Fortune (2024-10-28) quoted him on keeping Reactiv a Canadian business.