J
Jellyfish
Other B2B Software · Boston, United States · Founded 2017
Jellyfish mafia
Startups founded by Jellyfish alumni
Former Jellyfish employees who went on to start their own companies. Sorted by Dealroom signal score.
Paul WalshUnited Kingdom
Raphaël MasbouFrance
Simone SangiorgiItaly
Matthieu LecuyerFrance
Thibault De BroissiaFrance
Benjamin DouablinFrance
Jessica McgloryUnited States
Mark McguireUnited States
Jonathan BordereauFrance
Brian WiegandUnited KingdomGlobal footprint
Where Jellyfish has talent and traffic
across markets
Talent graph
The shape of Jellyfish's talent
Dealroom maps Jellyfish's team person by person — pinpointing the standout operators and scoring them across the six dimensions investors underwrite. The counts and shape below are a public preview; the named individuals and exact scores live in the platform.
Source: Dealroom Talent Intelligence. Public profiles show counts and the team's shape only — request a demo for the named individuals, per-person seniority and tenure, and team benchmarks vs peers.
Market sentiment
What the market is saying about Jellyfish
An AI-synthesized read of the highest-engagement posts about Jellyfish on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.
Reading the room on X — pulling top posts and synthesizing themes…
Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour
See Jellyfish on the full Dealroom platform
Live deal flow, founder pedigree, hiring signals, revenue trajectory, and the full cap table.