People · Operator

Brian Sereda

Named in public records as an officer, director or promoter · active 2022–2025 · Computers, Other Technology

2
Companies
3
Filings
$936.6M
Combined raised · real
Serial
Operator type
Companies
CompanyRoleSectorStageRaised · realValue · estTied
QuantinuumComputersGrowth/Late$890.8M$9.4B2025
Rigetti Computing, Inc.Other TechnologySeries C$45.8M$12.7M2022
Operator network

Brian Sereda at the center, the companies they're named on, and every other operator named alongside them — an interlock map of shared founding teams, boards and funds. Name-matched, so treat as a research lead.

Anne Madden · 2 companies · 1 sharedAnne MaddenGeorge Sherman · 2 companies · 1 sharedGeorge ShermanGregory Lewis · 2 companies · 1 sharedGregory LewisNiels Nielsen · 2 companies · 1 sharedNiels NielsenAvinash Palaniswamy · 1 companies · 1 sharedAvinash Palaniswa…Darius Adamczyk · 1 companies · 1 sharedDarius AdamczykDenise Holmquist · 1 companies · 1 sharedDenise HolmquistIlyas Khan · 1 companies · 1 sharedIlyas KhanJennifer Strabley · 1 companies · 1 sharedJennifer StrableyDavid Cowan · 11 companies · 1 sharedDavid CowanRay Johnson · 4 companies · 1 sharedRay JohnsonGreg Peters · 3 companies · 1 sharedGreg PetersCathy McCarthy · 2 companies · 1 sharedCathy McCarthyRajeev S. Singh · 2 companies · 1 sharedRajeev S. SinghSpencer M. Rascoff · 2 companies · 1 sharedSpencer M. RascoffAlexander M. Klabin · 1 companies · 1 sharedAlexander M. Klab…Alissa Fitzgerald · 1 companies · 1 sharedAlissa FitzgeraldChad Rigetti · 1 companies · 1 sharedChad RigettiDamien S. Hooper-Campbell · 1 companies · 1 sharedDamien S. Hooper-…Gregg S. Renfrew · 1 companies · 1 sharedGregg S. RenfrewH. Gail Sandford · 1 companies · 1 sharedH. Gail SandfordJim S. Lanzone · 1 companies · 1 sharedJim S. LanzoneQuantinuum · $890.8M raisedQuantinuumRigetti Computing, Inc. · $45.8M raisedRigetti Computing, In…Brian SeredaBS
Brian Sereda Company Co-operator (ring = serial)Hover to isolate ties · click to open
Co-operators (shared boards)

People named alongside Brian Sereda on the same companies — an interlock signal (shared founding team, board, or fund). Name-matched, so verify before acting.

OperatorSharedTheir companies
David Cowan111
Ray Johnson14
Greg Peters13
George Sherman12
Rajeev S. Singh12
Spencer M. Rascoff12
Anne Madden12
Cathy McCarthy12
Niels Nielsen12
Gregory Lewis12
Suresh Venkatarayalu11
Darius Adamczyk11
Michael Clifton11
H. Gail Sandford11
Mike Harburn11
Chad Rigetti11
Alissa Fitzgerald11
Rick Danis11
Alexander M. Klabin11
Katie S. Curnutte11

People are matched by normalized name across records; a common name may merge distinct individuals. Treat as a research lead, the same way modeled valuations are directional, not quoted.