Private company

SiriusDecisions

SiriusDecisions, Inc. was a global B2B research and advisory firm with headquarters in Wilton, Connecticut.2 It was founded in 2001 by John Neeson.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

2001Founded1

SiriusDecisions, Inc. was a global B2B research and advisory firm with headquarters in Wilton, Connecticut.2

The story

Founded by John Neeson in 2001.1

Leadership

Who has led SiriusDecisions, and when. Pick a name to see everywhere that person has worked.

Timeline

  1. 2001Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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