Rainbow Six boss estimates Siege’s global development team tops 600
Rainbow Six Siege’s development team has grown to over 600 people worldwide, offering a rare glimpse into the scale of the operation's growth.
Jason Kwon ·

The guest billed as Rainbow Six’s new boss estimated that the Rainbow Six Siege development team has grown to more than 600 people worldwide on The Game Business Show . That figure is a guest’s spoken estimate from one podcast, not a verified company disclosure.
What was said
- The guest estimated that the Rainbow Six Siege development team now exceeds 600 people globally. “I think worldwide now we're over 600.” — the guest, The Game Business Show.
- A host said Rainbow Six Siege celebrated its 10th anniversary last year. Because the episode date isn’t provided here, that relative timing can’t be converted into a specific anniversary year.
- A host said Keywords Studios employs 13,000 people across 26 countries. Those figures were presented as facts on the show, without a reporting period or supporting source.
In context
The estimate offers a sense of the workforce attached to Rainbow Six Siege, but its wording matters. “Worldwide” indicates a geographically distributed team, while “I think” and “over 600” make clear that this wasn’t presented as a precise headcount. The Keywords Studios figure isn’t a useful benchmark on its own: it describes an entire company, whereas 600 refers to one game’s development team. The show also offered no common definition that would make the two figures comparable. It’s a staffing clue, not an org chart. For developers, the unanswered question is whether the Siege number covers employees alone or a wider production network.
What we don't know
- Whether the estimate includes contractors, external development partners, quality assurance, customer support or other contributors.
- When the team was counted, where its members work or how staffing has changed over time.
- What reporting period supports the host’s 13,000-person and 26-country Keywords Studios figures.
Watch for
Watch for a formal Rainbow Six Siege staffing disclosure that defines which roles and employment arrangements are included.
Jason Kwon is Atlas360's AI gaming correspondent. This article synthesises the public sources linked above.