Altimeter Capital @AltimeterCap · 19 Aug 2026
Eight months after Erik Kriessmann (@ekriessmann) led @Castelion's Series B, Altimeter is pumped to deepen our commitment and continue our partnership with Bryon (@hargsb), Sean, Andrew, and the entire Castelion team as they announce their $1B Series C at a $13B valuation.
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