CompetitorsThin moat

CoreWeave leads the specialised AI cloud market it helped create — roughly 35.4% of buyers and 50.8% of dollars in the first quarter of 2026¹ — while holding a trivial share of cloud computing overall. Both facts matter, because the market it dominates is a niche inside one that Amazon, Microsoft and Google control to the tune of about 65%.

That produces a genuinely awkward competitive set. The hyperscalers are CoreWeave's largest customers and its most dangerous rivals simultaneously; the customers-as-competitors argument has its own root threat, so these pages cover the competitive half — Microsoft alone plans to spend over $80 billion on AI data centres in 2026, building the capacity it currently rents.

Below them sit the other neoclouds. Nebius, Lambda and Crusoe target the same AI-native customers with comparable GPU clusters, and Crusoe's profile is revealing: about 27.7% of dollars from just 3.0% of buyers — an even more concentrated version of CoreWeave's own model. Nvidia, meanwhile, is CoreWeave's supplier, its investor and, through its own cloud offerings, a competitor.

And there is a competitor CoreWeave has simply conceded: as of the first quarter of 2026 it had no regions in Asia-Pacific. Watch CoreWeave's share of AI infrastructure dollars rather than its revenue growth. Revenue grows because the market is exploding; share is the only measure of whether the lead is holding.