CROSS-CATEGORY: 'AI-Native Layer' Architecture Dominates Funding Week — Five Companies Across Five Categories All Build Alongside, Not Instead Of

SaaS Rise·high signal

Five companies that raised $40M-$125M in the same week share an identical architectural pattern: AI-native layers that sit alongside existing systems rather than replacing them wholesale. Reevo (GTM layer alongside CRM), Doss (inventory layer alongside ERP), Granola (context layer alongside collaboration tools), Qodo (verification layer alongside code generators), Rocketlane Nitro (execution layer alongside PSA). None positions as a rip-and-replace. All position as the AI-native complement to legacy infrastructure. This 'layer, not replacement' pattern is emerging as the dominant go-to-market strategy for AI-native SaaS in 2026.