Just for the record,
NPM -> Microsoft
Vite -> Cloudflare
Bun -> Anthropic
Turbopack -> Vercel
Remix -> Shopify (I barely remember this one)
Biome (formerly Rome) -> Indie but largely supported by Depot
SWC -> Indie
esBuild -> Indie
I use RsBuild/RsPack which is ByteDance supported.
Nuxt & Nitro -> Vercel Svelte -> Vercel Astro -> Cloudflare
esbuild is a side-project of Evan Wallace, co-founder of Figma, so it's only kinda-indie.
Python but also add
Uv -> OpenAI