Cloudflare is a US web infrastructure and security company offering CDN, DDoS protection, DNS, zero-trust security and edge computing services to a large share of websites.
Fastly is a US edge cloud platform offering content delivery, edge computing, security and real-time streaming services that help developers deliver fast online experiences.
Akamai is a US content delivery and cybersecurity company offering edge computing, CDN, web security and cloud services that protect and speed up online businesses.
Vercel is a US frontend cloud platform and creator of Next.js, offering developers hosting, serverless functions, edge network and preview deployments for modern web applications.