How many companies use Cloudflare vs Customer.io?

470,199 companies use Cloudflare and 25 companies use Customer.io in our database. Cloudflare is more widely adopted with 18808.0x more companies than Customer.io.

Can I get a list of companies using both Cloudflare and Customer.io?

Yes. AgentData tracks companies using both tools. Sign up free to access the full list with emails, tech stacks, and contacts via CSV or API.

Cloudflare vs Customer.io

Cloudflare is used by 470,199companies — 18808.0x more than Customer.io (25).

470,199 use Cloudflare25 use Customer.io

Side-by-side comparison

	Cloudflare	Customer.io
Companies	470,199	25
Category	Other	email_marketing

Company adoption

Top companies using Cloudflare

Experience Avalonexperienceavalon.com

095095.bet

Ação Brasilacaobrasil.org.br

Benny & Co.benny-co.com

VR Voomvrvoom.co.nz

Top companies using Customer.io

Hisachaka.com

Beefreebeefree.io

HVGinfo.hvg.hu

PharmacyOS - PillPackpharmacyos.com

urllolinks.urllo.com

Get the full comparison

470,224 companies with emails, tech stacks, and contacts

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1,000 lookups · API access · CSV exports

API access

GET /api/v1/tech?name=cloudflare

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