founders.io

⌕

Companies Founders Mafias

Rankings Reports Ex-company founders By founding year Investors Connection finder Y Combinator 6,016 Unicorns 🦄 Startup mafias About

Contribute

⌕

Companies Founders Rankings Reports Investors Startup mafias Connection finder Y Combinator Unicorns 🦄 About Contribute

Home /Founders /David Schaeffer

D

Founder

David Schaeffer

David Schaeffer founded Cogent Communications (1999).

Telecom Since 1999

Suggest an edit

Share ↗

Post on X Share on LinkedInDownload card (PNG)

Companies founded by David Schaeffer

1

C

Cogent Communications Private

At a glance

Companies1

Corrections

Spot an error? Report a correction.
Is this you and you'd rather not be listed? Request removal.

Home Search Rankings Mafias Add

founders.io

The Founder Graph — the living map of who founded what, and where they came from before. A free, open reference. How this is built →

Explore

Startup mafias Repeat founders Companies by sector Rankings Reports Ex-company founders By founding year Investors Connection finder Search

Contribute

Add to the graph Report a correction Data & sources Privacy & removal Contact Unicorns 🦄 YC companies