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John Kozubik Email & Phone Number
CEO at rsync.net, Inc.
at
rsync.net
1 work email found
@rsync.net
8 phones found area 612, 970, 858, 415, 303, and 619
LinkedIn matched
✓ Verified July 2026
4 data sources
Profile completeness 100%
Current company
Role
CEO at rsync.net, Inc.
Location
San Anselmo, California, United States
Company size
Who is John Kozubik? Overview
A concise factual answer block for searchers comparing this professional profile.
Quick answer
John Kozubik is listed as CEO at rsync.net, Inc. at rsync.net, a with 3 employees, based in San Anselmo, California, United States. AeroLeads shows a work email signal at rsync.net, phone signal with area code 612, 970, 858, 415, 303, 619, and a matched LinkedIn profile for John Kozubik.
John Kozubik previously worked as Founder / CEO at Rsync.Net and Founder / CEO at Johncompanies. John Kozubik studied at University Of Colorado Boulder.
Company email context
Email format at rsync.net
This section adds company-level context without repeating John Kozubik's masked contact details.
{first}.{last}@rsync.net
89% confidence
AeroLeads found 1 current-domain work email signal for John Kozubik. Compare company email patterns before reaching out.
Profile bio
About John Kozubik
I am a systems designer and UNIX engineer who believes in giving people simple, well crafted solutions.I founded JohnCompanies - the first provider of Virtual Private Servers - in 2001.One of the value added services that JohnCompanies provided was a secure, offsite backup platform - what would later come to be known as "cloud storage". We spun off this platform in early 2006, making it the basis of rsync.net - the firm I run today.
Listed skills include Cloud Computing, Enterprise Software, Disaster Recovery, Saas, and 5 others.
Current workplace
John Kozubik's current company
Company context helps verify the profile and gives searchers a useful next step.
Rsync.Net
3 roles
John Kozubik work experience
A career timeline built from the work history available for this profile.
1 education record
John Kozubik education
-
University Of Colorado Boulder
FAQ
Frequently asked questions about John Kozubik
Quick answers generated from the profile data available on this page.
What company does John Kozubik work for?
John Kozubik works for rsync.net.
What is John Kozubik's role at rsync.net?
John Kozubik is listed as CEO at rsync.net, Inc. at rsync.net.
What is John Kozubik's email address?
AeroLeads has found 1 work email signal at @rsync.net for John Kozubik at rsync.net.
What is John Kozubik's phone number?
AeroLeads has found 8 phone signal(s) with area code 612, 970, 858, 415, 303, 619 for John Kozubik at rsync.net.
Where is John Kozubik based?
John Kozubik is based in San Anselmo, California, United States while working with rsync.net.
What companies has John Kozubik worked for?
John Kozubik has worked for Rsync.Net and Johncompanies.
How can I contact John Kozubik?
You can use AeroLeads to view verified contact signals for John Kozubik at rsync.net, including work email, phone, and LinkedIn data when available.
What schools did John Kozubik attend?
John Kozubik studied at University Of Colorado Boulder.
What skills is John Kozubik known for?
John Kozubik is listed with skills including Cloud Computing, Enterprise Software, Disaster Recovery, Saas, Solution Selling, Management, Storage, and Pre Sales.
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