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John O'Brien Email & Phone Number
Federal Firearms Licensee
at
ATF
1 work email found
@cisco.com
LinkedIn matched
✓ Verified Jun 2026
3 data sources
Profile completeness 86%
Current company
Role
Federal Firearms Licensee
Location
Plano, Texas, United States
Company size
Who is John O'Brien? Overview
A concise factual answer block for searchers comparing this professional profile.
Quick answer
John O'Brien is listed as Federal Firearms Licensee at ATF, a company with 2165 employees, based in Plano, Texas, United States. AeroLeads shows a work email signal at cisco.com and a matched LinkedIn profile for John O'Brien.
John O'Brien previously worked as President at Jlo Capital Ventures, Llc.
Company email context
Email format at ATF
This section adds company-level context without repeating John O'Brien's masked contact details.
*@cisco.com
68% confidence
AeroLeads found 1 current-domain work email signal for John O'Brien. Compare company email patterns before reaching out.
Profile bio
About John O'Brien
John O'Brien is a Federal Firearms Licensee at ATF. He possess expertise in unified communications, cloud computing, managed services, telephony, cisco technologies and 36 more skills.
Listed skills include Unified Communications, Cloud Computing, Managed Services, Telephony, and 37 others.
Current workplace
John O'Brien's current company
Company context helps verify the profile and gives searchers a useful next step.
3 roles · 19 years
John O'Brien work experience
A career timeline built from the work history available for this profile.
President
Current
Jlo Capital Ventures, Llc
2007 - Present
~19 yrs 5 mos
Federal Firearms Licensee
Current
Oct 2019 - Present
Team & coworkers
Colleagues at ATF
Other employees you can reach at atf.gov. View company contacts for 2165 employees →
KD
Karen.Dutton Dutton
Colleague at AtfNew Alexandria, Virginia, United States, United States
View →
RG
Richard Grzegorczyk
Colleague at AtfGrosse Ile Township, Michigan, United States, United States
View →
LR
Laverne Reaves
Colleague at AtfWashington, District Of Columbia, United States, United States
View →
DK
Daniel K.
Colleague at AtfFront Royal, Virginia, United States, United States
View →
PP
P Perry
Colleague at AtfUnited States, United States
View →
GC
Gary C.
Colleague at AtfSpringfield, Virginia, United States, United States
View →
EG
Erin Giles-Dobbs
Colleague at AtfKnoxville, Tennessee, United States, United States
View →
ND
Ned Dixon
Colleague at AtfWashington, District Of Columbia, United States, United States
View →
AA
Alfredo Ali Marina
Colleague at AtfUnited States, United States
View →
OB
Omar Barreto
Colleague at AtfFullerton, California, United States, United States
View →
Karen.Dutton Dutton
Colleague at AtfNew Alexandria, Virginia, United States, United States
View →
RG
Richard Grzegorczyk
Colleague at AtfGrosse Ile Township, Michigan, United States, United States
View →
LR
Laverne Reaves
Colleague at AtfWashington, District Of Columbia, United States, United States
View →
DK
Daniel K.
Colleague at AtfFront Royal, Virginia, United States, United States
View →
PP
P Perry
Colleague at AtfUnited States, United States
View →
GC
Gary C.
Colleague at AtfSpringfield, Virginia, United States, United States
View →
EG
Erin Giles-Dobbs
Colleague at AtfKnoxville, Tennessee, United States, United States
View →
ND
Ned Dixon
Colleague at AtfWashington, District Of Columbia, United States, United States
View →
AA
Alfredo Ali Marina
Colleague at AtfUnited States, United States
View →
OB
Omar Barreto
Colleague at AtfFullerton, California, United States, United States
View →
FAQ
Frequently asked questions about John O'Brien
Quick answers generated from the profile data available on this page.
What company does John O'Brien work for?
John O'Brien works for ATF.
What is John O'Brien's role at ATF?
John O'Brien is listed as Federal Firearms Licensee at ATF.
What is John O'Brien's email address?
AeroLeads has found 1 work email signal at @cisco.com for John O'Brien at ATF.
Where is John O'Brien based?
John O'Brien is based in Plano, Texas, United States while working with ATF.
What companies has John O'Brien worked for?
John O'Brien has worked for Atf and Jlo Capital Ventures, Llc.
Who are John O'Brien's colleagues at ATF?
John O'Brien's colleagues at ATF include Karen.Dutton Dutton, Richard Grzegorczyk, Laverne Reaves, Daniel K., and P Perry.
How can I contact John O'Brien?
You can use AeroLeads to view verified contact signals for John O'Brien at ATF, including work email, phone, and LinkedIn data when available.
What skills is John O'Brien known for?
John O'Brien is listed with skills including Unified Communications, Cloud Computing, Managed Services, Telephony, Cisco Technologies, Telepresence, Voip, and Enterprise Software.
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