John Ryan
4 email domains
AeroLeads people directory · profile
John Ryan Email & Phone Number
Senior Field Service Technician
at
Sigma Wireless Communications Limited
LinkedIn matched
✓ Verified August 2026
2 data sources
Profile completeness 71%
Current company
Role
Senior Field Service Technician
Location
Ireland
Company size
Who is John Ryan? Overview
A concise factual answer block for searchers comparing this professional profile.
Quick answer
John Ryan is listed as Senior Field Service Technician at Sigma Wireless Communications Limited, a with 29 employees, based in Ireland. AeroLeads shows a matched LinkedIn profile for John Ryan.
Company email context
Email format at Sigma Wireless Communications Limited
This section adds company-level context without repeating John Ryan's masked contact details.
Sigma Wireless Communications Limited
Review company-level records connected to John Ryan before choosing the right outreach path.
Profile bio
About John Ryan
John Ryan is a Senior Field Service Technician at Sigma Wireless Communications Limited.
Current workplace
John Ryan's current company
Company context helps verify the profile and gives searchers a useful next step.
Sigma Wireless Communications Limited
1 role
John Ryan work experience
A career timeline built from the work history available for this profile.
-
Senior Field Service Technician
Team & coworkers
Colleagues at Sigma Wireless Communications Limited
Other employees you can reach at sigmawireless.com. View company contacts for 29 employees →
JM
John Mcmullan
Colleague at Sigma Wireless Communications LimitedIreland
View →
PM
Pat Mccaughey
Colleague at Sigma Wireless Communications LimitedIreland
View →
PD
Paul Donnelly
Colleague at Sigma Wireless Communications LimitedIreland
View →
RW
Ray Waldron
Colleague at Sigma Wireless Communications LimitedIreland
View →
TB
Tony Boyle
Colleague at Sigma Wireless Communications LimitedCascais, Lisbon, Portugal
View →
TH
Trish Howard
Colleague at Sigma Wireless Communications LimitedIreland
View →
KS
Ken Sherry
Colleague at Sigma Wireless Communications LimitedIreland
View →
SM
Shaun Mcginley
Colleague at Sigma Wireless Communications LimitedIreland
View →
EL
Edel Lally
Colleague at Sigma Wireless Communications LimitedIreland
View →
CL
Carole Lawler
Colleague at Sigma Wireless Communications LimitedCounty Dublin, Ireland
View →
John Mcmullan
Colleague at Sigma Wireless Communications LimitedIreland
View →
PM
Pat Mccaughey
Colleague at Sigma Wireless Communications LimitedIreland
View →
PD
Paul Donnelly
Colleague at Sigma Wireless Communications LimitedIreland
View →
RW
Ray Waldron
Colleague at Sigma Wireless Communications LimitedIreland
View →
TB
Tony Boyle
Colleague at Sigma Wireless Communications LimitedCascais, Lisbon, Portugal
View →
TH
Trish Howard
Colleague at Sigma Wireless Communications LimitedIreland
View →
KS
Ken Sherry
Colleague at Sigma Wireless Communications LimitedIreland
View →
SM
Shaun Mcginley
Colleague at Sigma Wireless Communications LimitedIreland
View →
EL
Edel Lally
Colleague at Sigma Wireless Communications LimitedIreland
View →
CL
Carole Lawler
Colleague at Sigma Wireless Communications LimitedCounty Dublin, Ireland
View →
FAQ
Frequently asked questions about John Ryan
Quick answers generated from the profile data available on this page.
What company does John Ryan work for?
John Ryan works for Sigma Wireless Communications Limited.
What is John Ryan's role at Sigma Wireless Communications Limited?
John Ryan is listed as Senior Field Service Technician at Sigma Wireless Communications Limited.
Where is John Ryan based?
John Ryan is based in Ireland while working with Sigma Wireless Communications Limited.
What companies has John Ryan worked for?
John Ryan has worked for Sigma Wireless Communications Limited.
Who are John Ryan's colleagues at Sigma Wireless Communications Limited?
John Ryan's colleagues at Sigma Wireless Communications Limited include John Mcmullan, Pat Mccaughey, Paul Donnelly, Ray Waldron, and Tony Boyle.
How can I contact John Ryan?
You can use AeroLeads to view verified contact signals for John Ryan at Sigma Wireless Communications Limited, including work email, phone, and LinkedIn data when available.
Find 750M verified contacts
Search by job title, company, industry, location, and seniority. Export verified B2B contact data when you need it.
Start free trialPeople with similar names
Check these profiles if this is not the John Ryan you were looking for.
View similar profiles
