Founder
CurrentTechnology Consulting services, Product Management, IT Security consulting, IT Support Services, Networking solutions, VoIP Phone Systems and Security
2006 - Present
~20 yrs 6 mos
AeroLeads people directory · profile
Mark Lemmo Email & Phone Number
Principal at eShield | Providing Enterprise level IT Services and Support for your Business.
at
eShield
LinkedIn matched
✓ Verified Jul 2026
3 data sources
Profile completeness 86%
Current company
Role
Principal at eShield | Providing Enterprise level IT Services and Support for your Business.
Location
San Ramon, California, United States
Who is Mark Lemmo? Overview
A concise factual answer block for searchers comparing this professional profile.
Quick answer
Mark Lemmo is listed as Principal at eShield | Providing Enterprise level IT Services and Support for your Business. at eShield, based in San Ramon, California, United States. AeroLeads shows a matched LinkedIn profile for Mark Lemmo.
Mark Lemmo previously worked as Founder at Eshield and Principal at Eshield. Mark Lemmo holds Bsee, Electrical Engineering, Computer Science, Fire Protection Of All Things from University Of Maryland.
Company email context
Email format at eShield
This section adds company-level context without repeating Mark Lemmo's masked contact details.
eShield
Review company-level records connected to Mark Lemmo before choosing the right outreach path.
Profile bio
About Mark Lemmo
Principal, eShield SystemsDirector - Canon Business SolutionsExecutive at Node Infotech Inc.VP Engineering, High Density Networks VP Product Management, Authenex Inc.Director, Sun Microsystems 2002 - 1997Specialties: IT Support Services, Security, Network and Storage software development
Current workplace
Mark Lemmo's current company
Company context helps verify the profile and gives searchers a useful next step.
15 roles · 50 years
Mark Lemmo work experience
A career timeline built from the work history available for this profile.
Principal
CurrentTechnology Consulting services, Product Management, IT Security consulting, IT Support Services, Networking solutions, VoIp Phone Systems and Security
Jan 2000 - Present
Aug 2008 - May 2010
Sep 2004 - Jun 2008
Vp, Engineering
VP Engineering - WISP - Wireless Internet Service Provider for Multi Tenent Apartments.
Oct 2004 - Oct 2005
Feb 2003 - Apr 2004
Network Engineering
1999 - 2000
~1 yr
Professional Services
1998 - 1999
~1 yr
Engineering Manager
Mar 1996 - Oct 1998
Network Manager, Interop
Ziff-Davis Expos (Formerly Interop Co.)
1992 - 1994
~2 yrs
Network Engineer
1992 - 1994
~2 yrs
Aug 1987 - Oct 1992
Field Engineer
1983 - 1987
~4 yrs
Space Systems Equipment Specialist
1981 - 1982
~1 yr
1T2X1
1977 - 1981
~4 yrs
1 education record
Mark Lemmo education
-
University Of Maryland
FAQ
Frequently asked questions about Mark Lemmo
Quick answers generated from the profile data available on this page.
What company does Mark Lemmo work for?
Mark Lemmo works for eShield.
What is Mark Lemmo's role at eShield?
Mark Lemmo is listed as Principal at eShield | Providing Enterprise level IT Services and Support for your Business. at eShield.
Where is Mark Lemmo based?
Mark Lemmo is based in San Ramon, California, United States while working with eShield.
What companies has Mark Lemmo worked for?
Mark Lemmo has worked for Eshield, Canon Business Solutions, High Density Networks, Authenex, and Peoplesoft.
How can I contact Mark Lemmo?
You can use AeroLeads to view verified contact signals for Mark Lemmo at eShield, including work email, phone, and LinkedIn data when available.
What schools did Mark Lemmo attend?
Mark Lemmo holds Bsee, Electrical Engineering, Computer Science, Fire Protection Of All Things from University Of Maryland.
Find 750M verified contacts
Search by job title, company, industry, location, and seniority. Export verified B2B contact data when you need it.
Start free trial