Why Choose eShield as Your IT Partner?

Looking for an IT company that is committed to seeing you succeed? Let us show you what we can do for your Bay Area business.

Why Choose eShield?


We’re an IT company dedicated to serving small and medium sized businesses.

secure infrastructure

We’ll equip your organization with a secure infrastructure designed to keep you secure and productive..

growing your business

We’ll be responsible for your technology so you can focus on growing your business.

What Clients are saying about us!

John ScivallyJohn Scivally
19:33 22 Dec 23
The customer service is second to none and Mark is excellent. He knows how to get the business what is needed. I recommend him for all IT needs.
Todd GrisantiTodd Grisanti
22:44 21 Dec 23
I have worked with Mark from eShield for a while now. He has always made himself available when we have had issues. For example, he helped trouble shoot a downed internet connection while on vacation.He has saved me time by finding and vetting products and services.
Jayne RaffertyJayne Rafferty
21:45 22 Oct 23
I have worked with eShield for over 10 years. They provide excellent and timely service. I would, without hesitation, recommend eShield for any and all of your computer and security needs.
Vlad GalantVlad Galant
20:51 12 Jun 23
Well established and professional company to take care of your IT needs
Ronan ShortRonan Short
19:32 09 Nov 22
What an absloute ledgend Mark is. We had an issue with our VMware Server. We reached out to Mark and he had us backup and running in no time at all. I would highly recommend Mark and his team to help with your business IT needs.
Kirian FitzgibbonsKirian Fitzgibbons
17:19 26 Jul 22
Mark has been my go to Technology Guru for the last 10+ years. Efficient, Responsive, affordable and equally high quality subject matter expertise are key words when taking about what Mark brings to the table on any project we have engaged him with. I can’t recommend eSheild highly enough!!!
Sheldon LivingstonSheldon Livingston
18:22 25 Jul 22
Mark certainly knows his stuff! I had a pretty involved email issue that Mark resolved in relatively short order. Thank you Mark!
John WhitmanJohn Whitman
21:59 30 Jun 22
I've worked with Mark Lemmo and his team a number of times. I highly recommend them both for their work and their willingness to respond quickly to last minute or off-hours problems.
Bob MarchantBob Marchant
18:33 30 Jun 22
Good company. Good service. Very helpful
marcel sloanemarcel sloane
22:51 29 Jun 22
We've worked with Mark and his team for years. His IT expertise has been vital to our operations.
John ValentineJohn Valentine
17:25 20 May 22
Mark is knowledgeable, diligent and responsive. He’s helped us with both the hardware and software ends of networking issues, as well as working on individual work stations and our a/v system. Couldn’t ask for much more from a tech support crew! We are very pleased with eShield!!

An Experienced Team of IT Professionals

Founded in 2001, eShield has expanded and grown quickly to offer comprehensive IT services and VoIP services to local organizations like yours. 

As an MSP for small and medium-sized businesses, our team understands that the need for IT services grows as your business does.

eShield is ready to strengthen current weak points so your business can meet client demands without worrying about infrastructure or security. 

When you operate a business, you have enough on your plate. We take the pressure off of you so that you can focus on your customers.

eShield also serves other cities besides San Ramon including Concord, Danville, Lafayette, and Walnut Creek.

employee working remotely

What do Businesses Get with eShield?

Maximum Support

The infrastructure, network, and security of your business can feel overwhelming to keep up with, especially as operations grow. With eShield, IT solutions are leveraged for maximum support and value.

Affordable Solutions

When you choose eShield, your business gets corporate tools, services, and expertise without the corporate price tag.

Our experience in the corporate world combined with our passion for small and medium-sized businesses sets eShield apart from the competition.

Leverage technology to support your business.

The Right Tools for Growth


Streamlined Toolkit

Your business needs the right tools to serve its clients and maintain its reputation. With eShield, those tools are readily available. Everything is in one place, and eShield makes it easy for your business to move forward.

help desk

Reliable Support

A North American-based Help Desk is one of the many perks of working with eShield. Getting needed support at the right time can make all the difference for a business that is trying to succeed and grow. When your business knows it can contact support there is less to worry about in helping clients.

security everywhere

Nonstop Security

eShield also provides a Best in Class North American-based 24/7 Network and Security Operations Center that supplies real-time responses to network or security issues as they happen.

We’re dedicated to helping you reach your goals.

A Partner That Drives Success

Products and technology matter, but the real reason to work with eShield is the expertise and partnership we bring to your business. Serving clients in the California Bay Area, our goal is to respond as rapidly as needed to address any issues that arise. When you partner with eShield, we will become some of the most dedicated members of your team.

Ready to partner with a business that takes your organization and its needs seriously? Together, we can accomplish more.

What do Businesses Get with eShield?

Looking for a managed service provider that is committed to seeing you succeed? Let us show you what we can do for your Bay Area business.