Who isTechonsite?

TECHONSITE is an Information Technology (IT) Solutions Provider dedicated to providing value added services to small and mid-size businesses throughout the Greater Los Angeles area.

We bring Fortune 500 solutions to small businesses…

Techonsite Corporation started with the idea that providing quality service and doing business with integrity are the cornerstones on which to build a successful business. Owner, J Chun started his career as a network administrator for a small investment firm which was later acquired by GE Capital and then spent several years at KTLA Channel 5, within the Tribune, a Fortune 500 company.

In 1998, J Chun started Techonsite as a one-man shop and over the years added many staff members and
service offerings and has been serving clients for over 15 years. Through the years many competitors have come and gone but Techonsite has stayed true to the
commitment to provide the highest level of customer
service and to deliver unsurpassed value to its clients.

KEY Benefits

of working with

Techonsite Corporation

Serving many clients for over 15 years.

Fortune 500 level solutions customized for small businesses

Up to 50% savings in costs over the
“fix-it-when-it’s-broke” approach

Expert consulting & advice where experience makes the difference.

Proactive services that can prevent problems before the start.

Actively Managed Services providing tangible results.

Using proven state-of-art solutions that lower costs.

Work We Do Best

Request For A Consultation

MAC, PC, Linux

Wireless Networks

Remote Administration

Data Backup and DR planning

Antivirus, Anti-Spyware,

Database Administration

Website Design &

IT Outsourcing

Cloud Computing

Security – Firewall, VPN

Network Support & Maintenance

Our CoreEmphasis

We focus on the following important aspects of Information Technology:

Secure Data

Protect data at all cost. No data should ever be lost.

  • More than one backup strategy is smart
  • Offsite backup is a must
  • Backup is only good if restoration works (Test restores)
  • Data Access Control
  • No shortcuts in Security

Simplify Access

Information at your fingertips.

  • Make data available easily
  • Solutions that make sense
  • Keep the end user in mind

Streamline Processes

Eliminate technology bloat.

  • More technology is not the answer
  • Data needs to flow and move fast
  • Optimize business processes



We stand behind the work we perform. If anyone is not satisfied with our work at any time, we will do what it takes to remedy the situation.


Your data and business proprietary information will besafe guarded. We never sell or rent company and personal info.


We strive for excellence in our profession by maintaining and enhancing our own knowledge and skills and encouraging the professional development of co-workers.


Looking for ways to utilize existing technology. Explore open source and alternative solutions.


Keeping clients Informed in an easy to understand language.
No techno-babble


Keeping clients Informed in an easy to understand language.
No techno-babble


Treat all persons fairly regardless of race, religion, gender, disability, age, or national origin.


All about Solutions. We take pride in
what we do.


Honesty is the
best policy.


To accept responsibility in our actions.


Dependable. Whatever it takes to get the job done.

Some of Our Valuable Clients

how much money
could you
be saving?

We've created a free tool that allows you to get a feel for how much your company could save by bringing on an IT consultant to streamline your systems. The results are not promises, but instead estimates that are based on information collected from the fields throughout the calculator.

it cost savings calculator

$ to $
$ to $
up to $


  • Hello Techonsite. As you know by now, our IT needs and services can get complicated and demanding at times. From the feedback I'm getting internally, your company has been a very good match for our needs. You are very responsive and good with follow through. So far nothing has fallen through the cracks and issues have been attended to in a timely fashion. Just wanted to let you know that we all appreciate what you do for us and hope to continue this relationship for years to come!

    Zari K. - CFO, McAllister - Office Pavillion

  • This letter is to attest to the immense value of TECHONSITE to the daily operations of NAWBO. We came to you at a time when the organization was in transition and you helped us streamline transitions and provided the efficiency we needed in our virtual office environment. You and your team came through with cost effective solutions by quickly evaluating the opportunities and issues in our organization and putting together a comprehensive plan in an expeditious manner. Cost, value, responsiveness and the right solution is important to us and we are very pleased with the results we have achieved... Read More >

    Helen Han - President & CEO, NAWBO

  • It is a real pleasure to express my thanks and gratitude to TECHONSITE for always being there when a problem arises. They always swiftly find the source of my computer problems either by remote support or a service call. The team is knowledgeable, highly professional, trusting and through their maintenance has kept many problems from occurring on our office computer equipment. From installing a new workstation and migrate all the data, troubleshoot Internet and e-mail connectivity issues to just a check-up, this team's educated computer knowledge makes all other technician mediocre.

    Rae MacDonald - Executive Director, Angeles Chorale

  • I am impressed with TechOnSite's professionalism and cost effective solutions to our IT needs. They came in and assessed our situation and provided us with easy to use tools that helped eliminate some inefficiencies in our workflow and data security. I now have peace of mind knowing that our data is secure and safe offsite. Now I can focus on serving our clients instead of worrying about IT problems. I recommend TechOnSite to all law firms!

    Timothy Richardson II, Esq. - McKenzie Law Group

  • I am pleased to say the support TECHONSITE provided our company has far exceeded our expectations. In particular, we have really noticed and appreciated the attention to detail, flexibility in availability and personal attention/integrity you provide. Knowing that our work on behalf of our customer, DirecTV, could not experience interruptions/downtime, working around our schedule (even on weekends, before/after business hours) made a real difference in our effectiveness and efficiency. The bottom-line is when I have experienced an IT issue, I know I could count on TECHONSITE... Read More >

    Dr. William Lindsey, President - Lincom Wireless

  • I have been utilizing Techonsite for my IT needs for approximately 5 years. The firm recently implemented the upgrade of a new server and workstations for my CPA firm. The majority of the work to configure the new server and workstations was done via remote login to my network, therefore there was no disruption to my normal day to day operation. The final steps of the implementation was done on a weekend so when my employees came to work on a Monday, they had new computers that were operational and the same desktop display as their old computers. I chose Techonsite for the implementation because they have been responsive to my IT needs, they listen to the customer and do not try to oversell services, but they do offer recommendation for all IT needs. In summary, I would definitely recommend Techonsite to all business that need excellent technical support.

    John Weldon, CPA

We Are Certified

On staff, we have the following certified professionals.