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About IT-SD

Your Technical Support Specialist

IT-SD offers the following services. If you do not see the help you need specifically enumerated in the list, we would still love to hear from you. If it turns out we can’t help you, there’s a good change we know of somebody who can.

  • Apple Computer, iPhone & iPad Support & Repair
  • Microsoft Windows PC Computer Support & Repair
  • Google Android Smartphone & Tablet Support & Repair
  • Router, Modem, Switch & Wireless AP Setup & Support
  • Computer & Mobile Security, Malware Support, Firewalls
  • Viruses, Spyware, Adware and Ransom-ware Removal
  • Computer Tune Ups, Hardware Repair, Installations
  • Printer, Scanner, Digital Telephone & Camera Support
  • Point-of-Sale, Inventory & Database Setup & Management
  • Credit Card & Payment Card Industry (PCI) Compliance
  • Surveillance, Monitoring & Tracking System Support
  • Website, Web Store & Web Server Setup & Management
  • Image Processing & Graphic Design
  • Video Processing, Editing, & Post Production

Our Advantages

On-Site & Remote
7 Days a Week
Flexible Hours
Hourly & Flat Rate

Apple Computers & Mobiles
IT-SD specializes in providing support for all Apple computer and mobile products.
Google Android Devices
IT-SD offers support for all smartphone, tablet and mobile devices running Google Android.
Peripheral Devices
Printers, scanners, cameras, telephones, monitors, projectors...IT-SD can help you setup and use just about any peripheral device.
Security, Monitoring & Tracking
From security cameras and GPS tracking to computer monitoring systems, IT-SD has everything needed to help you stay protected and secure.
Networks / Servers
IT-SD has the knowledge and skills needed to keep your home and office connected. Let us setup and maintain your network infrastructure.
Microsoft Windows Computers
IT-SD works on all desktop and laptop PC computers running Microsoft Windows.

Information Technology & Software Design

On-Site & Remote Technical Consulting & Support Service Provider


No Fix – No Fee Guarantee

If we can’t fix your device, you don’t owe us a penny!

We here at IT-SD are skilled in dealing with all types of problems and devices, whether for home or work. However, if we can’t solve your problem, setup or repair your system, network or device, you don’t owe us anything. That’s our promise to you.

Honesty and Transparency

We promise to always deliver world class customer service.

Everybody at IT-SD strives to be as honest, fair and transparent as possible. Customer satisfaction is our number one goal.

About the Owner

Cory Marqusee, Owner / Founder

After graduating from the University of California, San Diego with a Bachelor of Science degree in Electrical Engineering in 2002, and with a passion for helping people combined with a genuine enjoyment working with computers and electronics, Cory Marqusee founded Information Technology & Software Design. Now based in Los Angeles, CA, IT-SD continues to stay on the forefront of technology and offer its clients the best solutions available on the market.

Get Help Now


with your Apple, Windows, Mac, PC, Android or Other Technology Inquiry

Request a Free Estimate or Schedule an Appointment


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