Dia Systems, LLC

Apr 2023

I love working with Tessie. She is extremely reliable, sharp and really on top of all of my IT needs. I wouldn't be able to operate smoothly without her. Her team puts my mind at ease.

Nov 2021

Dia Systems reminds me of how the systems and desktop support desk use to be back in the day, Smart, friendly service without the hassle. Being a General Contractor in the Los Angeles area you need that type of hands on support that keeps us competitive with the ever changing world of Information Technology. We never worry about any email issues or having our devices running the way it should. I highly recommend Dia Systems for your software needs.

Oct 2018

My law firm, based in San Francisco, California, retained Dia Systems in early August 2018 as our remote IT service provider. This company has exceeded all my expectations. Dia Systems is very responsive to all of my team's IT support requests and always sees them through to resolution. It is also exceptionally well-managed--something I definitely appreciate as the owner of my own small business. I would give this business ten stars if I could. Highly recommended!