GCA has the experience to clean a controlled area before it goes on line as well as provide maintenance for the total environment during operations. In addition, GCA provides the ultimate in cleanroom protocol.

- Cleanroom Manager
Fortune 100 Global Telecommunications Company

As a building maintenance services provider, GCA has been providing janitorial and other building maintenance services for Adobe for over eight years now. The quality of service they provide, their responsiveness to our needs, their follow-through and their integrity are exceptional. They are an integral part of our team and the value they add contributed significantly to Adobe's recent success in being awarded BOMA Building of the Year.

- Adobe Systems

They have a really good management team. They solve problems quick and have the resources to bring in whatever equipment we've needed. For example, we've had floods and they've always cleaned us up quickly. Their owner is a top notch guy. We're pleased with GCA. They've been our provider for over 10 years. When we went out for bid about two years ago we awarded them the contract again.

- Sony Corporation of America

GCA continues to be an excellent partner and a very important contributor to the success of Komag. The account management team communicates effectively and provides excellent support. The entire GCA team is professional and gives great service.

- Komag, Inc.