Welcome to Test X LLC
Built on Integrity

What we can do for you....

Infrastructure Cabling System


Let us help you determine your requirements for your new building or office cabling infrastructure with a consultation to determine your business needs. Our staff has more than  quarter century of industry experience and no job is too small or too big.

PBX/VoIP Phone Systems


Let us help you decide if a VOIP or PBX phone system is right for your business.  We can assist you with the selection and deployment of either solution in an efficient and cost effective manner with little disruptions to your operations.

Sound Masking Systems


Sound masking systems are precisely tuned to the frequency of human speech, so it can effectively mask human speech. Often misunderstood as white noise, sound masking is at a more comfortable frequency range.

Network Cabling Certifications


Our cabling certification and testing services utilize industry leading Fluke instruments to ensure your system is working properly.   We ensure that the cabling complies with all standards. 

Open a Work Order

Work Order Request

Need help moving, changes or a new installation?  Let us help you by using our online workorder system

Our Family of Companies


About Us

Test X LLC

Contact Us

Better yet, see us in person!

We love our customers, so feel free to setup a visit during our normal business hours.

Built on Integrity

7650 Standish Place, Derwood, Maryland 20855, United States

(301) 921-9056