The following list of firms provide Technical Surveillance Counter-Measures services. These firms are well trained, experienced and have a full compliment of "sweep" equipment. All of these firms have the resources to conduct large scale corporate or government "sweep" operations, office suites, automobiles, aircraft and homes. Please be advised that a TSCM firm will need at least 24 hours notice to respond to your request for "sweep" assistance. Most of the firms listed below will travel outside their region or state. Some of the "recommended" firms can provide other security and investigative services. We urge you to contract with firms that are members of ERI(The Espionage Research Institute), BECCA and ASIS. It is our opinion that members of these associations consistently demonstrate a high level of experience, training, ethics and professionalism.

The firms below have given us permission to list them as TSCM service providers on this website. Please contact us for information on TSCM firms in your area.