HTT was initially established in 1993. On 2012, the electrical meter services were established and they were operating as single independent company. Our expansion has allowed us the luxury of remaining a service-oriented company and the ability to remain unbiased in our recommendations to our clients. We sell no products. Our only commodity is service. We provide complete verification, inspection and calibration services for electric energy instruments as well as calibration services for other instruments used for measuring electrical quantities.