Macha International is one of the leaders in the seismic equipment industry and was founded by William J. Macha and Ann C. Guggenbuehler in 1979. Macha designs and manufactures seismic source control instrumentation and test equipment. The company s products are the result of more than 20 years of collaboration with geophysical contractors and major oil companies throughout the world. Macha is based is Houston, yet markets products throughout the world. The company s staff includes more than 30 people including engineering, administrative and manufacturing professionals. Macha is divided functionally into six departments: engineering, manufacturing, finance and administration, rental and repair, information systems and sales and marketing.