CST/berger is the worlds leading manufacturer of quality surveying, construction equipment and supplies. Vertically integrated with more than 300 employees in five plants worldwide, CST/berger offers you a diverse range......CST/berger is the worlds leading manufacturer of quality surveying, construction equipment and supplies. Vertically integrated with more than 300 employees in five plants worldwide, CST/berger offers you a diverse range of more than 1,000 products, all manufactured and marketed to provide the highest quality at the most competitive prices possible. Founded in 1903, Chicago Steel Tape (today known as CST/berger) began as a manufacturer of steel measuring tapes. A pioneer in providing surveyors with innovative, quality instruments at competive prices. Now as a result of over 100 years of manuafacturing experience, global marketing strategies, state-of-the art technologies, and the addition of products for the building and construction markets, CST/berger has become USAs largest, and one of the worlds leading, vertically integrated manufactures of surveying accessories, as well as building and construction instruments.