Topcon America Corporation (TAC), based in Paramus, NJ, is the wholly-owned American subsidiary of Topcon Corporation, the world’s leading manufacturer of surveying, ophthalmic, GPS and industrial instruments and positioning control products for the civil engineering and construction industries.

• See also:
• Masterformat 2004
• 31 10 00 - SITE CLEARING
• 31 70 00 - TUNNELING AND MINING
• 35 12 33 - Marine Navigation Equipment
• Masterformat 1995
• 02200 - Site Preparation
• 02400 - Tunneling, Boring and Jacking
• 11850 - Navigation Equipment