Accurate Surgical & Scientific Instruments Corporation (ASSI) is a U.S.-based manufacturer and supplier of surgical instruments, founded in 1983 and headquartered in Westbury, New York. The company operates manufacturing and distribution facilities on both coasts of the U.S. ASSI specializes in a wide range of surgical instruments for various medical fields, including microsurgery, hand surgery, plastic and reconstructive surgery, ophthalmology, neurosurgery, urology, infertility, ENT, and vascular surgery.

ASSI focuses on the design, manufacture, and marketing of precision surgical instruments and related care products. Their offerings include bipolar and monopolar forceps, scissors, needle holders, retractors, microvascular clamps, electrosurgical instruments, and specialty microsurgical equipment. The company emphasizes quality materials such as stainless steel and titanium, along with strong customer service. ASSI primarily serves hospitals, surgical centers, and medical professionals through a B2B model.