Seiler Instrument & Manufacturing Company, Inc.

Seiler Instrument & Manufacturing Co., Inc. is a family-owned, fourth-generation precision manufacturing and optical instrument company founded in 1945 with headquarters in Saint Louis, Missouri. The company operates through six divisions, with the Medical Division specializing in high-precision optical microscopy systems for healthcare applications. Seiler Medical offers a comprehensive portfolio of surgical microscopes including dental surgical microscopes for general dentistry and endodontics, 3D surgical microscopes, colposcopes for gynecological examination, ENT microscopes, compound microscopes, and surgical loupes. The company leverages over 75 years of optical design and manufacturing expertise to serve dentistry, otolaryngology, gynecology, and general surgical specialties. Seiler functions as both a manufacturer and authorized distributor of advanced optical and precision medical equipment. Beyond medical devices, Seiler Precision Manufacturing provides full-service contract manufacturing including 5-axis CNC machining, precision turning, complex mechanical and electro-mechanical assemblies, and optical system integration primarily serving defense and aerospace sectors. The company maintains capabilities in prototype development through full-scale production of medium to high-complexity components. Seiler's additional divisions include Geospatial (surveying and construction equipment distribution), GeoDrones (unmanned aerial systems), Planetarium (ZEISS planetarium systems distribution), and Design Solutions (Autodesk AEC software reseller). The company has received recognition from major defense contractors including a Gold 'Partner2Win' Medallion from BAE Systems for supply chain excellence and operational performance.