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Iseli Company 

402 North Main St, Walworth, Wisconsin, 53184, United States


HistoryFounded in 1946 in Terryville, Connecticut, Iseli Company is the leading supplier of Swiss screw machine products in the country. In conjunction with our Walworth, Wisconsin facility, which has been in operation since 1952, Iseli operates over 350 screw machines in 190,000 square feet of space, and provides the precision machining expertise, technology and workmanship to meet your precision component requirements.CapabilitiesWhile both Iseli facilities built their operations and reputations as traditional Swiss screw machine shops, continued investment in new technology and equipment has enhanced and increased our precision machining capabilities. Multi-axis CNC Swiss lathes, computer-based “real time” SPC systems, CNC turning centers and Computer Aided Design (CAD) technology for tooling and process development, all supplement and increase the traditional Swiss screw machining capabilities that we offer our customers.Continuous ImprovementAt Iseli Company, we recognize that the key to our continued success is to assist our customers in their efforts to succeed in a competitive marketplace. Our focus on utilizing “lean manufacturing” tools and principles to drive continuous improvement in our quality, delivery, safety and cost competitiveness is what will best support this initiative. Both our Connecticut and Wisconsin facilities are ISO 9001:2000 registered.QualityIseli Company is dedicated to providing our internal and external customers with products and services that fully satisfy their requirements. Quality is the most important element of our business, and continuous improvement is the job of every employee.Value EngineeringUtilizing the expertise that has been developed in over a half-century of precision machining, we provide “value engineering” services to our customers, providing input and assistance in part design to lower costs and/or improve quality performance. Our experienced engineering team is available to support your needs.Delivery & ServiceIn today’s world of reduced lead times, and date-critical programs, Iseli provides the unrivaled capacity and capability to provide your precision components in a timely manner, and to meet committed delivery schedules.

Manufacturing Capabilities

Company Details



MFG Member Since



United States


ISO 9001:2000



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