Founded in 1970 as Westinghouse Instrument Service Co., Pittsburgh’s Wisco Calibration Services calibrates, tests, and repairs precision instruments while also designing and building custom control panels. Now privately held by the Homewood Group, Wisco has retained the management team and staff from its Westinghouse years and supports industrial, defense, energy, and nuclear applications from environmentally controlled laboratories. Its calibration work is conducted under quality systems aligned with ASME NQA-1 and ISO/IEC 17025:2017.
10 CFR 50 Appendix B Quality Assurance Program
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10 CFR Part 21
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ASME NQA-1
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ANSI N45.2
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ISO/IEC 17025:2017
certification
ISO 9001:2015
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IEC 60204-1
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IEC 61439-1/2
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IPC 610
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IPC 620
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NEMA 4, 4X, 12
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UL 508A
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MIL-I-45208A
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MIL-Q-9858A
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MIL-STD-45662A
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NIST 800-171
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Weiss IndustrialFrom its Pittsburgh base, Weiss Industrial helps heavy-industry operators control temperature, power and complex production systems through instrumentation, process controls, power-protection equipment and on-site service. Its distinctive strength is the combination of systems engineering with ISO/IEC 17025-accredited calibration, supporting both new and existing control systems in demanding settings such as metals, power generation and water treatment.PITTSBURGH, PA
Homewood Sales CorporationA former Westinghouse division, Pittsburgh-based Homewood Sales Corporation supplies and supports industrial and power-distribution equipment, making exact-fit replacement parts and units to original Westinghouse specifications. Operating since 1924, the company preserves more than 20 million original records—including 20,000 Westinghouse technical and manufacturing drawings—to extend the life of legacy equipment. Its Pittsburgh laboratories have provided calibration services since 1965, with NIST-traceable work and nuclear quality programs maintained since 1986.PITTSBURGH, PA
WESTport CorporationServing industry worldwide since 1989, WESTport Corporation is a West Islip quality-assurance specialist known for precision measurement support. It supplies manufacturers in fields such as aerospace and automotive with gages and ISO/IEC 17025-accredited calibration, including onsite service that can reduce equipment downtime.WEST ISLIP, NY
Hoover Instrument Service, IncIncorporated in Ohio in 1947, family-owned Hoover Instrument Service supplies motor controls and industrial components while building custom control panels for pump, water and wastewater applications. The Mansfield company is also a UL508A-certified panel fabricator and operates a repair, calibration and certification lab for handheld test and measurement equipment. It has remained at its current Mansfield location since 1968 and carries Military Cage Code 21032.MANSFIELD, OH