Founded in 1965, MacPherson & Company designs and manufactures custom industrial safety window systems for heavy-industry settings, including protection from extreme heat and impact. The company’s focus grew from protecting steelworkers, with Bruce MacPherson developing the HOOGOVENS™ impact-resistant glass brand and Engineered Window Systems in 1969. Now led by CEO Jane MacPherson, the family company continues that safety-glass legacy from its Warren, Ohio operation and serves industrial and military applications with systems engineered for demanding environments.
Women’s Business Enterprise Certification
UL 752 Level 5
Compliance program
Optimum Window MFG CorpFounded in 1985 as a family-owned business in Ellenville, New York, Optimum Window MFG Corp. manufactures custom steel windows and doors and describes itself as one of the largest and most diversified U.S. manufacturers of fire-rated and architectural steel windows. It makes products in-house at its Upstate New York facility, combining decades of fenestration experience with custom fabrication for residential, commercial, institutional, historic, governmental, and correctional projects.ELLENVILLE, NY
Custom Glass Solutions, LLCFrom its Upper Sandusky, Ohio headquarters, Custom Glass Solutions manufactures large-format laminated glass systems and windshields for vehicles and mobile equipment. The company has fabricated windshields in Ohio since 1974 and now operates facilities in Ohio and Oklahoma, employing hundreds of people across North America. CGS is particularly distinctive for its Optishield Tactical transparent armor, including rifle-rated glass for patrol vehicles and ballistic barriers designed with transit authorities to protect bus operators.WORTHINGTON, OH
Hope’s Windows, IncFounded in Jamestown, New York, in 1912, Hope’s Windows handcrafts custom steel and bronze windows and doors for demanding architectural projects. Its products are built in the United States by more than 230 employees across four manufacturing plants, with a dedicated testing and research facility on the Jamestown campus. Hope’s is especially known for historically accurate renovations, including its 1,700-window retrofit at Pearl Harbor Naval Shipyard, while its independently tested systems also address modern performance and safety requirements.URBANA, OH
IsoclimaFounded in Este, Italy, in 1977, Isoclima designs and manufactures customized transparent glazing for demanding security, architectural and transportation applications. The company became Europe’s first manufacturer of bullet-resistant glass combining glass and polycarbonate in 1980, and today its specialty glazing is produced through an international network that includes U.S. facilities in Pennsylvania and Alabama. Isoclima’s management systems and manufacturing work are certified to standards including ISO 9001, ISO 14001, IRIS and AS 9100D.BLAIRSVILLE, PA