Trystar is a Minnesota manufacturer known for solving difficult power challenges through in-house engineering and fabrication. Its customizable power systems support organizations that need dependable electricity in settings ranging from critical facilities to emergency response, with a small-company customer focus despite its growth. Trystar has broadened that work by acquiring Load Banks Direct and its load-bank manufacturing expertise.
UL 50 Listed
UL 1640 Listed
C-ETL/ETL 1640 Listed
RoHS Compliance
Compliance program
T-Star EngineeringDeveloped from proprietary SVC technology first created in the early 1990s, T-Star Engineering designs and builds dynamic reactive-power compensation systems for industrial and utility power networks. The Southwest Pennsylvania manufacturer makes its own medium-voltage thyristor switches and high-speed controls, then supports installations through commissioning and secure remote monitoring. More than 150 uniquely specified systems have been installed, including mobile units that can be disconnected and redeployed in less than a day.GREENSBURG, PA
Avtron Power SolutionsAvtron traces its roots to 1947 and began manufacturing load banks in 1955, building a long-running identity around testing critical power systems. Today, the company serves customers worldwide from manufacturing operations in Cleveland and the United Kingdom, with field support and training for the equipment used in demanding facilities.CLEVELAND, OH
Custom Power SystemLaunched in 1985, Custom Power System is a U.S.-based manufacturer built around engineering and manufacturing solutions for defense and commercial customers. Operating from a 15,000-square-foot New York State facility under ITAR compliance, it serves organizations ranging from small established companies to large conglomerates and government agencies.SAYVILLE, NY
IEM (Industrial Electric Mfg.)IEM grew from a barn on a family ranch in Fremont, California, alongside the rise of Silicon Valley, and has spent more than 75 years building a reputation for solving difficult power-distribution challenges. Today, the company designs and manufactures custom electrical systems for critical environments, with more than 1.5 million square feet of manufacturing capacity supporting projects across North America. Its history includes pioneering CAD/CAM for electrical-equipment fabrication and developing specialized switchgear for demanding applications.DUBLIN, OH