![]() Unicircuit Unicircuit is a company that manufactures printed circuit boards for mission-critical, high-reliability, and time-sensitive products. | ![]() Lone Star Circuits Lone Star Circuits (LSC, also known as Best Circuit Boards) is a provider of close-tolerance CNC machining and rigid printed circuit boards services. | Sierra Circuits Sierra Circuits (also known as Sierra Proto Express) is a company that manufactures and assembles printed circuit boards. | |
Founding Date | Founding Date 1979 | Founding Date 1986 | Founding Date 1986 |
Type | Type Subsidiary | Type Private | Type Private |
Tags | |||
Locations | Locations Littleton, US HQ Littleton, US Littleton, US Santa Ana, US St. Louis, US | Locations Wylie, US HQ | Locations Sunnyvale, US HQ Delta, CA |
Employees | Employees 213 | Employees 17 | Employees 478 |
Operating ⚠ | |||
Industries Served | Industries Served N/A | Industries Served 7 (Aug, 2023) | Industries Served 8 (Jun, 2024) |

Lone Star Circuits (LSC, also known as Best Circuit Boards) is a provider of close-tolerance CNC machining and rigid printed circuit boards services.
View companySierra Circuits (also known as Sierra Proto Express) is a company that manufactures and assembles printed circuit boards.
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