GRAYHILL Tech Stack

Custom human-interface components for medical, military, and industrial equipment

Manufacturing La Grange, IL 501–1,000 employees Founded 1943 Privately Held

GRAYHILL manufactures operator interface components—encoders, switches, keypads, joysticks—primarily for medical devices, military systems, and off-highway vehicles. The stack (C/C++, ARM Cortex-M, STM32, I2C, UART, Bluetooth Low Energy, RTOS) and project mix (NPI, military solutions, tooling) reflect a hardware-first, embedded-systems-heavy operation. Current pain points center on production efficiency: timely delivery, scrap reduction, quality throughput, and audit rejects—typical of a manufacturing business scaling custom orders.

Tech Stack 13 technologies

Core StackSAP C/C++ ARM Cortex-M STM32 PIC I2C UART USB Bluetooth Low Energy RTOS Oscilloscope JTAG PTC Creo

What GRAYHILL Is Building

◆Challenges

Reducing expenses
Timely delivery of parts
Scrap reduction opportunities
Productivity improvement
Minimizing downtime
Maintaining quality throughput
Reducing production audit rejects
Budgetary constraints on product development
Expanding into new markets

▲Active Projects

Npi project
Transfer project
Tooling or mold-making projects
Military solutions group product development
Identifying new business opportunities

Hiring Activity

Steady15 roles · 6 in 30d

Department

Manufacturing

Engineering

Marketing

Procurement

Sales

Seniority

Mid

Junior

Senior

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About GRAYHILL

GRAYHILL designs and manufactures interface components and integrated panel solutions, serving regulated markets where user ergonomics and haptic feedback directly affect device safety and usability. The company offers both off-the-shelf products (optical encoders, rotary switches, CANbus-enabled keypads and joysticks) and custom-engineered solutions, often incorporating wireless communications and displays. Based in La Grange, Illinois, with multiple manufacturing facilities globally, GRAYHILL combines component design with contract manufacturing—delivering both standard SKUs and fully integrated operator interface panels for OEMs in medical, defense, and agricultural equipment sectors.

HeadquartersLa Grange, IL

Company Size501–1,000 employees

Founded1943

Hiring MarketsUnited States

Frequently Asked Questions

What technology does GRAYHILL use in its products?

GRAYHILL designs around ARM Cortex-M and STM32 microcontrollers, using C/C++, RTOS, I2C, UART, USB, and Bluetooth Low Energy for wireless capability. CANbus integration is standard in keypads and joysticks.

Is GRAYHILL hiring for manufacturing or engineering?

Yes. Active roles span manufacturing, engineering, and supporting functions. Hiring is primarily US-based with a steady pace of new positions.

Where is GRAYHILL headquartered?

GRAYHILL is headquartered in La Grange, Illinois, with multiple state-of-the-art manufacturing facilities worldwide.