Electrical and electronic design services are performed by companies that design hardware for analog and digital circuits, components, devices, and systems. The hardware's primary purpose can be transmission of energy or transmission of information. To perform this work, companies have skilled electrical, electronic, and similarly-trained engineers on staff.

Example work produced by these companies includes circuit designs, schematics, wiring diagrams, and embedded systems. Electrical and electronic design companies also perform reverse engineering, create prototypes, and run system-level simulations.

Companies that provide computer-aided design (CAD) specialize in the computerized design, three-dimensional (3D) modeling, and printing and drafting of engineering components and assemblies. These electrical and electronic design services use specialized software applications to draw schematics for printed circuit boards (PCB), electronic or mechanical components, and systems for computer aided manufacturing (CAM).

Electrical design and electronic design services perform several steps to design a circuit. First, they review the customer’s requirements and produce a technical report. Next, they draft a schematic or circuit diagram to meet the project’s specifications. After calculating the component values, circuit design services perform simulations to verify the correctness and accuracy of the circuit design. Unless changes are required, a breadboard or other prototype version is then built. Electrical and electronic design services also select parts and materials, recommend a production method, and present their work to the customer. A number of prototypes are tested or type-tested to ensure compliance with the project’s requirements.

Electrical design and electronic design services differ in terms of capabilities. Some companies specialize in the design of microcontrollers and microprocessors. Others provide printed circuit board (PCB) layouts for analog electronics. More frequently, however, electrical and electronic design services design digital electronics and embedded systems; digital signal processing (DSP) equipment; radio electronics and remote controls; and radio frequency (RF) devices. Applications include telephone-based circuit designs, lighting and display circuits, computer hardware, and home or business security systems. PCB layouts for electronic security devices are used in burglar alarms with infrared (IR) or ultrasonic methods for motion detection.

Providers of electrical and electronic design services may meet the requirements of various certifications. These include, but are not limited to the CE Mark (Europe), FCC (US), VCCI (Japan), DENAN (Japan), TUV-GS (Germany), EZU (Czechoslovakia), RLL (Korea), PCBC (Poland), C-TICK (Australia), PSB (Singapore), IRAM (Argentina), NOM (Mexico), SABS (South Africa), GOST (Russia), T Mark (Taiwan), BSMI (Taiwan), CSA, ETL, GS, UL, cUL, S, CB report, CISPIR, IEC, government or (GSA / QQ), MIL-SPEC, ASTM, Telecordia or Bellcore, ISTA, and OEM specific. ). Electrical and electronic design services that meet laboratory testing and materials testing requirements are also available.