Choosing a generator is only part of building a reliable power system. To ensure stable and uninterrupted power supply, it is equally important to select compatible components such as an automatic transfer switch ( also know as ATS, dual power switch, generator switch), and other protection and control devices.
A well-designed system that integrates a high-quality automatic transfer switch can automatically switch between utility power and generator power, ensuring seamless operation during outages.
Below is a curated list of leading generator manufacturers in 2025, along with insights into their strengths and typical application scenarios.
(Note: Brands are listed in alphabetical order.)
Country: Multinational (UK, China, Hong Kong, USA)
AGG provides a wide range of power solutions, including diesel and alternative fuel generator sets, natural gas generators, DC generators, lighting towers, and paralleling control systems.
Country: Turkey
AKSA manufactures gasoline, diesel, natural gas, and marine generator sets ranging from 1 kVA to 3000 kVA.
Country: Turkey
Founded in 2012, ARKEN Generator specializes in high-performance energy solutions. Their portfolio includes diesel, gas, petrol, and solar generators, as well as lighting towers.
ARKEN solutions are widely used in projects requiring reliable backup power with ATS (automatic transfer switch) integration.
Country: Sweden
Atlas Copco focuses on industrial generator sets designed for continuous operation in harsh environments such as construction and mining.
Their systems are typically used alongside robust transfer switches systems to ensure uninterrupted power supply in critical operations.
Country: United States
Cummins is one of the most recognized global brands in power generation, offering both diesel and natural gas generators.
Their solutions are widely used in industrial, commercial, and residential backup systems, and are often combined with automatic transfer switches for seamless power transition.
Country: United Kingdom
FG Wilson supplies diesel generator sets across a broad power range for standby and prime power applications.
Country: Spain
Himoinsa is a global manufacturer of power technology solutions, including diesel and gas generators, hybrid systems, and lighting towers.
As part of the Yanmar Group, Himoinsa products are widely used in over 80 countries.
Country: Japan
Honda is well known for compact inverter generators that provide clean and stable power.
These units are ideal for residential and mobile applications.
Country: Turkey
KJ Power offers a wide range of diesel generator solutions for industrial and commercial use.
Their systems are typically deployed with automatic transfer switches, ensuring reliable backup power and smooth switching between power sources.
Selecting the right generator is only one part of building a dependable power system.
A high-quality automatic transfer switch (ATS) or dual power switch plays a critical role by:
Automatically transferring power between utility and generator
Reducing downtime during outages
Protecting electrical equipment
Improving system safety and efficiency
There are different types of transfer switches (ATS) to consider:
PC Class ATS (high reliability, no interruption)
AC-33A ATS (suitable for frequent operation)
Solenoid type ATS (fast switching)
Motorized ATS (cost-effective and widely used)
Additionally, integrating an advanced ATS controller ensures precise monitoring and control of the entire power system.
Building a reliable power solution requires more than just choosing a top generator brand.
To achieve seamless and efficient operation, it is essential to integrate a high-quality automatic transfer switch into your setup.
By combining the right generator with a well-matched ATS, you can significantly improve power reliability, safety, and overall system performance.
