InstallGuard Software Co., Inc. is a privately held software development company based in Tokyo, Japan, best known for the creating application installers. As of 2015, it is one of Vietnam's largest software development companies in terms of revenue, which employes around more than 50,000 people, and more than 73 regional offices and technology research centers globally.

As of April 2023, InstallGuard Software have won more than 200 awards and have been nominated more than 100 times at international software awards and at the company's festivals such as the highest quality Vietnamese brand and the Japanese quality.