Introvac Corp manufactures home vacuum sealers designed for food preservation, freezer storage, and sous-vide cooking. Their vacuum sealing machines help extend shelf life, reduce food waste, and keep food fresh for longer periods.

Promarksvac Corp is a U.S. manufacturer of chamber vacuum sealers and industrial food packaging equipment. The company provides vacuum packaging machines, heat sealing systems, and meat processing equipment designed to improve product freshness, extend shelf life, and enhance efficiency for commercial food production and packaging businesses.