PAC International, LLC. is a leading manufacturer of acoustical noise control solutions, dedicated to improving building performance through innovative sound isolation products and professional education. For more than 30 years, PAC has partnered with architects, engineers, acoustical consultants, and contractors to develop tested solutions that reduce airborne and structure-borne noise in residential, multifamily, healthcare, hospitality, education, and commercial buildings.

As the inventor of the RSIC®-1 Resilient Sound Isolation Clip, PAC is committed to advancing industry knowledge through accredited continuing education courses. Its CEU programs provide practical guidance on acoustical design, building codes, tested assemblies, and installation best practices, equipping design professionals with the tools to create quieter, more comfortable, and code-compliant buildings.