Jaco Enterprises - Offers a neoprene ear cover as well as moldable plugs to help prevent swimmers ear. - http://www.earbandit.com/
Silencio/Safety Direct, Inc. - Silencio and Rig products featuring hearing protection and safety glasses. - http://www.silencio.com/
EarPlugsOnline.com - Offers NRR 34 rated reusable ear plugs that block out water as well as sound. - http://www.earplugsonline.com
Electronic Shooters Protection - Provides custom, in-the-ear hearing protection for shooters, instructors, hunters, and outdoorsmen. Permits hearing the safe range of sounds but not damaging noise. - http://espamerica.com
Hearos - Ear filters and guards for noise, water and wind protection. - http://www.hearos.com
E.A.R. Inc. - Presents a broad line of hearing protection products including a range of passive and active ear plugs. - http://www.earinc.com/
Industrial Health - Industrial Health provides OSHA audiometry (hearing testing), respirator clearance evaluation, and respirator fit testing (US). - http://www.indhealth.com