Manufacturing The Finest Signaling Products Since 1895.

William, John, and Otto Kahlenberg 1907

Established in 1895 as Kahlenberg Brothers Company, Kahlenberg Industries, Inc. is a leading manufacturer of sound signaling products, primarily consisting of pneumatic air and electric horns for marine, industrial, and mass notification use. Customers include the largest navies of the world as well as hundreds of O.E.M. manufacturers in the Shipbuilding, Construction, Mining, Construction Equipment, Mass Transportation, and Safety and Security industries. We excel at designing and manufacturing sound signaling equipment of unmatched reliability, specifically suited for the purposes required by our customers.


An ISO 9001-2015 certified corporation located in Two Rivers, Wisconsin, Kahlenberg Industries facility includes a certified fully anechoic sound test chamber with test equipment capable of finite frequency analysis and sound pressure level testing to over 150 decibels. Marine sound signaling equipment is tested to IMO, USCG, and special customer requirements, and certified by ABS, ABYC, NMMA, British MCA, Canadian DOT, RINA, and other national authorities and classification societies. We employ a skilled and dedicated workforce, with the average employee being with the company for over 11 years. The production facility currently occupies over 45,000 square feet of production space.

In 2007, Kahlenberg purchased the marine and industrial divisions of Airchime Ltd., formerly of Langley, British Columbia, Canada. Products previously manufactured by Airchime in Canada are now produced in our facility in the United States.

The U.S. Navy specifies Kahlenberg electric piston horns for aircraft carriers. We have built programmable musical air horns for superyachts that play the owner’s favorite songs at 140 decibels, at the touch of a button. Oil refineries in the deserts of the Middle East use our horns for evacuation alarms. For sports fans, the chances are good that if your hockey or football team celebrates each goal with a blast from a horn at the top of the arena, it is likely a Kahlenberg.


Erick and Steve Kahlenberg 2015


Having been in business continuously for over 120 years, our culture has always been to exceed customer expectations with regard to product quality and customer service.   We are not content unless we continuously improve.  Currently over 99% of our customers tell us they would recommend us to others based on their experience with our products and our staff.

All Kahlenberg products are manufactured in Two Rivers, Wisconsin, U.S.A. and are exported to over 30 countries through a global network of sales offices and distributors.

For Kahlenberg Propellers, see
For Kahlenberg Manufacturing, see