What FIAMM Technologies makes

FIAMM Technologies LLC is the North American arm of the FIAMM horn and acoustic-device business, the automotive-components operation that trades under the FIAMM Sound & Connectivity brand and joined the HORIEN Group in August 2024. Its core product is the vehicle horn: disc horns, trumpet and snail horns, and electropneumatic units for cars, light commercial vehicles, and heavy-duty trucks, supplied to both original equipment programs and the aftermarket. The company's own catalog describes FIAMM as the leading global supplier of horns, producing more than 40 million horns a year across five plants on four continents.

Beyond the traditional horn, FIAMM has built out the electric-vehicle side of sound. It develops AVAS and HAVAS units, the Acoustic Vehicle Alerting Systems that regulators now require on hybrids and battery-electric vehicles to warn pedestrians at low speed, and it states it is the only traditional horn manufacturer to also offer integrated AVAS and HAVAS systems. That work extends into vehicle sound branding, homologation support for external sound, and connectivity products such as antennas and connectors. For a Tier 1 or Tier 2 buyer, the practical read is a single supplier that can carry a horn program from the internal-combustion era into the AVAS mandate without switching vendors.

The US entity operates from Cadillac, Michigan, with a second Detroit-area address in Farmington Hills, and it distributes both the acoustic product line and, historically, FIAMM-brand batteries into the North American market. Its customs record reflects that dual role, with horn and sound-signaling shipments arriving alongside FIAMM-brand battery freight.

Ownership and history

The FIAMM name goes back to 1938, when Elettra Spa was founded in Italy, and to 1942, when Giulio Dolcetta acquired it and gave it the name FIAMM, Fabbrica Italiana Accumulatori Motocarri Montecchio. The horn and acoustic business remained under the Dolcetta family lineage and today sits inside the HORIEN Group, which took on FIAMM Sound & Connectivity on August 7, 2024. The US subsidiary's corporate record lists Elettra 1938 S.p.A. of Montecchio Maggiore, Vicenza, as the group parent.

It is worth separating two businesses that share the FIAMM brand. The battery operation, FIAMM Energy Technology, is a distinct company tied to the Resonac group and reports its own turnover and headcount. FIAMM Technologies LLC belongs to the acoustic-components side, the horn and AVAS business now under HORIEN. This profile covers the acoustic-components entity, the one that MEMA counts among its OE members. The US LLC does not publish standalone revenue or headcount, so those figures are left out rather than estimated.

Certifications and quality

FIAMM publishes site-level quality and environmental certificates for its Cadillac operation, listed on the HORIEN compliance page as an IATF 16949 certificate, an ISO 9001 certificate, and an ISO 14001 environmental-management certificate. IATF 16949 is the automotive quality-management standard that OE customers treat as table stakes, and FIAMM describes running the same testing regime across its aftermarket and OE products. As with any self-posted certificate, these are the company's own published claims; certificate dates are not shown on the index page. The company also describes APQP-style development discipline consistent with serving vehicle programs, and its Brazilian site additionally lists ISO 45001 for occupational health and safety.

Known customers

FIAMM's horn business names a broad OE customer base in its own catalog, and one North American relationship is independently visible in the customs record.

The catalog lists many more programs worldwide, from Fiat, Renault, and Volkswagen in Europe to Hyundai, Kia, and Toyota in Asia. On-page here, only the US OE names and the independently corroborated Ford relationship are shown.

Sourcing evidence

FIAMM Technologies' US import record reads like an OE components importer running an intercompany supply chain: 2,007 sea shipments since January 2015, with the most recent logged September 19, 2026, at an average of roughly 47 TEU per month. The mix is genuinely dual. Horn and sound-signaling freight arrives under HS heading 8512.30, with bill-of-lading text naming "Disc Horn," brackets, and horn components, while FIAMM-brand lead-acid batteries arrive under HS 8507. That pattern matches a North American distribution and assembly arm pulling finished and semi-finished product from the group's plants.

Seven shown of the recorded supplier set. By origin, Europe accounts for about 60 percent of shipments, led by Italy at 1,149 (the intercompany lanes from the FIAMM plants), with China at 417, Taiwan at 158, India at 82, and Brazil at 77. Several suppliers, Fiamm, Fiamm Enertech, and Fiamm Autotech, are FIAMM-brand affiliates, so much of this volume is intercompany rather than arm's-length purchasing. Customs-derived estimates put cumulative ocean shipping spend near $3.9M, with cost data covering about 61 percent of shipments, an order-of-magnitude figure rather than an audited one.

Coverage caveats: these are US ocean-freight records only. Air, truck, and rail movements do not appear; some records name freight intermediaries rather than manufacturers; product categories come from declared manifest codes, which are noisy; and the entity imports under many name and address variants. Absence of a record is not evidence of absence.

Frequently asked questions

What does FIAMM Technologies make?

FIAMM Technologies makes automotive horns and acoustic devices, including disc, trumpet, and electropneumatic horns for cars, light commercial vehicles, and heavy trucks. It also develops AVAS and HAVAS acoustic vehicle alerting systems for electric and hybrid vehicles, plus connectivity products such as antennas and connectors. The FIAMM horn business reports producing more than 40 million horns a year.

Who owns FIAMM Technologies?

FIAMM Technologies LLC is the US subsidiary of the FIAMM Sound & Connectivity acoustic-components business, which became part of the HORIEN Group in August 2024. Its group parent of record is Elettra 1938 S.p.A. of Montecchio Maggiore, Italy. The FIAMM brand traces to 1942 and the Dolcetta family. It is a separate business from FIAMM Energy Technology, the FIAMM-brand battery company.

Where is FIAMM Technologies located?

FIAMM Technologies LLC operates from 1550 Leeson Ave., Cadillac, Michigan 49601, with a second Detroit-area address at 23880 Industrial Park Dr., Farmington Hills, Michigan. The broader FIAMM horn business runs five production plants across four continents.

Who are FIAMM Technologies' customers?

FIAMM's own OE catalog lists US customers including General Motors, Ford, Chrysler, Nissan, BMW, Kia, Mazda, Mitsubishi, Freightliner, Volvo/Mack, PACCAR, and Caterpillar. A Ford relationship, including Polaris program parts, is independently visible in US customs records through horn bills of lading.

What certifications does FIAMM Technologies hold?

FIAMM publishes IATF 16949, ISO 9001, and ISO 14001 certificates for its Cadillac, Michigan site on the HORIEN compliance page. IATF 16949 is the automotive quality-management standard required by OE customers. These are the company's own published certificates; certificate dates are not shown on the index page.

Last verified September 27, 2026. Is this your company? Request a correction.