What SANLUIS Rassini makes

SANLUIS Rassini International is the US arm of Rassini, a vertically integrated designer and manufacturer of automotive suspension and brake components for light and commercial vehicles. The company describes itself as the largest producer of light-vehicle suspension components in the world and the largest vertically integrated maker of disc brakes in the Americas, supplying more than six million vehicles a year across two business divisions, seven manufacturing sites, and six technology centers.

The suspension line covers multi-leaf and parabolic leaf springs, coil springs, hybrid steel-composite leaf springs engineered for lightweighting, and anti-vibration products such as elastomers and bushings. The brake line covers ventilated, perforated, solid, and slotted brake discs along with rotors and finished assemblies, produced through an in-house machining and assembly process. As an OEM supplier and a Tier 1 to major automakers, Rassini emphasizes energy efficiency, noise reduction, and mass reduction across both product families, and runs an aftermarket catalogue that mirrors original-equipment materials and specifications.

The group's US presence runs through two Michigan sites: Rassini International in Plymouth, the commercial and engineering base named in the company's own contact directory, and a Rassini Brakes operation in Flint. Manufacturing is concentrated in Mexico (Piedras Negras, Xalostoc, San Martin Texmelucan, and San Juan del Rio) and Brazil (through the Rassini NHK Automotive joint venture near Sao Paulo and Rio de Janeiro).

Ownership and history

Rassini was founded in 1979, when an investor group led by Antonio Madero Bracho took control of a suspension business whose predecessor operations trace to the 1920s. The group operated for years as SANLUIS Corporacion, S.A.B. de C.V., a publicly listed issuer on the Mexican Stock Exchange, and rebranded to Rassini in November 2014. In 2020 the company delisted from the Mexican Stock Exchange and returned to private ownership under the same controlling group. Because it is now private, Rassini does not publish standalone financial statements; the last widely reported figure, roughly one billion dollars in trailing-twelve-month revenue, dates to mid-2019, its final period as a listed issuer.

The SANLUIS Rassini International, Inc. entity sits at 14500 Beck Road in Plymouth, Michigan, and serves as the US commercial and engineering face of the group. Group headquarters remain in Mexico City.

Certifications and quality

Rassini states that it maintains state-of-the-art technology and automated processes across all of its facilities, and it holds IATF 16949, the automotive quality-management standard, which it reports having maintained since 2018. The company has carried the Socially Responsible Enterprise (ESR) distinction in Mexico since 2013. Its quality record has drawn repeat recognition from customers: a 2013 General Motors Supplier of the Year award, a GM Overdrive Award, a Volvo Quality Excellence award, and an Altair Enlighten Award for product lightweighting. These recognitions are the company's own claims as displayed on its site and in customer announcements.

Known customers

Rassini says it supplies the world's largest vehicle manufacturers. The relationships that meet a documented or reported evidence bar:

Beyond these, the company serves additional automakers it does not publicly name, which is normal for a suspension and brake supplier working across multiple OEM programs.

Sourcing evidence

Rassini's US import record runs through the Beech Bottom, West Virginia importer entity and shows 661 sea shipments since January 2015, with the most recent on September 24, 2026. The inbound mix is exactly what a vertically integrated suspension maker would draw in: rubber-metal anti-vibration components and bushings, spring steel, and composite leaf-spring inputs feeding assembly in North America. Bills of lading name a European and Indian supply base for the anti-vibration content, with spring-steel and composite-spring inputs from Germany.

Seven suppliers shown; the entity imports under multiple names and addresses. By tariff classification, the mix leads with other motor-vehicle parts (HTS 8708.99, rubber-metal and anti-vibration parts), other vulcanized-rubber articles (4016.99), and suspension systems and parts (8708.80). US customs-derived estimates put cumulative ocean shipping spend near one million dollars since 2015, with cost data covering about 59 percent of shipments, an order-of-magnitude figure rather than an audited one. Shipment activity slowed sharply in the most recent window, down roughly 69 percent year over year, consistent with the September 2025 suspension of the company's leaf-spring division in Coahuila. Buyers weighing nearshoring will note the heavily North American manufacturing footprint that anchors this inbound content.

Coverage caveats: these are US ocean-freight records only. Air, truck, and rail movements, including most cross-border US-Mexico flows, do not appear; some records name freight intermediaries rather than manufacturers; and product categories come from declared manifest codes, which are noisy. Absence of a record is not evidence of absence.

Frequently asked questions

What does SANLUIS Rassini make?

SANLUIS Rassini makes automotive suspension and brake components for light and commercial vehicles: multi-leaf and parabolic leaf springs, coil springs, hybrid steel-composite leaf springs, anti-vibration elastomers and bushings, and ventilated, perforated, solid, and slotted brake discs, rotors, and assemblies. It describes itself as the world's largest producer of light-vehicle suspension components.

Who owns SANLUIS Rassini?

Rassini is privately held. Formerly SANLUIS Corporacion, S.A.B. de C.V., it was a publicly listed issuer on the Mexican Stock Exchange before delisting and returning to private ownership in 2020. It has been controlled since 1979 by an investor group led by Antonio Madero Bracho.

Where is SANLUIS Rassini headquartered?

Rassini's group headquarters are in Mexico City. Its US entity, SANLUIS Rassini International, Inc., is based at 14500 Beck Road, Plymouth, Michigan, with a Rassini Brakes operation in Flint, Michigan. Manufacturing is concentrated in Mexico and Brazil.

Who are SANLUIS Rassini's customers?

Rassini supplies major global automakers. The documented relationship is General Motors: the company was a 2013 GM Supplier of the Year winner and supplied suspension components and rotors on the 2014 Chevrolet Silverado and GMC Sierra. It has also received a Volvo Quality Excellence award.

What is SANLUIS Rassini's revenue?

Rassini does not publish standalone financials as a private company. The last widely reported figure was roughly one billion dollars in trailing-twelve-month revenue as of mid-2019, its final period as a listed issuer. More recent point estimates from data brokers are modeled rather than reported.

What certifications does SANLUIS Rassini hold?

Rassini holds IATF 16949, the automotive quality-management standard, which it reports having maintained since 2018. It has also carried Mexico's Socially Responsible Enterprise (ESR) distinction since 2013 and has won quality awards from General Motors and Volvo.

Last verified September 28, 2026. Is this your company? Request a correction.