What Gentex makes

Gentex is an electronics manufacturer built around one dominant product line and a widening set of adjacencies. Its core business is the auto-dimming rearview mirror, an electrochromic device the company pioneered and now supplies to nearly every major automaker. Gentex says it holds close to 90% of the global auto-dimming mirror market, up from roughly 77% in 2003, backed by more than 2,200 patents worldwide. Interior and exterior mirrors ship with integrated features Gentex also makes: HomeLink garage and gate control, compass and telematics modules, and driver-facing cameras.

The company has spent the past decade turning the mirror into a display and sensing platform. Its Full Display Mirror replaces the reflective glass with a live camera feed for an unobstructed rear view, and Gentex builds the CMOS imagers, electrochromic coatings, and glass processing behind it in-house. Beyond automotive, Gentex applies the same electrochromic chemistry to dimmable aircraft windows for Boeing and business jets, makes photoelectric smoke detectors and signaling devices for commercial fire protection, and, through its 2025 VOXX International acquisition, added a Premium Audio segment (Klipsch and other brands) plus EyeLock iris-biometric authentication and aftermarket automotive electronics. Emerging work spans large-area dimmable glass, medical and defense sensing, and nanofiber materials.

Gentex is unusually vertically integrated for a supplier its size. It runs its own microelectronics, camera and imager development, chemical and coating development, glass bending and processing, software, and automated assembly. That control over the full stack, from the chemistry of the mirror to the firmware in the camera, is what lets it protect a near-monopoly position against lower-cost tier suppliers.

Financial performance

Gentex is publicly traded on the Nasdaq under GNTX and reports full financials. For fiscal 2025 the company posted consolidated net sales of $2.53 billion, up 10% from $2.31 billion in 2024, with net income of $384.8 million and income from operations of $473.9 million, an operating margin near 18.7%. Consolidated gross margin was 34.2%. Automotive remained the large majority of revenue at roughly $2.22 billion, while VOXX, acquired in April 2025, contributed $267.2 million for the partial year.

The balance sheet is conservative by design. Gentex carries very little debt relative to equity and funds capital spending, dividends, and buybacks from operating cash flow, a profile it has maintained for years. Through the first half of fiscal 2026 the company reported second-quarter net sales of $651.3 million and a gross margin of 37.0%, and it guided full-year 2026 revenue to a range of $2.65 to $2.75 billion. These are published figures from the company's own quarterly reporting.

Ownership and history

Gentex was founded in 1974 in Zeeland, Michigan, where it remains headquartered at 600 North Centennial Street. The company started in fire protection, developing smoke detectors, then invented the commercial electrochromic auto-dimming mirror in the 1980s and built its automotive business around it. It has been publicly listed for decades and is one of the larger employers in west Michigan, with roughly 6,400 employees per recent estimates.

Leadership is long-tenured and promoted from within. Steve Downing has been Chief Executive Officer since January 2018 after serving as President, COO, and earlier CFO; he has been with Gentex since 2002. Neil Boehm is Chief Operating Officer and Chief Technology Officer, and Kevin Nash is Vice President of Finance, Chief Financial Officer, and Treasurer. The April 2025 acquisition of VOXX International, an all-cash deal valued at roughly $196 million, was the company's largest and marked a deliberate push to diversify beyond automotive mirrors into consumer audio, biometrics, and aftermarket electronics.

Certifications and quality

Gentex states that its quality systems are certified to IATF 16949:2016, the automotive industry quality management standard, by Intertek. The company describes quality as its highest priority and points to proprietary manufacturing, testing, and yield capabilities developed over four decades of electrochromic production. As a direct supplier to global automakers, Gentex operates the advanced product quality planning and part-approval disciplines expected of a Tier 1 automotive electronics supplier. Its fire protection and aerospace product lines carry the separate certifications required in those regulated markets.

Known customers

Gentex supplies most global automakers through its mirror and electronics programs, and its dimmable-glass business is tied to named aerospace platforms. The relationships below are documented in the company's own disclosures or major-outlet coverage.

Individual automaker program names are largely undisclosed, as is normal for mirror and electronics supply. The market-share position, not a customer roster, is the load-bearing fact: at close to 90% of auto-dimming mirrors, Gentex ships to nearly every automaker that offers the feature.

Sourcing evidence

Gentex appears in US customs bill-of-lading records with 601 import shipments on record, the most recent dated September 19, 2026, consistent with a Michigan manufacturer that imports components and materials for domestic assembly. Named foreign suppliers include Transitions Optical (Thailand), Chin Poon Industrial, Wontae Die Casting, and KCE Electronics Public, a mix of optical, printed-circuit, die-cast, and electronics inputs that matches a mirror-and-camera product line rather than finished-goods resale.

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, 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 Gentex Corporation make?

Gentex makes auto-dimming rearview mirrors, camera-based Full Display Mirrors, HomeLink control modules, dimmable aircraft windows, commercial smoke detectors and fire-signaling devices, and, since 2025, premium audio products and iris-biometric authentication. Its core technology is electrochromic glass, which it invented for automotive use in the 1980s.

Who owns Gentex Corporation?

Gentex is a publicly traded company listed on the Nasdaq under the ticker GNTX. It is independent, not owned by a parent company, and has been public for decades. It is headquartered in Zeeland, Michigan.

What is Gentex Corporation's revenue?

Gentex reported consolidated net sales of $2.53 billion for fiscal 2025, up 10% from 2024, with net income of $384.8 million. The company guided full-year 2026 revenue to a range of $2.65 to $2.75 billion. These are figures from its own public quarterly and annual reporting.

Where is Gentex Corporation headquartered?

Gentex is headquartered at 600 North Centennial Street in Zeeland, Michigan, where it was founded in 1974. It is one of the larger manufacturing employers in west Michigan.

Who are Gentex Corporation's customers?

Gentex supplies most global automakers with auto-dimming mirrors and camera systems, holding close to 90% of the auto-dimming mirror market. It also supplies dimmable windows to aerospace customers including Boeing and business-jet makers, and sells premium audio and aftermarket electronics through its VOXX segment.

What certifications does Gentex hold?

Gentex states that its quality systems are certified to IATF 16949:2016, the automotive industry quality management standard, by Intertek. Its fire protection and aerospace product lines carry the additional certifications required for those regulated markets.

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