ETA SA Manufacture Horlog̬re Suisse is a calibres manufacturing and producing company for watch industry.

Montres Breguet SA, a subsidiary of The Swatch Group AG, is a Swiss company located in Vaud. The firm manufactures watches and jewelry.

Part of The Swatch Group AG, Nivarox-FAR SA is a company headquartered in Le Locle, Switzerland. The firm produces oscillating and escapement parts.

Part of Compagnie Financière Richemont SA, Richemont International SA is a Swiss company located in Villars-sur-Glâne that manufactures watches and jewellery.

Seiko Instruments, Inc. manufactures electronic components and communications equipment. Its products include thermal printers, plotters, factory automation robotics, grinding technology systems, and LCD components for mobile phones, optical fiber connectors, and ion beam systems used in precision fabrication. It has offices in Korea, China, Taiwan, Hong Kong, Singapore, Belgium, France, Sweden, and the US. The company was founded in 1937 and is headquartered in Chiba-shi, Japan.

Patek Philippe SA is a Swiss private company located in Plan-les-Ouates with a presence in several countries. The firm manufactures watches and clocks. It was founded in 1839. Claude Peny is currently the CEO of the company.

Blancpain S.A. manufactures and markets watches and timepieces for men and women. It also provides various services, such as opening of the case; disassembling the case, dial, hands, and movement; cleaning of the case, bracelet, and movement; polishing of the case and metallic bracelet; replacement of worn movement components; reassembly; lubrication; placing the movement in the case; assembling the dial and hands; water–resistance test; and quality control. The company offers its products through its boutiques worldwide, as well as retailers. Blancpain S.A. was formerly known as Brown sent Egypt. Source-[businessweek][http://investing.businessweek.com/research/stocks/private/snapshot.asp?privcapId=22511512]

Omega SA is a private company headquartered in Bucharest, Romania, that provides investments and research services.

Rolex is a manufacturing company that designs and manufactures watches for men and women. The company markets and sells its products through retailers in Switzerland and internationally. It designs, develops, and produces in-house all the essential components of its watches, from the casting of the gold alloys to the machining, crafting, assembly, and finishing of the movement, case, dial, and bracelet. Rolex is also actively involved in supporting the arts, sports, exploration, the spirit of enterprise through a broad palette of sponsoring activities and philanthropic programs. It was founded in 1905 and is based in Geneva, Switzerland.

Lange Uhren GmbH manufactures wristwatches and timepieces. It offers wristwatches, pocket watches, and other timepieces. The company was founded by Ferdinand A. Lange on December 07, 1845 and is headquartered in Glashutte, Germany.

Vaucher Manufacture Fleurier manufactures and sells watches.

Gebr��der Junghans Gesellschaft Mit Beschr��nkter Haftung, a subsidiary of Diehl Stiftung & Co. KG, is a company headquartered in Roethenbach an der Pegnitz, Germany. The firm rents and leases land, buildings and apartments. R. Blauh��fer J. Drexler is currently the CEO of the company.

Sargent & Greenleaf prides itself on a tradition of quality and innovation which stretches back to 1857. It was then that James Sargent, a bright and inventive young sales agent for Yale & Greenleaf Lock Manufacturers, made the decision to build a lock that would offer a level of security that far surpassed any device available at the time. The result of his resolve and genius was Sargent's Magnetic Bank Lock, the first successful key changeable combination lock. The lock gained almost immediate acceptance from safe manufacturers and the United States Treasury Department, bringing financial stability and paving the way for James Sargent to continue bringing new ideas and products to the security industry. In 1865, one of Mr. Sargent's former employers, Halbert Greenleaf, became his equal partner in the firm of Sargent & Greenleaf. A manufacturing facility was built in Rochester, New York, and the company remained in that city until 1975. James Sargent was never one to rest on the success of past achievements. In 1868, he invented Sargent's Automatic Lock, bringing refinements to the original Sargent's Magnetic Bank Lock. Then, in 1873, using parts from locks and two, eight-day kitchen clocks, Mr. Sargent created the first time lock to be installed on a bank vault door. He personally connected the time lock to the vault door of the First National Bank in Morrison, Illinois, on May 26, 1874. This lock continued to secure the vault for nearly forty years until the bank was remodeled and a larger vault was built.

Asulab SA is a private company headquartered in Marin, Switzerland. The firm manufactures digital watches and cameras.

Notre Dame Intermédica Participações SA provides healthcare plans and medical services. It also operates hospitals and clinic centers. The company was founded by Paulo Sergio Barros Barbanti in 1968 and is headquartered in São Paulo, Brazil.