Bob Willem Leenen

Mine Safety Appliances Co. LLC develops, manufactures and supplies safety products. The firm's products include self-contained breathing apparatus, gas masks, gas detection instruments, head protection, respirators, thermal imaging cameras and fall protection. Its solutions integrate multiple combinations of electronics, mechanical systems and advanced materials to ensure that users around the world remain protected in even the most hazardous of situations. The company was founded by John T. Ryan Sr. and George H. Deike Sr. on June 14, 1914 and is headquartered in Pittsburgh, PA.

MSA (Britain) Ltd. develops and manufactures products engaged in the safety and gas detection field. Its product range includes selections of Personal Protective Equipment (PPE) and Gas and Fire Detection Systems available, designed for use in a variety of industries and applications. The company was founded on June 26, 1947 and is headquartered in Devizes, the United Kingdom.

Part of MSA Safety, Inc., Bristol Uniforms Ltd. is a leading designer and manufacturer of protective clothing for emergency services worldwide. Bristol Uniforms has been a pioneer in the development of specialist firefighter PPE for over 60 years. The British company employs around 200 people and sells its garments through a network of approximately 70 experienced distributors. The CEOs are Roger Startin and Ian Peter Mitchell. The company, founded in 1801 by John Gardiner, started as a clothing manufacturer in Staple Hill, UK. Bristol Uniforms was acquired by MSA Great Britain Holdings Ltd. on January 25, 2021 for $82.03 million.

Part of MSA Safety, Inc., MSA Deutschland GmbH is a German company that manufactures protective equipment and gas measuring instruments. The company is based in Berlin, Germany. The CEOs of the company are James Michael Daugherty, Frank Krüger, Richard William Roda.

Part of MSA Safety, Inc., MSA Technologies & Enterprise Services GmbH is a German company that repairs data processing equipment. The company is based in Berlin, Germany. The CEOs are James Michael Daugherty, Kimberly Seaton Moore, Richard William Roda. The company was founded in 2004.

Vayga SAS manufactures coffee and tea products. The company was founded by Antoine Paul Roman Vayson de Pradenne and Ronald N. Herring on June 2, 2016 and is headquartered in Paris, France.