The French company Charrière, founded by Joseph-Frédéric-Benoêt Charrière in the early 19th century, stands as a testament to innovation in medical instrument manufacturing. Born in 1803 in Switzerland, Charrière moved to Paris as a teenager and eventually took over his mentor's cutlery workshop. He became renowned for producing high-quality surgical instruments, notably in lithotripsy and anesthesia. Charrière's technical skill, creativity, and eagerness to learn from surgeons directly influenced his designs. He is also credited with creating the 'Charrière scale,' a measurement standard for medical instruments (also known as 'French gauge'). After his death the company worked under the name Maison Collin till 1957 when it was taken over by Maison Gentile. Charrière's legacy in medical technology endures, symbolizing groundbreaking advancements in healthcare tools.

The company, Shepard & Dudley NY, established by instrument makers in New York, operated from 1870 to the late 1890s. The company Shepard and Dudley did not manufacture instruments during or prior to the Civil War, they were producers of surgical sets for civilian purposes post-war. 

Founded in 1864 in Berlin, SCHMIDT + HAENSCH has established itself as a pioneering force in the development of precision optical instruments and analytical technologies. With a deep-rooted heritage in fine mechanics, optics, and engineering, the company has continuously contributed to scientific advancement and industrial innovation across multiple sectors.

The company Hawksley and Sons was founded in 1869 by Charles Hawksley, in Oxford Street London. The talented founder invented Haemocytometer of his own design. The firm became was one of the of the founding members of the British Surgical Trade Association (today BHTA). It was focused on the Blood counting chambers, and early Blood Pressure devices. William Baum took over the company in 1916. In the post-war years the firm started to produce centrifuges.  

The French company Maison Collin was organized as a successor of the famous Maison Charrière, founded by Joseph-Frédéric-Benoêt Charrière in the early 19th century. Anatole Pierre Urbain Louis Colline (1831-1923) and Louis-Apollinaire Robert bought the Charrière firm on May 19, 1866. Robert left the company at 1876. Address of Maison Collin was 60 rue Mazarine, Paris. The company worked under the name Maison Collin till 1957 when it was taken over by Maison Gentile. 

The Partnership of P.I. Makhin and Co. In Moscow (Товарищество П. И. Махин и Ко. В Москве) was engaged in the sale and repair of medical equipment. Founded: 1868. Dissolved: 1918 (?). Address: Rozhdestvenska Street, near Kuznetsky Most, House of Suzdal Podvor'e No. 7. Awardswith medal depicted in the 1914 catalog: Silver Medal of the Nizhny Novgorod Fair in 1895; Gold Medal of the Exhibition in Paris 1900; Diploma of Honor Paris 1904. Supplier of the instruments of Collin and Mathieu in Russia