Bernina International AG is a privately owned international manufacturer of sewing and embroidery systems. The company was founded in Steckborn, Switzerland, and develops, manufactures, and sells goods and services for the textile market, primarily household sewing-related products in the fields of embroidery, quilting, home textiles, garment sewing, and crafting.

The origins of the company lie in the 1893 invention of the hemstitch sewing machine by Swiss inventor and entrepreneur Karl Friedrich Gegauf. Currently, the company's products include sewing machines, embroidery machines, serger/overlocker machines, and computer software for embroidery design.

The present-day Bernina International AG was founded by Karl Friedrich Gegauf (1860–1926), who, at the beginning of his career, decided to pursue an apprenticeship as a mechanic instead of studying medicine. After completing his apprenticeship, he worked in the Baum embroidery machine factory in Rorschach. In 1890, Karl Friedrich Gegauf set up his own business in Steckborn, Switzerland, opening an embroidery and mechanical workshop for the manufacture of his own invention, a monogram embroidery machine. Together with his brother Georg, a salesman, Karl Friedrich ran the Gebrüder Gegauf (Bros. Gegauf) company. Through his involvement in the textile industry, he noticed how laborious it was to produce hemstitching, which until then could only be done manually. Consequently, in 1893, Karl Friedrich Gegauf invented the world's first hemstitch sewing machine, capable of sewing 100 stitches per minute.

1893 is therefore considered the official founding year of Bernina.

In 1895, the Bros. Gegauf workshop was completely destroyed by fire, except for the prototype of the hemstitch sewing machine, which was the only thing that could be rescued. Karl Friedrich built a new workshop in an old barn, where the focus was no longer on embroidery but on the construction of the hemstitch sewing machine. About 70 people were employed in the serial production of the hemstitch sewing machine. The mechanical production of hemstitching, whether as embellishment for handkerchiefs, tablecloths, or bedspreads, was commonly referred to as "gegaufing", because the name Gegauf became well known in the industry.

In 1919, Fritz Gegauf (1893–1980), one of Karl's sons, together with his father, filed a patent application for the "Wotan" hemstitch sewing machine, which became another international success for the company, which changed its name to "Fritz Gegauf". After being in Paris selling the company's tin openers, which had no market in Switzerland, he returned to his home town. His brother Gustav and he took control of the factory after their father's death in 1926. During the Great Depression, Fritz Gegauf joined forces with the embroidery factory, Brütsch & Sohn in St. Gallen, which was also operating in the red. By the end of 1932, they had developed the company's first household sewing machine, which they named Bernina. The Bernina was soon being produced as furniture-cum-sewing-machine, which required the building of a new, attached furniture factory in Steckborn. As of October 26, 1937, a total of 20,000 machines had left the factory in Steckborn. In 1938, the company introduced the first Bernina zigzag machine, and in 1945, the world's first portable zigzag machine with a free arm on the market. In 1947, Gustav Gegauf left the company. By mid-1963, one million Bernina zigzag sewing machines had been manufactured in Steckborn. Since then, the company has commonly been called Bernina, although, since 1947, its official name has been "Fritz Gegauf Aktiengesellschaft, Bernina Nähmaschinenfabrik".

In 1959, Odette Ueltschi (1921–1992), Fritz Gegauf's daughter, became involved in the company, and took over the management of Bernina after the death of her brother in 1965. In 1963, the first Bernina sewing machine with a patented knee-activated presser foot lifter, the 730, appeared on the market. From 1963 onwards, the subsequent model, the 730, was produced, and in the same year, the millionth Bernina sewing machine was manufactured. The top-seller of all the models was the 830 class, which came into production in 1971 and continued until 1981. In 1981, the company took a further step in the development of household sewing machines. The 930 model was the first machine with a stretch-stitch function. It was followed by the 1130, the first fully automated sewing machine, launched in 1986. The enduring mark which Odette Gegauf-Ueltschi left on the company is reflected in the name of the bernette sewing machine line, formed by a combination of the first half of the brand name and the second half of her given name.

Hanspeter Ueltschi took over the management of Fritz Gegauf AG in 1988 from his mother Odette Gegauf-Ueltschi, and currently runs the company as owner and chairman of the board of directors. After studying business administration at the University of St. Gallen, Ueltschi spent seven years gaining professional experience in the USA before getting into the leadership of the family company in Switzerland. Under Ueltschi, the company expanded its leading position in the sewing machine technology sector, reduced manufacturing costs, and advanced product innovations and marketing. The company entered the computer age with the artista 180, Bernina's first sewing computer, and ensured the continuous development and optimization of computer technology in the sewing field, as demonstrated by the successive models of the artista and aurora series. Ueltschi worked towards his stated goal of making sewing more appealing and popular worldwide. In 1990, the company set up a production facility in Thailand in addition to the main factory in Steckborn. Bernina Thailand is owned by Bernina International and is managed locally by a Swiss management team. Ueltschi is also largely responsible for establishing the US as a key market and expansion to the new markets in Eastern Europe, Russia, South America, and India, as well as in the Middle East. He renamed "Fritz Gegauf AG" to "Bernina International AG" to accommodate the trend toward globalization and the success of the company brand.