Poltroncine petrolio mod. 854, Walter Knoll, Cassina

Inspired by the Bauhaus — founded in 1919 by Walter Gropius — Walter Knoll decided to bet big on modernism. He launched his eponymous German furniture maker in 1925, and the company has been going strong ever since.

Most design lovers are familiar with Knoll, the manufacturer of furniture by Eero Saarinen, Harry Bertoia, Marcel Breuer, Ludwig Mies van der Rohe and other modernist giants. It was founded by Hans Knoll in 1941 and led after his death by his wife, Florence Knoll, the doyenne of postwar American office interiors. In recent years, the company has added collections by Maya Lin, Rem Koolhaas, Frank Gehry and David Adjaye, among others, and encouraged customers to do what some of them had been doing all along: use Knoll’s “office furniture” at home.

Fewer Americans are familiar with Walter Knoll, the company Hans’s father founded in Stuttgart, Germany, in 1925 and later moved to nearby Herrenberg. That company has existed in the shadow of the larger U.S.-based Knoll for decades.

Both companies descended from the German manufacturer of ornate leather goods established by Wilhelm Knoll in 1866. In 1907, Wilhelm’s sons, Willy and Walter, took over the father’s business and started producing leather club chairs. Five years later, the company introduced its Nestra line of stripped-down wood and leather seating, foreshadowing the family’s future innovations.

In 1925, when he was 50, Walter Knoll launched the Walter Knoll Company, which soon released the revolutionary Prodomo line of chairs, whose upholstered seats and backs are supported by tubular metal frames. Other lightweight Walter Knoll pieces were used in the passenger compartment of the Hindenburg zeppelin.

In 1927, Walter Knoll furnished five apartments designed by Ludwig Mies van der Rohe for the Weissenhof Estate, 21 prototypes of “workers’ housing of the future” constructed as part of an exhibition in Stuttgart. A decade later, Walter’s son Hans, then 24, traveled to the United States to market his father’s furniture and to make a new life for himself in the New World. But inspired by his encounters with Jens Risom — a Danish-born designer who furthered Scandinavian modernism in the United States — Hans broke away from Walter, creating Knoll Associates (now known simply as Knoll). Florence Schust (later to become Hans’s wife) joined him in the company in 1943, and soon they were working with mid-century modern icons such as Saarinen and Bertoia on new designs and licensing Mies’s Barcelona chair.

After the war, with his factories destroyed and labor and materials in short supply, Walter Knoll turned to Hans for help. Hans sent over several pieces from his Vostra line, designed by Risom. Walter replaced the web seats with upholstery and launched his version of the Vostra at the New Living exhibition in Cologne in 1949. It became hugely successful, persuading many Germans still accustomed to traditional furniture to give modernism a go.

Walter Knoll retired in 1964, but his namesake firm continued growing in Germany. Just like the American Knoll, Walter Knoll has found that some customers want to use pieces originally meant as office furniture in their houses. In fact, these pieces give living and dining rooms a crispness that almost no residential furniture can match.

Find vintage Walter Knoll lounge chairs, sofas, tables and other furniture on 1stDibs.

Furniture manufacturer Cassina is a prolific design house for more reasons than one: It not only owns the licenses to an exquisite collection of iconic chairs, sofas, tables and other pieces from the 20th and 21st centuries but also produces original works that are characterized by innovation and the finest Italian craftsmanship.

Cassina’s illustrious legacy includes being one of the first companies to bring industrial design to Italy in the 1950s. Founded in 1927 in Meda, Italy, by brothers Cesare and Umberto Cassina, the Italian manufacturing giant originally specialized in bespoke woodworking. In nearly a century since its founding, the company has shown incredible foresight about design trends and the evolution of technology.

In 1964, Cassina signed an exclusive licensing agreement to manufacture furniture by Le Corbusier and his collaborators — such as the LC4 chaise longue made with trailblazing French modernist Charlotte Perriand and Pierre Jeanneret — a move that would shape the future of the company. Cassina’s I Maestri collection is an ongoing initiative to restyle landmark designs from the 20th century, such as pieces by Gerrit Rietveld (the Red and Blue armchair from 1918), Charles Rennie Mackintosh, Erik Gunnar Asplund, Franco Albini and Frank Lloyd Wright. The company preserves the intentions and original styles of their designs but adds updated techniques, materials and processes — rendering them the best possible combination of past, present and future. The brand has also worked with contemporary icons like Zaha Hadid, Gio Ponti and Philippe Starck.

Cassina’s original designs are cutting-edge as well. They include pieces for everyday use, the development of which is guided by comfort and the marriage of Italian craftsmanship with industrial technology.

Some of Cassina’s pieces, both from its contemporary and I Maestri collections, can be found in the collections of museums like the Museum of Modern Art and the Vitra Design Museum. In 2014, the company became part of Haworth in its acquisition of Italian furniture group Poltrona Frau, and in 2015, Spanish designer Patricia Urquiola joined Cassina as its art director, leading the brand into its next century of inventive style.

Find a collection of new and vintage Cassina furniture on 1stDibs.