The Brown Instrument Company developed, manufactured, and sold industrial controls and measuring instruments, such as thermometers, pressure gauges, voltmeters, and pyrometers. The company was founded in 1857 by an English engineer and inventor, Edward Brown (1834-1905). The records of the Brown Instrument Company consist of research files documenting the development of measuring instruments and industrial control systems used in continuous process manufacturing.

The Budd Company was a manufacturer of steel automobiles, passenger rail cars, and other transportation products. The company began in 1912 in Philadelphia as the Edward G. Budd Manufacturing Company, specializing in the manufacturing of all-steel body automobiles. This small collection of papers from the Braking Systems Division consists mainly of Budd Company engineering reports dating from 1946 to 1973. These reports examine brake drums, brake linings, and noise generation. There is also a small set of reports from the Society of Automotive Engineers (SAE) that dates from 1963 to 1967. Also included are materials from the Budd Institute, Phase II, a week-long training at Michigan State University Management Education Center in November 1993.

C. Robert Werle (1893-1990) was an industrial engineer who worked for Cooley & Marvin Company of Boston conducting time studies, as well as analysis of accounting and plant methods for a variety of clients, mostly in the textile, leather, woodworking, and metalworking industries. Werle's papers cover his career between 1917 and 1931, with emphasis on his employment at Cooley & Marvin; Bigelow, Kent, Willard & Co.; and Watsontown Door & Sash. The papers include correspondence, reports, and work papers, mostly connected with time studies. There are numerous examples of the standard forms, cards, and tags used to control reporting and the routing of materials in factories.

The Leeds & Northrup Company thrived throughout the twentieth century as a premier manufacturer of precision measuring and scientific equipment. The bulk of the Leeds & Northrup Electrical Power Systems records come from three employees, whose work at Leeds & Northrup spanned from 1928-1981: W. Spencer Bloor (1918-2002), Nathan Cohn (1907-1989), and S. Byron Morehouse. All worked within the Instrumentation and Controls for Electric Power Application Division. The records include papers, presentations, correspondence, memos, blueprints, and other materials relating to the development of a national electrical power grid in the United States. Technological and commercial developments in automatic electric power generation control, stabilization of energy load across regions, and problems of interconnection feature prominently in these materials.

The Eli Bridge Company manufactures Ferris Wheels and other amusement park rides, such as the Scrambler. The company was founded by William Eli "W.E." Sullivan (1861-1932) in 1906. Most of this collection consists of a trade journal on carnival rides and devices dating between 1916 and 1935. The monthly magazine was first titled The Optimist, and later continued as Big Eli News. It featured articles about amusement park rides, parts, and operations, and included advertisements and illustrations.

Hardy Jefferson Bowen (1913-2003) was an engineer and scientist. He was founder and president of Industrial Models Inc., a company which built scale models as an aid in the construction of oil refineries and chemical plants. This small collection of his papers primarily consist of materials documenting his modelmaking business.

The Imperial Tobacco Company of Great Britain and Ireland is a multinational manufacturer of tobacco products, including multiple cigarette and cigar brands. This set of fifty cigarette cards illustrates "engineering wonders" from around the world. Each card has a color lithograph illustration on one side and a description on the other side.

Ralph Mosser Barnes (1900-1984) was an American industrial engineer who was a pioneer in motion and time study applications. This collection consists of four films showing a selection of studies that were managed or designed by Barnes.

The Society for the Promotion of Engineering Education, which was founded in 1893 and became part of the American Society for Engineering Education in 1946, was a professional society of engineering school deans, professors, practicing engineers, and industry executives. During the 1930s and 1940s, Dugald C. Jackson (1865-1951), Professor of Electrical Engineering at MIT, served as executive director. MIT president Karl Compton (1887-1954) and Gerard Swope (1872-1957) from the General Electric Company were active members. This collection of correspondence consists largely of letters between Jackson, Swope, and Compton, which document their efforts to shape the curriculum at major engineering schools.