40
Growth Score in past quarter
pts
Heat Score 40 in past quarter
3 pts
Company Performance Metrics
Score
Trend
AI Content may contain mistakes and is not legal, financial or investment advice.Learn more.
Growth Score - The measure of growth based on company activity, operational metrics, and investments
Growth Trend - The change in the growth score over the given time period
Heat Score - The measure of the market interest, media activity, and Crunchbase profile activity
Heat Trend - The change in the heat score over the given time period
See more interactive data and historical milestones on desktop for the best experience
909964
Proto is an American industrial hand tool company.
About the Company
Proto was founded in 1907 in Los Angeles, CA by Alphonso Plomb, Jacob Weninger, and Charles Williams as PLOMB Tools. They began making punches and chisels from Model T axles. In 1917, John Pendelton became a partner, and his son Morris Pendelton became the General Manager in 1922.
In the 1930's, Morris introduced the first line of
combination wrenches to the market. They were based on the original design by Mr. Plomb.
Throughout the 1940's, PLOMB Tools acquired several other companies including Cragin Tool of Chicago, IL in 1940, P&C Tool of Oregon in 1941, Penens Tool of Cleveland, OH in 1942, and J.P. Danielson of Jamestown, NY in 1947.