AB Atlas was founded in Stockholm, Sweden. The company offered all types of equipment used in the building and maintenance of railways

AB Diesels Motorer was founded in Sickla, Sweden. It was a technically prominent company that made several important improvements on the diesel engine, such as enabling a quick switch from forward to reverse, which opened up the market for marine engines.

The first rock drill was produced. The Cyklop and Rex light rock drills were hand-powered, light, and hard-hitting, making drilling much more efficient for customers.

AB Atlas expanded internationally. Within a few years, there are operations in Russia, England and Norway.

AB Diesels Motorer merged with AB Atlas, creating AB Atlas Diesel.

The newly formed company moved to Sickla, Sweden, where the headquarters have been ever since. The engines produced, mainly stationary and marine diesels, could be loaded onto railcars inside the factory, which was connected to the entire European railway network.

The ground-breaking Swedish Method was introduced. “One man – one machine”. Key innovations in the solution were the combination of a “pusher leg” and hard metal drill bits

Atlas Copco officially establishes dedicated U.S. operations, opening its first sales offices in New York and San Francisco.

Atlas Copco Pacific is organized in San Francisco, but by 1956 moves to 930 Brittan Ave, San Carlos CA. Additional district offices are located in Spokane, Seattle, Salt Lake City, Phoenix, and Denver.

Atlas Copco Eastern is established in Paramus, NJ, with district offices soon opening in Duluth, St. Louis, Picher, and Knoxville. In July, the headquarters move to a new office space at 163 Linwood Ave., near Union Ave., in Paterson, NJ.

After the acquisition of Arpic Engineering NV in Belgium, the company’s name was changed to Atlas Copco. Copco came from the French words Compagnie Pneumatique Commerciale.

The rig-mounted hydraulic breaker helped create the 11.6 km long Mont Blanc tunnel, which at the time, was the world's longest. It reduced the distance between Paris and Rome by 150 kilometers

The legendary face drilling rig Boomer was introduced. It was, and still is, a robust face drilling rig for tunneling and mining applications. Today, customers can have the Boomer with either diesel or battery driveline.

Copco Pacific Limited and Atlas Copco Eastern, which had previously merged, are established as the holding company for all U.S. operations. The company becomes known as Atlas Copco North America, and separate operating subsidiaries are established for the different business lines.

For a period of ten years at Dinosaur Cove in Australia, the company’s products were used for historical excavations. A new dinosaur species was discovered, and in appreciation of the help received, it got the name Atlascopcosaurus Loadsi.

The Atlas Copco 1984 Annual Report acknowledges that the United States “is by far the Group’s largest single market,” noting 25 percent increase in sales.

Through the acquisition of Secoroc in Fagersta, Sweden, Atlas Copco became the world’s largest supplier of complete rock drilling equipment.

Atlas Copco acquires Wagner from PACCAR, a manufacturer of underground mine trucks and scoops.

Atlas Copco acquires T-H Industries, a manufacturer of down-the-hole drill bits.

Ingersoll-Rand Drilling Solutions, a manufacturer of large blasthole drilling rigs in the USA, was acquired. The strategic acquisition makes Atlas Copco a leading supplier in surface drilling.

An almost silent surface drill rig was launched, perfect for use around the clock at construction sites in densely populated areas

Atlas Copco sells its electric tool business consisting of Milwaukee Electric Tool Corporation and AEG.

The U.S. Dept. of Energy awards Atlas Copco Secoroc $3.4 million for a three-year research and development project working with Sandia National Laboratories.

Atlas Copco Secoroc agrees to acquire U.S.-based NewTech Drilling Products LLC. NewTech develops and manufactures drilling products with a focus on rotary PDC polycrystalline diamond compact) drill bits as well as klaw bits for rotary soft rock mining.

Epiroc was listed on Nasdaq Stockholm with Ronnie Leten as Chair of the Board and Per Lindberg as President & CEO

Helena Hedblom was appointed President & CEO. “Helena has a strong business focus, an in-depth knowledge of the business and is an appreciated leader who is living and breathing the Epiroc values,” said Ronnie Leten, Chair of Epiroc’s Board of Directors.

Epiroc’s ambitious climate targets were validated as science based.

Epiroc completes the acquisition of STANLEY Infrastructure, bringing brands including LaBounty, Paladin, and Pengo into the portfolio and strengthening Epiroc's presence in infrastructure and construction across the United States.

Epiroc USA LLC received the Top Workplaces USA award from Energage and USA Today in 2024, based solely on employee feedback, and has continued to hold this recognition through 2026. A testament to the culture and people that make Epiroc USA a great place to work.