1887 – Aktiebolaget Skanska Cementgjuteriet established in Sweden.
1965 – AB Skanska Cementgjuteriet is registered on the Stockholm Stock Exchange A list.
1971-1978 – Skanska Cementgjuteriet carries out its first US projects – subway systems in New York and Washington D.C.
1982 – Skanska first acquisition in the US. Karl Koch Erecting, acquired to expand Skanska presence in the Northeast.
1984 – Skanska Cementgjuteriet changes its name to Skanska.
1989 – Skanska acquires Slattery Contracting Company to expand Skanska presence in the Northeast.
1990 – Skanska acquires Sordoni Construction Co. to expand Skanska presence in the Northeast.
1994 – Skanska acquires Beers Construction and expands operations into the Southeast.
1998 – Skanska acquires Nielsons, Inc. and expands operations into the Midwest, Colorado region.
1997 – Skanska acquires Beacon Construction Company and expands operations into the Boston area.
1998 – Skanska acquires Bayshore Concrete Products, Inc. and expands operations into pre-cast and concreate production.
1998 – Skanska acquires A.J. Etkin Construction Company and expands operations into Michigan and the Midwest.
1998 – Skanska acquires Tidewater Construction Corporation and expands heavy civil operations in the Southeast.
2000 – Skanska acquires Barclay White and expands operations in the northeast and Mid-Atlantic areas.
2000 – Skanska acquires Baugh Construction and expands operations in the west – Portland and Seattle.
2002 – The Skanska Code of Conduct is introduced.
2002 – Skanska acquires E. L. Yeager Construction Co., Inc. and expands operations in the west – California.
2004 – Skanska acquires BFW Construction and expands operations in the Midwest and Texas.
2004 – Skanska helps establish the World Economic Forum’s Partnering Against Corruption Initiative.
2005 – Skanska completes the first LEED® certified airport terminal in the U.S.: Boston Logan International Airport, Delta Air Lines Terminal A Redevelopment.
2006 – Skanska completes the world’s first LEED Gold certified hospital: Providence Newberg Medical Center in Portland, Oregon.
2007 – Skanska ranked #1 in Engineering News Record’s first ever Top Green Contractors.
2009 – Skanska’s New York headquarters becomes first LEED Platinum certified office in the Empire State Building.
2011 - Skanska acquires Industrial Contractors, Inc and PCI expands operations into the power and industrial market sectors in the Midwest. The acquisition of PCI also expands Skanska’s design and engineering services.
2012 – Skanska celebrates its 125-year anniversary.
2013 – The Bertschi Living Building Science Wing in Seattle, Washington becomes the world’s fourth Living Building Certified project.
2014 – Skanska, along with The Construction Industry Safety Initiative (CISI) group and the Incident and Injury Free (IIF) CEO Forum, leads an annual U.S. Industry Safety Week that involves over 50 national and global construction firms.
2017 – Skanska commits to Paris Agreement.
2017 – Skanska reaffirms commitment to Paris Agreement, signing the “We Are Still In” pledge, alongside over 1,200 leading U.S. businesses, investors, universities, cities and states.
2018 – Skanska named to Forbes’ 2018 List of Best Employers for Diversity.