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M. A. Mortenson Company

5 cases in this site's copy of the record · 1 of those 5 are marked open by the Board · Region 14, 18, 19, 27 · Bellevue, WA; Brookfield, WI; Lincoln, NE; Stanley, WI; Towner, CO

Each case links to the Board's own docket page. This site holds what the Board listed, not the documents.

The cases

Charge against an employer
CA
Filed 14 September 2026Case 27-CA-395191OpenTowner, CORegion 27Workers in the unit 60
M.A. Mortenson Company
CA
Filed 17 April 2012Case 17-CA-078951ClosedLincoln, NERegion 14Workers in the unit 50
M.A. Mortenson Company
RC
Filed 13 February 2007Case 19-RC-014932ClosedBellevue, WARegion 19Workers in the unit 10
Included: All journeymen and apprentice heavy equipment operators including but not limited to mechanics, surveyors, tech engineers, oilers, and riggers/bellmen employed by the Employer on jobsites in the counties on Attachment A. Excluded: All other crafts, office clerical employees, and guards and supervisors as defined in the Act.
Petition for an election
RC
Filed 19 March 2004Case 30-RC-006571ClosedBrookfield, WIRegion 18Workers in the unit 6
Included: All heavy equipment operators and other workers in the jurisdiction of I.U.O.E., Local 139 as set forth in Article VI and IX of the Master Collective Bargaining Agreement between the Associated General Contractors of Wisconsin, Inc. and the International Union of Operating Engineers, Local Union No. 139, AFL-CIO, effective June 1, 2002 through May 31, 2005, and all full time and regular part-time employees ...
Charge against an employer
CA
Filed 13 January 2004Case 30-CA-016691ClosedStanley, WIRegion 18Workers in the unit 600

Last refreshed 19 September 2026. What is in it, and what is not.

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