Neb. Rev. Stat. § 25-313: Neb. Rev. Stat. § 25-313

Any company or association of persons formed for the purpose of (1) carrying on any trade or business, (2) holding any species of property in this state, or (3) representing employees in collective bargaining with employers, and not incorporated, may sue and be sued by such usual name as such company, partnership or association may have assumed to itself or be known by. It shall not be necessary in such case to set forth in the process or pleadings or to prove at the trial the names of the persons composing such company.