Neb. Rev. Stat. § 11-109: Neb. Rev. Stat. § 11-109

All official bonds of county, precinct and other local officers shall be executed by the principal named in such bonds and by at least two sufficient sureties who shall be freeholders of the county in which such bonds are given; or any official bond of a county, precinct or local officer may be executed by the officer as principal and by a guaranty, surety, fidelity or bonding company as surety, or by two or more of such companies. Only such companies as are legally authorized to transact business in this state shall be eligible to suretyship on the bond of a county, precinct or other local officer.