International Line Builders is a full-service electrical distribution and transmission power line construction company. It has operations in Washington, Oregon, Idaho, California and Texas. The company, also known as ILB, has capabilities for installing utility infrastructure facilities. In operation for more than 25 years, International Line Builders has completed several overhead transmission projects for residential and commercial customers. Additionally, it has trenching and directional drilling capabilities for underground cables and vaults. The company offers repair and troubleshooting solutions for network and underground distribution systems. International Line Builders clients include PacifiCorp and Avista. It is a part of the MDU Construction Services Group.