The Bristol Alliance of Companies is a group of Alaska Native-owned engineering, construction and environmental services companies with offices in Alaska, Washington, Texas and North Carolina, which often team together as well as working on projects independently.  The Bristol Alliance includes: Bristol Environmental & Engineering Services Corporation; Bristol Construction Services, LLC; Bristol Environmental Remediation Services, LLC; Bristol Fuel Systems, LLC; Bristol Design Build Services, LLC, and Bristol Industries, LLC, which provides the firms with administrative support.  All the companies are subsidiaries of Bristol Bay Native Corporation.