Parts & Services for Tanks, Trucks & Trailers

Our Mission

Knox Post Trailer Companies strives to be the leader in the tank, truck & trailer industry through excellent workmanship and superior customer service. We are committed to building long-lasting, strong relationships with our customers, vendors and employees to ensure success and profitability for all parties.

We are proud to be able to offer our customers parts & services in the tank, truck and trailer industries through two of our companies: Knox Trailers, Inc. and Post Onsite Tank Testing & Repair. We look forward to seeing you soon!