Specialty equipment for the ground others can't work.
For as long as he can remember, Shamus O'Shea has been fascinated by heavy equipment—especially Caterpillar excavators. What started as a childhood obsession grew into a career built around finding, building, and delivering specialized equipment capable of tackling some of the toughest jobs in the industry.
That passion became O'Shea Equipment Company (OEC).
Today, OEC specializes in premium amphibious excavators, long-reach excavation equipment, and specialty off-road support vehicles for contractors working in wetlands, waterways, marshes, and other challenging environments throughout North America. We don't just sell equipment—we understand how it's used in the field and help our customers find the right machine for the job.
Our inventory features late-model Caterpillar amphibious excavators equipped with industry-leading EIK and HAWK long-reach systems, amphibious undercarriages, and specialized attachments. We also offer Oshkosh 6×6 4,000-gallon water trucks, purpose-built for dust suppression, pipeline construction, mining, disaster response, and remote job sites where conventional trucks simply can't operate.
Every machine we offer is carefully selected with an emphasis on quality, reliability, and performance. Whether it's a low-hour CAT excavator with a professionally engineered amphibious conversion or a rugged off-road water truck ready for immediate deployment, our goal is simple: provide equipment we would be proud to own ourselves.
Based in Montgomery, Texas, with equipment staged throughout the Houston area, O'Shea Equipment Company serves customers across the United States. From wetland restoration and dredging projects to pipeline construction and environmental remediation, we're committed to helping contractors find dependable specialty equipment backed by honest service and industry expertise.
At OEC, heavy equipment isn't just our business—it's our passion. We look forward to helping you find the right machine for your next project.