Self-performing EPC firm and design-build general contractor delivering concept-to-completion in construction, architectural & engineering, steel, electrical, mechanical, plumbing, welding & fabrication, manufacturing, crane, trucking, oil & gas workover Headquartered in Watertown, South Dakota, we’re a full-service EPC and design-build construction firm that self-performs across construction, con
trols & automation, electrical, mechanical, steel erection, manufacturing, engineering, architecture, and more. We take pride in doing things the right way—with grit, integrity, and a relentless focus on results. Our teams deliver high-quality work across agriculture, industrial, commercial, renewable energy, manufacturing, and water/wastewater projects throughout South Dakota and beyond. From local jobs to multi-million-dollar facilities across the Midwest, we bring flexibility, innovation, and real-world problem-solving to every project. We believe in investing in our people, growing the next generation of skilled leaders, and riding for the brand every step of the way. That’s the Sentry way.
