Founded in 1958, The Nelson Companies is a family of independently operated specialty contracting businesses serving commercial, industrial, healthcare, education, manufacturing, and institutional markets throughout the Midwest. The Nelson Companies is comprised of: • Nelson Insulation Company – Illinois • Nelson Insulation Company – Central States • Nelson Insulation Company – Wisconsin • Nelson Thermal Insulation & Firestopping • Enervation, Inc. Each company operates within its respective markets and serves its own customers, projects, and business relationships. While sharing a common heritage and commitment to quality, safety, customer service, and continuous improvement, each company maintains its own management, project operations, customer relationships, and market focus. The companies provide expertise in mechanical insulation, thermal insulation, firestopping, building envelope solutions, energy conservation services, and specialty contracting disciplines. Their experience spans a broad range of project types, including healthcare facilities, manufacturing plants, industrial operations, educational institutions, commercial developments, and mission-critical infrastructure. For more than six decades, the Nelson name has been associated with dependable service, technical expertise, and long-term customer relationships. Through a commitment to craftsmanship, safety, professionalism, and accountability, the companies have earned the trust of customers across the markets they serve. Whether supporting a complex industrial facility, a healthcare campus, a manufacturing operation, or a commercial construction project, each company is dedicated to helping its customers improve safety, energy efficiency, system performance, and long-term building value.
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The Nelson Insulation Co. annual revenue was $7 million in 2026.
Nathan Duprey is the VP of Sales IL of Nelson Insulation Co..
33 people are employed at Nelson Insulation Co..
Nelson Insulation Co. is based in Lake Zurich, Illinois.
The NAICS codes for Nelson Insulation Co. are [23831, 23, 2383, 238310, 238].
The SIC codes for Nelson Insulation Co. are [17, 174].