The Jurgensen Companies is a family-owned, Cincinnati-based construction and materials company established in 1934. For more than 85 years, it has served Ohio, Kentucky, and Indiana through heavy highway construction and the production of aggregates and asphalt, alongside paving and infrastructure work.
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The Gerken CompaniesThe Gerken Companies, founded in 1959 by Julian Gerken, is a family-owned construction and materials company headquartered in Napoleon, Ohio. The company produces asphalt materials, ready-mix concrete, and aggregate products, and provides asphalt paving, milling, and construction services. With more than 600 employees and multiple subsidiaries, it serves the construction industry across northwest Ohio and southeast Michigan.TOLEDO, OH
Irving Materials, Inc. (imi)Founded in 1928 as Irving Brothers Gravel Company, family-owned and operated Irving Materials, Inc. (imi) is a building-materials producer and supplier whose history began in gravel and aggregates. It produces ready-mix concrete, aggregates and asphalt, alongside construction divisions E&B Paving and Specialties Company, which undertake heavy-highway, civil and site-development work. imi serves customers across Indiana, Kentucky, Ohio and Tennessee, while Specialties Company operates in multiple states.FAIRFIELD, OH
KokosingFounded in 1951, Kokosing is a third-generation family-owned construction group that builds and maintains industrial facilities and infrastructure, and produces construction materials. Its companies include Kokosing Materials, which supplies asphalt, and The Olen Corporation, which mines and processes aggregates; McGraw Kokosing also operates an off-site fabrication business. The organization reports 4,000 team members and serves clients across the Midwest and Mid-Atlantic.FREDERICKTOWN, OH
Hilltop CompaniesFounded in Cincinnati in 1941 by I.W. and Katherine D. Steele, Hilltop Companies is a family-owned producer of ready-mixed concrete and aggregates serving Greater Cincinnati and the Ohio River Valley. The company mines stone, sand, and gravel from its own facilities and has grown across generations of Steele family ownership; it reports operating three quarries, three distribution terminals, and three ready-mixed concrete plants.CINCINNATI, OH