McCarthy-Bush Corporation

What McCarthy-Bush Corporation does

McCarthy-Bush Corporation is a fifth-generation family-owned diversified industrial conglomerate headquartered in Davenport, Iowa, founded in 1897 and operating today through a family of wholly-owned subsidiaries spanning heavy construction, design-build contracting, limestone mining, custom metal fabrication, slag and ash processing, and — as of May 2026 — industrial machining and centrifuge repair. Operating entities include McCarthy Improvement (concrete, earth moving, underground utilities, bridge building), Bush Construction (general contracting for commercial and public-sector clients), Clinton Engineering (design-build, turn-key metal buildings, multi-trade self-performance since 1926), Linwood Mining & Minerals (open-cut and underground limestone quarry with proven reserves exceeding 400 million tons), Oertel Metal Works (custom fabrication for mining, rail, food service, recycling and material handling), AMSCO Ash Management (flowable fill for underground mine stabilization), Blackheart Slag (steel slag processing into asphalt aggregate), and Roemer Machine (centrifuge repair and machining for ethanol, pharmaceutical, food/beverage and wastewater customers). Cross-subsidiary delivery is coordinated through an Industrial Solutions Group offering single-source integrated project management.

Revenue is generated via project-based construction contracts awarded through competitive bidding and direct enterprise relationships, long-term industrial supply contracts for calcium carbonate, lime products and aggregates, custom metal fabrication orders, and ongoing by-product processing streams. Pricing is not publicly disclosed; quotes are issued on a project-by-project basis. Go-to-market is sales-led enterprise field sales targeting commercial developers, public agencies, and industrial buyers — notably healthcare systems (Mississippi Valley Surgery Center, Midwest Medical Clinic, Cardiovascular Medicine, Orthopedic Specialists), steel manufacturer SSAB, and Atlas Roofing Corp, for whom Linwood Mining is constructing a dedicated supply facility tied to a $224M Clinton, Iowa shingle plant. Geographic footprint is regional, concentrated in the Midwest and Southeast United States, including the Quad Cities area.

Differentiation rests on multi-trade self-performance (carpentry, concrete, steel fabrication, steel erection, underground utilities, excavation), integration across mining-to-finished-construction capabilities, modern design tooling including BIM and VR/3D visualization, and the durability of a multi-generational family ownership and governance model. Notable named accounts span multiple industries with multi-year engagement histories; however, revenue figures are not publicly disclosed and headcount is reported only in the 101-250 band. The operating geography remains regional, with no global footprint claims in the supplied material.

Name

McCarthy-Bush Corporation

Legal name

McCarthy-Bush Corporation

Website

https://mccarthybushcorp.com

Company type

Private

Founded year

1897

Operating status

Operating

Headcount range

101–250 employees

Short description

McCarthy-Bush Corporation is a fifth-generation family-owned industrial conglomerate operating construction, mining, metal fabrication, slag processing, and machining subsidiaries that serve commercial developers, public agencies, and industrial clients across the Midwest and Southeast US.

Ownership category

akta.pro rank

Product category

Heavy Construction & Industrial Services

NAICS

Nonresidential Building Construction (2362), Other Heavy and Civil Engineering Construction (237990), Site Preparation Contractors (23891)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540), Heavy Construction Other Than Bldg Const - Contractors (1600), Operative Builders (1531)

akta.pro primary industry

Office & Corporate Building Construction (IMAFACAA)

akta.pro secondary industry

Construction Aggregates Mining & Processing (Sand, Gravel, Crushed Stone) (IMADAAAI)

Keywords

• Heavy construction services
• Limestone mining aggregates
• Custom metal fabrication
• Design-build contracting
• Industrial minerals supply

Headquarters

HQ city

Davenport

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Marketing or Sales, Technology or R&D

Revenue model

1. Construction Services: Project-based construction services including design-build, new construction, rehabilitation, renovation, and turn-key metal buildings for commercial, industrial, and municipal projects. Revenue generated through competitive bidding and direct contracts with clients.
2. Mining and Aggregates: Limestone quarrying and processing of calcium carbonate, lime products, and aggregates. Long-term supply contracts with industrial customers including ethanol, pharmaceutical, and construction industries.
3. Metal Fabrication: Custom metal fabrication services for mining, rail car, food service, recycling, machining, and material handling industries. Fabrication of safety solutions, handrails, spouting, conveyors, machinery, stairs and platforms.
4. Ash Management Processing: Processing of approved customer by-products into flowable fill for underground mine stabilization.
5. Steel Slag Processing: Processing of steel slag byproduct into aggregate chips and sand for asphalt production. Approximately 80% of product goes into SMA (Stone Mastic Asphalt) hot mix asphalt.

Go-to-market motion2 records

Distribution channels2 records

Marketing channels5 records

Core offering

McCarthy-Bush Corporation operates a family of wholly-owned subsidiaries delivering heavy construction (concrete, earthwork, underground utilities, bridge building), design-build and metal building construction, limestone mining and calcium carbonate/aggregate supply, custom metal fabrication, ash management for mine stabilization, and steel slag processing for asphalt. Services are sold primarily to commercial developers, public agencies, and industrial companies across the Midwest and Southeast United States.

Product overview

McCarthy-Bush Corporation is a diversified construction, mining, and manufacturing conglomerate operating as a family of companies under unified ownership. Rather than a single unified software product or platform, the company offers an integrated portfolio of industrial subsidiaries and service divisions: McCarthy Improvement (heavy construction), Bush Construction (general contracting), Clinton Engineering (design-build and metal buildings), Linwood Mining & Minerals (limestone quarrying and calcium carbonate products), AMSCO (ash management/mining stabilization), Oertel Metal Works (custom metal fabrication), Blackheart Slag (steel slag processing for asphalt), and the recently acquired Roemer Machine (centrifuge repair and machining). These entities operate independently under the McCarthy-Bush umbrella while the Industrial Solutions Group offers integrated project delivery combining capabilities across all divisions for manufacturing and distribution facility projects.

Differentiator

Problem solved

Functional benefit

Brands

• McCarthy-Bush Industrial Solutions Group: Integrated solutions group offering manufacturing and distribution facilities access to construction services, design-build, fabrication, installation, and maintenance.

Products and services

• McCarthy Improvement Heavy Construction Services Provides concrete services combined with earth moving, underground utilities, bridge building, and repair for comprehensive heavy construction projects serving commercial developers and public agencies across the Midwest and Southeast.
• Bush Construction General Contracting General construction services for commercial and industrial clients, providing competitive pricing through strong local subcontractor and supplier relationships and operating under principles of honesty, integrity, and mutual respect.
• Clinton Engineering Design-Build and Metal Buildings Design-build, new construction, rehabilitation, turn-key metal buildings, and renovation of commercial, industrial, and municipal projects in the greater Clinton, Iowa area, self-performing multiple trades for better scheduling and cost control since 1926.
• Linwood Mining & Minerals Limestone and Calcium Carbonate Supply Operates as an open-cut and underground limestone quarry producing calcium carbonate, lime products, and aggregates to customer specifications, with proven reserves of more than 400 million tons ensuring high-capacity operations into the 22nd century.
• AMSCO Ash Management Mine Stabilization Services Processes approved customer by-products into a flowable fill that is injected into abandoned sections of old underground mine workings to stabilize those areas for the long term.
• Oertel Metal Works Custom Fabrication Provides custom metal fabrication for the mining, rail car, food service, recycling, machining, and material handling industries, including safety guarding, handrails, spouting, conveyors, machinery, stairs, and platforms, using automated plasma cutters and plate rolling.
• Blackheart Slag Steel Slag Processing Processes steel slag (a byproduct of steelmaking) into aggregate chips and sand used for asphalt production, with approximately 80% of the product going into Stone Mastic Asphalt (SMA) hot mix asphalt.
• Roemer Machine Centrifuge Repair and Machining Provides specialized centrifuge repair technical expertise and machining capabilities serving ethanol, pharmaceutical, food and beverage, wastewater processing, and other industrial sectors, now operating as a wholly-owned subsidiary of McCarthy-Bush Corporation after the May 2026 acquisition.
• McCarthy-Bush Industrial Solutions Group Integrated Delivery Provides manufacturing and distribution facility clients with single-point access to the full McCarthy-Bush capabilities stack, including architectural design, Building Information Modeling, virtual reality/3D, pre-construction, construction management, carbon/stainless/aluminum steel fabrication, welding, industrial installation, earthwork, concrete, pavement, utilities, and machine bases.

Quantifiable outcome

• Minimal downtime during smokestack replacement at Linwood Mining
• +2 more outcomes

Named customers6 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered core and minor.

• Roemer MachinecoreStrategic or Co-development Partner · 1 May 2026Acquisition of Roemer Machine, a Davenport-based manufacturing company specializing in centrifuge repair technical expertise and machining capabilities. Founded in 1940, it is a third-generation family-owned business. The acquisition expands McCarthy-Bush's manufacturing portfolio with specialized capabilities serving ethanol, pharmaceutical, food and beverage, and wastewater processing sectors. Roemer Machine continues operating under its name with existing team remaining, led by Scott Tarchinski as General Manager.
• Atlas Roofing CorpcoreStrategic or Co-development PartnerAtlas Roofing Corp is building a $224 million shingle plant in Clinton, Iowa (expected completion 2026) that will become a major employer. Linwood Mining is constructing a new facility to supply high calcium limestone for Atlas's roofing shingle manufacturing. This represents one of the largest projects in McCarthy-Bush company history.
• United WayminorOthersCommunity impact partner with Volunteer Hub for United Way Quad Cities. All opportunities listed on the Volunteer Hub are eligible for McCarthy-Bush's volunteer time off program.
• YMCAminorOthersYMCA volunteer opportunities are eligible for McCarthy-Bush's volunteer time off program. Any events associated with the McCarthy-Bush Turkey Trot are also eligible.

Scale indicators4 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Sterling Industrial: Midwest-based industrial construction and metal fabrication services firm serving mining, rail, and heavy industrial customers. Comparable to Oertel Metal Works' custom fabrication and Clinton Engineering's industrial design-build capabilities.
• Walsh Group: Privately held, family-owned heavy construction and building services firm operating across general building, transportation, and water infrastructure. Highly comparable to McCarthy-Bush's family-owned structure, multi-trade self-perform model, and regional Midwest-heavy focus.
• Holder Construction: Privately held national commercial construction firm specializing in large-scale industrial, manufacturing, and distribution facility projects. Comparable to the Industrial Solutions Group's integrated design-build delivery model for manufacturing/distribution facility clients.
• Ames Construction: Private, family-owned heavy civil and mining contractor with operations in heavy highway, rail, mining, and energy infrastructure. Comparable to McCarthy Improvement's earthwork/underground utilities capabilities and integration with Linwood Mining's aggregates supply.
• Carmeuse: Global lime and limestone producer with significant U.S. operations serving steel, construction, environmental, and industrial customers. Comparable to Linwood Mining's high-purity limestone supply to SSAB and other industrial customers.
• US Lime & Minerals: Public U.S. lime and limestone producer supplying high-purity limestone and lime products to industrial customers including steel, flue gas, water treatment, and construction. Most directly comparable to Linwood Mining's calcium carbonate and lime products business serving steel and industrial customers.

Broad incumbents

• Granite Construction: Public heavy civil construction contractor focused on transportation infrastructure, water resources, and mining. Comparable to McCarthy Improvement's heavy/highway construction and underground utilities work, though at significantly larger scale and national footprint.
• Martin Marietta Materials: Leading U.S. supplier of aggregates (crushed stone, sand, gravel) and heavy-side building materials. Closely comparable to Linwood Mining's limestone reserves and Blackheart Slag's aggregate production, with overlapping customer base in infrastructure and industrial markets.
• Headwaters Incorporated (acquired by Boral): Was a leading U.S. building products and construction materials company with significant aggregates and concrete products operations. Comparable to Linwood Mining's aggregates production and Blackheart Slag's asphalt-grade aggregate processing for SMA hot mix.
• Vulcan Materials Company: Largest U.S. producer of construction aggregates, crushed stone, sand, and gravel. Directly comparable to Linwood Mining's limestone/aggregates business and Blackheart Slag's aggregate processing operations, though Vulcan operates at vastly larger national scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/Corp_McB
• YouTubeyoutube.com/channel/UClsTk7ojz5V-w2kC8vmrtWQ
• Facebookfacebook.com/McCarthyBushCorp
• LinkedInlinkedin.com/company/mccarthybushcorporation

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 records

Subsidiaries8 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about McCarthy-Bush Corporation