Crane Materials International

What Crane Materials International does

Crane Materials International (CMI Limited Co.) is a U.S.-based manufacturer and fabricator of engineered products for marine walls, flood protection, water control, soil stabilization, groundwater cut-off, and industrial/marine access applications, headquartered in Woodstock, Georgia. The company's portfolio spans four sheet piling technologies (ShoreGuard vinyl with XCR additives, UltraComposite FRP composite, AlumiGuard aluminum, and TimberGuard polymer-encapsulated wood), complemented by the patented PileClaw steel mandrel installation equipment and ArmorWare accessories. A second franchise covers marine and industrial access systems under the GatorDock (aluminum docks and gangways), GatorBridge (pedestrian and modular trail bridges), GatorAccess (stairs and platforms), and Mantle Industries brands, which was acquired in 2017. The athletic fencing line ChampionWall and the composite decking/lumber brands Lumberock and BearBoard (added via the Engineered Plastic Systems acquisition on 2020-03-31) extend the platform beyond core marine work.

CMI serves four customer segments: primary commercial marine construction (contractors, developers, government agencies handling seawalls, bulkheads, levees, and chemical containment) and residential waterfront properties (via a 'Find a Contractor' network), plus secondary municipalities/parks (pedestrian and utility bridges) and athletic facilities (colleges and universities). Documented end customers include USDA Forest Service, Georgia Institute of Technology, NC Department of Transportation, Mount Pleasant Water Authority, San Jose Water Company, the City Marina Company, and Port of Barranquilla in Colombia.

The business model is hardware sales with project-based, quote-driven pricing (dock systems ranging from $25 to $100+ per square foot depending on specifications, billed on multi-year contract cadences). GTM is sales-led and bifurcated: direct specification-driven sales to engineers, government procurement, and large developers for enterprise projects, supported by professional development (PDH) training and a deep technical library of specs, AutoCAD files, and whitepapers; and a certified contractor network handling residential and smaller commercial deployments. The company has been owned by Capital Partners since September 18, 2017.

Name

Crane Materials International

Legal name

CMI Limited Co.

Website

https://cmilc.com

Company type

Private

Founded year

1989

Operating status

Operating

Headcount range

101–250 employees

Short description

Crane Materials International (CMI) is a Woodstock, Georgia-based manufacturer of engineered sheet piling (vinyl, FRP composite, aluminum, polymer-encapsulated wood), marine access systems (docks, gangways, bridges, platforms), athletic fencing, and installation equipment, serving commercial marine contractors, government agencies, residential waterfront property owners, municipalities, and athletic facilities.

Ownership category

akta.pro rank

Product category

Marine Construction and Shoreline Protection Materials

NAICS

Construction Machinery Manufacturing (33312)

SIC

Miscellaneous Plastics Products (3080), Construction Machinery & Equip (3531)

akta.pro primary industry

FRP/GRP & Composite Materials (Resins, Fibers, Core Materials) (IMAJAKAC)

Keywords

• Marine sheet piling
• Flood protection materials
• Aluminum marine access
• Engineered construction materials
• Shore stabilization products

Headquarters

HQ city

Woodstock

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Sheet Piling Products: Sale of vinyl, FRP composite, and aluminum sheet piling products for marine walls, flood protection, and water control applications.
2. Marine Access Systems: Sale of aluminum docks, gangways, bridges, and access platforms for marine applications.
3. Athletic Fencing: Sale of ChampionWall athletic fence systems for sports facilities.
4. Installation Equipment: Sale of PileClaw steel mandrels and other installation equipment for sheet piling products.
5. Accessories and Components: Sale of ArmorWare components and accessories, deck materials, and complementary products.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels6 records

Core offering

Crane Materials International manufactures and fabricates engineered products for marine shoreline protection, flood control, water management, and marine access. Its portfolio spans vinyl, FRP composite, aluminum, and polymer-encapsulated wood sheet piling, aluminum docks, gangways, bridges, stairs and platforms, the proprietary PileClaw installation mandrel, accessories, athletic fencing, composite decking, and plastic lumber for commercial and residential applications.

Product overview

CMI is a manufacturer and fabricator of engineered products providing solutions for marine walls, flood-levee protection, water control, chemical containment, soil stabilization, groundwater cut-off, aluminum bridges, gangways, docks and industrial access applications. The product portfolio consists of multiple brands and product lines organized around sheet piling solutions (ShoreGuard® vinyl, UltraComposite™ FRP composite, AlumiGuard™ aluminum, TimberGuard® polymer encapsulated wood), marine access systems (GatorDock® docks and gangways, GatorBridge® bridges, GatorAccess stairs and platforms), installation equipment (PileClaw® steel mandrel, ArmorWare™ accessories), and specialty products (ChampionWall athletic fencing, Lumberock decking, BearBoard plastic lumber). The company also acquired Mantle Industries for aluminum ramp and gangway capabilities. Products emphasize sustainable, corrosion-resistant materials designed for marine environments, flood protection, and industrial access applications.

Differentiator

Problem solved

Functional benefit

Brands

• ShoreGuard: Vinyl sheet piling for seawalls and marine structures
• GatorDock
• GatorBridge
• GatorAccess
• ChampionWall
• ArmorWare
• UltraComposite
• AlumiGuard
• TimberGuard
• PileClaw
• Cumberland Trail Bridge
• Mantle Industries
• Lumberock
• BearBoard

Products and services

• ShoreGuard Vinyl Sheet Piling Vinyl sheet piling engineered as a cost-effective and sustainable building material for seawalls, bulkheads, flood protection, and water control structures. Features XCR technology for UV degradation protection and resistance to boring animals and insects. Used by marine construction contractors, government agencies, and residential waterfront property owners.
• UltraComposite FRP Composite Sheet Piling FRP composite sheet piling and round piling engineered to deliver higher strength and longevity than conventional materials. Targeted at marine wall, bulkhead, and water control applications where corrosion resistance is critical.
• AlumiGuard Aluminum Sheet Piling High-performance aluminum sheet piling used to construct seawalls, bulkheads, and water control structures. Used in marine construction projects requiring lightweight, corrosion-resistant piling.
• TimberGuard Polymer Encapsulated Treated Wood Polymer encapsulation system for treated wood piling that resists rot, UV damage, and marine borer damage — the primary failure modes of conventional wood piling in marine environments.
• PileClaw Steel Mandrel (Installation Equipment) Patented steel mandrel that drives vinyl or composite sheet piling more efficiently in challenging installation environments, capable of driving to depths up to 70 feet with a built-in alignment system. Sold to marine construction contractors.
• ArmorWare Sheet Piling Accessories Components and accessories engineered to match the longevity and service life of CMI's vinyl, composite, and aluminum sheet piling products. Sold alongside piling systems to marine contractors.
• GatorDock Aluminum Docks & Gangways Fabricated aluminum marine access systems designed for high performance, long life, and cost efficiency in harsh marine environments. Sold to marinas, waterfront developers, municipalities, and residential customers for docks, piers, and gangways.
• GatorBridge Aluminum Bridges Aluminum pedestrian bridges fabricated in designs ranging from high-traffic pedestrian bridges to modular trail bridge systems for remote sites. Used by municipalities, parks, and developers.
• GatorAccess Aluminum Stairs & Platforms Aluminum utility stairs and platforms that are a fraction of the weight of steel with superior rust and wear resistance, designed for industrial applications such as ADA-compliant stairs and elevated walkways.
• Cumberland Trail Bridge Modular System Modular aluminum trail bridge system whose components can be hand- or ATV-carried into remote sites and assembled with basic hand tools in lengths ranging from 20 feet to 60 feet, designed for trail bridges in parks and remote locations.
• Lumberock Premium Composite Decking Premium composite decking boards marketed for marine and outdoor deck applications as part of the Lumberock product line. Sold to dock and outdoor construction contractors and end customers.
• BearBoard Commercial Plastic Lumber Commercial plastic lumber product used for marine, construction, and industrial applications requiring a low-maintenance, moisture- and rot-resistant material.
• Mantle Industries (Aluminum Ramps, Gangways, and Catwalks) Brand line of aluminum ramps, gangways, catwalks, and industrial access solutions originally produced by Mantle Industries, which CMI acquired in 2017. Sold for marine and industrial access applications.
• ChampionWall Athletic Fencing Athletic fence system designed for baseball, softball, soccer, and lacrosse facilities. Built from more than 98% recycled materials with I-Beam Lock technology, supporting self-supported heights up to 14-plus feet and externally supported heights up to 20-plus feet. Targeted at colleges, universities, and sports complexes.

Quantifiable outcome

• ShoreGuard reduced material costs by 33% compared to original design at Port of Barranquilla project
• +3 more outcomes

Named customers10 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

Five partnerships are on record, tiered core and minor.

• TA LovingcoreStrategic or Co-development Partner · 1 January 2008Construction partner for Swan Quarter, NC flood protection project. TA Loving worked with CMI and Balfour Beatty on the 17.7-mile dike project protecting approximately 2,400 acres.
• Balfour BeattycoreStrategic or Co-development Partner · 1 January 2008Construction partner for Swan Quarter, NC flood protection project. Part of joint venture with TA Loving and Natural Conservation Service.
• Natural Conservation ServicecoreStrategic or Co-development Partner · 1 January 2008Government partner for Swan Quarter, NC flood protection project. Partnered on 17.7-mile dike project protecting approximately 2,400 acres.
• TDM ColombiaminorImplementation/ SI/ Consulting PartnerEngineering firm that specified ShoreGuard for Port of Barranquilla project due to durability, ease of installation, and chemical resistance.
• CONVIASminorChannel Partner/ Reseller/ DistributorContractor for Port of Barranquilla project who installed ShoreGuard sheet piling for highway stabilization.

Scale indicators2 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Skyline Steel (Nucor): Nucor's Skyline Steel is the largest producer of steel sheet piling in North America. Directly competes with CMI's AlumiGuard and UltraComposite products in the seawall/bulkhead specification market but operates as part of a much larger steel mill portfolio, giving it scale and steel-only material positioning compared to CMI's multi-material approach.
• Trex Company: Trex is the largest manufacturer of wood-alternative composite decking in North America, with Lumberock and BearBoard as direct competitive products within CMI's portfolio. Trex operates at much greater scale and through a broad two-step distribution model, making it a more established competitor in the composite decking/lumber category that CMI serves through its sub-brands.

Direct peers

• JD Fields & Company: JD Fields is a leading North American sheet piling manufacturer and distributor offering steel, vinyl, and composite piling — closely paralleling CMI's ShoreGuard, UltraComposite, and AlumiGuard lines. Directly comparable product mix, distribution model, and target customer base of contractors, engineers, and government agencies.
• Meever & Meever: Meever is a global supplier of steel and vinyl sheet piling, anchor systems, and complementary marine infrastructure products. Closely comparable to CMI in marine construction product range and project-based specifications, with overlap in seawall, bulkhead, and cofferdam applications.
• Inland Waters / RCMP: Inland Waters operates a marine construction services business similar to CMI's waterfront infrastructure focus. While CMI is product-led and Inland is service-led, both target the same seawall, shoreline stabilization, and waterfront access end-markets with overlapping government and developer customers.
• Thompson Fabricating: Thompson Fabricating designs and fabricates aluminum marine access products including docks, gangways, and bridges — directly competing with CMI's GatorDock, GatorBridge, and GatorAccess lines. Comparable custom aluminum fabrication capability with similar marina and waterfront end-markets.

Emerging players

• Poseidon Bulkhead Systems: Poseidon Bulkhead Systems manufactures composite and vinyl seawall products competing directly with CMI's ShoreGuard in residential and small commercial marine construction. Smaller-scale competitor focused on a narrower product range but in the same specification-driven residential waterfront channel.
• Wave Armor Industries: Wave Armor produces modular floating and fixed dock systems in plastic/composite materials. Overlaps with CMI's GatorDock product line in residential and small commercial marine access but with a more modular, off-the-shelf product positioning aimed at direct-to-consumer buyers.

Others

• Alcoa Corporation: Alcoa is a major global aluminum producer whose rolled products and extrusions form the upstream raw material supply for CMI's AlumiGuard, GatorDock, GatorBridge, and GatorAccess lines. Relevant as a material supplier rather than direct competitor, but Alcoa's downstream push into specialty aluminum products intersects with CMI's marine access portfolio.

Regional players

• Atlantic Marine Construction: Atlantic Marine Construction is a Southeast US-based marine construction contractor building bulkheads, docks, and seawalls. Not a direct product peer to CMI but a buyer/installer of CMI's products — representative of CMI's primary distributor channel and competitive context in regional marine construction.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/cmilctv
• LinkedInlinkedin.com/company/88979
• Xx.com/cmisheetpiling

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries2 records

Funding overview

Funding rounds

Investors

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

M&A1 record

Investments

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

Frequently asked questions about Crane Materials International