Dissen & Juhn Company

What Dissen & Juhn Company does

Dissen & Juhn Company is a privately held marine and foundation construction contractor founded in 1973 and headquartered in Stevensville, Maryland. The firm serves commercial and government clients in the Chesapeake and Delaware Bay watershed regions through an integrated portfolio of six core services: marina construction, dock building, dredging, shoreline protection, bridges and boardwalks, and pile driving. It has completed more than 1,200 projects over its 50-plus-year history for customers including municipal marinas, federal installations (Patuxent Naval Air Station, U.S. Coast Guard Station Lewes), private marina operators (Safe Harbor Oxford, Anchorage Marina), educational institutions (St. Mary's College of Maryland, Stevenson University), and hospitality operators (Hyatt Chesapeake Resort). Differentiated capabilities include an owned fleet of mechanical and hydraulic clam shell dredges, in-house engineers and specialty trades (pile drivers, carpenters, heavy equipment operators), and proficiency across timber, vinyl, composite, steel, and concrete mediums. The company self-describes as the pre-eminent mid-size marine and foundation contractor in the Chesapeake Bay watershed.

The business operates on a project-based, quote-driven B2B model: each engagement is a customized bid for marine construction work, with revenue recognized as one-time project contracts rather than recurring subscriptions. Go-to-market is sales-led, relying on a 1,200+ project track record, client referrals, RFP responses for government contracts, and a website showcasing project galleries and case studies. The company does not use resellers, distributors, or marketplace channels. Leadership is family-led, with Gilbert W. Dissen as President and Mark Dissen as Vice President, and there is no disclosed institutional ownership, parent company, or outside funding. Operating geographies are explicitly regional (Chesapeake and Delaware Bay watersheds) with no global footprint claimed, and the company maintains a small corporate office (8 employees listed) while scaling field crews as project demand requires.

Name

Dissen & Juhn Company

Legal name

Dissen & Juhn Company

Website

https://dissen-juhn.com

Company type

Private

Founded year

1973

Operating status

Operating

Short description

Family-owned marine and foundation construction contractor founded in 1973, serving commercial and government clients across the Chesapeake and Delaware Bay watershed with marina construction, dredging, dock building, shoreline protection, bridges, and pile driving services.

Ownership category

akta.pro rank

Product category

Marine Construction Services

akta.pro primary industry

Quay & Waterfront Civil Works (Piers, Quays, Seawalls, Dredging, Revetments) (IMAJALAF)

akta.pro secondary industries

Dredging & Channel Deepening (Capital & Maintenance) (IMAFAJAB), Marine Terminals & Cargo Handling Infrastructure (RoRo, Bulk, Container) (IMAFAJAF)

Keywords

• Marine construction services
• Marina construction
• Dredging services
• Shoreline protection
• Pile driving

Headquarters

HQ city

Stevensville

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

Revenue model

1. Marine Construction Services: Project-based revenue from marine construction services including marina construction, dock building, dredging, shoreline protection, pile driving, and bridges/boardwalks for commercial and government clients.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Dissen & Juhn Company is a marine and foundation construction contractor that builds marinas, docks, bulkheads, shorelines, bridges, and boardwalks, and performs dredging and pile driving for commercial and government clients throughout the Chesapeake and Delaware Bay watershed. The company delivers these services using its own fleet of mechanical and hydraulic clam shell dredges, in-house engineers, heavy equipment operators, carpenters, and pile drivers, with work awarded through customized, project-specific bids.

Product overview

Dissen & Juhn Company is a marine and foundation construction firm offering an integrated portfolio of six core construction services: Marina Construction, Dock Building, Dredging, Shoreline Protection, Bridges & Boardwalks, and Pile Driving. These services are designed to work synergistically—marina construction projects commonly combine dredging, bulkheading, and dock building, while shoreline protection projects incorporate bulkheads, armor stone, and living shorelines. Pile driving provides foundational support across multiple project types. The company operates as a single unified offering rather than separate modular products, serving commercial and government clients throughout the Chesapeake and Delaware Bay watershed regions.

Differentiator

Problem solved

Functional benefit

Products and services

• Pile Driving Installation of driven pile systems in various soil substrates using impact and vibratory methods, including round timber and pipe piles, timber, steel, vinyl, and composite sheet piles, and steel H piles. Also proficient in drilled piles, pile testing, encapsulation, and pile repair services that underpin marina, dock, bulkhead, bridge, and shoreline protection projects.
• Marina Construction Construction of robust, safe, environmentally friendly, and aesthetically pleasing marina structures using marine grade materials. Scope typically combines dredging, bulkheads, dock building, shoreline protection, timber breakwaters, wave fences, and boat ramps, delivered for commercial marina operators and government clients.
• Dock Building Building of docks, piers, and wharves for public and private entities, with a heavy carpentry specialty covering fixed and floating docks and heavy piers. Timber structures are positioned as low-cost, aesthetically pleasing, and eco-friendly alternatives.
• Dredging Small and mid-sized dredging projects that deepen and widen entrance channels, fairways, and boat slips, performed with a fleet of mechanical and hydraulic clam shell dredges capable of handling sandy, silty, and clayey materials in tight or open water environments.
• Shoreline Protection Erosion control structures delivered in both "hard" and "soft" varieties, including living shorelines that combine stone sills, sand fill, and marsh grasses, as well as bulkheads in timber, vinyl, and steel interlocking sheets, armor stone, and riprap.
• Bridges & Boardwalks Timber vehicular and pedestrian bridges traversing ponds, streams, wetlands, and aquatic environments, positioned as cost-effective and attractive structures that are less equipment intensive and generally less disruptive to the environment than alternatives.

Quantifiable outcome

• Completed more than 1,200 marine construction projects since 1973

Named customers12 records

Segments3 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

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Orion Marine Group: Public marine construction services company providing heavy civil marine construction, dredging, and specialty services across the U.S. Comparable to D&J in core service offerings (dredging, bulkheads, pile driving, dock/marina work) but at a national scale and capital intensity that D&J cannot match.
• Weeks Marine: Private marine construction and dredging firm with operations in heavy civil marine, beach nourishment, and coastal protection. Overlaps with D&J in dredging, shoreline protection, and pile driving, but operates at materially larger contract scale.
• Great Lakes Dredge & Dock Corporation: Largest provider of dredging services in the U.S., with growing coastal protection and marine construction capabilities. Closely comparable to D&J's dredging and shoreline protection work but at vastly greater scale.
• Manson Construction Co. Marine construction and heavy civil contractor with dredging, pier/wharf, bulkhead, and shoreline capabilities on the U.S. East and Gulf coasts. Directly comparable in service mix to D&J but operating a much larger fleet and project backlog.
• Tetra Tech: Global engineering and consulting firm with a strong waterfront and coastal practice (design, permitting, resilience). Comparable as a design partner or competitor on shoreline protection and marina design-build pursuits where D&J operates.

Direct peers

• Cashman Dredging & Marine Contracting: Marine construction and dredging contractor serving the U.S. East Coast with services spanning dredging, pile driving, bulkheads, and pier construction — directly comparable to D&J's integrated six-service portfolio.
• Bellingham Marine Industries: Specialist marina design-build contractor that manufactures and installs floating dock systems, breakwaters, and marina accessories. Closely comparable to D&J's marina construction and dock building services, though focused more on standardized dock products than full civil marine construction.
• Meeco Sullivan: Marina construction and dock manufacturing firm offering floating dock systems and marina design-build across the U.S. Directly comparable to D&J's marina and dock building work and competes for the same marina owner-operator RFPs.

Regional players

• W.F. Magann Corporation: Marine construction, heavy civil, and dredging contractor based in the Mid-Atlantic/Chesapeake region. Highly comparable to D&J in size, geography, and service mix, making it one of the closest regional competitors.

Others

• TRC Companies: Engineering, environmental, and construction management firm with coastal and waterfront infrastructure practice. Adjacent to D&J as an engineering/owner-rep counterpart on government marina and shoreline projects rather than a direct construction competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles6 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 Dissen & Juhn Company