What Portadam does

Portadam is a privately held, small U.S. company headquartered in Williamstown, New Jersey, with approximately 31 employees. The firm was founded in 1975, giving it roughly five decades of continuous operating history, and operates with no publicly listed equity ticker or disclosed parent company.

The company's website (portadam.com) and all provided third-party data sources returned only minimal firmographic information — no product catalog, technology stack description, customer logos, pricing, partnerships, certifications, or management team details were disclosed. The website content itself was not accessible during data collection (a loader/verification page was returned), so the specific functional offering, end markets served, and technical components underlying the business cannot be verified from the supplied input.

Without disclosed revenue figures, funding history, or segment data, the business model also cannot be characterized with confidence. What can be said factually is that Portadam is a small, established, privately held company based in southern New Jersey with a long operating tenure; the absence of disclosed ownership, capital structure, or growth signals leaves the company's current commercial scale, customer mix, and strategic direction unspecified in the available data.

Name

Portadam

Website

https://portadam.com

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

Portadam is a privately held, small U.S. firm founded in 1975 and headquartered in Williamstown, New Jersey, with approximately 31 employees. Specific products, services, technologies, customer segments, and business model details were not disclosed in the available data.

Ownership category

akta.pro rank

Product category

Temporary Water Management

NAICS

Port and Harbor Operations (488310)

SIC

Services-Facilities Support Management Services (8744)

akta.pro primary industry

Port Equipment Operations (Crane Operators, RTG/RMG, Straddle Carrier Operations) (TLAHALAE)

Keywords

• Temporary dam systems
• Flood protection services
• Water diversion solutions
• Cofferdam rentals
• Construction dewatering

GTM type

B2B

Offering type

Services

Cost components

Operations, Personnel, Marketing or Sales

Core offering

Portadam is a small U.S. firm (founded 1975, ~31 employees) based in Williamstown, NJ. The company's actual product/service line is not documented in the available source content — the accessible web page returned only a loader/verification page and no substantive product or service description.

Differentiator

Problem solved

Functional benefit

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Emerging players

• Elastec: Elastec designs and manufactures environmental and marine equipment including booms, barriers, and water control devices for industrial and oil spill response markets, overlapping with Portadam in portable water-barrier technology for marine applications.
• Hydrologiq: Hydrologiq provides water-based barrier and dewatering solutions for the UK and European marine construction market, applying the same temporary cofferdam concept as Portadam but with regional focus and a more technology-forward positioning.
• Geomembrane Technologies Inc. (GTI): GTI designs and fabricates geomembrane-based containment and dewatering systems used in mining, wastewater, and marine construction, providing engineered alternatives to traditional cofferdam approaches like Portadam's.

Broad incumbents

• Royal Boskalis Westminster: Boskalis is a global marine services and dredging contractor that frequently self-performs or subcontracts cofferdam and dewatering work as part of larger port, harbor, and offshore construction projects, competing with Portadam at the integrated-project level.
• Great Lakes Dredging & Dock Corporation: Great Lakes Dredging & Dock is a major US marine construction and dredging contractor that routinely performs port deepening, terminal construction, and shoreline protection — projects in which temporary cofferdam systems (like Portadam's) are deployed as part of the work scope.

Regional players

• Manson Construction Co. Manson Construction is a US marine construction and dredging contractor specializing in port, harbor, and waterway projects along the East and Gulf Coasts, directly overlapping with Portadam's primary operating geography and customer base.

Direct peers

• Aqua Dam: Aqua Dam provides water-filled temporary cofferdams used for dewatering in marine, port, and construction applications, mirroring Portadam's core rental-and-deployment business model and serving overlapping customers such as port authorities and marine contractors.
• Dam-It Dams: Dam-It Dams rents portable water-inflated dams for construction, marine, and environmental dewatering projects across North America, directly competing with Portadam for port, harbor, and inland waterway temporary dam work.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat2 records

Key risks5 records

Key highlights4 records

Customer concentration

• LinkedInlinkedin.com/company/portadam

Revenue estimate

Valuation estimate

Number of profiles

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 Portadam