Trench Drains

Trench Drains Market Outlook

The global trench drains market is anticipated to reach approximately USD 2.5 billion by 2035, registering a noteworthy compound annual growth rate (CAGR) of 6.8% from 2025 to 2035. This growth is primarily driven by increasing urbanization, stringent regulations for stormwater management, and a heightened awareness of sustainable drainage solutions. Additionally, the rising demand for effective drainage systems in various sectors, including residential, commercial, and industrial, is fueling the market growth. As cities continue to develop and expand, the demand for trench drains, which offer efficient water management solutions, is projected to rise. Furthermore, technological advancements in materials and manufacturing processes are expected to enhance product offerings, allowing for better performance and longevity of trench drains. As a result, the market is poised for significant growth in the coming years.

Growth Factor of the Market

The trench drains market is primarily influenced by the growing need for effective stormwater management systems across various sectors. Urbanization and population growth have led to increased impervious surfaces, which in turn escalate surface runoff and flooding risks. This has prompted governments and municipalities to invest in infrastructure improvements, including trench drain systems, to handle excess rainwater efficiently. Furthermore, the rise in construction activities, particularly in emerging economies, has created a substantial demand for trench drains, as they are essential in ensuring that newly developed areas are equipped with adequate drainage systems. Another critical factor contributing to market growth is the increasing focus on environmental sustainability, where trench drains are designed to minimize water pollution and enhance groundwater recharge. The introduction of innovative materials, such as polymer concrete and stainless steel, has also improved the durability and aesthetic appeal of trench drains, making them a preferred choice in various applications.

Key Highlights of the Market

• The global trench drains market is projected to reach USD 2.5 billion by 2035.
• Urbanization and population growth are primary drivers of market demand.
• Technological advancements in materials are enhancing product performance.
• The rising focus on environmental sustainability supports market growth.
• Significant investments in infrastructure development worldwide are boosting market opportunities.

By Product Type

Polymer Concrete Trench Drains:

Polymer concrete trench drains are gaining momentum due to their lightweight properties and corrosion resistance, making them suitable for a wide range of applications. These drains offer excellent hydraulic performance and durability, which are crucial in areas subjected to heavy traffic and harsh environmental conditions. The increasing adoption of polymer concrete trench drains in commercial and industrial settings is bolstered by their ability to withstand extreme weather conditions, ensuring efficient drainage all year round. Furthermore, advancements in polymer technology have led to the development of high-strength materials that enhance the overall lifespan of these drains. This segment is expected to witness substantial growth as industries prioritize long-lasting and cost-effective drainage solutions.

Stainless Steel Trench Drains:

Stainless steel trench drains are often favored for their aesthetic appeal and high resistance to corrosion, making them ideal for applications in food processing, pharmaceutical, and commercial kitchens. The hygienic properties of stainless steel reduce the risk of contamination, making it a preferred choice in environments where cleanliness is paramount. Additionally, the sleek design of stainless steel trench drains enhances the overall appearance of the installation area, appealing to architects and designers. The demand for stainless steel trench drains is expected to surge as industries focus on improving sanitation while maintaining a modern aesthetic in their facilities. This segment's growth is further fueled by the increasing emphasis on compliance with health and safety regulations.

Fiberglass Trench Drains:

Fiberglass trench drains are lightweight and highly resilient, providing a practical solution for various drainage needs. These drains are particularly well-suited for residential applications due to their ease of installation and cost-effectiveness. The non-corrosive nature of fiberglass makes it an excellent option for environments exposed to chemicals or saline conditions. As the trend for sustainable building materials rises, fiberglass trench drains are gaining traction, especially in green construction projects. The adaptability of fiberglass allows for customizable designs, catering to unique landscaping and drainage requirements, thus contributing to the segment's anticipated growth in the residential market.

Cast Iron Trench Drains:

Cast iron trench drains are renowned for their durability and strength, making them ideal for heavy-duty applications, particularly in industrial and municipal settings. The ability of cast iron to withstand extreme loads and traffic makes it a go-to option for roadways, parking lots, and other high-traffic areas. Additionally, cast iron trench drains can be designed with a variety of grating options, enhancing their functionality while also allowing for aesthetic customization. The longevity of cast iron products, coupled with their ability to endure harsh weather conditions, positions them favorably in the market. Despite the higher upfront costs associated with cast iron trench drains, their long-term performance and low maintenance needs make them a worthwhile investment for many infrastructure projects.

Plastic Trench Drains:

Plastic trench drains are increasingly being utilized due to their lightweight nature and resistance to corrosion. These drains are particularly popular in residential applications, where ease of installation and affordability are significant considerations. The versatility of plastic allows for different designs and configurations, making them suitable for various drainage needs. Furthermore, advancements in plastic materials have led to the development of heavier-duty products that can withstand moderate traffic loads. The growth of plastic trench drains is expected to continue as homeowners seek effective and economical drainage solutions for their properties, particularly in areas prone to flooding.

By Application

Industrial:

The industrial segment is a major driver of the trench drains market, as industries require robust and efficient drainage systems to manage wastewater and prevent flooding in manufacturing facilities. Trench drains are critical in environments such as factories, warehouses, and processing plants, where large volumes of water must be managed effectively. The increasing regulatory pressures to maintain environmental standards and manage effluent discharge are propelling the demand for trench drains in this sector. Additionally, the rising trend of automation and modernization of industrial facilities further enhances the need for reliable drainage systems that can support advanced manufacturing processes. As industries continue to evolve, the integration of trench drains is expected to become even more prevalent to ensure operational efficiency and compliance with regulations.

Commercial:

The commercial application of trench drains is expanding rapidly, driven by the growth of retail spaces, shopping centers, and office buildings. These drains play a vital role in maintaining proper drainage in areas that experience significant foot and vehicular traffic. With the increase in construction activities within the commercial sector, the demand for aesthetically pleasing and functional trench drain solutions is on the rise. Furthermore, the need for effective drainage systems to manage stormwater runoff in urban areas is prompting developers to incorporate trench drains into their designs. The ability of trench drains to enhance the safety and functionality of commercial spaces by preventing water accumulation is making them indispensable in modern construction projects.

Residential:

In the residential sector, trench drains are increasingly recognized for their effectiveness in preventing flooding and managing excess water in yards, driveways, and patios. As homeowners become more aware of the importance of proper drainage systems in maintaining property value and preventing water damage, the demand for trench drains is expected to rise. The versatility of trench drains allows for various installations, from simple drainage solutions to more complex systems that integrate into landscaping designs. Additionally, the trend of building homes in flood-prone areas is contributing to the growth of trench drains in residential applications, as they provide essential protection against water intrusion and flooding. Overall, the residential segment is likely to witness significant growth as drainage systems become a standard feature in home design and construction.

Municipal:

Municipal applications for trench drains are critical in urban planning and infrastructure development, as cities require effective solutions for managing stormwater runoff and preventing flooding in public areas. The implementation of trench drains in roadways, sidewalks, and public parks is essential for ensuring the safety and functionality of urban environments. Increasingly, municipalities are investing in advanced drainage systems to comply with environmental regulations and to upgrade aging infrastructure. Additionally, the rising incidence of extreme weather events, such as heavy rainfall and flooding, is prompting local governments to prioritize the installation of reliable trench drains to protect public spaces and maintain accessibility. As urban populations continue to grow, the demand for efficient drainage solutions in municipal applications is expected to remain strong.

Transportation:

The transportation sector is another significant application area for trench drains, particularly in road and highway construction projects. Trench drains are essential for managing water runoff and preventing flooding on roadways, which can pose serious safety hazards for motorists. The need for proper drainage systems is further amplified by the increasing vehicular traffic and the demand for durable infrastructure. Trench drains can be strategically placed at critical points in transportation networks to ensure the efficient flow of water away from road surfaces. Additionally, with the growing emphasis on sustainable transportation infrastructure, the use of trench drains that minimize environmental impact is becoming a priority for many transportation projects. This segment is poised for growth as governments and agencies invest in modernizing transportation systems to enhance safety and resilience.

By Distribution Channel

Direct Sales:

Direct sales represent a significant distribution channel for trench drains, as manufacturers often sell their products directly to contractors, builders, and municipalities. This channel allows for better communication between manufacturers and end-users, ensuring that specific drainage needs are addressed effectively. Additionally, direct sales enable manufacturers to maintain control over pricing and product quality, which can be crucial in competitive markets. By engaging directly with customers, companies can provide tailored solutions that enhance customer satisfaction and foster long-term relationships. As the trend towards customized drainage solutions continues, the direct sales channel is likely to grow, facilitating efficient distribution of trench drains.

Distributor Sales:

Distributor sales are another vital channel in the trench drains market, providing a broader reach for manufacturers and ensuring that products are available across various regions. Distributors often have established networks and relationships with contractors and construction firms, enabling faster and more efficient sales processes. This channel is particularly beneficial for manufacturers looking to penetrate new markets or expand their product offerings without significant investment in infrastructure. Distributors also play a crucial role in inventory management and logistics, helping to streamline the supply chain. As the demand for trench drains continues to rise, distributor sales are expected to remain a key component of the market strategy for many companies.

Online Retail:

Online retail is rapidly gaining traction as a distribution channel for trench drains, driven by the increasing shift towards e-commerce and digital purchasing platforms. This channel offers consumers the convenience of browsing products from the comfort of their homes, allowing for easy comparison of features and prices. Online retail platforms provide manufacturers with a unique opportunity to reach a larger audience, including DIY homeowners, contractors, and small businesses. Furthermore, the ability to showcase detailed product specifications, installation guides, and customer reviews enhances the purchasing experience, empowering consumers to make informed decisions. As e-commerce continues to grow, online retail is expected to become an increasingly significant channel for trench drain sales.

By Material Type

Concrete:

Concrete trench drains are widely used due to their strength and versatility, providing an effective solution for various drainage needs. The durability of concrete makes it suitable for high-traffic areas, ensuring long-lasting performance even under challenging conditions. These drains can be customized to fit specific application requirements, making them adaptable for different environments. Furthermore, concrete trench drains can be designed to blend seamlessly with surrounding landscapes, enhancing aesthetic appeal while maintaining functionality. The segment is expected to grow as industries increasingly prioritize robust drainage solutions that offer both reliability and cost-effectiveness.

Steel:

Steel trench drains, particularly those made from stainless steel, are known for their strength and resistance to corrosion, making them ideal for environments that require high durability and hygiene, such as food processing and pharmaceutical facilities. Steel offers a sleek appearance, which appeals to modern architecture, allowing for visually appealing installations. The growing demand for steel trench drains in both commercial and industrial applications is driven by their ability to withstand heavy loads and provide effective drainage solutions. As industries continue to emphasize cleanliness and operational efficiency, the demand for steel trench drains is expected to rise.

Polymer:

Polymer trench drains are gaining popularity due to their lightweight properties and resistance to various environmental factors, such as corrosion and chemicals. This material offers an excellent balance of performance and cost, making it suitable for both residential and commercial applications. The flexibility of polymer allows for various designs and configurations, catering to specific drainage needs. As the trend towards sustainable building materials continues, polymer trench drains are positioned favorably in the market. The growth of this segment is expected to be bolstered by increased awareness of environmentally friendly construction practices.

Fiberglass:

Fiberglass trench drains are an emerging option in the market, valued for their lightweight and durable characteristics. The non-corrosive nature of fiberglass makes it an excellent choice for applications exposed to chemicals or harsh environments. These drains are particularly well-suited for residential applications due to their cost-effectiveness and ease of installation. The adaptability of fiberglass allows for customizable designs that can enhance landscaping while providing effective drainage solutions. As more homeowners and developers recognize the benefits of fiberglass trench drains, this segment is likely to experience substantial growth in the coming years.

Cast Iron:

Cast iron trench drains are renowned for their exceptional durability and strength, making them ideal for heavy-duty applications in industrial and municipal settings. The ability of cast iron to withstand extreme loads and harsh weather conditions positions it as a top choice for infrastructure projects, particularly in high-traffic areas such as roadways and parking lots. Despite the higher initial costs associated with cast iron products, their longevity and low maintenance needs make them a preferred option for many developers and contractors. The growth of this segment is expected to continue as the demand for robust and reliable drainage solutions increases in various sectors.

By Region

The North American trench drains market is anticipated to lead the global market, accounting for approximately 30% of the total market share by 2035. The growth in this region is fueled by significant investments in infrastructure development, as well as stringent regulations surrounding stormwater management and environmental sustainability. The demand for trench drains in commercial and industrial applications is robust, driven by the increasing focus on maintaining safe and functional spaces. Moreover, innovative product offerings, particularly in the polymer and stainless steel categories, are enhancing overall market dynamics. The North American market is projected to grow at a CAGR of about 7.2%, reflecting the region's commitment to modernizing its drainage systems.

In Europe, the trench drains market is also expected to witness significant growth, driven by rising urbanization and stringent environmental regulations. The region is projected to hold a market share of approximately 25% by 2035, with increasing demand for effective drainage solutions in both residential and commercial sectors. The European market is characterized by a strong focus on sustainable construction practices, which is boosting the adoption of advanced trench drain systems. Additionally, countries such as Germany, the UK, and France are leading the way in adopting innovative drainage solutions, further solidifying Europe's position in the global trench drains market.

Opportunities

The trench drains market presents numerous opportunities for growth, particularly as urbanization continues to accelerate worldwide. As cities expand, the need for efficient stormwater management solutions becomes increasingly critical. This creates a demand for innovative and customizable drainage systems that can adapt to different environments and applications. Furthermore, with the increased focus on sustainable construction, manufacturers have the opportunity to develop trench drains that utilize eco-friendly materials and technologies. The integration of smart technologies, such as sensors and IoT-enabled systems, into drainage solutions can also enhance performance and provide valuable data for urban planners and infrastructure managers. These opportunities position manufacturers and service providers to capitalize on the evolving market landscape.

Additionally, the growing awareness of climate change impacts, such as extreme weather events, is prompting governments and municipalities to prioritize investments in infrastructure that can withstand these challenges. This shift presents an opportunity for companies in the trench drains market to provide solutions that enhance resilience and adaptability in urban environments. Collaborative partnerships between manufacturers, contractors, and governmental agencies can further drive innovation and expand market reach. As the demand for effective drainage systems continues to rise, companies that position themselves strategically to leverage these opportunities will likely experience substantial growth in the coming years.

Threats

One of the primary threats to the trench drains market is the intense competition among manufacturers, which can lead to price wars and reduced profit margins. As the market continues to grow, new entrants may emerge, further saturating the landscape and intensifying competition. Additionally, the availability of alternative drainage solutions, such as surface drains and permeable pavements, may pose a challenge to trench drain adoption. These alternatives can sometimes offer lower installation costs or less complex designs, making them attractive options for certain projects. As such, manufacturers need to continuously innovate and differentiate their products to maintain a competitive edge in the market.

Another potential restraining factor in the trench drains market is the fluctuating costs of raw materials, which can impact production budgets and pricing strategies. Factors such as tariff regulations, supply chain disruptions, and environmental policies can all contribute to increased material costs, affecting overall profitability. Furthermore, the regulatory landscape surrounding drainage systems can vary significantly between regions, which may create challenges in terms of compliance and market entry for manufacturers. Companies must remain adaptable and prepared to navigate these challenges to ensure sustained growth in the trench drains market.

Competitor Outlook

• ACO Group
• Friedrichs GmbH
• Dashboard Drainage Systems
• Hancor, Inc.
• Neenah Foundry Company
• Polymer Concrete Systems
• StormTech, Inc.
• Hydro International
• Proline Drain Technologies
• Advanced Drainage Systems, Inc.
• Source 1 Environmental, Inc.
• Global Drainage Industries
• Drainage Superstore
• Trenchdrain.com
• Permavoid

The competitive landscape of the trench drains market is characterized by a diverse group of manufacturers and suppliers, each striving to establish their presence and cater to various segments of the market. Companies are increasingly focusing on research and development to innovate and create products that meet the specific needs of end-users. This focus on innovation is accompanied by strategic partnerships and collaborations aimed at enhancing product offerings and expanding market reach. Additionally, market players are adopting aggressive marketing strategies to differentiate their products and strengthen brand recognition in a competitive environment. Companies are also leveraging digital platforms to improve customer engagement and streamline the purchasing process.

Among the major players in the trench drains market, ACO Group is a prominent name, recognized for its comprehensive range of drainage solutions, including polymer concrete and stainless steel products. The company emphasizes environmental sustainability and technological innovation in its product development, positioning itself as a leader in the market. Similarly, Advanced Drainage Systems, Inc. is noted for its wide array of drainage solutions, focusing on polymer and plastic products that cater to both residential and commercial applications. With a commitment to quality and customer satisfaction, these companies have played a pivotal role in shaping the trench drains market and driving growth through their extensive product portfolios.

Neenah Foundry Company is another key player in the market, known for its high-quality cast iron trench drains that are widely used in municipal and industrial applications. The company's reputation for durability and performance has solidified its position as a trusted supplier in the industry. Furthermore, manufacturers like StormTech, Inc. and Hydro International are recognized for their innovative approach to drainage solutions, offering products that integrate advanced technologies for improved performance. As the trench drains market continues to evolve, these companies are well-positioned to adapt to changing customer demands and capitalize on emerging opportunities in the industry.

• 1 Appendix

  • 1.1 List of Tables
  • 1.2 List of Figures

• 2 Introduction

  • 2.1 Market Definition
  • 2.2 Scope of the Report
  • 2.3 Study Assumptions
  • 2.4 Base Currency & Forecast Periods

• 3 Market Dynamics

  • 3.1 Market Growth Factors
  • 3.2 Economic & Global Events
  • 3.3 Innovation Trends
  • 3.4 Supply Chain Analysis

• 4 Consumer Behavior

  • 4.1 Market Trends
  • 4.2 Pricing Analysis
  • 4.3 Buyer Insights

• 5 Key Player Profiles

  • 5.1 ACO Group
    • 5.1.1 Business Overview
    • 5.1.2 Products & Services
    • 5.1.3 Financials
    • 5.1.4 Recent Developments
    • 5.1.5 SWOT Analysis
  • 5.2 Permavoid
    • 5.2.1 Business Overview
    • 5.2.2 Products & Services
    • 5.2.3 Financials
    • 5.2.4 Recent Developments
    • 5.2.5 SWOT Analysis
  • 5.3 Hancor, Inc.
    • 5.3.1 Business Overview
    • 5.3.2 Products & Services
    • 5.3.3 Financials
    • 5.3.4 Recent Developments
    • 5.3.5 SWOT Analysis
  • 5.4 Friedrichs GmbH
    • 5.4.1 Business Overview
    • 5.4.2 Products & Services
    • 5.4.3 Financials
    • 5.4.4 Recent Developments
    • 5.4.5 SWOT Analysis
  • 5.5 StormTech, Inc.
    • 5.5.1 Business Overview
    • 5.5.2 Products & Services
    • 5.5.3 Financials
    • 5.5.4 Recent Developments
    • 5.5.5 SWOT Analysis
  • 5.6 Trenchdrain.com
    • 5.6.1 Business Overview
    • 5.6.2 Products & Services
    • 5.6.3 Financials
    • 5.6.4 Recent Developments
    • 5.6.5 SWOT Analysis
  • 5.7 Drainage Superstore
    • 5.7.1 Business Overview
    • 5.7.2 Products & Services
    • 5.7.3 Financials
    • 5.7.4 Recent Developments
    • 5.7.5 SWOT Analysis
  • 5.8 Hydro International
    • 5.8.1 Business Overview
    • 5.8.2 Products & Services
    • 5.8.3 Financials
    • 5.8.4 Recent Developments
    • 5.8.5 SWOT Analysis
  • 5.9 Neenah Foundry Company
    • 5.9.1 Business Overview
    • 5.9.2 Products & Services
    • 5.9.3 Financials
    • 5.9.4 Recent Developments
    • 5.9.5 SWOT Analysis
  • 5.10 Polymer Concrete Systems
    • 5.10.1 Business Overview
    • 5.10.2 Products & Services
    • 5.10.3 Financials
    • 5.10.4 Recent Developments
    • 5.10.5 SWOT Analysis
  • 5.11 Dashboard Drainage Systems
    • 5.11.1 Business Overview
    • 5.11.2 Products & Services
    • 5.11.3 Financials
    • 5.11.4 Recent Developments
    • 5.11.5 SWOT Analysis
  • 5.12 Global Drainage Industries
    • 5.12.1 Business Overview
    • 5.12.2 Products & Services
    • 5.12.3 Financials
    • 5.12.4 Recent Developments
    • 5.12.5 SWOT Analysis
  • 5.13 Proline Drain Technologies
    • 5.13.1 Business Overview
    • 5.13.2 Products & Services
    • 5.13.3 Financials
    • 5.13.4 Recent Developments
    • 5.13.5 SWOT Analysis
  • 5.14 Source 1 Environmental, Inc.
    • 5.14.1 Business Overview
    • 5.14.2 Products & Services
    • 5.14.3 Financials
    • 5.14.4 Recent Developments
    • 5.14.5 SWOT Analysis
  • 5.15 Advanced Drainage Systems, Inc.
    • 5.15.1 Business Overview
    • 5.15.2 Products & Services
    • 5.15.3 Financials
    • 5.15.4 Recent Developments
    • 5.15.5 SWOT Analysis

• 6 Market Segmentation

  • 6.1 Trench Drains Market, By Application
    • 6.1.1 Industrial
    • 6.1.2 Commercial
    • 6.1.3 Residential
    • 6.1.4 Municipal
    • 6.1.5 Transportation
  • 6.2 Trench Drains Market, By Product Type
    • 6.2.1 Polymer Concrete Trench Drains
    • 6.2.2 Stainless Steel Trench Drains
    • 6.2.3 Fiberglass Trench Drains
    • 6.2.4 Cast Iron Trench Drains
    • 6.2.5 Plastic Trench Drains
  • 6.3 Trench Drains Market, By Material Type
    • 6.3.1 Concrete
    • 6.3.2 Steel
    • 6.3.3 Polymer
    • 6.3.4 Fiberglass
    • 6.3.5 Cast Iron
  • 6.4 Trench Drains Market, By Distribution Channel
    • 6.4.1 Direct Sales
    • 6.4.2 Distributor Sales
    • 6.4.3 Online Retail

• 7 Competitive Analysis

  • 7.1 Key Player Comparison
  • 7.2 Market Share Analysis
  • 7.3 Investment Trends
  • 7.4 SWOT Analysis

• 8 Research Methodology

  • 8.1 Analysis Design
  • 8.2 Research Phases
  • 8.3 Study Timeline

• 9 Future Market Outlook

  • 9.1 Growth Forecast
  • 9.2 Market Evolution

• 10 Geographical Overview

  • 10.1 Europe - Market Analysis
    • 10.1.1 By Country
      • 10.1.1.1 UK
      • 10.1.1.2 France
      • 10.1.1.3 Germany
      • 10.1.1.4 Spain
      • 10.1.1.5 Italy
  • 10.2 Asia Pacific - Market Analysis
    • 10.2.1 By Country
      • 10.2.1.1 India
      • 10.2.1.2 China
      • 10.2.1.3 Japan
      • 10.2.1.4 South Korea
  • 10.3 Trench Drains Market by Region
  • 10.4 Latin America - Market Analysis
    • 10.4.1 By Country
      • 10.4.1.1 Brazil
      • 10.4.1.2 Argentina
      • 10.4.1.3 Mexico
  • 10.5 North America - Market Analysis
    • 10.5.1 By Country
      • 10.5.1.1 USA
      • 10.5.1.2 Canada
  • 10.6 Middle East & Africa - Market Analysis
    • 10.6.1 By Country
      • 10.6.1.1 Middle East
      • 10.6.1.2 Africa

• 11 Global Economic Factors

  • 11.1 Inflation Impact
  • 11.2 Trade Policies

• 12 Technology & Innovation

  • 12.1 Emerging Technologies
  • 12.2 AI & Digital Trends
  • 12.3 Patent Research

• 13 Investment & Market Growth

  • 13.1 Funding Trends
  • 13.2 Future Market Projections

• 14 Market Overview & Key Insights

  • 14.1 Executive Summary
  • 14.2 Key Trends
  • 14.3 Market Challenges
  • 14.4 Regulatory Landscape

Segments Analyzed in the Report

The global Trench Drains market is categorized based on

By Product Type

• Polymer Concrete Trench Drains
• Stainless Steel Trench Drains
• Fiberglass Trench Drains
• Cast Iron Trench Drains
• Plastic Trench Drains

By Application

• Industrial
• Commercial
• Residential
• Municipal
• Transportation

By Distribution Channel

• Direct Sales
• Distributor Sales
• Online Retail

By Material Type

• Concrete
• Steel
• Polymer
• Fiberglass
• Cast Iron

By Region

• North America
• Europe
• Asia Pacific
• Latin America
• Middle East & Africa

Key Players

• ACO Group
• Friedrichs GmbH
• Dashboard Drainage Systems
• Hancor, Inc.
• Neenah Foundry Company
• Polymer Concrete Systems
• StormTech, Inc.
• Hydro International
• Proline Drain Technologies
• Advanced Drainage Systems, Inc.
• Source 1 Environmental, Inc.
• Global Drainage Industries
• Drainage Superstore
• Trenchdrain.com
• Permavoid