Sister Companies

Belco Manufacturing is a custom FRP design/engineering, manufacturing company providing a wide scope of products including tanks, process vessels, piping, ductwork, hoods, dampers, scrubbers, stacks and manholes. (Read More)

Industries served include: Oil and Gas Exploration, Water/Wastewater, Metal and Mining, Chemical Processing, Semiconductor and Power/FGD. Belco provides dependable, cost effective, integrated solutions to their customers. Belco is ASME RTP-1 accredited for the design and supply of tanks, ACMA licensed for FRP dampers and through independent ASTM D2992 testing, Belco can provide FRP piping and ductwork manufactured in accordance with ASTM D2996. Belco Manufacturing operates manufacturing plants in Belton, Texas and Iuka, Mississippi.

Containment Solutions Inc., (CSI), is the largest American manufacturer of fiberglass fuel and water storage tanks for the gasoline retail and commercial markets, the water/wastewater industries, and other related markets. (Read More)

The company offers a comprehensive selection of innovative products for the perpetual storage and handling of hazardous, non-hazardous, flammable, and combustible liquids. Its product line includes aboveground and underground fiberglass storage tanks, aboveground steel vault tanks, oil/water separators, Lube Cube® oil tanks (for safely storing new and used lubrication oils), and fiberglass manholes and wet wells. CSI also operates the only national field service division in the underground tank manufacturing industry, providing a wide range of services to the industries it serves.

For water conscious sustainable building projects, CSI offers the Flowtite® line of storage products for applications including: rainwater harvesting, stormwater collection, potable water, fire protection, onsite septic, grease interceptors, graywater, and cooling towers.

Denali Incorporated had a vision to acquire leading companies in the fragmented Fiberglass Reinforced Plastic (FRP) Industry. The corporate plan was to provide FRP composite solutions that addressed a full scope of capabilities in the areas of corrosive fluids and fumes.

The acquisitions, individual company technology, expertise, project history, and best practices have been leveraged to position Denali as ‘Leaders in FRP Composite Construction for Corrosive Environments’ The vision was implemented in 1994 with the acquisition of our underground storage tank (UST) company, now known as Containment Solutions Incorporated (CSI). Containment Solution’s petroleum storage tank experience dates to the early 1960’s and has supplied more than 300,000 tanks to the market.

Fabricated Plastics Limited., a global leader in the design and manufacture of thermoplastic lined FRP (Armourplastics®), unlined FRP and thermoplastic assemblies for storage tanks, vessels, piping & duct, and corrosion applications. (Read More)

Industries served include: Pulp and Paper, Metals and Mining, Chemical Processing, Food and Drug, Semiconductor, and Power – with a wide range of engineered products such as: scrubber system process design and supply, tanks, piping, ductwork, stacks, acid cooling towers and scrubber internals. Fabricated Plastics Ltd. operates out of its office and manufacturing facility located in Maple (Toronto) Ontario Canada.

Fibra Engineering and Construction S.A., is the South American leader in custom design, engineering, manufacturing and construction of FRP shop tanks, field tanks, piping, ductwork, scrubbers, stacks, chimney liners and process vessels. (Read More)

Additionally, Fibra has significant production capability and equipment in support of its rotational molded polyethylene (PE) tank and custom PE component product lines. Unique to Denali, Fibra S.A. can provide turn-key design, manufacture and installation of non-municipal water and waste water treatment plants typically required in remote industrial and residential areas of South America. With 25 years in the industry, FIBRA has developed a high quality team of professionals and technicians serving corrosion, water storage and agricultural markets worldwide. Fibra’s manufacturing facility and construction division are located in San Bernardo, Santiago, Chile.

Plasti-Fab is a custom FRP design and manufacture company providing a wide scope of products including water control gates/penstocks, flumes, stop logs, scum skimmers, shelters, weirs, and packaged metering manholes. (Read More)

Plasti-Fab is a world class composite products manufacturer focused on flexible manufacturing that solves our customers needs. After decades of manufacturing corrosion resistant equipment for water and wastewater treatment and control, our expertise has expanded into structural composite manufacturing for industry applications.