| American Highway Products Ltd. -- Manufacture manhole risers, flexible rings, and cover sealing products . Includes a product overview and photographs. |
| Balco Inc. -- Manufacture trench grates and frames. Includes product specifications and CAD drawings . |
| Bass and Hays Foundry Inc. -- Wholesale and retail sales of cast and ductile iron castings. Products include manhole, inlet and other drainage covers. Includes online drawings and specifications. |
| Bengal Iron Corporation -- Manufacture and export grey iron castings including municipal castings, manhole covers, grates, hydrants and other industrial castings. India. |
| Crescent Foundry Company Pvt. Ltd. -- Manufacture gray iron and ductile iron castings used in water distribution, drainage, and sewerage. Includes product specifications and photographs. |
| Deeter Foundry, Inc. -- Produce gray iron castings for the construction industry. Product line includes manhole frames and covers, storm sewer inlet frames, grates and curbs, trench grating and tree grates. |
| Doug Meadows Company -- Manufacturer's representative of manhole cover extractors, manhole risers and other products involved in sewage and water municipalities. |
| Ducast Factory L.L.C. -- Produce manhole , ductile iron , and cast iron covers, ductile iron and cast iron gratings, gully , access and recess covers. Dubai . |
| Feing Tai (Handan) Alloy Casting Co., Ltd. -- Manufactures and supplies ductile and grey iron manhole covers, grates, pipes, fittings and ornamental parts. |
| Gaozit Enterprise -- Manufacturer of cast iron products, which mainly include: cast iron manhole covers and cast iron pipe fittings . China . |
| Gatic -- Manufacture access covers, grates and frames . Product information, quality testing, contacts, industry news, feedback and technical information. |
| GU International -- Manufacture manhole systems and selfleveling frames and covers. Includes downloadable product catalog and Autocad drawings. |
| Hermelock (Malta) Ltd -- Manufacturers of cast lightweight, recyclable composite material manhole covers. Withstands loading of up to 40 tonnes. |
| Hern Iron Works 1991, Inc. -- Manufacture a range of covers, frames and grates. |
| Khaya Magica -- Manufacture anti-slip plastic steps for use where corrosion presents a problem such as concrete and brick sewers, stormwater manholes, and reservoirs. |
| LeBaron Foundry Inc -- Manufacturer of municipal castings, frames, manhole covers and grates . |
| Manhole Systems Inc. -- Manufacturers of adjustable manhole riser rings, manhole cover extension rings, and monument and valve box risers for highway paving projects. |
| Nandikeshwari Iron Foundry (P) Ltd -- Manufacturers of sanitary, water works, industrial, ornamental and agricultural castings. Products include manholes rings and covers, grates and frames and manhole steps. India . |
| Neenah Foundry Company -- Supplier of municipal castings, including manhole frames, lids and grates, trench castings and decorative tree grates. |
| Zhong Bao Foundries Co. Ltd -- Chinese manufacturer and supplier of aluminum, grey and ductile iron sand-casting products such as lamppost, mailbox, bench siding, fence, manhole covers and frames. |
