Ironsmith
Supplier of tree grates, tree guards, bollards and trench grates for the construction and design industry.
http://ironsmith.cc/

Neenah Foundry Company
Supplier of municipal castings, including manhole frames, lids and grates, trench castings and decorative tree grates.
http://www.nfco.com/

Deeter Foundry, Inc.
Since 1945 Deeter Foundry, Inc. has been producing gray iron castings for all segments of the construction industry. Deeter's construction casting product line includes manhole frames and covers, storm sewer inlet frames, grates and curbs, trench grating and tree grates. Deeter also produces a wide variety of special application construction castings. These products are utilized in waste treatment plants, airports, telephone and electrical construction projects.
http://www.deeter.com/

Thompson Fabricating Co.
Manufactures aluminum handrails, ladders, hatches and grates.
http://www.tfco.com/

LeBaron Foundry Inc
Manufacturer of municipal castings, frames, manhole covers and grates .
http://www.lebaronfoundry.com/

Balco Inc.
Balco architectural products: Expansion Joints, Photoluminescent Exit Path Markings, Stair Nosings, Floor Mats Grids, Trench Access Covers, Grates, Frames.
http://www.balcousa.com/

Hern Iron Works 1991, Inc.
Hern Iron Foundry established since the '70s; we cast iron sprockets, manhole covers, reproduction civil war cannons
http://www.hernironworks.com/municipal.html

Grate Technologies, Inc.
Manufacturer of PVC swimming pool drainage grates, deck drains, and fiberglass gutter systems.
http://www.gratetech.com

Sitescapes Inc.
SiteScapes is a designer of steel furniture for urban landscaping and provides site furnishings, outdoor furniture and commercial grade site ammenities including steel park benches, trash receptacles, bicycle parking racks, ash urns, tree grates, tables and chairs.
http://www.sitescapesonline.com/

Feing Tai (Handan) Alloy Casting Co., Ltd.
Manufactures and supplies ductile and grey iron manhole covers, grates, pipes, fittings and ornamental parts.
http://www.fengtaicasting.com/