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| Company | What they do | Location | Size | Hiring |
|---|---|---|---|---|
Greenfibergreenfiber.com HP  KW KA |
Greenfiber is the largest manufacturer of cellulose insulation and fire and sound products, with manufacturing plants located thro | Charlotte, North Carolina | 51-200 | — |
Celotexcelotex.co.uk |
Celotex (now SOPREMA UK, as of 1st January 2026) is a PIR and XPS insulation manufacturer and supplier based in Ipswich, Suffolk, | Ipswich, Suffolk | 51-200 | — |
Rigidinsulationrigidinsulation.com |
— | — | — | |
John Manson & Associatesjohnmanson.com |
Design | Chicago, Illinois | 1-10 | — |
Owens Corningowenscorning.com  JAJWJB |
Owens Corning is a building products leader, founded in 1938 and based in Toledo, Ohio, that supplies residential and commercial b | Toledo, Ohio | 5000+ | — |
Icynene Inc.icynene.com |
Icynene Inc. is a manufacturer of high-performance spray foam insulation, offering a complete portfolio of Icynene spray foam solu | Downey, California | 11-50 | — |
Knauf Insulationknaufinsulation.com |
Knauf Insulation is a global manufacturer of mineral wool insulation for buildings, producing glass mineral wool, rock mineral woo | — | — | — |
USG Corporationusg.com JT  RC IL |
USG Corporation is a building products manufacturer headquartered in Chicago, producing wall, ceiling, flooring, sheathing, and ro | Chicago, Illinois | 5000+ | — |
ROCKWOOLrockwool.com  IZPSED |
ROCKWOOL is a manufacturer of high-performance stone wool insulation products for the construction industry, offering rigid boards | Roermond, Limburg | 201-1000 | — |
Saint Gobainsaint-gobain.com |
— | — | — | |
Foaminsulationfoaminsulation.com |
— | — | — | |
Insulation4Lessinsulation4less.com |
Insulation4Less is a factory-direct online retailer of insulation products, primarily Prodex Total reflective insulation, selling | Houston, Texas | 1-10 | — |
BamCorebamcore.com |
BamCore (now gbt.BUILD) is a manufacturer of rapid-install, custom-fabricated panelized vertical framing systems for low-rise buil | Hines, Oregon | 11-50 | — |
Myecoinsulationmyecoinsulation.com |
Eco Insulation is a Utah-based residential and commercial insulation and energy-efficiency contractor offering fiberglass insulati | St. George, Utah | 11-50 | — |
Vartegavartega.com |
Vartega is a chemical recycling company based in Denver, Colorado, that uses patented solvolysis to recycle waste carbon fiber pre | Denver, Colorado | 11-50 | — |
The Paper Tigerspapertigers.com |
The Paper Tigers is a service-oriented paper and secondary fiber brokerage company headquartered in Schaumburg, Illinois, that buy | Northbrook, Illinois | 11-50 | — |
Carolina Plastics Inccarolinaplastics.com |
Software Development | Clinton, North Carolina | 11-50 | — |
Rmaxrmax.com |
Rmax is a manufacturer of polyiso insulation products and engineered energy-efficiency solutions for commercial construction, oper | Lewisville, Texas | 51-200 | — |
Recticel Insulationrecticelinsulation.com |
Recticel Insulation is a Belgian insulation manufacturer and distributor of PIR and vacuum insulation panels for professional cons | Wevelgem, Flanders | 51-200 | — |
Ccinsulccinsul.com |
Central California Insulation is a residential and commercial insulation contractor operating since 1958 in San Jose, California, | San Jose, California | 1-10 | — |
Andersoninsulandersoninsul.com |
Construction | Abington, Massachusetts | 11-50 | — |
Earthfirstrecycleearthfirstrecycle.com |
Earth First Recycling, Inc. is a Reno, Nevada recycling center that buys and sells pallets, cardboard, and plastic, established in | Sparks, Nevada | 1-10 | — |
Bay Insulation Systemsbayinsulation.com |
Bay Insulation Systems is the largest laminator and distributor of metal building insulation in North America, producing custom-la | Green Bay, Wisconsin | 51-200 | — |
Bonded Logic Inc.bondedlogic.com |
Bonded Logic Inc. is a recycling and manufacturing company based in Chandler, Arizona, that markets and manufactures patented ther | Chandler, Arizona | 51-200 | — |
Hexashexas.com |
Hexas is a regenerative plant-based raw materials company that produces XanoFiber™ from its proprietary XanoGrass™ giant perennial | Olympia, Washington | 1-10 | — |
Interwest Paperinterwestpaper.com |
Interwest Paper is a recycling and material transportation service operating since 1979, serving Utah, Nevada, Wyoming, Idaho, Col | South Salt Lake, Utah | 11-50 | — |
Arango Insulationarangoinsulation.com |
Arango Insulation is a family-owned, 25+ year insulation and air-sealing contractor serving residential and commercial projects fr | Fayetteville, Georgia | 11-50 | — |
Fisher Recyclingfisherrecycling.com |
Fisher Recycling is a family-owned waste hauler and glass recycling operator based in North Charleston, South Carolina, that colle | North Charleston, South Carolina | 1-10 | — |
Insulation Labsinsulationlabs.com |
Insulation Labs is a licensed C-2 insulation installation contractor serving the greater Los Angeles area, offering attic cleaning | Van Nuys, California | 11-50 | — |
Main Street Fibersmainstreetfibers.com |
Main Street Fibers is a recycling and CRV processing company operating a 15-scale facility in Guysville, Ohio, that purchases over | Guysville, Ohio | 11-50 | — |
| Run live for more | ||||
Greenfiber is the largest manufacturer of cellulose insulation and fire and sound products, with manufacturing plants located throughout the United States and products sold to contractors and building supply retailers in the U.S. and Canada.
Companies like Greenfiber include Celotex, Rigidinsulation, John Manson & Associates, Owens Corning, Icynene Inc.. See the full list of 24 competitors and alternatives above.
Greenfiber has approximately 51-200 employees and is in the Wholesale Building Materials industry.
Greenfiber is headquartered in Charlotte, North Carolina.
Greenfiber operates in the Wholesale Building Materials industry.
Key decision-makers and buying contacts at Greenfiber are listed above, including leaders across executive, finance, sales and operations.