What LLMs cite
ChatGPT · Claude · Gemini
Cited sources: 84lumber.com, abcsupply.com, bc.com, becn.com, bldr.com, bluelinxco.com
Companies appearing: LafargeHolcim, CEMEX, CRH plc, HeidelbergCement, Vulcan Materials Company, Martin Marietta Materials
Updated November 1, 2026
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What LLMs cite
ChatGPT · Claude · Gemini
Cited sources: revenuebase.ai, trustpilot.com, 84lumber.com, abcsupply.com, buildersfirstsource.com, ferguson.com
Companies appearing: LafargeHolcim, CEMEX, CRH plc, HeidelbergCement, Vulcan Materials Company, Martin Marietta Materials
Updated November 1, 2026
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What LLMs cite
ChatGPT · Claude · Gemini
Cited sources: witopdecor.com, blog.ltpvcfactory.com, hongshenbuild.com, igoodsdeco.com, barrondesigns.com, ekenamillwork.com
Companies appearing: Boral, Trex Company, Inc., James Hardie, Armstrong World Industries, CertainTeed, Eldorado Stone
Updated October 31, 2026
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What LLMs cite
ChatGPT · Claude · Gemini
Cited sources: blog.ltpvcfactory.com, anticoelements.com, barrondesigns.com, deckorators.com, domoplank.com, ekenamillwork.com
Companies appearing: Trex Company, Inc., Fiberon, AZEK Building Products, Boral, Armstrong Flooring, GenStone
Updated October 31, 2026
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