Winner of the CIEEM Best Practice Knowledge Sharing Award 2025Shortlisted in three categories in the Publisher Podcast Awards 2026 and 2025
Constructive VoicesConstructive Voices

Constructive Voices

Reports, articles, and podcasts on the built environment, sustainability and biodiversity

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Ryan Gilliam

Ryan Gilliam

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Ryan Gilliam is co-founder and CEO of Fortera, a low-carbon cement manufacturer focused on paving the way to zero CO2 cement. Gilliam is a serial entrepreneur who has dedicated his career to solving climate issues. Specifically, Gilliam has focused on decarbonising hard-to-abate sectors like cement, energy, and petrochemicals. He has over 100 granted patents focused on electrochemical, chemical, and materials technologies for the beneficial reuse of carbon emissions, green hydrogen production, and more environmentally friendly chemical manufacturing. In addition to his role at Fortera, Gilliam also serves on the Board of Directors of Verdagy, a company he founded that is innovating advanced electrolysis technology for the large-scale production of green hydrogen. "Optimism wins. Solving sustainability challenges like emissions from cement is possible, and there are reasons to be hopeful as companies and industries embrace these changes." — Ryan Gilliam