Circular materials marketplace
Waste less. Build smarter. Join the circular future of construction.
CircularBuild is a donation-first marketplace that keeps surplus materials in motion. Share what's left on your job site, match it with builders in real time, and document the climate impact every donation creates.
2.8M lbsMaterials diverted
640Active donors
3.5 daysAvg. pickup time
Navigate the platform
Move your donations from surplus piles to new builds.
Navigate the tools that help you post available materials, match with crews who need them, and learn how donation logistics stay on schedule.
Explore marketplace
Preview donation-powered inventories and see what the community is sharing right now.
ExploreDonate materials
Post surplus items, schedule pickups, and document every donation in one workflow.
ExploreRead the briefing room
Policy wins, donor spotlights, and the data behind high-impact reuse.
ExploreGet support
FAQs, guidelines, and direct contact with our team.
Explore
Marketplace preview
Explore donation-driven inventories across the network.
Preview a handful of active donations below. Sign in when you're ready to save listings, chat directly with donors, and coordinate pickups.
Stories from the field
Donors and builders proving circular works at scale.
Coordinated pickups, transparent chat threads, and impact-ready reporting keep reuse simple for both sides of the exchange.
Read more storiesClimate Week NYC 2025: How Circular Innovation and Low-Carbon Infrastructure Defined the Conversation
New York City’s annual Climate Week 2025 marked a pivotal moment in global sustainability dialogue. With over 900 events across all five boroughs, this year’s …
Read briefingThe $5 Billion Stadium Dilemma: Can the Chicago Bears Build Green?
When the Chicago Bears released renderings of their proposed $2 billion stadium in Arlington Heights, the spotlight centered on the visuals: sleek glass walls,…
Read briefing
Ready to keep materials in circulation?
Create an account to publish donations, receive real-time interest from builders, and share diversion data with your stakeholders.