site-services
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Downstream
Downstream is a Dallas-based online marketplace that lets construction contractors rent equipment, book waste hauling, and order jobsite services - dumpsters, porta potties, scissor lifts, forklifts, fencing, mobile offices - from a nationwide network of vetted suppliers. The platform delivers real-time pricing, multiple competing quotes per job, consolidated billing, Net 30 payment terms, and AI agents that read a contractor's rollout sheets or invoices to procure automatically. Founded in 2022 (originally as Trash Gurus), the company raised an $8M Series A in November 2025 co-led by Brick & Mortar Ventures and Moneta Ventures.
Zachary Irwin
Zachary Irwin is the co-founder and CEO of Downstream, a Dallas-based marketplace that lets contractors book equipment rentals, dumpsters, portable toilets, and site services with a few taps - the way you might order a pizza. Started in 2022 as 'Trash Gurus' and rebuilt into an AI-driven procurement platform with 100,000+ listings, Downstream raised an $8M Series A in November 2025 co-led by Brick & Mortar Ventures and Moneta Ventures. Irwin came to construction's least glamorous corner from an unlikely place: years as a healthcare-software (Epic) consultant building oncology and pharmacy systems across 22 states.