design-build
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ICON Is Selling the Machine That Prints the Walls
After years spent proving that a robot can print a neighborhood, ICON is putting its construction system in other builders' hands. The harder test starts now: turning spectacular machinery into ordinary infrastructure.
Granite Construction
Granite Construction does not merely pave the road. It can quarry the stone, mix the asphalt, help redesign the job and then build it - a century-old loop now powering a $7 billion project book.
Delve Underground
Delve Underground is an employee-owned heavy civil and tunnel engineering firm that designs, builds, and rehabilitates the underground infrastructure behind transit systems, water and wastewater networks, and energy projects. Founded in 1954 as Jacobs Associates and rebranded from McMillen Jacobs Associates in late 2022, the firm brings roughly 350 specialists across 21-25 offices in the U.S., Canada, Australia, and New Zealand to some of the most technically demanding tunnels, shafts, and deep foundations in North America and Australasia.
Aecore
Aecore is a technology-enabled commercial general contractor based in San Jose, California, with a second office in Nashville, Tennessee. Founded by Casey Bell and Anthony Cirinelli and backed by Y Combinator (S17) and CEMEX Ventures, the company pairs an in-house team of designers, project managers, and software engineers with proprietary project-management software to deliver corporate interiors, life-sciences labs, retail buildouts, and building renovations. Its pitch is simple: run construction like a software company, with real-time schedules, transparent budgets, and weekly photo updates so clients always know where their project stands.
California Drywall Co.
California Drywall Co. is one of the largest wall-and-ceiling specialty contractors in the United States, building interiors and exteriors across Northern California since 1946. From its San Jose base it delivers drywall, lath and plaster, metal framing, cold-formed steel engineering, fireproofing, acoustical ceilings, rainscreens and prefabricated wall panels for landmark projects including Apple Park, Levi's Stadium, SFO Terminal 2 and major hospitals. In August 2023 it became a 100% employee-owned company through an ESOP, putting equity in the hands of its roughly 700 team members.
Hathaway Dinwiddie
Hathaway Dinwiddie is a 100% employee-owned general contractor headquartered in San Francisco that has spent more than a century building the landmarks California works, lives, and heals in - from the Salesforce Tower to the Lucas Museum of Narrative Art and more than 10 million square feet of life-science space on the Peninsula. Built on planning, adaptation, and proactive partnership, the firm pairs century-old craft with advanced BIM workflows, LEED-driven sustainability, and an industry-leading safety record.
Rudolph and Sletten
Rudolph and Sletten is a California-based general contractor that has built much of Silicon Valley's physical fabric - from Apple Park and Lucasfilm's Skywalker Ranch to hospitals, research labs and university campuses. Founded in 1959 in a Los Altos garage, the firm pioneered guaranteed-maximum-price, fast-track delivery and grew into one of the West Coast's largest builders of technically complex healthcare, life-sciences and education projects. Now a subsidiary of Tutor Perini, it employs roughly 740 people and reports about $307 million in annual revenue.
Webcor
Webcor is a San Francisco-based commercial general contractor and one of California's largest builders, known for self-performed concrete, finish carpentry and millwork, deep preconstruction and BIM expertise, and a portfolio of landmark projects from the California Academy of Sciences to the Salesforce Transit Center. Founded in 1971 and owned by Japan's Obayashi Corporation since 2007, Webcor pairs craft-trade self-performance with virtual-building technology to deliver complex, sustainable buildings across the state.
Woodard & Curran
Woodard & Curran is a 100% employee-owned environmental engineering and consulting firm founded in 1979 and headquartered in Portland, Maine. With roughly 1,300 employees across 30+ offices in 14 states, the firm integrates engineering, science, design-build, and operations to solve complex water and environmental challenges for municipal, industrial, and government clients. From treating 11.7 billion gallons of drinking water annually to cleaning up Superfund contamination sites, Woodard & Curran positions itself as the firm that takes on the hard problems in water infrastructure and environmental health — not as a contractor but as a long-term partner.