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Ghilotti Bros., Inc. (GBI) is a family-owned general engineering construction company based in San Rafael, California. Founded in 1914 by James Ghilotti, the company has evolved from a stonemasonry business into one of the largest construction firms in Northern California, employing over 225 people across 11 Bay Area counties. GBI generates annual revenues exceeding $100 million and is committed to quality work and community contributions. GBI offers full-service site development, handling complex projects from pre-construction planning to demolition, grading, paving, and underground utilities. Their expertise includes road construction, sewer rehabilitation, and infrastructure projects that enhance safety and accessibility. The company serves private developers, commercial clients, and public works agencies, with a strong focus on Caltrans projects. GBI is recognized for its teamwork, safety, and efficiency, earning accolades such as NorthBay bizs 2014 BEST Contractor/Builder award.
Knightvest is an industry-leading multifamily investment and management firm known for creating communities of excellence and delivering dependable results that enable investors, employees, and residents to thrive. As a vertically-integrated firm, Knightvest specializes in renovating and repositioning multifamily properties with a unique approach focused on setting a new standard in design-driven quality, executing with operational efficiency, and leading with a people-first culture. Since its founding in 2007, Knightvest has invested over $10 billion to acquire over 55,000 units across high-growth metro areas in Texas, Arizona, the Carolinas, and Florida to become one of the largest apartment owners in the United States.
Pfeifer Roofing Inc. is a family-owned business operating in the greater Willamette Valley since 1978. Chris and Mona Pfeifer started a small family operation four decades ago and we have since grown into one of the largest and most diverse roofing companies in the valley. With the addition of Trever Pfeifer in 2002, the second generation of the family is continuing the tradition of excellence! A licensed residential and commercial general contractor, we install, repair and maintain composition roofing, wood shakes and shingles, metal roofing, and concrete tile roofing, PVC, TPO and BUR flat roofs, continuous gutters and gutter protection systems, as well as Velux premium Skylights and SunTunnels. We strongly believe in continuing education and staying on top of our industrys latest innovations and practices. We are an active member of several industry associations including the National Roofing Contractors Association (NRCA), Western States Roofing Contractors Association, Associated Roofing Contractors of Oregon and SW Washington, Home Builders Association of Marion & Polk Counties, SEDCOR, and Salem Area Chamber of Commerce. We are a member of AGC Associated General Contractors as well as maintaining an A+ rating as a Better Business Bureau Accredited Business. In addition, we hold top-tier certifications with the largest roofing manufacturers in the nation. These credentials recognizes our commitment to technical proficiency, installation excellence, and consistent high quality customer service. We offer prompt, reliable service, take great pride in our craftsmanship and complete customer satisfaction is our number one priority.
Thornton Tomasetti optimizes the design and performance of structures, materials and systems for projects of every size and level of complexity. An employee-owned organization of engineers, scientists, architects and other professionals collaborating from offices worldwide, we support clients by drawing on the diverse expertise of our integrated practices. We are committed to be a sustainable and enduring organization and the global driver of innovation in our industry.