Top 500 2024

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Reyff Electric, Inc has been serving Sonoma, Marin, Napa and Solano counties for over 40 years. We are a Diamond Certified Company that has received the Press Democrat’s Readers Choice Award as well as others. We have been recognized by the the Guard and Reserve as a “patriotic employer.” We invest in our employees’ futures through electrical apprenticeship programs and many training certification programs, which leads to quality workmanship for our customers. Our projects have included the build out of restaurants, large hotels, car dealerships, apartment complexes, wineries, residential and custom homes. We also offer a service department that provides residential and commercial service for smaller projects. Over the years we have supported Rebuilding Together, the Boy Scouts of America, Future Farmers of America, various youth sporting teams and sporting programs at all school levels. 177 Costco Wholesale Costco’s mission is to continually provide its members with quality goods and services at the lowest possible prices. Costco has 874 warehouses worldwide and is the third-largest global retailer in the world. 178 SCHURTER Inc Announced in January of 2023, the majority of the Schurter family-owned business, Schurter Holding AG based in Lucerne, Switzerland was acquired by a Swiss investment firm, Capvis AG. Schurter operates as a global technology company and producer of components for ensuring the clean and safe supply of power, and HMI systems. Capvis specializes in holding majority stakes in leading SMEs in Europe and has been named by the international press as the top private equity company in Switzerland. The actual transfer of ownership took place in spring 2023.

Schurter Inc based in Santa Rosa, California continues to operate independently and successfully as a subsidiary of Capvis AG. 179 Marin Sanitary Service 181 Quattrocchi Kwok QKA provides comprehensive master planning and design services for K-12 and higher education, historic renovation and community facilities in Northern California. With more than $2.5 billion in projects completed in its 38-year history, QKA’s award-winning portfolio reflects a commitment to design that emphasizes environmental sustainability and community impact. Building Design + Construction has recognized QKA as one of the nation’s top K-12 and BIM (building information modeling) architecture firms. Engineering News-Record has called it one of America’s top design firms. Majority employee-owned through an Employee Stock Ownership Plan (ESOP), QKA continually lands on the North Bay Business Journal’s “Best Places to Work” list. Visit qka.com to learn more 186 Silver Oak Family owned for more than 50 years, Silver Oak has produced cabernets aged exclusively in American oak. Its exceptional, food-friendly wines are both drinkable upon release and worthy of cellaring for decades to come. Ray Duncan founded Silver Oak with Justin Meyer in 1972, and it’s now owned and operated by Ray’s sons, David and Tim, with a commitment to innovative and sustainable viticulture practices across its vineyard properties, winemaking facilities, tasting rooms and cooperage. In addition to acquiring OVID Napa Valley in 2017, the Duncan family also founded Twomey Cellars in 1999 and Timeless Napa Valley in 2020.

with developmental disabilities in the community by providing a lifetime of compassionate support in an atmosphere of respect, inspiration and purpose. 172 Simpson Sheet Metal Inc. Simpson Sheet Metal, Inc. is a family- and woman-owned business located in Santa Rosa. Simpson Sheet Metal has been in business for more than 40 years. The Simpson team provides full HVAC services for residential and commercial work in the Sonoma, Napa, Marin and Lake counties. In addition to new construction, the Simpson team provides service and preventative maintenance on existing HVAC systems, as well as a team that replaces HVAC equipment. The Simpson shop fabricates kitchen hoods, counter tops and custom-metal products out of copper, stainless steel, zinc and other metals. Simpson Sheet Metal was voted the Best HVAC contractor in Sonoma County for multiple years in a row. 175 Team Ghilotti Inc. Team Ghilotti is a trusted construction partner serving North Bay municipalities, public works agencies, private enterprises and commercial developers. The company specializes in grading, paving, underground utilities, site work and emergency services and repair. Team Ghilotti provides accurate assessments, problem-solving strategies and quick responses to deliver progress clients need and the quality that they can trust. The company prides itself on a company culture of mutual respect, mentorship and continued skill development to ensure the company is achieving standards that are second to none. 176 Reyff Electric Co.

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28 NorthBaybiz

500 Bonus Issue 2024

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