Redwood Electric Group has provided electrical construction and design services since 1974. We have over 1200 employees and revenues exceeding $450 million. Our business continues to reflect strong growth through innovation and our team's commitment to exceed customer expectations. We operate from offices located in Santa Clara, San Francisco, Vacaville and Sacramento and will perform work throughout the West Coast. Our Professional Engineers, Project Managers and Field Personnel collaborate to deliver a product that is timely, cost effective and utilizes the latest technologies. From providing state of the art prefabrication to "just-in-time"​ deliveries, our teams are constantly seeking to improve our means and methods. This results in improved schedules, lower costs and higher quality installations. At a Glance Over 40 years of service 90 percent of our work is for repeat customers One of the West Coast's largest IBEW Contractors Complete design build services Comprehensive preconstruction services Life safety, security and network cabling design

EandM is the West Coast Leader in Automation. We represent the best automation companies in the world and since 1955, we have been providing our customers with the best products, resources, solutions and support in the world. We offer solutions to maximize your company's operational success and as a true automation solutions provider, we offer certified training classes, certified workshops and FREE tech support. Our commitment to you means – accurate answers now and no communication confusion!

Blakeslee Electric Inc is a construction company based out of 14 W 3rd St, Santa Rosa, California, United States.

Founded by Marv Soiland in 1962, Soiland Company is a second-generation family business based in Sonoma County. We manufacture and sell aggregate rock, soil, compost, and mulch products from our three locations: Stony Point Rock Quarry, Grab N’ Grow, and Soils Plus.

Formerly Goebel Paving, Grading, & Underground Inc. Servicing the Bay Area's private and industrial facilities since 1976. Specializing in grading & paving, mechanical piping, underground construction, and environmental remediation, Goebel prides its self on it's outstanding safety record and client relationships. We've built a team of high-caliber, hard working professionals who offer cost-effective, insightful solutions that fit our clients needs.

AHLBORN STRUCTURAL STEEL INC is a company based out of 1230 CENTURY CT, SANTA ROSA, California, United States.

Peterson Mechanical provides mechanical construction services to the greater San Francisco Bay Area. Our work includes HVAC installations, plumbing systems, process piping and commercial refrigeration. We’ve met the specialized needs of laboratories, tech buildings, wineries, hospitals and high rises. Founded in 1915 in Sonoma, CA, where we’re still headquartered, Peterson has always adopted the most recent technologies. Our engineers use the latest 3D drafting (CAD), computer-aided manufacturing (CAM) and building information modeling (BIM) systems. Our team of professionals can work with a client from initial planning to project completion. To learn how design-build and design-assist can increase the efficiency of a project, visit our showcase page at right. We’re also continuing our century-long tradition of installing, maintaining and repairing home heating and cooling systems. Follow the link at right for details on our residential HVAC service. We also invite you to contact us through our website or by phone at (707) 938-8481.

As one of the largest groundwater firms in the state, Weeks Drilling & Pump Co. has been serving Northern California since 1906. With a longstanding reputation for integrity, Weeks offers a complete range of water supply solutions. Our four departments work closely with one another to serve residential, commercial, and municipal customers. From drilling a well and installing a pump system, to designing and installing filtration systems, to managing many local public water systems, Weeks applies unique multi-generational knowledge and experience to ensure our community has safe, clean water. When you think of water, think of Weeks!

ERNEST ONGARO & SONS, INC is an individual & family services company based out of 2995 DUTTON AVE, Santa Rosa, California, United States.

Knights'​ Electric, Inc., established in 1976, is a full service electrical contractor serving the North Bay. The commercial department is an industry leader in motor controls and automation integration with extensive experience in new construction, remodeling and retrofit projects that include industrial plants, commercial retail and wineries. Knights'​ Electric offers residential custom home new construction and remodeling, specializing in automated home lighting systems and audio visual systems. Knights'​ Electric EEMS Services offers maintenance, repair and protection for customer's electrical power service systems, preventing costly electrical failures and downtime, while monitoring and maintaining power quality for the customer's facility.

San Francisco Bay Area's Trusted Roofing Contractor Since 1976, with Award Winning Residential and Commercial Roofing Services in Marin County, Sonoma County, San Francisco and Napa. https://www.wedgeroofing.com • CA Licensed Roofing and General Contractor #416737 • Top 100 Roofing Contractors Nationwide • GAF Master Elite Contractor • CertainTeed Select Shingle Contractor • Certified Spray Foam Roofing Contractor • GAF Certified Green Roofing Contractor • National Roofing Contractors Assoc. Gold Circle Award 2016 • Best Spray Foam Roof Nationwide Award 2015, 2016 and 2017, 2018, 2019 • Liability and Workers Compensation Insurance • 47 year History of Quality Roofing in the SF Bay Area • California Certified Journeyman Roofers • Manufacturer Trained & Certified Roofing Professionals Wedge Roofing specializes in cost-effective, high-quality new roofing, reroofing, roof repairs, roof coatings, emergency roof leak repairs, roof maintenance, solar roofing and eco roofing for residential and commercial buildings.

BAYSIDE STRIPE AND SEAL, INC. is a company based out of P.O. BOX 703, PETALUMA, California, United States.