Diamond Certified Resource releases the Fall 2026 Diamond Certified Directory Update, featuring enhanced listings of top rated companies throughout the Greater Bay Area.

PETALUMA, Calif., Oct. 26, 2026 /PRNewswire/ -- Diamond Certified Resource has started emailing the Fall 2026 Diamond Certified Directory Update to more than 820,000 homeowners, local business owners, property and apartment managers, and insurance and real estate agents throughout the Greater Bay Area. There are five versions: South Bay, North Bay, East Bay, San Francisco & Peninsula, and Napa & Solano. Every Diamond Certified company is represented with an enhanced listing that includes their phone number, website, owner/manager info, California license number and Diamond Certified Company Report URL.

Only companies that score Highest in Quality and Helpful Expertise® earn Diamond Certified and are featured in this directory. What really separates Diamond Certified ratings from all others is that a large, random sample of each company's customers are surveyed by phone to get the most accurate ratings and verify only real customers are responding. By surveying from a company's entire customer base, Diamond Certified Resource ensures that each company's research results truly represent its customer satisfaction level. And each Diamond Certified company is backed by mediation and the Diamond Certified Performance Guarantee.

As part of their always-free membership, 180,000+ Diamond Certified Preferred Members get immediate access to the Fall 2026 Diamond Certified Directory Update. Diamond Certified Preferred Membership also includes a member hotline, a double Diamond Certified Performance Guarantee, digital downloads and more.

In recent years, the increase in online reviews has given rise to cherry-picked and fake reviews. Anyone can post a review on crowd-sourced sites even if they were never a customer, which inflates the company's star rating and creates a false sense of security for consumers. That's why the Diamond Certified Directory has become such an important resource over the last two decades. It's designed for those who care about quality work done by companies that prioritize customer satisfaction.

"People love our Diamond Certified Directory Updates because they can find the most recent collection of top rated local companies," says Greg Louie, founder of American Ratings Corporation, the creator of Diamond Certified Resource. "The directories are easy to use—just download one to your computer, iPad or Kindle and you'll have instant access to hundreds of Diamond Certified companies across a wide range of service industries, including auto repair, roofing, home remodeling, painting, HVAC, pest control and much more."

Here are the newly released Diamond Certified Company Report SUMMARY UPDATES.
Alexander Company
Atticare Construction
Bay Area Drainage, Inc.
Castles Home Service
Chimney Clean Company
City Carpets
Crandall Roofing Inc.
Devengenzo & Company
Eun Mi Enterprise Inc., Elite Master Cal Builders
Fine Tree Care
Fremont Foreign Auto
Gold Hammer Construction, Inc.
Gonzalez Fence Co.
Got Watts Electric, Solar & HVAC
Gray Plumbing Inc
Heavenly Touch
Monterey Bay Heating and Cooling
Ongaro & Sons
Prime Time Athletic Club
SunMade Smart Roofing, Solar & Electric
Thompson Construction, Inc.

It's easy to find top rated companies in the San Francisco Bay Area and Other Areas on Diamond Certified Resource.
Alameda County
Contra Costa County
El Dorado County
Fresno County
Los Angeles County
Marin County
Milwaukee County
Monterey County
Napa County
Orange County
Placer County
Sacramento County
San Benito County
San Francisco
San Joaquin County
San Mateo County
Santa Clara County
Santa Cruz County
Solano County
Sonoma County
Yolo County
Yuba County

About American Ratings Corporation
American Ratings Corporation (ARC), the creator of Diamond Certified Resource, the source for consumers who love quality local companies, rates local companies by surveying only their verified real customers to produce the country's most accurate ratings of local companies. It also creates deeply researched company reports and consumer guides that give consumers the best companies plus the best advice for choosing a local Auto, Home, Health or Personal service type of company.

Only companies rated Highest in Quality and Helpful Expertise^® earn Diamond Certified and are backed by their Performance Guarantee. All their deeply researched reports and guides are available for free at diamondcertified.org. They also produce an annual, full-color, printed Diamond Certified Directory with 840,000 copies published in 9 geographic zones in the Greater San Francisco Bay Area. Each April, these are mailed for free to their 182,000 Diamond Certified Preferred Members and selected homeowners and companies.

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SOURCE American Ratings Corporation