Safety, Quality, Integrity

Our Clients

Wed, September 20, 2017

Corey Delta believes that human relationships are the key to successful business. Trust, based upon a track record of consistent performance, provides the cornerstone for these bonds. We have learned that candor, professionalism and mutual respect can overcome any obstacle. We always endeavor to foster an enjoyable work environment.

Are you a potential client looking for more information about Corey Delta? Please call us.

261 Arthur Road
Martinez, CA 94553
Ph. 707.747.7500
Fx. 925-370-9877

contact Corey Delta Constructors


Client Reviews and Testimonials

client testimonial letter from Calbee AmericaOur entire family at Calbee America, Inc. would like to express our sincere gratitude and appreciation to the entire Corey Delta Team for the stellar work you displayed and your tireless effort and dedication in building our beautiful new Fairfield plant. We recognize your efforts to respect the needs and requirements of our company at every turn. We have successfully made it through our first week of production and couldn't have done it without your commitment and hard work. Again, thank you.

Masanori Yasunaga, President
Calbee America, Inc.

Cleint reviews and Testimonials

testimonial satisfied customer pan pacific cement californiaOn behalf of Pan Pacific Cement, we would like to thank you for the role you played in building our cement import terminal in West Sacramento, California. We are extremely pleased with our state of the art terminal and the important role it will play in the supplying construction materials to the region.

We would like to complement the entire Corey Delta Team for their professionalism, integrity, focus and high level of experienced personnel. We presented you with a challenging design-build project that you exceeded our expectations on. It was a pleasure working with you. Thank you again.

Mike Roth, President
Pan Pacific Cement

Client Reviews and Testimonials


Corey Delta has trained craftspeople utilizing industry standard curriculum since 1983. Our training has proven it's portability on many occasions and, until recently, we offered welding training in Sonora, Mexico.   

Many of our craftspeople possess nationally accepted certifications of journeyman status obtained through our NCCER training classes.

Corey Delta Constructors has provided services to our clients for more than thirty-five years. The following is a representative list of clients we are currently serving or have served in the past. Corey Delta currently holds contractors' licenses and has active corporate status in seven western states including Washington, Oregon, California, Nevada, Utah, Arizona and Hawaii.

  • Alcoa Aluminum
  • Air Products & Chemicals Corporation
  • Barry-Wehmiller Design Group
  • Bay Area Coffee
  • Beaulieu Vineyards
  • Bechtel Corporation
  • Belvedere Winery
  • Beringer Wine Estates
  • Blue Diamond Growers
  • BHP Mining
  • C & H Sugar
  • Calaveras Cement Company
  • Calbee America Snacks
  • California Oils Corporation
  • Calpine Corporation
  • Campbell Soup Company
  • Canandaigua Wine Company
  • Cargill Salt
  • Carneros Creek Winery
  • Central Concrete, Inc.
  • Certainteed Corporation
  • Charles Krug Winery
  • Chevron Chemical Company
  • Chevron Pipeline Company

  • Chevron U.S.A., Inc.
  • Conoco Phillips 66 Refining Company
  • Criterion Catalyst Company
  • Dow Chemical
  • Duke Solutions
  • E&J Gallo Winery
  • Evergreen Oil Company
  • Fluor Daniel, Inc.
  • Franciscan Oakville Estate
  • Frito-Lay, Inc.
  • Gaylord Container
  • George Reed Company
  • Golden State Vintners
  • Granite Rock Company
  • GWF Power Systems Company, Inc.
  • Hanson Aggregates
  • Harter Packing Company
  • Hawaiian Cement
  • Ingomar Packing Company
  • Jacobs Engineering Group
  • Joseph Phelps Vineyards
  • Kagome Corporation
  • Kraft Foods
  • Lehigh Southwest Cement

  • Nevada Cement Company
  • Ogden Energy
  • Parsons Constructors
  • Praxair
  • Proctor & Gamble
  • Quaker Oats Company
  • Rhodia, Inc.
  • Rio Bravo Tomato Company
  • RMC Pacific
  • Robert Mondavi Winery
  • Rohm and Haas Company
  • Rombauer Vineyards
  • Shell/Martinez Refining Company
  • Smurfit Stone
  • Stimson Lane Vineyards
  • Tesoro Refining Company
  • The Clorox Company
  • The Morningstar Company
  • U.S. Filter
  • Valero Energy Corporation
  • West Coast Aggregates