cornerstone ISN Contractor Safety Management
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Clients >>

Our Clients

Cornerstone Technologies, Inc. has established successful client relationships throughout California and the U.S. Cornerstone provides clients with excellent services focused on meeting client expectations.

Industrial and Manufacturing
  • A.C. Products
  • Adams Services
  • Advanced Industrial Recycling
  • Alumax Mill Products
  • Anthony Manufacturing Company
  • Armstrong World Industries, Inc.
  • BagHouse Services/Weelabrator
  • Beneson Productions
  • Cal-Style Furniture
  • Carol Wior Swimsuits
  • Clow Valve
  • Coronet Manufacturing Company
  • CW Building Material Supply, Inc.
  • Details, Inc.
  • Douglas Furniture
  • EngelHard
  • Environmental Dynamics
  • Foamex International
  • Frigid Coil
  • Fronteir Aluminum
  • Gaiser Tool Company
  • GNB Technologies
  • Heinz Corporation
  • Hydrostabilization, Inc.
  • Ink Systems, Inc.
  • Masco Corporation
  • Metalite Manufacturing
  • Motorcar Parts of America
  • Putzmeister, Inc.
  • Rosen´s Electrical
  • Rubbermaid Products
  • Santa Ana Plating
  • Santa Fe Extruders
  • Serious Entertainment
  • Siimpel
  • Steffen Robertson & Kristen
  • Stewart & Stevenson
  • Sumitomo Products
  • Superior Industries
  • Tannas Electronics
  • Tetra Process Services
  • Thomas   Betts
  • Thompson Building Materials
  • Tiger Services
  • Total Intermodal
  • TPI Group, Inc.
  • Van Law Foods
  • Westide Building Material Corporation

Municipalities and Institutions
  • California State University of Los Angeles
  • City of Colton
  • City of Cypress
  • City of Lawndale
  • City of Long Beach
  • City of Lynwood
  • City of Montebello
  • Cypress College
  • Diocese of San Bernardino
  • Mt. San Antonio College
  • North Orange County Community College District
  • Rose Hills Cemetary
  • SMAS
  • Sonoma State University
  • South Coast Air Quality Management District
  • Southern California
  • Southern California Water Company
  • Synthetic Organic Chemical Manufacturing

Technology
  • American Purification, Inc.
  • AT&T Wireless Services
  • Ceradyne, Inc.
  • City of Lawndale
  • Costner, Inc.
  • Honeywell Turbo Technologies
  • Petro Energy
  • Phenomenex, Inc.
  • Resource Renewal Tech.
  • South Coast Circuits, Inc.
  • Sprint Nationwide Services
  • SPS Technologies

Construction
  • AMELCO Construction
  • Granite Construction
  • Primus Building Group
  • Bolster Flooring
  • HAR Construction
  • Vulcan Materials Company
  • CNS & Associates Inc.
  • Kewite-Pacific
  • Global EMS
  • M&S Construction

Architects and Engineers
  • Advanced Environmental
  • Advanced GeoServices
  • CCA Associates
  • Costner Incorporated
  • Foss Environmental
  • G.A. Engineering, Inc.
  • GPRA
  • M.A. Francis
  • PAL International
  • PS Environmental
  • Ralph M. Stone
  • Resource Renewal Technology
  • Roy R. Weston
  • Systems Engineering Company
  • The Kendall/Adams Group

Petrochemical
  • Asbury Environmental
  • Chevron Mobil Oil Corporation
  • Enviropur West
  • ENVIROSERV
  • K-VAC Environmental
  • PSI
  • Sav-On Fuel
  • USA Petroleum Corporation
  • Vince’s Auto Center
  • W.R. Rogers

Transportation
  • B&H Towing Services
  • BMW of North America
  • BMW Valencia
  • California Cars
  • Catalina Freight Line
  • International Transport Services
  • Landrover SouthBay
  • Long Beach Transit
  • Montebello Transit
  • Smart Truck Systems
  • Taxi Systems, Inc.
  • Toyota Motor Corporation

Healthcare
  • Citrus Valley Medical Center
  • Paul N. Kalish, DDS
  • Valley Presbyterian Hospital
  • Cloverleaf Healthcare Center

Banks and Asset Managers
  • American First Financial
  • AMRESCO
  • Bank of California
  • Bankers Financial Group
  • First Manhattan Funding
  • General Bank
  • GMAC Commercial Mortgage
  • Hawthorne Savings
  • Marathon Commercial
  • MTGT Manhattan Ltd.
  • Nevander Asset Management
  • Project Resources, Inc.
  • Queen City Bank
  • Regency Bank
  • Republic Bank
  • Reslution Trust Corp. (Denver & Texas Office)
  • Upland Bank
  • Wellington Mortgage
  • Western Federal Savings Bank
  • Weyerhaeuser Mortgage

Real Estate
  • CB Richard Ellis
  • Central Brooklyn Inc.
  • Consumers Holding Company
  • EDR Enterprises
  • Emery Associates
  • Everest Properties
  • First Team Real Estate
  • Grubb & Ellis
  • Kaufman & Board
  • Komar Investments
  • Landmark Land Company of Louisiana
  • Lee & Associates
  • Legion of Christ
  • Lilly Enterprises, Inc.
  • Pacific Coast Realty
  • Place Properties
  • Prentiss Properties
  • Property Management
  • RKB Investments
  • Stuart Makler & Assoc.
  • The Call Company
  • The Fifth Day
  • Wakai & Associates

Law Firms
  • Foley & Pool
  • Fullerton & Lemann
  • Graham & James
  • Latham & Watkins
  • Law Offices of Norman Rasmussen
  • Newmeyer & Dillion
  • Rasmussen Coomber,LLP
  • Ris Law
  • TASA

Aerospace
  • Gulfstream Aerospace
  • Hermetic Seal Corporation
  • LAX Fuel Corporation
  • National Technical Systems, Inc.
  • Parker Hannifin

Contact one of our expert environmental engineers for more information about what we can do for your project.