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Welcome to Casco Contractors

Southern California's leading commercial general contractor, Casco Contractors works with diverse companies across every sector to create extraordinary spaces. 


We guide clients through the complex construction landscape, earning trust and confidence as we bring to life customized, state-of-the-art buildings and spaces.


Woman-founded and 100% woman-owned, Casco has earned a reputation for innovation, impeccable customer service and deep industry knowledge.

NWBOC certified
Diversity Supplier
OC Best Places to Work 2022 Award
Casco 20 Year Anniversary
WBENC Certified Logo

The Casco Difference

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Tenant Improvement

Over the last 20 years, Casco has grown into one of the most respected commercial tenant improvement companies in Southern California. With an unmatched commitment to quality, innovation and client satisfaction, we help bring our clients’ visions to life on-time, on-budget and exceeding every expectation.

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Design + Build

In the world of general contracting and tenant improvement, design and construction have always been kept separate. But Casco broke free of that paradigm when it created its in-house design studio that works alongside the build team every step of the way. The result: cost efficiencies, time savings, centralized workflow and a much smoother experience for all.

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Zero Punch

Since 2008, Casco has embraced a Zero Punch™ program that incentivizes employees for completing perfect projects. We take a “Countdown to Zero” approach that includes quality checks and workflow optimizations at every step of the project. We are committed to making day 1 in the new space flawless.

“At Casco Contractors, we don’t change the world, but we create the spaces where other people do.”

— Cheryl Osborn, CEO Casco Contractors

Cheryl Osborn of Casco Contractors


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