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OSTCS is headquartered in a state-of-the-art facility located just outside Los Angeles, CA. The senior leadership team has over 20 years of experience in efficiently managing round-the-clock call centers across many industries, including: Technology, Finance, Mortgage Banking and Higher Education. With our extensive background in providing these high value services, we have built a top-notch team that pairs business acumen with technical competency. We understand that businesses are entrusting their two most valuable resources to us: their customers and the brand. Here at OSTCS we believe in developing Partnerships. Our leadership team and professionally trained staff combine their expertise to provide a service that exceeds our partners’s expectations and ensures confidence their company will be represented in the most professional way possible. We share your passion in presenting a long-lasting positive impression of your company. OSTCS has multiple staffing models which are flexible and can be combined in any configuration to match any Partners needs: > Full-time Support > Blended Support (Inbound/Outbound) > Part-time Support > Flex-time Support Further, we are able to ensure quality and consistency of the services provided by maintaining all of our operations from within the United States.

OSTCS Questions

The OSTCS annual revenue was $26 million in 2026.

5 people are employed at OSTCS.

OSTCS is based in Covina, California.

The NAICS codes for OSTCS are [56, 561].

The SIC codes for OSTCS are [73, 738].

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