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.
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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].