What is One Numerica?

One Numerica is a California-based accounting and BPO outsourcing firm, wholly owned by JCSN Corp, serving U.S. businesses through a team of skilled professionals based in the Philippines.

Our office is in San Diego, California, with our delivery team based in the Philippines — giving clients U.S.-based accountability with Philippine-based efficiency.

We work with small and medium businesses, startups, ministries, and non-profits across the U.S.

Bookkeeping and financial reporting, tax preparation and compliance, payroll processing (U.S. and Philippines integration), and budgeting and cash flow management.

Yes — our team has direct experience managing full migrations, including reconciling complex discrepancies.

HR support, Employer of Record (EOR) services in the Philippines, recruitment, payroll support, business process outsourcing (BPO), and customer service and call center solutions.

An EOR lets you legally hire talent in the Philippines without setting up your own local entity — we handle compliance, payroll, and benefits while you manage day-to-day work.

Schedule a free consultation through our website. We will assess your needs and recommend the right service mix.

One Numerica is a California-based firm offering Accounting and Outsourcing solutions that help businesses focus on growth. Backed by JCSN Corp, we combine U.S. expertise with high-class Filipino professionals to deliver reliable, scalable, and cost-effective services.

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