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Simplify your back office

Back office made effortless.

Scale your business

Grow big, without the growing pains.

Trust our expertise

Proven knowledge. Reliable results.

Get To know US

At One Numerica, we believe in the power of partnership.

Backed by JCSN Corp, we provide U.S. businesses with reliable accounting and outsourcing solutions that blend the best of
both worlds:

Together, we help you scale smarter, faster, and with confidence.

Jone Lagrosa

CEO, One Numerica
What We Do

Accounting Services

Bookkeeping & Financial Reporting

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Tax Preparation & Compliance

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Payroll Processing (U.S. & P.H. Integration)

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Budgeting & Cash Flow Management

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Outsourcing Services

Human Resource

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Recruitment

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Payroll Processing (US & PH Integration)

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Tax Preparation Compliance

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Global standards. Heartfelt service.

At One Numerica, we combine trusted accounting expertise with reliable back-office support to help your business run smoothly and scale effortlessly.

WHy choose one numerica

We Go Beyond Numbers

We deliver reliable accounting and outsourcing solutions designed to reduce costs, improve efficiency, and scale with your business. With exceptional Filipino talent and U.S.-standard expertise, we give you the confidence to focus on growth while we take care of the rest.

Testimonials

I can't sing the praises of One Numerica highly enough. After a personnel change at my church, we needed to find someone quickly to do our bookkeeping, and One Numerica was the right choice. They came in, assessed our situation, and implemented appropriate processes immediately, all the while keeping in constant contact with our leadership. One of our major challenges was switching from QuickBooks Desktop to QuickBooks Online. We worked with two other consultants who said there was a $4million discrepancy that they couldn't reconcile, but One Numerica did it! I'm very impressed with their depth of knowledge and great customer service.

Kirby Smith

Interim Priest-in-charge, St. David's Episcopal Church and Preschool

JCSN changed the reality and direct of my business. After struggling for years to find right bookkeeping and financial management JCSN was the pleasant surprise.. the team first came in and did a full financial audit and found problems my expensive CPA firm created. They reorganized my chart of accounts to align to the business I was actually doing and created financial visibility I would have expected from a large firm. They also helped me with my financial systems to ensure my AP/AR was working perfectly. Later we expanded services for AP/AR and worked hand in hand with my sales and fulfillment teams... They have been a real partner to my company and was because of the help I was able to grow my business from 300k to 3M.

Daniel H

Business Owner

"JCSN was godsend for us. After some unexpected turnover, we were managing payroll, pensions, health savings accounts, pledge accounting, tuition billing and receipts, and vendor payments for both a church and its school using volunteers. Joana and her team first took the time to understand the diverse and sometimes hostile systems with which we work and then took over task after task: streamlining and improving controls. They have worked to understand our business and improve its operation. My sleep has dramatically improved."

Glover Ferguson

Business Owner

During my tenure as the St. Andrew's By The Sea Treasurer for the last two years, I've been grateful for the services of Joana and the JCSN team. They've done an excellent job managing all the Church's needs, spanning Accounts Receivable/Payable, Donor Relations, Accounting Close, and Payroll. They have been diligent in partnering with the Church staff to improve processes and ensure accuracy in our reporting. Through a combination of on-site and remote support, the JCSN team has made my life a lot easier.

Andrew Clendenin

Treasurer, St. Andrew's By The Sea
RESOURCES

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    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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