Tugging for Your Success

Professional Outsourcing Solution with Integrity.
Your Professional Business Partner.
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Our Services

From accounting to tax compliance, our experienced team of professionals will help you streamline your business processes. We help you save money and time, enabling you to focus on what you do best. Explore our full range of services below.

Expanding Your Business to the U.S.

We have years of experience in supporting businesses to grow internationally. There are variety of considerations to keep in mind when entering the U.S. market. We will help you to create and maintain a company in the U.S. and advice you for its successful business.

Accounting & Payroll Outsourcing

A U.S. Certified Public Accountant (CPA) will take the lead and help you with your accounting work and Preparing payroll and keeping up with the latest labor laws consume time better spent on your core business activities. Let us handle your payroll and HR needs.

Tax & CPA Services

Our experienced tax experts are ready to offer you assistance in the following areas to maintain your compliance with your statutory return, disclosure and documentary obligations – and even more than that.

Comprehensive Support for Your Business in the U.S.

We will guide you setting up your business in the U.S. as your close professional partner. Once a company has established a presence in the U.S., we also provide one-stop support by our professional staff handling complicated administrative tasks, such as accounting and payroll and CPA so local staff can focus on their core business operations without unnecessary risks and costs.

Customer Success Stories

Customer Success Stories

Virtual Office Support

Our client, a successful Japanese medical equipment manufacturer, needed to compete locally in an increasingly competitive U.S. market.

The Problem

U.S. sales were declining due to increasing competition from local traders and manufacturers.

Expatriate Payroll Processing

Our client, a holding company with 30 expatriates and three local employees was suffering under the burden of complicated payroll processing. Japanese salaries and non-monetary salaries had to be grossed up along with U.S. salaries.

The Problem

Our client needed to perform gross-up calculations on salaries, allowances, and non-monetary benefits while in the U.S. This operation was being handled by a human resources representative from Japan but he needed support. Additionally, the company wanted to keep expatriate salaries confidential.

Accounts Payable (AP) and Accounts Receivable (AR) Accounting

Our client’s senior management was seeking ways to handle their accounting department’s AP and AR functions in a more cost-effective, centralized, and efficient way.

The Problem
  • As a large-scale business, AP and AR functions were segregated and inefficiently spread out among multiple employees.
  • Our client was in the costly situation of having more than 10 employees handling AP and AR.

About Us

Professional Outsourcing Solutions, Inc. (POSI) is a firm specializing in all in one business processing support in the U.S.

Impact by Numbers


Years of Experience Supporting Clients in the U.S.


Entity Clients of Accounting & Tax Services


Payroll & Individual Tax Clients


Professional Staff Members


Licensed CPAs

Download Our Service Brochure

Need a printable version of our service summary?
Download our PDF brochure.